Dr. Stefan Kern

2024:

Olsen, I., H. Skourup, H. Sallila, S. Hendricks, R. Fredensborg Hansen, S. Kern, S. Paul, M. Bocquet, S. Fleury, D. Divine, and E. Rinne: Reference observations in support of sea ice altimetry missions - An overview and future needs. Poster presentation, Polar Science Week, Sep. 5-9, 2024, Copenhagen, Denmark.

Skourup, H., I. Olsen, S. Fleury, R. Fredensborg Hansen, H. Sallila, S. Hendricks, S. Kern, S. Paul, M. Bocquet, S. Fleury, D. Divine, and E. Rinne: Reference observations in support of sea ice altimetry missions - An overview and future needs. Oral presentation, 30 Years of PRogress in Radar Altimetry Symposium, Sep. 2-7, 2024, Montpellier, France.

2023:

Flocco, D., P. Falco, E. Zambianchi, and S. Kern: Analysis and interpretation of sea ice state variables in the Ross Sea: Prelimnary results. Poster presentation, Ross SEea Conference, July 3-7, 2023, Naples, Italy.

Kern, S., R. T. Tonboe, W. M. Kolbe, and T. Lavergne: Comparing ESA's Sea_Ice_cci Nimbus-5 ESMR sea ice concentration product v1.0 with Landsat imagery - first results. Poster presentation, IGS Symposium on Sea Ice, June 5-9, 2023, Bremerhaven, Germany.

Kern, S., C. Garcia Izquierdo, C. Mortimer, S. Arndt, J. Ukita, Y.-A. Roulet, L. Sandberg-Sørensen, A. Munck Solgaard, C. Hauck, M. Huss, and E. Woolliams: Metrology for Climate Action - Topic 1E: Cryosphere Monitoring - Needs and recommendations in cryosphere monitoring, chapter 6 of BIPM Rapport BIPM-2023/03 and WMO IOM Report No. 142,  June 20, 2023. https://www.bipm.org/en/publications/rapports-bipm [last access July 19 2023].

Lavergne, T., S. Aaboe, S. Kern, et al.: About sea ice essential climate variables of the Global Climate Observing System - Recent development. Oral presentation at the Arctic Sea Ice Working Group (ASIWG) Meeting, June 4, 2023, Bremerhaven, Germany.

2022:

Kern, S., Lavergne, T., Pedersen, L. T., and Tonboe, R. T.: About three principal uncertainty sources in gridded sea-ice concentration products from satellite microwave imagery. Poster at Online BIPM/WMO Workshop on "Metrology for Climate Action", September 26-30, 2022, https://www.bipmwmo22.org/

Kern, S., Lavergne, T., Pedersen, L. T., and Tonboe, R. T.: About Inter-comparison of sea-ice concentration climate data records. Oral Presentation, 2nd GCOS Climate Observations Conference, October 17-19, 2022, Darmstadt, Germany.

Lavergne, T., and S. Kern: On shared and essential variables. Oral presentation at Arctic Observing Summit (AOS) 2022, Tromsø, Mar. 26-Apr. 1, 2022.

Lavergne, T., A. Sørensen, E. Down, S. Kern, R. Tonboe, L. T. Pedersen, M. Kreiner, A. Birkedal, R. Saldo, S. Aaboe, M. A. Killie, S. Eastwood, and D. Notz: Upcoming sea ice concentration and sea ice drift climate data records from ESA CCI and Eumetsat OSI SAF, Poster at Arctic Science Summit Week (ASSW) 2022 / Arctic Observing Summit (AOS) 2022, Tromsø, Mar. 26-Apr. 1, 2022.

Lavergne T., Kern S., Aaboe S., Derby L., Dybkjaer G., Garric G., Heil P., Hendricks S., Holfort J., Howell S., et al., A New Structure for the Sea Ice Essential Climate Variables of the Global Climate Observing System. Cryosphere 2022 - INTERNATIONAL SYMPOSIUM ON ICE, SNOW AND WATER IN A WARMING WORLD, August 21-26 2022, Reykjavik, Iceland.

Lavergne T., Kern S., Aaboe S., Derby L., Dybkjaer G., Garric G., Heil P., Hendricks S., Holfort J., Howell S., et al., A New Structure for the Sea Ice Essential Climate Variables of the Global Climate Observing System. Oral Presentation, 2nd GCOS Climate Observations Conference, October 17-19, 2022, Darmstadt, Germany

Newman, L., A. M. Hancock, E. Hofmann, M. J. M. Williams, S. F. Henley, S Moreau, P. Bricher, S. Ackley, J. Beja, J. A. Caccavo, S. Diggs, S. Fawcett, P. Fretwell, S. Gille, P. Heil, L. Herraiz Borreguero, J. Höfer, P. ten Hoopen, S. Kern, J. Kool, D. Lannuzel, R. Massom, M. Mazloff, A. Meijers, B. Ozsoy, L. Ponzi Pezzi, B. Pfeil, M. du Plessis, M. N. Raphael; J.-B. Sallee; O. Schofield, I. Schloss, E. H. Shadwick, S. Swart, E. van Wijk, K. Altieri, A. Barbosa, S. Barreira, G. Budillon, K. Casciotti, F. Colleoni, K. Currie, M. Frey, S. Halfter, K. Hendry, W. Hobbs, M. Janout, R. Kerr, P. Kukliński, M. LaRue, T. Martin, C. R. McMahon, C. R. B. Mendes, L. Miller, P. Miloslavich, E. Murphy, J. Nishioka, A. Novellino, B. Y. Queste, W. Rack, P. Rivaro; A. Schiller, W. Smith, C. Stevens, S. Tripathy, Z. Wang: The Southern Ocean Observing System 2021-2025 Science and Implementation Plan, 55p, 2022, https://doi.org/10.5281/zenodo.6324359 . Scientific Committee on Oceanic Research
(SCOR) and the Scientific Committee on Antarctic Research (SCAR).

Wernecke, A., Kern, S., Notz, D., and Lavergne, T.: A new perspective for quantifying the sea ice area uncertainty. Poster at Online BIPM/WMO Workshop on "Metrology for Climate Action", September 26-30, 2022, https://www.bipmwmo22.org/

Wiemer, G., Agostinho Nogueira, M., Bauer, K., Becker, M., Binder, K., Brix, H., Droste, C., Feenders, C., Feistel, S., Freiherr von Lukas, U., Frickenhaus, S., Gerdes, J., Glöckner, F. O., Hemmelskamp-Pfeiffer, B., Jurasinski, G., Kern, S., Kleeberg, U., Kösters, F., Liebers-Helbig, D., … Voss, D. (2022). Forschungsdatenmanagementkonzept für die deutsche Meeresforschung (Version 1). Zenodo. https://doi.org/10.5281/zenodo.8232832

2021:

Wiemer, G., Agostinho Nogueira, M., Bauer, K., Becker, M., Brix, H., Droste, C., Feenders, C., Feistel, S., Freiherr von Lukas, U., Frickenhaus, S., Gerdes, J., Glöckner, F. O., Hemmelskamp-Pfeiffer, B., Jurasinski, G., Kern, S., Kleeberg, U., Kösters, F., Liebers-Helbig, D., Lorenz, S., … Voss, D. (2021). DAM-Forschungsdatenleitlinie. Zenodo. https://doi.org/10.5281/zenodo.8341227

2020:

Lavergne, T., R. Tonboe, L. T. Pedersen, A. M. Sørensen, W. Kolbe, R. Saldo, S. Kern, D. Notz, M. Mäkynen, and S. Eastwood: Sea ice concentration from passive microwave satellites for climate monitoring - Improved algorithm baseline towards next version of ESA CCI and Eumets at OSI SAF climate data records, Poster at European Polar Science Week,  Virtual Event, Oct. 26-30, 2020.

Mäkynen, M., R. Tonboe, T. Lavergne, L. T. Pedersen, S. KErn, and V. Nandan: Reduction of Regional Uncertainty in Radiometer Sea Ice Concentration Data, Poster at European Polar Science Week, Virtual Event, Oct. 26-30, 2020.

2019:

Kern, S., T. Lavergne, D. Notz, L. T. Pedersen, R. T. Tonboe, R. Saldo, and A. M. Sørensen: Inter-comparison of ten sea-ice concentration products,Oral presentation at Joint IICWG-YOPP-GOV-KEPLER 9th International Workshop on sea-ice data assimilation, modeling, and verification, Bremen, Germany, June 17-19, 2019

Lavergne, T., A. M. Sørensen, A. Neuville, S. Kern, L. T. Pedersen, D. Notz, R. T. Tonboe, S. Eastwood, D. Notz, G. Dybkjær, M. Kreiner, J. Lavelle, R. Saldo, M. A. Killie, W. Kolbe, S. Aaboe, C. Wettre, and R. Mottram: The sea ice concentration Essential Climate Variable: coordinated contributions by the ESA CCI and EUMETSAT OSI SAF, Contribution A2.10, Poster at ESA Living Planet Symposium 2019, Milano, Italy, May 13-17, 2019, figshare: https://doi.org/10.6084/m9.figshare.8174753.v1.

2018:

Frost, T., S. Kern, and G. Heygster: Snow depth on Antarctic sea ice from passive microwave satellite observations: Time series and trends 2002-2017, Poster at POLAR2018, Davos, Switzerland, June 19-23, 2018.

Kern, S., L. Bell, M. Meyer, L. T. Pedersen, R. Saldo, and L. Zimmermann: ESA-CCI sea-ice (SICCI) project phase 2 report: D4.1. Product Validation and Intercomparison Report for sea-ice concentration (PVIR-SIC), Version 1.1, SICCI-PVIR-SIC, July 23, 2018.

Kern, S., L. Bell, K. Khvorostovsky, and H. Skourup: ESA-CCI sea-ice (SICCI) project phase 2 report: D4.1. Product Validation and Intercomparison Report for sea-ice thickness (PVIR-SIT), Version 1.1, SICCI-PVIR-SIT, July 23, 2018.

Kern, S., A. Köhl, T. Lavergne, X. Liu, L. Niederdrenk, D. Notz, and D. Stammer: ESA-CCI sea-ice (SICCI) project phase 2 report: D4.2. Climate Assessment Report (CAR), Version 1.0, July 23, 2018.

Kern, S.: Inter-disciplinary studies in the Polar environment using satellites: Benefits and Limitations, Oral presentation at POLAR2018 APECS World Summit, Davos, Switzerland, June 18, 2018.

Kern, S., L. Bell, and L. T. Pedersen: Impact of melting snow and melt ponds on AMSR-E sea-ice concentration, Poster at POLAR2018, Davos, Switzerland, June 19-23, 2018, A-938-0058-00970.

Kern, S., L. Bell, T. Lavergne, and M. Meyer: Evaluation of passive microwave sea-ice concentration products with Landsat data, Poster at POLAR2018, Davos, Switzerland, June 19-23, 2018, A-938-0056-00972.

Kern, S., L. Bell, G. Heygster, T. Lavergne, L. T. Pedersen, R. Saldo, A. M. Sørensen, R. T. Tonboe, and S. Sandven: Evaluation of the EUMETSAT OSISAF - ESA CCI sea-ice concentration data set, Poster at POLAR2018, Davos, Switzerland, June 19-23, 2018, A-938-0056-00939.

Kern, S., L. Bell, K. Khvorostovsky, S. Paul, H. Skourup, S. Hendricks, and S. Sandven: The ESA CCI radar altimeter sea-ice thickness data set: some evaluation results, Oral presentation at POLAR2018, Davos, Switzerland, June 19-23, 2018, A-938-0056-00968.

Li, H., H. Xie, S. Kern, W. Wan, B. Ozsoy, S. F. Ackley, and Y. Hong: Spatio-Temporal Variability of Antarctic Sea-Ice Thickness and Volume Obtained from ICESat Data Using an Innovative Algorithm, Oral presentation at 2018 Fall Meeting, AGU, Washington, D.C., 10-14 Dec., 2018, C32C-07.

Li, H., H. Xie, Y. Hong, W. Wan, S. Zhu, W. Shi, Y. Fang, S. Kern, S. F. Ackley, and Burcu Ozsoy: Spatial variabilities and Trend Analysis of the Antarctic Sea Ice with ICESat, Oral presentation at POLAR2019, Davos, Switzerland, June 19-23, 2018, A-938-0056-00945.

Ozsoy, B., S. Kern, and R. Saldo: About a way to improve snow-depth retrieval for Antarctic sea ice, Poster at POLAR2018, Davos, Switzerland, June 19-23, 2018.

Sadikni, R., A. Jahnke-Bornemann, S. Kern, F. Ament, and D. Stammer: The Integrated Climate Data Center at CEN, University of Hamburg, Poster at 3C Science Conference, Berlin, Germany, October 22-23, 2018.

2017:

Hendricks, S., E. Rinne, S. Paul, R. Ricker, H. Skourup, S. Kern, and S. Sandven: Towards Climate Data Records of Arctic and Antarctic sea ice thickness from CryoSat-2 and Envisat radar altimetry, Oral presentation, CryoSat North American Science Conference, Banff, Canada, 20-24 March 2017.

Hendricks, S., E. Rinne, S. Paul, R. Ricker, H. Skourup, S. Kern and S. Sandven: Arctic and Antarctic sea-ice thickness from CryoSat and Envisat radar altimetry, Oral presentation, AGU Fall Meeting, New Orleans, U.S., 11-15 Dec. 2017.

Kern, S., F. Ament, A. Beitsch, V. Gouretski, G. Heygster, N. Ivanova, A. Jahnke-Bornemann, L. Kaleschke, T. Lavergne, L. T. Pedersen, R. Sadikni, R. Saldo, S. Sandven, D. Stammer, X. Tian-Kunze, G. Timms, and R. T. Tonboe: ICDC / ESA-CCI & CCI+, Oral presentation, 6th SOOS-SSC Meeting, Bremerhaven, Germany, June 10-12 2017.

Kern, S., and B. Özsoy-Cicek, Remote Sensing, in H. Gümrükcü, G. Ersoy, A. I. Simsek, and F. C. Yasar Dincer (eds): Kutup Cagi-3 – Tarihi ve Hukuki Perspektif - Ekolojik Dönüsüm à The Polar age from a global perspective-3 – Historical and legal perspective - Ecological Transformation. © Siyasal Kitabevi Tüm Haklari Saklidir, Ankara, Akdeniz Üniversity, 175-206, 2017.

2016:

Frost, T., S. Kern, and G. Heygster, Snow depth on sea ice in the Antarctic: Error propagation and comparison with reference data sets, Poster presentation, ESA Living Planet Symposium, Paper no: 698, CRYO-171, Prague, Czech Republic, May 9-13, 2016.

Frost, T., S. Kern, and G. Heygster, Snow depth on Antarctic sea ice: Error propagation and comparison with reference data sets, Oral presentation, SCAR Open Science Conference, Kuala Lumpur, Malaysia, Aug. 22-26, 2016.

Hendricks, S., E. Rinne, S. Paul, R. Ricker, H. Skourup, S. Kern, and S. Sandven, Towards decadal time series of Arctic and Antarctic sea ice thickness from radar altimetry, AGU Fall Meeting, Dec. 12-16 2016, San Francisco, CA, U.S.A.

Hendricks, S., S. Schwegmann, E. Rinne, R. Ricker, M. Nicolaus, and S. Kern, Towards Antarctic sea-ice thickness time series with radar altimetry, Poster presentation, ESA Living Planet Symposium, Paper no: 1459, CRYO-225, Prague, Czech Republic, May 9-13, 2016.

Kern, S., L. Bell, N. Ivanova, A. Beitsch, L. T. Pedersen, R. Saldo, and S. Sandven, Evaluation of the ESA Sea Ice CCI (SICCI) project sea ice concentration data set, Poster presentation, ESA Living Planet Symposium, Paper no: 1648, CRYO-196, Prague, Czech Republic, May 9-13, 2016.

Kern, S., E. Rinne, S. Schwegmann, B. Ozsoy-Cicek, A. P. Worby, and S. Sandven, Inter-comparison of Antarctic sea ice thickness from satellite altimetry, Poster presentation, ESA Living Planet Symposium, Paper no: 1630, CRYO-209, Prague, Czech Republic, May 9-13, 2016.

Kern, S., ANT D1.9 Data set and Documentation, ESA-CCI Sea Ice ECV Project Report, SICCI-Ant-SITDD-06-15, v2.0, June 2016, 19pp.

Lavergne, T., S. Kern, and S. Hendricks, Product Specification Document (PSD), ESA-CCI Sea Ice ECV Project Report, D1.2, SICCI-P2-PSD-08-15, Issue 2.1, 19. February 2016, 35pp.

Lavergne, T., G. Dybkjær, F. Girard-Ardhuin, T. Hollands, J. Karvonen, S. Kern, S. Linow, S. Muckenhuber, L. T. Pedersen, and R. Saldo, Seeking an optimal algorithm for a new satellite-based Sea Ice Drift Climate Data Record: Motivations, plans and initial results from the ESA CCI Sea Ice project, Poster presentation, ESA Living Planet Symposium, Paper no: 1468, CRYO-186, Prague, Czech Republic, May 9-13, 2016.

Ozsoy-Cicek, B., Ö. Oktar, and S. Kern, Snow depth on Antarctic sea ice: Advancing its satellite remote sensing, Poster presentation, SCAR Open Science Conference, Paper no: 764, Kuala Lumpur, Malaysia, Aug. 22-26, 2016.

Rinne, E., S. Hendricks, R. Ricker, M. Nicolaus, S. Kern, H. Sallila, K. Khvorostovsky, and S. Sandven, The ESA Climate Change Initiative Sea Ice Thickness Products From Satellite Radar Altimetry, Poster presentation, ESA Living Planet Symposium, Paper no: 930, CRYO-181, Prague, Czech Republic, May 9-13, 2016.

Skourup, H., E. Rinne, S. Hendricks, F. Girard-Ardhuin, L. Kaleschke, S. Kern, K. Khvorostovsky, M. Nicolaus, R. Ricker, H. Sallila, S. Sandven, S. Schwegmann, and R. T. Tonboe, ESA CCI Sea ice thickness extended round robin data package, phase 2, Oral presentation, ESA Living Planet Symposium, Paper no: 1362, Sea Ice 3, 15:40, Prague, Czech Republic, May 9-13, 2016.

Tonboe, R. T., M. Mäkynen, L. T. Pedersen, G. Dybkjær, S. Kern, T. Lavergne, N. Ivanova, G. Heygster, M. Huntemann, J. Høyer, and M. Similä, Simulated geophysical noise in microwave radiometer ice concentration estimates over open water and snow covered sea ice,  Oral presentation, ESA Living Planet Symposium, Paper no: 572, Sea Ice 3, 16:40, Prague, Czech Republic, May 9-13, 2016.

Tonboe, R.T., M. Mäkynen, L. T. Pedersen, G. Dybkjær, S. Kern, T. Lavergne, N. Ivanova, G. Heygster, and R. Saldo, A reference dataset to evaluate sea ice concentration algorithms, Poster presentation, ESA Living Planet Symposium, Paper no: 579, CRYO-180, Prague, Czech Republic, May 9-13, 2016.

Tonboe, R. T., L. T. Pedersen, G. Dybkjær, J. Høyer, M. Mäkynen, S. Kern, T. Lavergne, N. Ivanova, G. Heygster, and R. Saldo, A reference data set to evaluate sea ice concentration algorithms, Oral presentation, MicroRad2016, Espoo, Finland, April 11-14, 2016.

2015:

Ivanova, N., L. T. Pedersen, T. Lavergne, R. T. Tonboe, R. Saldo, M. Mäkynen, G. Heygster, A. Rösel, S. Kern, G. Dybkjær, A. Sørensen, L. Brucker, M. Shokr, A. Korosov, and M. W. Hansen, Sea ice  concentration from satellite passive microwave algorithms: inter-comparison, validation and selection of an optimal algorithm, Oral presentation, Geophysical Research Abstracts, Vol. 17, EGU2015-11596, EGU General Assembly, Vienna, Austria, April 13-17, 2015.

Kern, S., T. Lavergne, H. Skourup, E. Rinne, and K. Khvorostovsky, Data Access Requirement Document (DARD), ESA-CCI Sea Ice ECV Project Phase 2 Report, SICCI-P2-DARD-08-15, issue 2.0, Sep. 18, 158pp., 2015.

Kern, S.: V. Gouretski, A. Jahnke-Bornemann, R. Sadikni, M. Meyer, A. Wünsche, F. Ament, and D. Stammer, Data and Services at the Integrated Climate Data Center (ICDC) at the University of Hamburg, Poster at the 10. Deutsche Klimatagung, September 21-24, 2015, Hamburg, Germany, 2015.

Kern, S., V. Gouretski, A. Jahnke-Bornemann, R. Sadikni, F. Ament, and D. Stammer, The Integrated Climate Data Center at the Center for Earth System Research and Sustainability (CEN), University of Hamburg, Poster at the Copernicus Workshop on Climate Observations Requirements, June 29 – July 2, ECMWF, Reading, U.K., 2015.

Kern, S., ANT D1.9 Data set and Documentation, ESA-CCI Sea Ice ECV Project Report, SICCI-Ant-SITDD-06-15, v1.0, issue 1.3, June 2015, 18pp.

Kern, S., Antarctic sea ice thickness retrieval and assessment, ANT D1.8, ESA-CCI Sea Ice ECV Project Report, SICCI-ANT-SITRA-06-15, v1.0, June 2015, 63pp.

Kern, S., and B. Ozsoy-Cicek, Sea Ice in the Arctic: Observations, Changes, and selected Implications, Oral presentation, KÜRESEL BAKIŞLA KUTUPLAR, HUKUKSAL ve SİYASAL BOYUTLARI: ARKTİKA ve ANTARKTİKA KITALARINDA GÜNCEL SORUNLAR VE ÇÖZÜM ÖNERİLERİ, May 10, Istanbul, Turkey, 2015.

Kern, S., and B. Özsoy-Cicek, Sea ice in the Arctic: Observations, Changes and selected implications, in H. Gümrükcü, N. S. Sanli, S. Demirkilinc, A. Inan, and T. Ilbuga (eds): Kutup Cagi – Catismalar, Isbirlikleri, Ulusak Cikarlar à The Polar age from a global perspective – Conflicts, Cooperations and National Interests. © Siyasal Kitabevi Tüm Haklari Saklidir, Ankara, Akdeniz Üniversity, 75-93, 2015.

Kern, S., A. Beitsch, V. Djepa, F. Girard-Ardhuin, G. Heygster, N. Ivanova, K. Khvorostovsky, T. Lavergne, M. Mäkynen, Z. S. Parsakhoo, L. T. Pedersen, E. Rinne, A. Rösel, R. Saldo, S. Sandven, D. Stammer, R. Tonboe, P. Wadhams, M. Zygmuntowska, ESA-CCI Sea Ice ECV Project - Present Status, Results, and Prospects, Oral presentation, ISSI Workshop on "Sea Level and associated climatic components at global and regional scales as inferred from the ESA Climate Change Initiative (CCI)", International Space Science Institute (ISSI), Bern, Switzerland, February 2-6, 2015.

Lavergne, T., and S. Kern, Product Specification Document (PSD), ESA-CCI Sea Ice ECV Project Phase 2 Report, SICCI-P2-PSD-08-15, Issue 2.0, Sep. 18, 31pp., 2015.

Sadikni, R., V. Gouretski, A. Jahnke-Bornemann, S. Kern, F. Ament, and D. Stammer, The Integrated Climate Data Center at the Center for Earth System Research and Sustainability (CEN), University of Hamburg, Presentation at PV 2015 Conference, Nov. 3-5, 2015, Darmstadt, Germany, 2015.

2014:

Beitsch, A., L. Kaleschke, and S. Kern, Sea Ice Concentration near 90 GHz, Oral presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, June 23-27, 2014.

Frost, T., G. Heygster, and S. Kern, ANT D1.1 Passive Microwave Snow Depth on Antarctic sea ice assessment, ESA-CCI Sea Ice ECV Project Report, SICCI-ANT-PMW-SDASS-11-14, v1.0, November 2014, 166pp.

Kern, S., T. Frost, and G. Heygster, ANT D1.3 Product User Guide (PUG) for Antarctic Snow Depth product SD v1.0, ESA-CCI Sea Ice ECV Project Report, SICCI-ANT-SD-PUG-14-08, v1.1, December 2014, 15pp.

Kern, S., F. Bunzel, J. Debernard, H. Heiberg, A. M. Kille, N. Koldunov, and T. Lavergne, D4.2 Climate Assessment Report (CAR), ESA-CCI Sea Ice ECV Project Report, SICCI-CAR, v1.0, November 2014, 107pp.

Kern, S., M. Zygmuntowska, K. Khvorostovsky, G. Spreen, N. Ivanova, and A. Beitsch, D4.1 Product Validation and Intercomparison Report, ESA-CCI Sea Ice ECV Project Report, SICCI-PVIR, v1.0, November 2014, 192pp.

Kern, S., ANT D1.6 ICESat ANT Freeboard, ESA-CCI Sea Ice ECV Project Report, SICCI-ICESatANT-14-03, v1.0, November 2014, 39pp.

Kern, S., ANT D1.2 ANT Snow Depth from alternative sources, ESA-CCI Sea Ice ECV Project Report, SICCI-ANT-SD-AS-14-04, v1.0, November 2014, 48pp.

Kern, S., V. Gouretski, A. Jahnke-Bornemann, R. Sadikni, F. Ament, and D. Stammer, The Integrated Climate Data Center at the Center for Earth System Research and Sustainability (CEN), University of Hamburg, Poster presentation, The Climate Symposium, Darmstadt, Germany, November 13-17, 2014, http://www.theclimatesymposium2014.com/S.m.17_Kern_ICDC.pdf

Kern, S., V. Djepa, F. Girard-Ardhuin, G. Heygster, N. Ivanova, K. Khvorostovsky, T. Lavergne, M. Mäkynen, L. T. Pedersen, E. Rinne, R. Saldo, S. Sandven, H. Skourup, R. Tonboe, P. Wadhams, and P. Lecomte, Sea ice as an essential climate variable: The Climate Change Initiative (CCI) sea ice project of the European Space Agency (ESA), Poster presentation, The Climate Symposium, Darmstadt, Germany, November 13-17, 2014, http://www.theclimatesymposium2014.com/S3.06_Kern_ESA-SICCI.pdf

Kern, S., A. Beitsch, L. Bell, L. Kaleschke, B. Ozsoy-Cicek, J. Röhrs, G. Spreen, M. Zygmuntowska, et al., Setting the Scene – Observations, Oral presentation, International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop, ZMAW, Hamburg, Germany, September 18-19, 2014.

Kern, S., A. Beitsch, L. Bell, N. Ivanova, F. Körting, L. T. Pedersen, and A. Rösel, Sea Ice Concentration Evaluation, Oral presentation, International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop, ZMAW, Hamburg, Germany, September 18-19, 2014.

Kern, S., A. Beitsch, T. Frost, N. Maaß, B. Ozsoy-Cicek, Z. S. Parsakhoo, and G. Spreen, About Snow on Sea Ice, Oral presentation, International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop, ZMAW, Hamburg, Germany, September 18-19, 2014.

Kern, S., and B. Ozsoy-Cicek, New insights into snow depth on Antarctic sea ice from satellite remote sensing, Oral presentation, SCAR Open Science Conference, Auckland, New Zealand, August 25-28, 2014, abstracts pp 913.

Kern, S., V. Gouretski, R. Sadikni, L. Kaleschke, A. Köhl, A. Jahnke-Bornemann, F. Ament, and D. Stammer, The Integrated Climate Data Center (ICDC) at the Center for Earth System Research and Sustainability (CEN), University of Hamburg, Oral presentation, SCAR Open Science Conference, Auckland, New Zealand, August 25-28, 2014, abstracts pp 887.

Kern, S., B. Ozsoy-Cicek, G. Spreen, and S. Biri, Antarctic sea ice: Freeboard, Thickness and their uncertainties derived from ICESat, Oral presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, June 23-27, 2014.

Kern, S., L. Bell, and E. Olason, About the NSIDC Sea Ice Motion Data Set v02, Oral presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, June 23-27, 2014.

Kern, S., T. Frost, B. Ozsoy-Cicek, and G. Spreen, Snow depth on Antarctic sea ice from AMSR-E and ICESat, Oral presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, June 23-27, 2014.

Kern, S., S. de la Rosa, C. Haas, B. Ozsoy-Cicek, G. Spreen, et al., Antarctic sea ice thickness: Advantages and Limitations of Remote Sensing, Presentation at TUBITAK Antarctic Science Program Workshop, Istanbul, Turkey, June 2-3, 2014.

Kern, S., A. Beitsch, D. Brüning, R. Ezraty, F. Girard-Ardhuin, G. Heygsterm N. Ivanova, L. Kaleschke, L. T. Pedersen, G. Spreen, et al., Remote Sensing of Antarctic Sea Ice Concentration and Drift, Presentation at TUBITAK Antarctic Science Program Workshop, Istanbul, Turkey, June 2-3, 2014.

Kern, S., V. Gouretski, A. Jahnke-Bornemann, R. Sadikni, D. Stammer, and F. Ament, Integrated Climate Data Center (ICDC) University of Hamburg: A good address for quality-controlled Earth observation data from remote sensing and in-situ measurements, Presentation at TUBITAK Antarctic Science Program Workshop, Istanbul, Turkey, June 2-3, 2014.

Kern, S., L. Bell, E. Olason, and D. Notz, Note about an evaluation of the NSIDC Sea Ice Drift product version 02, ICDC report, University of Hamburg, Hamburg, Germany, April 2014.

Kern, S., and G. Spreen, About Uncertainties in Antarctic Sea Ice Thickness retrieval from ICESat, Presentation at IGS Sea Ice Symposium IGS2014, Hobart, Australia, March 10-14, 2014.

Kern, S., B. Ozsoy-Cicek, T. Frost, M. Nicolaus, and G. Heygster, Snow Depth on Weddell Sea Ice from ICESat, Poster at IGS Sea Ice Symposium IGS2014, Hobart, Australia, March 10-14, 2014.

Ozsoy-Cicek, B., and S. Kern, Antarctic sea ice thickness from ICESat-1 using empirical approaches based on in-situ drillings, Poster presentation, International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop, Hamburg, Germany, September 18-19, 2014.

Ozsoy-Cicek, B., B. Öztürk, B. Meyer, M. Nicolaus, and S. Kern, Development of the Turkish Arctic and Antarctic Research Program (TuArk), Poster presentation, International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop, ZMAW, Hamburg, Germany, September 18-19, 2014.

Ozsoy-Cicek, B., and S. Kern, Weddell Sea Ice Thickness from ICESat using empirical approaches based on in-situ drillings, Poster at IGS Sea Ice Symposium IGS2014, Hobart, Australia, March 10-14, 2014.

Willmes, S., and S. Kern, An Introduction to Satellite Remote Sensing of Polar Regions, Presentation at TUBITAK Antarctic Science Program Workshop, Istanbul, Turkey, June 2-3, 2014.

2013:

Beitsch, A., S. Kern, and L. Kaleschke, Comparison of AMSR-E and SSM/I sea ice concentrations with ASPeCt ship observations around Antarctica, Presentation at Davos Atmosphere and Cryosphere Assembly (DACA), Davos, Switzerland, July 8-12, 2013.

Djepa, V., S. Kern, K. Khvorostovsky, M. Mäkynen, E. Rinne, H. Skourup, and P. Wadhams, D2.5 Product Validation and Algorithm Selection Report (PVASR) – Sea Ice Thickness, ESA-CCI Sea Ice ECV Project Report, SICCI-PVASR, v1.0, September 2013, 73pp.

Fernández-Prieto, D., A. Hogg, J. Bamber, J. Baeseman, M. Drinkwater, V. Ryabinin, K. Steffen, W. Dierking, C. Duguay, S. Gerland, K. Giles, C. Haas, B. Heim, S. Howell, I. Joughin, L. Kaleschke, S. Kern, S. Laxon, G. Macelloni, T. Painter, F. Paul, A. J. Payne, L. Toudal Pedersen, J. Pulliainen, W. Rack, E. Rignot, H. Rott, T. Scambos, E. Schrama, A. Shepherd, T. Strozzi, M. R. van den Broeke, I. Velicogna, and J. Zwally. Earth observations and cryosphere science: The way forward, Proc. ‘Earth Observation and Cryosphere Science Conference’, ESA-ESRIN, Frascati, Italy, November 13-16, 2012, ESA SP-712, May 2013.

Kern, S., A. Beitsch, B. Burns, T. Markus, and S. de la Rosa, Remote Sensing of Polynyas, Presentation at the Seminar of the Meteorological Institute, University of Hamburg, Hamburg, Germany, November 6, 2013.

Kern, S., R. Sadikni, L. Kaleschke, A. Rösel, V. Gouretski, A. Jahnke-Bornemann, and S. Stammer. The Integrated Climate Data Centre (ICDC) and its current and future services related to sea ice data, Poster at ESA Living Planet Symposium, Edinburgh, U.K., September 9-13, 2013.

Kern, S., V. Djepa, K. Khvorostovsky, M. Mäkynen, Z. S. Parsakhoo, E. Rinne, S. Sandven, H. Skourup, G. Timms, and P. Wadhams. ESA-CCI Sea Ice ECV Project: Sea Ice Thickness Round Robin Exercise results, Presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, July 21-26, 2013.

Kern, S., et al., Status of Sea Ice Thickness Retrieval, Presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern, Switzerland, July 21-26, 2013.

Kern, S., et al., About some Aspects of Satellite Altimetry Sea Ice Thickness Retrieval Uncertainty, Presentation at ISSI Meeting (Heil and Kern): Towards and integrated retrieval of Antarctic sea ice volume, International Space Science Institute (ISSI), Bern Switzerland, July 21-26, 2013.

Kern, S., S. F. Ackley, W. Dierking, S. L. Farrell, C. Geiger, P. Heil, T. Hollands, J. Karvonen, R. Kwok, T. Lavergne, S. Lienow, R. Massom, M. Mäkynen, W. Meier, B. Ozsoy-Cicek, L. T. Pedersen, S. Sandven, V. Smolyanitsky, G. Spreen, R. Tonboe, M. Tschudi, and P. Wadhams. About assessing Uncertainties in Sea Ice Products from Satellite Remote Sensing, Presentation at Davos Atmosphere and Cryosphere Assembly (DACA), Davos, Switzerland, July 8-12, 2013.

Mäkynen, M., S. Kern, and L. T. Pedersen. On estimation of melt pond fraction on Arctic sea ice with Envisat WSM images, Presentation at Specialist Symposium on Microwave Remote Sensing of the Earth, Oceans, and Atmosphere, October 28-31, 2013, Espoo (Helsinki), Finland, in URSI Commission F Microwave Signatures, Praks, J., M. Hallikainen, J. Kainulainen, M. Vaaja, and J. Seppänen (eds.), Report, Department of Radio Science and Engineering, Aalto University, 103, pp 146, 2013.

Pedersen, L. T., N. Ivanova, R. Saldo, G. Heygster, R. Tonboe, T. Lavergne, M. Mäkynen, and S. Kern. Sea Ice concentration as an essential climate variable, Presentation at ESA Living Planet Symposium, Edinburgh, U.K., September 9-13, 2013.

Sandven, S., G. Timms, E. Pechorro, T. Lavergne, L. T. Pedersen, R. Tonboe, N. Ivanova, R Saldo, H. Skourup, M. Mäkynen, E. Rinne, S. Kern, G. Heygster, P. Wadhams, J. Fletcher, V. Djepa, D. Notz, and F. Girard-Ardhuin. Essential Climate Variables for Sea Ice observed from Satellites, Poster at Davos Atmosphere and Cryosphere Assembly (DACA), Davos, Switzerland, July 8-12, 2013.

Sandven, S., G. Timms, V. Djepa, P. Wadhams, K. Khvorostovsky, H. Skourup, M. Mäkynen, E. Rinne, Z. S. Parsakhoo, and S. Kern. Preliminary Results of the Round Robin Exercise for Sea Ice Thickness Retrieval in ESA CCI Sea Ice ECV Project, Poster at Davos Atmosphere and Cryosphere Assembly (DACA), Davos, Switzerland, July 8-12, 2013.

2012:

Aulicino, G., G. Fusco, S. Kern, and G. Budillon. Estimation of sea-ice thickness in Ross and Weddell Seas from SSM/I brightness temperatures, IPY 2012, Montreal, Canada, April 22-27, 2012.

Beitsch, A., S. Kern, and L. Kaleschke, Comparison of AMSR-E sea ice concentrations with ASPeCt ship observations around Antarctica, IGARSS 2012, Munich, Germany, July 23-27, 2012.

Heil, P., S. Kern, A. Beitsch, G. Spreen, S. Laxon, et al., Towards and integrated retrieval of Antarctic sea ice volume, Presentation at ISSI Meeting (P. Heil): Space-borne monitoring of Antarctic sea ice, International Space Science Institute (ISSI), Bern, Switzerland, May 29-June 1, 2012.

Hilden, M., H.-M. Füssel, S. Fronzek, E. Kuusisto, J. Ridley, R. Valentini, G. Coppini, T. Lavergne, M. A. Killie, L.-A. Breivik, and S. Kern, Climate change, impacts and vulnerability in Europe 2012, chapter 2.3: Cryosphere, EEA-Report, No. 12, 2012, Copenhagen, Denmark, 304pp.

Kern, S., Data Access Requirement Document (DARD), ESA-CCI Sea Ice ECV Project Report, SICCI-DARD-04-12, v1.1, August 2012, 134pp.

Kern, S., Product Specification Document (PSD), ESA-CCI Sea Ice ECV Project Report, SICCI-PSD-02-12, v1.1, August 2012, 34pp.

Kern, S., et al., ESA-CCI Sea Ice ECV and ICDC at CliSAP, Presentation at ISSI Meeting (P. Heil): Space-borne monitoring of Antarctic sea ice, International Space Science Institute (ISSI), Bern, Switzerland, May 29-June 1, 2012.

Kern, S., G. Spreen, M. Pokorna, L. Kaleschke, B. Ozsoy-Cicek, et al., ICESat based freeboard and sea ice thickness retrieval studies, Presentation at ISSI Meeting (P. Heil): Space-borne monitoring of Antarctic sea ice, International Space Science Institute (ISSI), Bern, Switzerland, May 29-June 1, 2012.

Kern, S., et al., ESA-CCI Sea Ice ECV, Presentation at ESA SMOSIce Workshop, ZMAW, Hamburg, Germany, February 17, 2012.

Ozsoy-Cicek, B., S. F. Ackley, H. Xie, D. Yi, J. Zwally, C. Geiger, S. Kern, et al., Freeboard-to-thickness conversion for Antarctic sea ice: Recent insights from in-situ observations, Presentation at ISSI Meeting (P. Heil): Space-borne monitoring of Antarctic sea ice, International Space Science Institute (ISSI), Bern, Switzerland, May 29-June 1, 2012.

Rösel, A., L. Kaleschke, and S. Kern, Influence of melt ponds on microwave sensor's sea ice concentration retrieval algorithms, IGARSS 2012, Munich, Germany, July 23-27, 2012.

2011:

Brath, M., S. Kern, and D. Stammer, Ice thickness estimation of thin ice using active microwave sensor data obtained at different frequencies, AGU-Fall Meeting, San Francisco, CA, U.S.A., December 5-9, 2011.

Kern, S., et al., Meereis oder weniger Eis, Presentation at the “Night of Sciences” of the University of Hamburg, October 29, 2011.

Kern, S., L. Kalschke, G. Spreen, and S. Willmes, NASA-NT2, ARTIST Sea Ice, and OSISAF sea ice concentrations in comparison, Satellite-derived Sea Ice Products Community Workshop, NASA-GSFC, Washington DC, U.S.A., March 15-16, 2011.

2010:

Brath, M., S. Kern, and D. Stammer, Helicopter-based radar-cross-section measurements of thin sea ice at different frequencies, International Symposium on Sea Ice in the Physical and Bio-geochemical System IGS2010, Tromso, Norway, May 31-June 4, 2010.

de la Rosa, S., S. Maus, and S. Kern, Thermodynamical investigation of an evolving grease to pancake ice field", International Symposium on Sea Ice in the Physical and Bio-geochemical System IGS2010, Tromso, Norway, May 31-June 4, 2010.

Kern, S., Microwave remote sensing of sea ice, Lecture held at University of Texas San Antonio (UTSA), San Antonio TX, USA, October 25, 2010.

Kern, S., B. Ozsoy-Cicek, S. Willmes, S. F. Ackley, and D. Stammer, Dual frequency satellite radar observations of sea ice in the Bellingshausen Sea, Antarctica: Lessons learned from SIMBA 2007, 11th International Ice Charting Working Group (IICWG) Meeting, Washington DC, U.S.A., October 18-22, 2010.  

Kern, S., M. Brath, and D. Stammer, Melt ponds as observed with a helicopter-borne, multi-frequency scatterometer in the Arctic ocean in 2007, ESA Living Planet Symposium, Bergen, Norway, June 29-July 2, 2010, ESA-SP-686.

Kern, S., B. Ozsoy-Cicek, S. Willmes, S. F. Ackley, C. Haas, M. Nicolaus, A. E. Tekeli, and H. Xie, Snow depth on sea ice and sea ice types from visual ship-based observations, in comparison to satellite-based estimates of the snow depth and to satellite C- and Ku-Band radar backscatter data, Combined Workshop about: Monitoring of Antarctic Sea Ice during IPY,  and Space-borne monitoring of polar sea ice, International Space Science Institute (ISSI), Bern, Switzerland, June 7-11, 2010.

Kern, S., and S. Aliani, A comparison between polynya area and associated ice production and mooring-based measurements of temperature, salinity, and currents in the southwestern Ross Sea, Antarctica, International Symposium on Sea Ice in the Physical and Bio-geochemical System IGS2010, Tromso, Norway, May 31-June 4, 2010.

Kern, S., B. Ozsoy-Cicek, S. Willmes, C. Haas, M. Nicolaus, and S. F. Ackley, An intercomparison between AMSR-E snow depth and satellite C- and Ku-Band radar backscatter data for Antarctic sea ice, International Symposium on Sea Ice in the Physical and Bio-geochemical System IGS2010, Tromso, Norway, May 31-June 4, 2010.

Kern, S., L. Kaleschke, N. Maaß, M. Pokorna, M. Brath, G. Spreen, and D. Stammer, Sea Ice Remote Sensing at IfM-Hamburg: Some aspects about snow depth on sea ice and sea ice thickness retrieval, 2nd IPY Antarctic Sea Ice Workshop, Tromso, Norway, May 30, 2007.

Kern, S., et al., About sea ice radar backscatter estimation and interpretation, Workshop about: Monitoring Arctic and Antarctic Sea Ice from Various Satellite Products, International Space Science Institute (ISSI), Bern, Switzerland, March 15-19, 2010.

Kern, S.: Remote Sensing of Polynyas, Workshop about: Monitoring Arctic and Antarctic Sea Ice from Various Satellite Products, International Space Science Institute (ISSI), Bern, Switzerland, March 15-19, 2010.

Kern, S., S. Schulz, G. Bippus, M. Brath, M. Fischer, R. Fontes, M. Heidinger, F. Müller, T. Nagler, H. Rott, and D. Stammer, Interpretation of Multi³Scat radar backscatter data obtained at C-, X-, and Ku-Band during winter 2007/2008 near Innsbruck, ESA Cold Regions Hydrology Workshop, Innsbruck, Austria, April 28-30, 2010, Abstract Book, p. 65.

Kramer, M., R. Kiko, S. Kern, and H. Mütze, Colonization of newly forming sea ice, Ocean Sciences Meeting, Portland, Oregon, U.S.A., February 22-26, 2010.

Maaß, N., L. Kaleschke, and S. Kern, First preliminary results of sea ice thickness retrieval using SMOS data, Poster at the ESA Living Planet Symposium, Bergen, Norway, June 29-July 2, 2010.

Maaß, N., L. Kaleschke, and S. Kern, Remote Sensing of sea ice thickness using SMOS and CryoSat2 data, IMPRS-Evaluation, Hamburg, Germany, April 26-27, 2010. 

Maaß, N., L. Kaleschke, and S. Kern, A few aspects about sea-ice thickness retrieval using SMOS data, Combined Workshop about: Monitoring of Antarctic Sea Ice during IPY, and Space-borne monitoring of polar sea ice, International Space Science Institute (ISSI), Bern, Switzerland, June 7-11, 2010.

Pokorna, M., S. Kern, G. Spreen, L. Kaleschke, and D. Stammer, A few aspects about ICESat data based ice-thickness estimation, Combined Workshop about: Monitoring of Antarctic Sea Ice during IPY, and Space-borne monitoring of polar sea ice, International Space Science Institute (ISSI), Bern, Switzerland, June 7-11, 2010.

Spreen, G., S. Kern, and D. Stammer, Fram Strait sea ice volume export estimated between 2003 and 2008 from satellite data, State of the Arctic Conference, Miami, Florida, U.S.A., March 16-19, 2010.

Tekeli, A. E., S. F. Ackley, B. Ozsoy-Cicek, S. Kern, and H. Xie, ASAR Microwave observations of sea ice in Bellingshausen, Amundsen, and Ross Seas, IPY-Conference, Oslo, Norway, June 7-11, 2010.

Tekeli, A. E., S. Kern, S. F. Ackley, B. Ozsoy-Cicek, and H. Xie, Monitoring Antarctic sea ice by ASAR and validating with cruise field data, International Symposium on Sea Ice in the Physical and Bio-geochemical System IGS2010, Tromso, Norway, May 31-June 4, 2010.

2009:

Kern, S., L. Kaleschke, and G. Spreen, Analyse der Meereisbedeckung des Europäischen Nordmeeres auf Basis von satellitengestützten Mikrowellenradiometermessungen bei 85 GHz für 1992-2008, Symposium Klimasystem Nordatlantik, Hamburg, Germany, November 5-6, 2009.

Kern, S., L. Kaleschke, and G. Spreen, Analyses of Arctic sea-ice concentrations calculated from satellite radiometer data at 85 GHz for 1992-2008, IAMAS-IAPSO-IACS Joint Assembly (MOCA-09), Montreal, Canada, July 19-29, 2009.

Kern, S., About the total wintertime circum-Antarctic coastal polynya area: 1992-2008, IAMAS-IAPSO-IACS Joint Assembly (MOCA-09), Montreal, Canada, July 19-29, 2009.

De la Rosa, S., S. Kern, R. Wang, H. H. Shen, L. H. Smedsrud, and J. Wilkinson: Experiments on Frazil, Grease and Pancake Ice Growth, Arctic Science Summit Week (ASSW), Bergen, Norway, March 23-28, 2009.

Kern, S., S. de la Rosa, L. Kaleschke, G. Spreen, and D. Stammer, Fernerkundung von Küstenpolynjen der Antarktis, DPG-Frühjahrstagung, Hamburg, 2.-6. März, 2009, UP 6.2, S. 191.

Kern, S., S. Schulz, G. Bippus, M. Brath, M. Heidinger, F. Müller, T. Nagler, H. Rebhan, H. Rott, and D. Stammer, Interpretation von Radarrückstreumessungen über Schnee mit dem Multi³Scat, DPG-Frühjahrstagung, Hamburg, 2.-6. März, 2009, UP 6.3, S. 191.

Ozsoy-Cicek, B., S. Kern, S. F. Ackley, H. Xie, and A. E. Tekeli, Antarctic sea ice properties derived from ship observations, active and passive sensors, ASPRS - MAPPS, San Antonio, TX, November 16-19, 2009.

Pokorna, M., G. Spreen, S. Kern, L. Kaleschke, and D. Stammer, Sea Ice Freeboard Estimates in the Weddell Sea from ICESat Laser Altimetry, DPG-Frühjahrstagung, Hamburg, 2.-6. März, 2009, UP 6.4, S. 191.

Spreen, G., S. Kern, D. Stammer, and L. Kaleschke, Fernerkundung des Meereisvolumentransports durch die Framstrasse für die Jahre 2003 bis 2008, DPG-Frühjahrstagung, Hamburg, 2.-6. März, 2009, UP 10.11, S. 195.

Tekeli, A. E., H. Xie, B. Ozsoy-Cicek, S. F. Ackley, S. Kern, Monitoring sea ice by Envisat ASAR and  validating with the Palmer 2009 Cruise field data for Antarctica, ASPRS - MAPPS, San Antonio, TX, November 16-19, 2009. 

2008:

Alexeeva, T., A. Timofeeva, S. Kern, S. Frolov, L. Kaleschke, and G. Spreen, NASA-TEAM and ARTIST sea ice concentrations: comparisons with Russian ship-borne observations of 15 cruises, SCAR/IASC IPY Open Science Conference, St.Petersburg, Russia, July 8-11, 2008, page 390.

Hendricks, S., S. Kern, V. Leinweber, L. Rabenstein, G. Spreen, and A. Winderlich, Sea Ice Properties during ARK-XXII/2, ch. 3, p. 14-64, in The expedition ARKTIS-XXII/2 of the research vessel "Polarstern" in 2007, U. Schauer (ed.), Reports on polar and marine research, 579, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, 271pp., 2008.

Rott, H., T. Nagler, S. Kern, D. Stammer, H. Rebhan, and J. Shi, Studies of multi-frequency polarimetric backscatter characteristics of snow cover and glacier measured in the HELISNOW-2008 campaign,  IEEE International Geoscience and Remote Sensing Symposium (IGARSS'08), Boston, USA, July 6-11, 2008, Abstract No.: 1740.

Spreen, G., S. Kern, and D. Stammer, Satellite Remote Sensing of Fram Strait Sea Ice Volume Flux for Years 2003 to 2008, AGU Fall Meeting, San Francisco, USA, 15-19 December 2008.

Spreen, G., S. Kern, and D. Stammer, Sea ice volume flux through Fram Strait from combined satellite remote sensing data for 2003 to 2007, IEEE International Geoscience and Remote Sensing Symposium (IGARSS'08), Boston, USA, July 6-11, 2008.

2007:

de la Rosa, S., and S. Kern, Estimation of polynya area nd thin ice thickness using satellite microwave radiometry in the Ross Sea, Antarctica. - EGU General Assembly, Vienna, Austria, April 15-20, 2007. 

de la Rosa, S., S. Kern, and D. Stammer, Estimating Surface Heat Fluxes over Antarctic Polynyas using Satellite Remote Sensing Data, DACH - Meteorologentagung, Hamburg, Germany, September 10-14, 2007. 

Kern, S., D. Flocco, S. de la Rosa, G. Spreen, and D. Stammer, Satellite Observations and Numerical Modelling of Coastal Polynyas in the Ross Sea and off Adelie Land, Antarctica, DACH - Meteorologentagung, Hamburg, Germany, September 10-14, 2007. 

Pokorna, M., G. Spreen, L. Kaleschke, S. Kern, and D. Stammer, Analysis of Sea Ice Freeboard and Sea Ice Snow Depth in the Weddell Sea by means of Satellite Passive Microwave Measurements and Laser Altimetry, DACH - Meteorologentagung, Hamburg, Germany, September 10-14, 2007.

Spreen, G., S. Kern, D. Stammer, and L. Kaleschke, Satellite remote sensing of sea ice volume (freshwater) flux through Fram Strait and in the Greenland Sea: 2003-2006, CLIVAR: North Atlantic Subpolar Gyre Workshop, Kiel, Germany, March 19-21, 2007.

2006:

Kern, S., G. Spreen, L. Kaleschke, N. Wilkens, C. Haas, R. Ezraty, and F. Ardhuin, Fernerkundung und Validation von Meereisparametern, Vortrag beim Deutschen Wetterdienst, Climate-Monitoring Satellite Application Facility (CM-SAF), Offenbach, October 19, 2006.

Kern, S., G. Spreen, and L. Kaleschke, Error sources and error propagation in passive microwave sea ice retrieval, 7th International Ice Charting Working Group Meeting, Helsinki, Finland, September 25-29, 2006.

Kern, S., L. Kaleschke, G. Spreen, S. de la Rosa Höhn, G. Heygster, and D. Stammer, About sub-daily Polynya Signature Simulation Method (PSSM) polynya area estimates and their combination with AMSR-E ice concentrations and AVHRR ice thickness, International Glaciological Society (IGS): International Symposium on Cryospheric Indicators of Global Climate Change, Cambridge, England, August 21-25, 2006.

Kern, S., M. Gade, D. Stammer, and R. Tonboe, Remote Sensing of thin ice with space- and helicopter-borne multi-frequency radar during IPY, International Workshop on Antarctic Sea Ice Thickness, Hobart, Australia, July 5-7, 2006.

Kern, S., L. Kaleschke, G. Spreen, S. de la Rosa Höhn, G. Heygster, and D. Stammer, Combining sub-daily polynya signature simulation method (PSSM) polynya area estimates with AMSR-E sea ice concentrations and ice thickness derived from AVHRR data, International Workshop on Antarctic Sea Ice Thickness, Hobart, Australia, July 5-7, 2006.

Kern, S., et al., Fernerkundung von Meereis, Presentation aboard Research Vessel Maria S. Merian, February 9, 2006.

Spreen, G., S. Kern, and D. Stammer, New satellite multi-sensor approach to estimate sea ice volume flux, International Glaciological Society (IGS): International Symposium on Cryospheric Indicators of Global Climate Change, Cambridge, England, August 21-25, 2006.

2005:

Kaleschke, L., A. Richter, J. Burrows, G. Heygster, J. Notholt, H.-W- Jacobi, R. Weller, S. Kern, R. Sander, J. Hollwedel, and R. von Glasow, Frost Flowers on Sea Ice - a multi-disciplinary Research Effort for the upcoming International Polar Year 2007/09, Proceedings of the Arctic Climate Workshop (ACW), Potsdam, Germany, September 5-7, 2005.

Kern, S., Y. Chen, D. Stammer, and G. Spreen, The sea-ice compactness in the northern North-Atlantic during 1979-2003: Changes and links to the surface air flow, International Glaciology Society (IGS) Int. Symp. on Sea ice, Dunedin, New Zealand, December 5-9, 2005.

Kern, S., M. Gade, C. Haas, and A. Pfaffling, Retrieval of thin-ice thickness using the L-band polarization ratio measured by the helicopter-borne scatterometer HELISCAT, International Glaciology Society (IGS) Int. Symp. on Sea ice, Dunedin, New Zealand, December 5-9, 2005.

Kern, S., M. Gade, C. Haas, D. Stammer, and G. Spreen, Scatterometer Measurements of Thin Sea Ice Radar Backscatter, Workshop about Antarctic Sea Ice in IPY, Dunedin, New Zealand, December 4, 2005.

Kern, S., I. Harms, and D Stammer, Polynya Extent and Sea-Ice Compactness in the Kara Sea obtained from Microwave Radiometry, 5th Baltic Sea Ice Climate Workshop, Center for Marine and Atmopsheric Research, Hamburg, Germany, August 31 - September 2, 2005.

Kern, S., I. Harms, and S. Bakan, The Kara Sea in a changing Arctic: 10 Years of Polynya Observations using High-Resolution Microwave Radiometry, CliC First Science Conference, China Meteorological Administration, Bejing, China, April 11-15, 2005.

Spreen, G., S. Kern, and D. Stammer, Sea-Ice Volume FLux into the Greenland Sea from Space-borne Remote Sensing, Int. Workshop on Arctic Sea Ice Thickness: Past and Present, Copenhagen, Denmark, November 8-9, 2005.

Spreen, G., S. Kern, D. Stammer, and R. Forsberg, About a technique to estimate the sea ice volume flux into the Greenland Sea by use of spaceborne remote sensing, International Glaciology Society (IGS) Int. Symp. on Sea ice, Dunedin, New Zealand, December 5-9, 2005.

Spreen, G., S. Kern, R. Ezraty, H. Witte, and S. Stammer, Toward Remote Sensing of the Net Sea Ice Volume Flux in the Greenland Sea, First International CRYOSAT Workshop, ESA ESRIN, Frascati, Italy, March 8-10, 2005.

2004:

Kern, S., et al., Remote Sensing of Sea Ice, POMOR student exchange program lectures, December 14-17, 2004, St. Petersburg, Russia.

Kern, S., and I. Harms, Polynya Variability in Arctic Shelf Areas as Inferred from Passive Microwave Imagery and Numerical Modeling, The ACIA International Scientific Symposium on Climate Change in the Arctic, Extent Abstracts, Reykjavik, Iceland, November 9-12, 2004, AMAP Report 2004:4,Oral Session 5, Paper 6.

Kern, S., Analysis of remotely sensed Antarctic sea-ice cover of 1991-2002: total and regional area and extent, and contribution of different ice-concentration classes, Proceedings of the 28th SCAR Open Science Conference "Antarctic and the Southern Ocean in the Global System", Bremen, Germany, July 26 - 28, 2004, in: Terra Nostra, 2004/4, Alfred-Wegener Stiftung, Berlin, Germany, p385.

Kern, S., Sub-daily flaw-polynya dynamics in the Kara Sea inferred from spaceborne microwave radiometry, Proceedings of the 17th International Symposium on Ice (IAHR'04), St. Petersburg, Russia, June 21 - 25, 2004, vol. 1, 345-352.

Kern, S., and M. Gade, Helicopterborne multi-frequency, multi-polarization scatterometer measurements during ARK XIX/1, Proceedings of the 17th International Symposium on Ice (IAHR'04), St. Petersburg, Russia, June 21 - 25, 2004, vol. 1, 441-448.

Nittis, K., B. Furevik, S. Kern, L. Perivoliotis, D. Poulter, R. Romeiser, S. Ufermann, and J. Johannessen, Synergy of SAR data, in-situ buoy observations and numerical models in the North Aegean Sea frontal area, Geophys. Res. Abstracts, Vol. 6, 07428, Proceedings of the Symposium of the European Geosciences Union (EGU'04), Nice, France, April 25 - 30, 2004.

Kern, S., Helicopter Scatterometer Measurements, in: The Expedition ARKTIS XIX/1 a, b and XIX/2 of the Research Vessel "Polarstern" in 2003, Schauer, U., and G. Kattner, eds., Reports on Polar and Marine Research, 481, 22-26.

2003:

Kern, S., G. Heygster, and S. Andersen, Summer Greenland Sea sea ice analysis using Advanced Microwave Scanning Radiometer data, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'03), Toulouse, France, July 21 - 25, 2003.

Kern, S., M. Gade, and C. Haas, Helicopterborne multi-frequency, multi-polarization scatterometer measurements during the winter ARctic Polynya Study (WARPS): First Results, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'03), Toulouse, France, July 21 - 25, 2003.

Johannessen, J., T. Hamre, R. Garello, R. Romseiser, S. Kern, B. Chapron, I. Robinson, S. Ufermann, V. Cummins, N. Connolly, K. Nittis, L. Perivoliotis, and D. Tarchi, Marine SAR Analyses and Interpretation System - MARSAIS, Proceedings of the Third Intenational Conference on EuroGOOS,3 - 6 December, Athens, Greece, in Building the European capacity in operational oceanography,edited by H. Dahlin, N.C. Flemming, K. Nittis, and S.E. Petersson, ELSEVIER Oceanography Series, 69, Elsevier, Amsterdam, 135-140.

2002:

Kern, S., and L. Kaleschke, Two ice concentration algorithms benefitting from 85 GHz Special Sensor Microwave/Imager data: A comparison, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'02), Toronto, Canada, June 24 - 28, 2002.

Kern, S., and I. Harms, Spatial resolution improvement of sea ice maps prescribed to Regional Arctic Shelf Ocean Models by using Special Sensor Microwave/Imager 85 GHz data, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'02), Toronto, Canada, June 24 - 28, 2002.

Romeiser, R., S. Ufermann, A. Rubino, A. Androssov, S. Kern, and L. Mitnik, Interpretation of Convection Cell Signatures in Radar images of the Greenland Sea, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'02), Toronto, Canada, June 24 - 28, 2002.

Kaleschke, L., and S. Kern, ERS-2 SAR Image Analysis for sea ice classification in the marginal ice zone, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'02), Toronto, Canada, June 24 - 28, 2002.

Budillon, G., D. Flocco, S. Kern, and F. Napoli, Observations on the opening and closure of the Ross Sea polynya in 1995-1999, Proceedings of the European Geophysical Society Meeting 2002, Nice, France, April 22 - 26, 2002.

2001:

Kern, S., G. Heygster, and K.-P. Johnsen, Sea Ice in the Antarctic linked with Ocean-Atmosphere Forcing (SEA LION): Observed Sea Ice Concentration, in Lemke, P.: SEA LION, Scientific Report, EU Contract No: ENV 4-CT97-0415 (DG 12 - ESCY), 5-59.

2000:

Kern, S., Sea ice concentration derived using SSM/I 85.5 GHz imagery, Proceedings of the Workshop on Mapping and archiving of sea ice data - The expanding role of RADAR, Ottawa, Canada, May 2 - 4, 2000, 179-184.

Kern, S. and G. Heygster, Sea ice concentration retrieval in the Antarctic based on the SSM/I 85 GHz polarization, Proceedings of the International Glaciology Society Symposium, Fairbanks, Alaska, USA, June 19 - 23, 2000; awarded as the BEST STUDENT POSTER.

1999:

Kern, S., Compensating for atmospheric effects on using radiometry at 85 GHz using radiative transfer modeling and numerical weather prediction, Visiting Scientist Report within the EUMETSAT Ocean and Sea-Ice (OSI) SAF, Danish Meteorological Institute, Copenhagen, Denmark, pp. 8.

Kern, S., G. Heygster, and J. Miao, Towards retrieval of Antarctic sea ice using the SSM/I 85.5 GHz polarization difference, Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS'99), Hamburg, Germany, June 28 - July 2, 1999, 1031-1033.

• Reviewer of 264 scientific publications in
  • The Cryosphere / EGU-Sphere (45)
  • Remote Sensing of Environment (42)
  • Remote Sensing (31)
  • Transactions on Geoscience and Remote Sensing (27)
  • Journal of Geophysical Research (25)
  • Annals of Glaciology (11)
  • Geophysical Research Letters (9)
  • Earth System Science Data (8)
  • Letters of Geoscience and Remote Sensing (7)
  • International Journal of Remote Sensing and Remote Sensing Letters (6)
  • Polar Science (4)
  • Deep Sea Research (4)
  • Climate Research (3)
  • Journal of Glaciology (3)
  • Sensors (3)
  • Atmosphere (2)
  • Environmental Science and Pollution Research (2)
  • Journal of Marine Systems (2)
  • JSTARS (2)
  • Polar Research (2)
  • Elementa - Science of the Anthropocene (2)
  • Advances in Space Research (1)
  • Animal Biotelemetry (1)
  • Antarctic Science (1)
  • Canadian Journal of Remote Sensing (1)
  • Climate Dynamics (1)
  • Earth System Dynamics (1)
  • European Physics Journal Plus (1)
  • Fresenius Environmental Bulletin (1)
  • International Journal of Climatology (1)
  • Journal of Climate (1)
  • Journal of Earth System Science (1)
  • Journal of Marine Science and Engineering (1)
  • Journal of Marine Science and Technology (1)
  • Journal of Oceanography (1)
  • Journal of Spectroscopy (1)
  • Oceanography (1)
  • PeerJ (1)
  • Polar Biology (1)
  • Quarterly Journal of the Royal Meteorological Society (1)
  • Review of Geophysics (1)
  • Water (1)
  • Springer Scientific Reports (1)
  • Scientific Data (1)
  • Book contribution (1)

• Reviewer of ~190 conference contributions (several years, e.g. WMO-TECO 2024, IEEE IGARSS 2024, ESA LPS 2022)
• Reviewer of 249 research grant proposals
  • Norway (123 since 2018)
  • EU Horizon2020 MSCN-ITN / MSCA-IF / MSCA-PF / MSCA-DN / EASME proposals (63 since 2018, 38 of these as rapporteur)
  • Finland (28)
  • NordForsk (16)
  • Germany (12)
  • NASA (9)
  • Canada (3)
  • Australia (1)
  • France (1)
  • U.K. (1)
  • U.S. (1)
  • CMEMS (1)
  • Hungary (1)
• Reviewer of 5 data set reports / manuals (Eumetsat OSI-SAF)
• Reviewer of 1 BmbF final report
• Reviewer for 1 EU project (year 2 periodic report + final report)
• Reviewer for Arctic Report Card 2017+2021+2022
• Reviewer of GCOS-IP22
   
• Scientific editor
  • Annals of Glaciology (52(57) and 56(69), 7 paper in total)
  • Turkish Journal of Earth Sciences (4 paper)

2024:

• Member of the International Programm Committee of the WMO-TECO-2024 Conference in Vienna, Austria, September 23-26, 2024.

2023:

• Organization and chairing - together with T. Lavergne (met.no, Norway) and W. M. Kolbe (DMI/DTU, Denmark) - the session "Climate Data Records of sea ice - What's next?" at the IGS Symposium on sea ice ( https://igs2023.awi.de/ ),, June 5-9, 2023, Bremerhaven, Germany.

2022:

• Organization and chairing - together with C. Garcia Izquierdo (CEM, Spain) and E. Woolliams (NPL, U.K.) - the contribution of the Cryosphere community to the Theme 1: Metrology in support of physical science basis of climate change and climate observations - Topic 5: Cryosphere Monitoring of the BIPM-WMO co-sponsored fully online workshop: "Metrology for Climate Action", see  https://www.bipmwmo22.org/ , September 26-30 2022.

2018

• Organization, together with L.T. Pedersen (Danish Technical University, Lyngby, Denmark), G. Heygster (Institute of Environmental Physics, University of Bremen, Bremen, Germany), and B. Ozsoy (Istanbul Technical University, Istanbul, Turkey), of a conference session entitled "The role of snow on sea ice for sea-ice parameter retrieval and variability" at the joint SCAR-IASC POLAR2018 open science conference, Davos, Switzerland, June 19-23, 2018 (https://www.polar2018.org)

2017

• Organization, together with Dirk Notz (Max-Planck Institute for Meteorology, Hamburg, Germany), of the Workshop on "Improved satellite retrievals of sea-ice concentration and sea-ice thickness for climate applications" in Hamburg, Germany, Oct. 9-11 2017; see http://icdc.cen.uni-hamburg.de/fileadmin/user_upload/ESA_Sea-Ice-ECV_Phase2/KernandNotz_WorkshopReport4CliSAP_SeaIceWorkshopHamburg_October2017.pdf

2014

• Organization of the “International Sea Ice Concentration and Thickness Evaluation and Inter-Comparison Workshop” in Hamburg, Germany, Sep. 18-19 2014; see: http://www.climate-cryosphere.org/media-gallery/1348-report-workshop-for-clic-v02
• Organization (together with P. Heil, Univ. of Hobart, Tasmania) of 1 ISSI (International Space Science Institut) workshop (Bern, July 2013, June 2014)
• Co-organization of 1 workshop (together with B. Ozsoy-Cicek, ITU-MF, Istanbul, Turkey) German-Türkisch Workshop on co-operation in polar sciences (Istanbul, June 2014)

2013

• Organization (together with C. Geiger, University of Delaware, US) of 1 conference session (DACA 2013, July 2013, Davos, Switzerland)

Hamburg

• 2023/24 Sea ice physics, observations and modelling I (Notz, D., S. Arndt, S. Kern, et al.)
  Observational methods and remote sensing - Sea ice (Frajka-Williams, E., Gade, M., D. Notz, S. Kern) ¹⁾
• 2023 Sea ice physics, observations and modelling II (Notz, D., S. Arndt, S. Kern, et al.)
• 2022/23 Sea ice physics, observations and modelling I (Notz, D., S. Arndt, S. Kern, et al.)
  Observational methods and remote sensing - Sea ice (Frajka-Williams, E., Gade, M., D. Notz, S. Kern) ¹⁾
• 2022 Sea ice physics, observations and modelling II (Notz, D., S. Arndt, S. Kern, et al.)
• 2021/22 Sea ice physics, observations and modelling I (Notz, D., S. Arndt, S. Kern, et al.)
  Observational methods and remote sensing - Sea ice (Gade, M., N. Fuchs, D. Notz, S. Kern) ¹⁾
• 2021 Sea ice physics, observations and modelling II (Notz, D., S. Arndt, S. Kern, et al.)
• 2020/21 Sea ice physics, observations and modelling I (Notz, D., S. Arndt, S. Kern, et al.)
  Observational methods and remote sensing - Sea ice (Gade, M., R. P. North, D. Notz, S. Kern) ¹⁾
• 2020 Sea ice observations and modelling (Notz, D., S. Kern, et al.)
• 2019/20 Sea ice observations and modelling II - Sea ice remote sensing (Notz, D., S. Arndt, S. Kern, et al.)
• 2019 Sea ice observations and modelling I - Sea ice remote sensing (Notz, D., S. Kern, et al.)
  Observational methods and remote sensing - Sea ice (Stammer, D., M. Gade, L. Kaleschke, S. Kern, et al.)
• 2016/17 Observational methods and remote sensing - Sea ice (Stammer, D., M. Gade, L. Kaleschke, S. Kern, et al.)
• 2013 Observational methods and remote sensing - Sea ice (Stammer, D., M. Gade, L. Kaleschke, S. Kern, et al.)
• 2012/13 Observational methods and remote sensing - SAR (Stammer, D., K. Hatten, S. Kern, et al.)
• 2011/12 Observational methods and remote sensing - Sea ice (Stammer, D., M. Gade, S. Kern, et al.)
• 2008/09 Observational methods and remote sensing - SAR (Stammer, D., M. Gade, S. Kern, et al.)
• 2005 Messmethoden und Fernerkundung - Sea ice / Snow / Ice sheets
• 2004 Einführung in die Satellitenozeanographie I - Sea ice
• 2002/03 Einführung in die Satellitenozeanographie II - Sea ice
• 2002 Einführung in die Satellitenozeanographie I - Passive Sensoren

External

• San Antonio, Texas, U.S.
  Oct. 25, 2010 Microwave remote sensing of sea ice - Guest Lecture
• St. Petersburg, Russia
  Dec. 14-17 2004 Remote sensing of sea ice - POMOR - 4 Lectures

¹⁾ When there is special topic mentioned, e.g. "Sea ice" or "Sea ice remote sensing" then I contributed with one specific lecture only.

• Member of WMO GCOS working group on Climate Data Centres (since 2024)
• Expert team member of WMO GCOS ECV-Rationalization Task Team (since 2023)
• Expert team member of WMO GCOS OOPC (since 2023)
• WMO sea ice expert (since 2022)
• WMO Global Cryosphere Watch (GCW) team member (since 2022)
• AMAP Climate Expert Group member (since 2015)
• Co-Leader of ESA CCI Sea Ice ECV project phase 1 team for WP1000: User requirements (2011/2012), and phase 1 & 2 WP4000 Product validation & Inter-comparison (2013/2014 & 2017/2018), and Antarctic sea ice thickness option (2013-2015)
• Member of Scientific Board for the Earth Observation and Cryosphere Science Conference, November 13-16 2012, Frascati, Italy
• Co-PI for CryoSAT, ALOS-PALSAR, and TerraSAR-X
• Supervision of 8 master and 4 Ph.D. students (2005 - 2010, 2023+)
• Visiting Scientist, Eumetsat-funded in Copenhagen, Denmark, Topic: Radiative transfer over sea ice (April 1999)