Surface Solar Radiation Parameters (SARAH-3) from EUMETSAT CM-SAF
Topics
- Access
- Description
- Parameters
- Coverage, spatial and temporal resolution
- Data quality
- Contact person
- References
- Data citation
Access
RESTRICTED: This link to the data set is only available for a restricted user group. The data set is only accessible in CEN/MPI net or accessible from external nets with a customer account. Please contact ICDC if you would like to access this data from outside the network.
- View solar radiance data at LAS
- Access solar radiance data via OPeNDAP
- Data access via file system: /data/icdc/land/eumetsat_surfacesolarirradiance
Description
The SARAH-3 data set comprises 7 parameters related to the surface solar irradiance we offer here for internal use: cloud effective albedo (CAL), surface incoming shortwave radiation (SIS), surface incoming direct shortwave radiation (SID), surface direct normalized shortwave radiation (DNI), Sunshine duration, Photosynthetic Active Radiation (PAR), and Daylight. All these are derived from observations of the geostationary first generation (Meteosat-MVIRI) and second generation (Meteosat-SEVIRI) satellite sensors. The data set therefore basically covers Africa, Europe, and most of the Atlantic Ocean.
For more information visit Eumetsat CM-SAF SARAH-3.
Last update of data set at ICDC: February 29 2024.
Parameters
| Name | Unit | Comment |
|---|---|---|
| Surface incoming solar radiation (SIS) | W/m² | SIS = (1 - CAL) * SIS_clear-sky |
| Surface incoming direct solar radiation (SID) | W/m² | relative to a horizontal plane, wavelengths: 0.2 - 4.0 µm |
| Surface incoming direct normalized solar irradiance (DNI) | W/m² | normalized with respect to sun zenith angle (SZA) |
| Effective cloud albedo (CAL) | none | |
| Mean Daylight (DAL) | kLux | |
| Photosynthetic Active Radiation (PAR) | µmol /m²s | surface downwelling photosynthetic photon flux in air |
| Sunshine duration | h |
Coverage, spatial and temporal resolution
Period and temporal resolution:
- Monthly: 1983-01 to 2023-11
Coverage and spatial resolution:
- Meteosat Disc Area (see Figure above)
- Spatial resolution: 0.05° x 0.05°, geographic grid
- Geographic longitude: about -65°E to 65°E
- Geographic latitude: about -65°N to 65°N
- Dimension: 2601 columns x 2601 rows
- Altitude: following terrain
Format:
- NetCDF
Data quality
For information about the data quality we refer to the respective Eumetsat CM-SAF web page and the references.
Contact
Climate Monitoring Satellite Application Facility (CM-SAF)
Helpdesk at www.cmsaf.eu
email: contact.cmsaf (at) dwd.deStefan Kern
University of Hamburg
email: stefan.kern (at) uni-hamburg.de
References
Literature:
- Müller, R., U. Pfeifroth, C. Träger-Chatterjee, J. Trentmann, and R. Cremer (2015), Digging the METEOSAT Treasure-3 Decades of Solar Surface Radiation, Remote Sensing, 7(6), 8067-8101, https://doi.org/10.3390/rs70608067 (pdf, not barrier free).
- Pfeifroth, U., A. Sanchez-Lorenzo, V. Manara, J. Trentmann, and R. Hollmann, 2018: Trends and Variability of Surface Solar Radiation in Europe based on Surface- and Satellite-based Data Records, J. Geophys. Res., 123, 1735-1754, https://doi.org/10.1002/2017JD027418 (pdf, not barrier free).
- Kothe, S., U. Pfeifroth, R. Cremer, J. Trentmann, and R. Hollmann, 2017: A Satellite-Based Sunshine Duration Climate Data Record for Europe and Africa, Remote Sens., 9, 429, https://doi.org/10.3390/rs9050429 (pdf, not barrier free).
- EUMETSAT CM SAF Algorithm Theoretical Basis Document (ATBD) (pdf, not barrier free)
- EUMETSAT CM SAF Product User Manual (PUM) (pdf, not barrier free)
- EUMETSAT CM SAF Validation Report (pdf, not barrier free)
Data citation
Please cite the data as follows:
Pfeifroth, Uwe; Kothe, Steffen; Drücke, Jaqueline; Trentmann, Jörg; Schröder, Marc; Selbach, Nathalie; Hollmann, Rainer (2023): Surface Radiation Data Set - Heliosat (SARAH) - Edition 3, Satellite Application Facility on Climate Monitoring, DOI:10.5676/EUM_SAF_CM/SARAH/V003, https://doi.org/10.5676/EUM_SAF_CM/SARAH/V003 .