Land-Water-Distribution from MODIS-SRTM

modis-srtm-tiles-download — The upper figure shows a snapshot ot the ICDC MODIS Tiles Download Tool, a map with the distribution of the MODIS tiles. For each tile containing some land, a data set is available. "h" and "v" allow the orientation on this map and are required to obtain the land-water-distribution of the region of interest. For example the tile h18v03 covers the North Sea region. The result is shown in the second figure. Copyright: UHH/CEN/S. Kern

MODIS-SRTM Land-Water Distribution — The upper figure shows a snapshot ot the ICDC MODIS Tiles Download Tool, a map with the distribution of the MODIS tiles. For each tile containing some land, a data set is available. "h" and "v" allow the orientation on this map and are required to obtain the land-water-distribution of the region of interest. For example the tile h18v03 covers the North Sea region. The result is shown in the second figure. Copyright: UHH/CEN/S. Kern

Topics

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.

Access data via ICDC's MODIS Tiles Download Tool: On the website choose a tile on the map and get the corresponding data paths and THREDDS download links
Data access via file system: /data/icdc/land/modis-srtm_landwaterdistribution

to top

Description

The data set contains a new, high resolution (250 m) data set of the MOD44W Collection 6 land-water distribution. This data set is primarily based on results of the Space Shuttle Topographic Mission (SRTM) for the region 60°S to 60°N, on global 16-day composites of TERRA-MODIS and AQUA-MODIS data for 60°-90°N, and on the Mosaic of Antarctica (MOA, see references). Gaps in the region covered by SRTM are filled with MODIS data also.

In contrast to the previous version this new version is dynamic, i.e. available annually, and contains information about burned areas (scars).

A brief description of this data set and the improvement compared to earlier versions is given in the Global MODIS water maps Users Guide and on the LP DAAC - MOD44W web page (see references) .

Last update of data set at ICDC: April 1, 2021.

to top

Parameters

Parameters of the land water distribution data set
Name	Unit	Comment
land-water distribution (0 or 1)	-	-
quality flag	1 ... 8, 10	Here 6: Burn scar (from MCD64A1)

to top

Coverage, spatial and temporal resolution

Period and temporal resolution:

2000 to 2015
yearly

Coverage and spatial resolution:

Global
Spatial resolution: 250 m x 250 m
Geographic longitude: -180°E to 180°E
Geographic latitude: -90°N to 90°N
Dimension: 10° x 10° MODIS tiles, each tile contains 4800 columns x 4800 rows
Altitude: follows topography

Format:

NetCDF

to top

Data quality

Data quality was checked through comparison with in situ observations and independent, finer resolved air- and space-borne sensors (e.g. LandSAT and ASTER), and the collection 5 product (see MOD44W: Global MODIS water maps user guide and other references).

Compare to the previous version several improvements have been made (see LP DAAC - MOD44W web page at references).

This data set includes a quality flag.

to top

Contact

Mark Carroll
Dept. of Geography, University of Maryland
email: markc (at) umd.edu

LPDAAC
phone: Voice: 605-594-6116 | Toll Free: 866-573-3222
email: lpdaac (at) usgs.gov or https://lpdaac.usgs.gov/lpdaac-contact-us/

Stefan Kern
ICDC / CEN / University of Hamburg
E-Mail: stefan.kern"AT"uni-hamburg.de

to top

References

Literature:

NSIDC/NASA MODIS Mosaic of Antarctica 2003-2004 (MOA2004) Image Map, Version 2, User Guide (pdf, not barrierfree)
NASA LP DAAC MOD44W: Global MODIS water maps user guide , V6, Carroll, M. L.et al, (pdf, not barrierfree)
Carroll, M. L., DiMiceli, C.M., Townshend, J.R.G., Sohlberg, R.A., Elders, A.I., Devadiga, S., Sayer, A.M., and Levy, R.C., 2016, Development of an operational land water mask for MODIS Collection 6, and influence on downstream data products, International Journal of Digital Earth, 10(2), 207-218, https://doi.org/10.1080/17538947.2016.1232756
Carroll, M.L., Townshend, J.R., DiMiceli, C.M., Noojipady, P., and Sohlberg, R.A., 2009, A new global raster water mask at 250 m resolution, International Journal of Digital Earth, 2, 291-308.
Giglio, L., Loboda, T., Roy, D.P., Quayle, B., and Justice, C.O., 2009, An active-fire based burned area mapping algorithm for the MODIS sensor. Remote Sensing of Environment, 113, 408-420.
Boschetti, L., D. P. Roy, L. Giglio, H. Huang, M. Zubkova, and M. L. Humber, 2019, Global validation of the collection 6 MODIS burned area product, Remote Sensing of Environment, 235, 111490, http://doi.org/10.1016/j.rse.2019.111490

Websites:

The Terra Moderate Resolution Imaging Spectroradiometer (MODIS) Land Water Mask (MOD44W), LP DAAC - MOD44W web page, https://lpdaac.usgs.gov/products/mod44wv006/

to top

Data citation

Please cite the data as follows:

Carroll, M.L., DiMiceli, C.M., Wooten, M.R., Hubbard, A.B., Sohlberg, R.A., Townshend, J.R.G (2017). MOD44W MODIS/Terra Land Water Mask Derived from MODIS and SRTM L3 Global 250m SIN Grid V006 [Data set]. NASA EOSDIS Land Processes DAAC. LAst accessed 2021-03-01 from https://doi.org/10.5067/MODIS/MOD44W.006, provided as tiles in netCDF file format by the Integrated Climate Data Center (ICDC), CEN, University of Hamburg.

and with the following acknowledgments:

Thanks to ICDC, CEN, University of Hamburg for data support.

to top