Folder Land Water Mask (MOD44W)

Example of the MODIS Land Water Mask MODIS Tile 558 h22v02The MODIS Land Water Mask is created from MODIS 250 m imagery in combination with Shuttle Radar Topography Mission (SRTM) Water Body Data (SWBD) to create a global map of surface water at 250 m spatial resolution. Currently, only one map exists, created in 2009 by Carroll et al. (2009). Because only one MODIS-based map exists, an analysis of surface water change is not possible at this time.


For usage please see ABDS Data Policy
Suggested citation:
CAFF (2015). Land Water Mask: Arctic Land Cover Change Index. Conservation of Arctic Flora and Fauna, Arctic Biodiversity Data Service (ABDS).



Basic Info

Earth-Gridded Tile Area ~10° x 10° (at the equator)
Image Dimensions 4800 x 4800 rows/columns
File Size ~250 KB
Resolution 250 meters
Projection Sinusoidal
Data Format HDF-EOS
Science Data Sets (HDF SDS Layers) 2


250 m Land-Water Mask HDF Science Data Set Layers

Science Data Set Units Data-Type Fill Value Valid Range
Water Mask None 8-bit Unsigned 255 0–255
Water Mask QA None 8-bit Unsigned 255 0–255

250 m Land-Water Mask HDF Science QA Legend

Value Description
1 SRTM Water Body Dataset (SWBD) water
2 MODIS 250 m Water-hits water
3 MODIS 250 m Decision-tree water
4 Digitized water
5 Mosaic of Antarctica (MOA) water
10 Digitized land
253 Area outside of projection
255 Fill value


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