The Global Water Mask uses the SWBD (SRTM Water Body
Data) in combination with MODIS 250m data to create a complete
global map of surface water at 250m spatial resolution, circa 2000-2002. This
dataset is intended for use in processing of raster data and for
masking out water in final raster data products.
Bands
Pixel Size250 meters
Bands
Name
Pixel Size
Description
water_mask
meters
Land-water mask
Bitmask for water_mask
Bit 0: Land-water mask
0: Land
1: Water
water_mask_qa
meters
Shows which data source provided the water pixel.
Bitmask for water_mask_qa
Bits 0-3: Land-water mask HDF science QA
1: SRTM water body dataset (SWBD) water
2: MODIS 250m water-hits water
3: MODIS 250m decision-tree water
4: Digitized water
5: Mosaic of Antarctica (MOA) water
10: Digitized land
Terms of Use
Terms of Use
MODIS data and products acquired through the LP DAAC
have no restrictions on subsequent use, sale, or redistribution.
The Global Water Mask uses the SWBD (SRTM Water Body Data) in combination with MODIS 250m data to create a complete global map of surface water at 250m spatial resolution, circa 2000-2002. This dataset is intended for use in processing of raster data and for masking out water in final …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThe MODIS/MOD44W/MOD44W_005_2000_02_24 dataset provides a global water mask at 250m resolution, combining data from SRTM and MODIS to identify surface water.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset, covering circa 2000-2002, is primarily used for processing raster data and masking out water in final products.\u003c/p\u003e\n"],["\u003cp\u003eIt includes two bands: \u003ccode\u003ewater_mask\u003c/code\u003e (indicating land or water) and \u003ccode\u003ewater_mask_qa\u003c/code\u003e (specifying the water pixel's source).\u003c/p\u003e\n"],["\u003cp\u003eMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset further using Google Earth Engine.\u003c/p\u003e\n"]]],[],null,["# MOD44W.005 Land Water Mask Derived From MODIS and SRTM\n\nDataset Availability\n: 2000-02-24T00:00:00Z--2000-02-24T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table)\n\nTags\n:\n[geophysical](/earth-engine/datasets/tags/geophysical) [mod44w](/earth-engine/datasets/tags/mod44w) [modis](/earth-engine/datasets/tags/modis) [srtm](/earth-engine/datasets/tags/srtm) [surface-ground-water](/earth-engine/datasets/tags/surface-ground-water) [water-mask](/earth-engine/datasets/tags/water-mask) \n\n#### Description\n\nThe Global Water Mask uses the SWBD (SRTM Water Body\nData) in combination with MODIS 250m data to create a complete\nglobal map of surface water at 250m spatial resolution, circa 2000-2002. This\ndataset is intended for use in processing of raster data and for\nmasking out water in final raster data products.\n\n### Bands\n\n\n**Pixel Size**\n\n250 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|-----------------|------------|---------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `water_mask` | meters | Land-water mask |\n| Bitmask for water_mask - Bit 0: Land-water mask - 0: Land - 1: Water ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `water_mask_qa` | meters | Shows which data source provided the water pixel. |\n| Bitmask for water_mask_qa - Bits 0-3: Land-water mask HDF science QA - 1: SRTM water body dataset (SWBD) water - 2: MODIS 250m water-hits water - 3: MODIS 250m decision-tree water - 4: Digitized water - 5: Mosaic of Antarctica (MOA) water - 10: Digitized land ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC\nhave no restrictions on subsequent use, sale, or redistribution.\n\n### Citations\n\nCitations:\n\n- Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data)\n for information on citing LP DAAC datasets.\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.Image('MODIS/MOD44W/MOD44W_005_2000_02_24');\nvar waterMask = dataset.select('water_mask');\nvar waterMaskVis = {\n min: 0.0,\n max: 1,\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(waterMask, waterMaskVis, 'Water Mask');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_MOD44W_MOD44W_005_2000_02_24) \n[MOD44W.005 Land Water Mask Derived From MODIS and SRTM](/earth-engine/datasets/catalog/MODIS_MOD44W_MOD44W_005_2000_02_24) \nThe Global Water Mask uses the SWBD (SRTM Water Body Data) in combination with MODIS 250m data to create a complete global map of surface water at 250m spatial resolution, circa 2000-2002. This dataset is intended for use in processing of raster data and for masking out water in final ... \nMODIS/MOD44W/MOD44W_005_2000_02_24, geophysical,mod44w,modis,srtm,surface-ground-water,water-mask \n2000-02-24T00:00:00Z/2000-02-24T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_MOD44W_MOD44W_005_2000_02_24)"]]
