MOD44W.006 Terra Land Water Mask Derived From MODIS and SRTM Yearly Global 250m

AI-generated Key Takeaways

• The MOD44W V6 land/water mask 250m product provides a land-water mask derived using a decision tree classifier and validated with a previous version.

• This dataset is available from 2000-01-01 to 2015-01-01 with a yearly cadence.

• The dataset includes a water mask band and a quality assurance band.

• MODIS data and products, including this one, have no restrictions on subsequent use, sale, or redistribution.

• This dataset can be explored using Google Earth Engine for scientific analysis and visualization.

Dataset Availability

2000-01-01T00:00:00Z–2015-01-01T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/006/MOD44W")

Cadence

1 Year

Tags

geophysical mod44w modis nasa srtm surface-ground-water usgs water-mask

Description

The MOD44W V6 land/water mask 250m product is derived using a decision tree classifier trained with MODIS data and validated with the MOD44W V5 product. A series of masks are applied to address known issues caused by terrain shadow, burn scars, cloudiness, or ice cover in oceans.

Bands

Pixel Size
250 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	Quality assurance (QA)
Bitmask for water_mask_QA Bits 0-3: Quality assurance (QA) 1: High confidence observation 2: Lower confidence water, but MOD44W V5 is water 3: Lower confidence land 4: Ocean mask 5: Ocean mask, but no water detected 6: Burned area (MCD64A1) 7: Urban or impervious surface 8: No water detected, Version 5 MOD44W shows inland water 10: No data (outside of projected area)

Terms of Use

Terms of Use

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

Citations

Citations:

• Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.

DOIs

• https://doi.org/10.5067/MODIS/MOD44W.006

Explore with Earth Engine

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/006/MOD44W')
                  .filter(ee.Filter.date('2015-01-01', '2015-05-01'));
var waterMask = dataset.select('water_mask');
var waterMaskVis = {
  min: 0,
  max: 1,
  palette: ['bcba99', '2d0491'],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(waterMask, waterMaskVis, 'Water Mask');

Open in Code Editor

MOD44W.006 Terra Land Water Mask Derived From MODIS and SRTM Yearly Global 250m

The MOD44W V6 land/water mask 250m product is derived using a decision tree classifier trained with MODIS data and validated with the MOD44W V5 product. A series of masks are applied to address known issues caused by terrain shadow, burn scars, cloudiness, or ice cover in oceans.

MODIS/006/MOD44W, geophysical,mod44w,modis,nasa,srtm,surface-ground-water,usgs,water-mask

2000-01-01T00:00:00Z/2015-01-01T00:00:00Z

-90 -180 90 180

Google Earth Engine

https://developers.google.com/earth-engine/datasets

• https://doi.org/10.5067/MODIS/MOD44W.006
• https://doi.org/10.5067/MODIS/MOD44W.006