![MODIS/006/MOD44W](https://developers.google.com/earth-engine/datasets/images/MODIS/MODIS_006_MOD44W_sample.png)

Dataset Availability
:   2000-01-01T00:00:00Z--2015-01-01T00:00:00Z

Dataset Producer
:


    [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MOD44W.006)

Cadence
:   1 Year

Tags
:
    [geophysical](https://developers.google.com/earth-engine/datasets/tags/geophysical) [mod44w](https://developers.google.com/earth-engine/datasets/tags/mod44w) [modis](https://developers.google.com/earth-engine/datasets/tags/modis) [nasa](https://developers.google.com/earth-engine/datasets/tags/nasa) [srtm](https://developers.google.com/earth-engine/datasets/tags/srtm) [surface-ground-water](https://developers.google.com/earth-engine/datasets/tags/surface-ground-water) [usgs](https://developers.google.com/earth-engine/datasets/tags/usgs) [water-mask](https://developers.google.com/earth-engine/datasets/tags/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

**Bands**

Pixel size: 250 meters (all bands)

| Name | Pixel Size | Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| `water_mask` | 250 meters | Land-water mask |
| Bitmask for water_mask - Bit 0: Land-water mask - 0: Land - 1: Water ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| `water_mask_QA` | 250 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](https://lpdaac.usgs.gov/citing_our_data)
  for information on citing LP DAAC datasets.

### DOIs

- <https://doi.org/10.5067/MODIS/MOD44W.006>

### Explore with Earth Engine

> [!NOTE]
> **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)

### Code Editor (JavaScript)

```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](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_006_MOD44W) [MOD44W.006 Terra Land Water Mask Derived From MODIS and SRTM Yearly Global 250m](https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MOD44W) 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/https://doi.org/10.5067/MODIS/MOD44W.006)
- [https://doi.org/10.5067/MODIS/MOD44W.006](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MOD44W)