MOD44B.051 Terra Vegetation Continuous Fields Yearly Global 250m (MODIS/051/MOD44B)
Version V051
The Terra MODIS Vegetation Continuous Fields (VCF)
product is a sub-pixel-level representation of surface vegetation
cover estimates globally. Designed to continuously represent
Earth’s terrestrial surface as a proportion of basic vegetation
traits, it provides a gradation of three surface cover components:
percent tree cover, percent non-tree cover, and percent bare.
VCF products provide a continuous, quantitative portrayal of
land surface cover with improved spatial detail, and hence, are
widely used in environmental modeling and monitoring applications.
Generated yearly, the VCF product is produced using monthly
composites of Terra MODIS 250 and 500 meters Land Surface Reflectance
data, including all seven bands, and Land Surface Temperature.
| Name | Description | Gee Unit |
|---|---|---|
| Percent_Tree_Cover | Percent of a pixel which is covered by tree canopy | % |
| Percent_NonTree_Vegetation | Percent of a pixel which is covered by non-tree vegetation | % |
| Percent_NonVegetated | Percent of a pixel which is not vegetated | % |
| Quality | Describes those inputs that had poor quality (cloudy, high aerosol, cloud shadow, or view zenith >45°). Each bit in the field represents 1 out of 8 input surface reflectance files to the model. | |
| Percent_Tree_Cover_SD | Standard deviation (SD) of the 30 models that were used to generate the pixel value in the percent tree cover data layer | % |
| Percent_NonVegetated_SD | Standard deviation (SD) of the 30 models that were used to generate the pixel value in the percent non-vegetated data layer | % |
| Cloud | Clarifies the 'Quality' layer to give the user an indication that the 'bad' data refers to cloudy input data. Each bit in the field represents 1 out of 8 input surface reflectance files to the model. |
Providers | |
|---|---|
| NASA LP DAAC at the USGS EROS Center (producer, licensor) | |
| Google Earth Engine (host) | |
| STAC Version | 0.6.0 |
| Keywords | annual, geophysical, global, mod44b, modis, terra, tree_cover, vegetation |
| License | proprietary |
| Temporal Extent | 3/4/2000, 4:00:00 PM - now |
| Citation | Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data) for information on citing LP DAAC datasets. |
| Type | image_collection |
| GSD | metersm |
| Platform | Terra |
| Instrument | MODIS |
| Cadence | year |