Vegetation Dynamics

Explore the world’s largest civilian collection of images of the Earth’s surface. Find satellite images and data, aerial photography, elevation and land cover datasets, digitized maps, and our Image Gallery collections.

Weekly VegDRI maps integrate remote sensing, climate, and biophysical data to provide timely drought information for the conterminous United States. (2009-present)

Weekly geospatial model and dataset that is an indicator of short-term dryness across the conterminous United States (CONUS). Quick Drought Response Index (QuickDRI) is designed to have improved sensitivity to early-stage drought conditions and rapidly evolving drought events.

Daily global Normalized Difference Vegetation Index (NDVI) images and data based on surface reflectance derived from data acquired by the Advanced Very High Resolution Radiometer (AVHRR) on NOAA’s polar orbiting weather satellites (1981-2013).

An annual record of nine historical Remote Sensing Phenology metrics for the conterminous United States is available at a resolution of 250 m for products derived from eMODIS data (2001-present).

The EROS Moderate Resolution Imaging Spectroradiometer (eMODIS) collection is based on the Moderate Resolution Imaging Spectroradiometer (MODIS) data acquired by the National Aeronautics and Space Administration's (NASA) Earth Observing System (EOS). Note: The eMODIS datasets are no longer being produced after October 1st, 2022. These datasets will remain available for historic reference only...

An annual record of nine historical Remote Sensing Phenology metrics for the conterminous United States is available at a resolution of 1 km for AVHRR phenology products (1989-present).

The Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) provides a new level of detail in global topographic data. The GMTED2010 product suite contains seven new raster elevation products for each of the 30-, 15-, and 7.5-arc-second spatial resolutions and incorporates the current best available global elevation data.

Weekly and biweekly NDVI composites based on 1-km AVHRR data (1989 to 2019). To all users of AVHRR composites. The NOAA 19 satellite which currently supports the AVHRR sensor has been degrading in orbit to the point where the nadir view is on the day night terminator within its orbit.

1-km multispectral data from the NOAA satellite series. (1979 to 2019) To all users of AVHRR composites. The NOAA 19 satellite which currently supports the AVHRR sensor has been degrading in orbit to the point where the nadir view is on the day night terminator within its orbit.

AVHRR 1KM Global Scaling

Anticipated Project Phases