USGS EROS Archive - AVHRR Normalized Difference Vegetation Index (NDVI) Composites
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.
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. Due to this, inputs of AVHRR data from NOAA CLASS are severely degraded and we can no longer generate AVHRR NDVI composites for an indefinite period going forward. We continue to explore options for the current AVHRR NDVI collection and are working on options for future NDVI composites as well. In the meantime, we recommend using the eMODIS NDVI V6, 7 and 14 day composites available in the Vegetation Monitoring section of Earth Explorer https://earthexplorer.usgs.gov.
Normalized Difference Vegetation Index (NDVI) Composites are produced from multiple Advanced Very High Resolution Radiometer (AVHRR) daily observations that have been composited together to create a nearly cloud-free image showing maximum greenness. An NDVI ratio is produced from bands one and two of the AVHRR composite to produce a derived NDVI band composite.
The following NDVI products are available:
Conterminous U.S. and Alaska Weekly and biweekly NDVI composites date from January 1989 to 2019. U.S. composites are cast to the Lambert Azimuthal Equal-Area projection. Alaska composites are cast to the Albers Equal-Area Conic projection. The data will include a composite for each of the acquired AVHRR bands, as well as a derived NDVI band. The files are available in binary (8-bit) format.
Global 10-day composites consist of 10-day composited AVHRR data and a derived NDVI band for limited dates between April 1992 and May 1996. The data is cast to the Interrupted Goode's Homolosine projection. Subsampled resolution and geographic subsets are also available.
Raw (Level 1b) data consists of a single scene that was collected by a single AVHRR satellite on a specific date and time. The approximate scene size is 2400 x 6400 kilometers (1491 x 4000 miles). Public distribution is via the NOAA Satellite Active Archive.
Coverage Maps
Coverage Maps indicating the availability of AVHRR NDVI Composites are available for download.
Additional Information
Access Data
EarthExplorer can be used to search, preview, and download AVHRR Composites, Orb SEG, and Global 1K data. The collections are located under the AVHRR data set.
Digital Object Identifier (DOI)
Below are other science projects associated with this product.
USGS EROS Archive - Vegetation Monitoring - NOAA CDR NDVI
USGS EROS Archive - Vegetation Monitoring - EROS Moderate Resolution Imaging Spectroradiometer (eMODIS)
USGS EROS Archive - Advanced Very High Resolution Radiometer - AVHRR
Fire Danger Forecast
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.
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. Due to this, inputs of AVHRR data from NOAA CLASS are severely degraded and we can no longer generate AVHRR NDVI composites for an indefinite period going forward. We continue to explore options for the current AVHRR NDVI collection and are working on options for future NDVI composites as well. In the meantime, we recommend using the eMODIS NDVI V6, 7 and 14 day composites available in the Vegetation Monitoring section of Earth Explorer https://earthexplorer.usgs.gov.
Normalized Difference Vegetation Index (NDVI) Composites are produced from multiple Advanced Very High Resolution Radiometer (AVHRR) daily observations that have been composited together to create a nearly cloud-free image showing maximum greenness. An NDVI ratio is produced from bands one and two of the AVHRR composite to produce a derived NDVI band composite.
The following NDVI products are available:
Conterminous U.S. and Alaska Weekly and biweekly NDVI composites date from January 1989 to 2019. U.S. composites are cast to the Lambert Azimuthal Equal-Area projection. Alaska composites are cast to the Albers Equal-Area Conic projection. The data will include a composite for each of the acquired AVHRR bands, as well as a derived NDVI band. The files are available in binary (8-bit) format.
Global 10-day composites consist of 10-day composited AVHRR data and a derived NDVI band for limited dates between April 1992 and May 1996. The data is cast to the Interrupted Goode's Homolosine projection. Subsampled resolution and geographic subsets are also available.
Raw (Level 1b) data consists of a single scene that was collected by a single AVHRR satellite on a specific date and time. The approximate scene size is 2400 x 6400 kilometers (1491 x 4000 miles). Public distribution is via the NOAA Satellite Active Archive.
Coverage Maps
Coverage Maps indicating the availability of AVHRR NDVI Composites are available for download.
Additional Information
Access Data
EarthExplorer can be used to search, preview, and download AVHRR Composites, Orb SEG, and Global 1K data. The collections are located under the AVHRR data set.
Digital Object Identifier (DOI)
Below are other science projects associated with this product.