These Landsat 7 composites are made from Level L1T orthorectified scenes, using the
computed top-of-atmosphere (TOA) reflectance. See Chander et al.
(2009)
for details on the TOA computation.
As of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to a Collection 1-based dataset. See this documentation page for more information.
The Normalized Difference Vegetation Index is
generated from the Near-IR and Red bands of each scene as (NIR - Red) /
(NIR + Red), and ranges in value from -1.0 to 1.0.
These composites are created from
all the scenes in
each 32-day period beginning from the first day of the year and
continuing to the 352nd day of the year. The last composite of the
year, beginning on day 353, will overlap the first composite of the
following year by 20 days. All the images from each 32-day period are
included in the composite, with the most recent pixel as the composite value.
Bands
Bands
Name
Min
Max
Pixel Size
Description
NDVI
-1*
1*
30 meters
Normalized Difference Vegetation Index
* estimated min or max value
Terms of Use
Terms of Use
Landsat datasets are federally created data
and therefore reside in the public domain and may be used, transferred, or reproduced without copyright restriction.
Acknowledgement or credit of the USGS as data source should be provided
by including a line of text citation such as the example shown below.
(Product, Image, Photograph, or Dataset Name) courtesy of
the U.S. Geological Survey
Example: Landsat-7 image courtesy of the U.S. Geological Survey
These Landsat 7 composites are made from Level L1T orthorectified scenes, using the computed top-of-atmosphere (TOA) reflectance. See Chander et al. (2009) for details on the TOA computation. As of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["This Landsat 7 dataset provides 32-day Normalized Difference Vegetation Index (NDVI) composites from 1999 to 2017, calculated using top-of-atmosphere reflectance."],["The dataset is deprecated and users should switch to the Collection 1-based dataset, LANDSAT/LE07/C01/T1_32DAY_NDVI, for continued Landsat data."],["NDVI values range from -1.0 to 1.0 and are derived from the Near-IR and Red bands of Landsat 7 scenes."],["Composites are created using all scenes within a 32-day period, prioritizing the most recent pixel for the composite value."],["The dataset is provided by the USGS and resides in the public domain, but proper citation is encouraged."]]],["This Landsat 7 dataset, provided by USGS, contains 32-day Normalized Difference Vegetation Index (NDVI) composites from 1999-01-01 to 2017-04-07. Composites are created from all scenes within each 32-day period, using the most recent pixel value and top-of-atmosphere reflectance. The dataset is complete because USGS stopped producing Pre-Collection Landsat. Data users are advised to switch to a Collection 1-based dataset and provide USGS credit. The NDVI band ranges from -1 to 1 with 30-meter pixel resolution.\n"]]
