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.
These composites are created from
all the scenes in
each annual period beginning from the first day of the year and
continuing to the last day of the year. All the images from each year
are included in the composite, with the greenest pixel as the composite value, where
the greenest pixel means the pixel with the highest value of
the Normalized Difference Vegetation Index (NDVI).
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["This Landsat 7 dataset provides annual greenest-pixel composites from 1999 to 2017, using top-of-atmosphere (TOA) reflectance."],["The dataset is considered deprecated and users are encouraged to switch to a Collection 1-based dataset, LANDSAT/LE07/C01/T1_ANNUAL_GREENEST_TOA."],["Composites are created by selecting the pixel with the highest Normalized Difference Vegetation Index (NDVI) value for each year."],["Landsat datasets are in the public domain and can be used freely with proper USGS acknowledgement."],["The USGS, the data provider, stopped producing Pre-Collection Landsat as of May 1, 2017, making this collection complete."]]],["This Landsat 7 dataset, provided by USGS, contains annual composites from 1999 to 2017, derived from orthorectified scenes using top-of-atmosphere (TOA) reflectance. Each year's composite includes all scenes, selecting the \"greenest\" pixel based on the highest Normalized Difference Vegetation Index (NDVI). The USGS has discontinued producing this pre-collection dataset, advising users to switch to Collection 1. The data is public domain and requires USGS acknowledgement when used.\n"]]
