- Dataset Availability
- 1999-01-01T00:00:00Z–2017-01-01T00:00:00Z
- Dataset Provider
- USGS
- Earth Engine Snippet
-
ee.ImageCollection("LANDSAT/LE7_L1T_ANNUAL_GREENEST_TOA") - Tags
Description
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
See the USGS Visual Identity System Guidance for further details on proper citation and acknowledgement of USGS products.
Explore with Earth Engine
Code Editor (JavaScript)
// NOTE: This ImageCollection is deprecated.
var dataset = ee.ImageCollection('LANDSAT/LE7_L1T_ANNUAL_GREENEST_TOA');
Map.setCenter( -119.0446, 35.1195, 12);
Map.addLayer(dataset.select('greenness'), null, 'greenness');