These Landsat 4 TM Collection 1 Tier 1 composites are made from Tier 1 orthorectified scenes, using the
computed top-of-atmosphere (TOA) reflectance.
See Chander et al. (2009)
for details on the TOA computation.
These composites are created from
all the scenes in each
8-day period beginning from the first day of the year and continuing
to the 360th day of the year. The last composite of the year,
beginning on day 361, will overlap the first composite of the
following year by 3 days. All the images from each 8-day period are
included in the composite, with the most recent pixel as the composite value.
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 4 TM Collection 1 Tier 1 composites are made from Tier 1 orthorectified scenes, using the computed top-of-atmosphere (TOA) reflectance. See Chander et al. (2009) for details on the TOA computation. These composites are created from all the scenes in each 8-day period beginning from the first day …
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["Provides Landsat 4 TM Collection 1 Tier 1 8-Day TOA Reflectance Composite data from August 21, 1982, to December 11, 1993."],["The composites are created from all scenes in each 8-day period, using the most recent pixel as the composite value."],["Includes spectral bands such as Blue, Green, Red, Near Infrared, Shortwave Infrared, and Thermal Infrared with a 30-meter resolution."],["Landsat datasets are in the public domain and can be used without copyright restrictions, but USGS acknowledgement is recommended."],["Available on Google Earth Engine for research, education, and non-profit use."]]],["The dataset comprises Landsat 4 TM Collection 1 Tier 1 composites, derived from orthorectified scenes using top-of-atmosphere (TOA) reflectance. Composites are generated from all scenes within each 8-day period, from 1982-08-21 to 1993-12-11, with the most recent pixel as the value. Available via Google Earth Engine, the dataset has a 30-meter resolution and includes bands for blue, green, red, near and shortwave infrared, and thermal infrared. It also includes a quality assessment band.\n"]]
