Landsat 5 TM Collection 1 Tier 1 Annual NDWI Composite

LANDSAT/LT05/C01/T1_ANNUAL_NDWI
Dataset Availability
1984-01-01T00:00:00 - 2013-01-01T00:00:00
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("LANDSAT/LT05/C01/T1_ANNUAL_NDWI")
Tags
ndwi landsat usgs annual

Description

These Landsat 5 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.

The Normalized Difference Water Index (NDWI) is sensitive to changes in liquid water content of vegetation canopies. It is derived from the Near-IR band and a second IR band, ≈1.24μm when available and the nearest available IR band otherwise. It ranges in value from -1.0 to 1.0. See Gao (1996) for details.

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 most recent pixel as the composite value.

Bands

Bands

Name Pixel Size Description
NDWI 30 meters

Normalized Difference Water Index

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 in Earth Engine

var dataset = ee.ImageCollection('LANDSAT/LT05/C01/T1_ANNUAL_NDWI')
                  .filterDate('2011-01-01', '2011-12-31');
var colorized = dataset.select('NDWI');
var colorizedVis = {
  min: 0.0,
  max: 1.0,
  palette: ['0000ff', '00ffff', 'ffff00', 'ff0000', 'ffffff'],
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(colorized, colorizedVis, 'Colorized');