Landsat GLS - Normalized Difference Vegetation Index NDVI

Feb 21, 2017
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Description:

Contains 30 meter resolution Landsat imagery from 1990-2010. Normalized Difference Vegetation Index (NDVI) is a compilation of visible and near infrared bands ranging in value from -1.0 to 1.0, used to measure the vigor of vegetation on Earth.



This Esri Landsat data service computes the normalized difference vegetation index (NDVI) from Landsat 2000 imagery. NDVI identifies vegetated areas and their condition while compensating for sun angle and some atmospheric influences.

NDVI is calculated from the visible and near-infrared light reflected by vegetation. Healthy vegetation absorbs most of the reflectance from the red band, and reflects a large portion of the near-infrared light. Unhealthy or sparse vegetation reflects more visible light and less near-infrared light. The standard NDVI formula is:

NDVI = (NIR – Red) / (NIR + Red)

Calculations of NDVI for a given pixel always result in a number that ranges from minus one (-1) to plus one (+1). For better visual analysis, Esri has colorized the NDVI data, where dark green is thick vigorous and brown represents sparse vegetation

Time Enabled: Yes. (Start Time Field: GLS_START90_10; End Time Field: GLS_END90_10)

Data Source: This image service was compiled from Global Land Survey (GLS) datasets: 2000. GLS datasets are created by the United States Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA) using Landsat images. These global minimal-cloud cover, orthorectified Landsat data products support global assessments of land-cover, land cover-change, and ecosystem dynamics such as disturbance and vegetation health.

Data Provided By:
U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), Esri Inc.
Map Service URL:
http://imagery.arcgisonline.com/arcgis/rest/services/LandsatGLS/NDVI_Colorized/ImageServer
Content date:
not specified
Citation:
ESRI Living Atlas of the World

http://doc.arcgis.com/en/living-atlas/item/?itemId=95ec649d93d94b18920d2bbad5711f4d
Spatial Resolution:
30 meter raster
Contact Organization:
U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), Esri Inc.
Contact Person(s):
not specified
Use Constraints:
United States Geological Survey (USGS), National Aeronautics and Space Administration (NASA), Esri Inc.
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FGDC Standard Metadata XML
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Original Metadata XML
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Dataset Type:
External Image Service (ArcGIS)
Tags:
normalized difference vegetation index, ndvi, landsat
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About the Uploader

PacificSouthwestRegion
Multiple Administrators with US Fish and Wildlife Service

This US Fish and Wildlife User Group is responsible for maintaining the Pacific Southwest Region Web Mapping Portal