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LandsatGLS/NDVI_Colorized (ImageServer)

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Service Description:

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.



Name: LandsatGLS/NDVI_Colorized

Description:

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.



Single Fused Map Cache: false

Extent: Initial Extent: Full Extent: Time Info: Pixel Size X: 2.694945852358564E-4

Pixel Size Y: 2.694945852358564E-4

Band Count: 3

Pixel Type: U8

RasterFunction Infos: N/A

Mensuration Capabilities: None,Basic,Base-Top Shadow Height

Has Histograms: false

Has Colormap: false

Min Scale: 0

Max Scale: 0

Copyright Text: United States Geological Survey (USGS), National Aeronautics and Space Administration (NASA), Esri Inc.

Service Data Type: esriImageServiceDataTypeProcessed

Min Values: N/A

Max Values: N/A

Mean Values: N/A

Standard Deviation Values: N/A

Object ID Field: OBJECTID

Fields: Raster Attribute Table: false

Default Mosaic Method: ByAttribute

Allowed Mosaic Methods: ByAttribute,NorthWest,Center,LockRaster,Nadir,Viewpoint,Seamline,None

SortField: GLS_END_DATE

SortValue: 3000/12/12

Mosaic Operator: First

Default Compression Quality: 80

Default Resampling Method: Bilinear

Max Record Count: 1000

Max Image Height: 4100

Max Image Width: 15000

Max Download Image Count: 20

Max Mosaic Image Count: 20

Allow Raster Function: true

Raster Type Infos: Has Raster Attribute Table: false

Edit Fields Info: null

Ownership Based AccessControl For Rasters: null

Child Resources:   Info   Key Properties

Supported Operations:   Export Image   Query   Identify   Measure