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Marziye

NDVI imagery

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I'm trying to find a good source of NDVI imagery, but I'm struggling to find proper high res imagery for Iran.

Does anyone have references to high res imagery (less than 10 meter for 4-6 years ago)?

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You may find such NDVI data via satellite imagery service called LandViewerThis tool has a vast database of satellite imagery that is publicly available and is updated on a regular basis. You may set any Index you need to analyze the area of your needs or create any Index of your own. Besides that there are already ready-made tools for obtaining multispectral indices, flexible processing of data on AOI, elementary clustering, using a raster calculator, visualization of scenes in 3D using digital elevation models, changes in territories based on multi-temporal multispectral analysis, as well as creating ready-made animations of changes in terrain and so much more. 

Here’s a brief guide to types satellite data that can be found on LandViewer.

High resolution satellite imagery:

  • SPOT 6, 7 (up to 1.5 m/pxl)
  • SPOT 5 (up to 2.5 m/pxl)
  • Pléiades 1A, 1B (up to 0.5 m/pxl)
  • KOMPSAT-2 (up to 1 m/pxl)
  • KOMPSAT-3А (up to 0.4 m/pxl)
  • KOMPSAT-3 (up to 0.5 m/pxl)
  • SuperView-1 (up to 0.5 m/pxl)

Both optical and radar data is available — with global coverage, and short revisiting period that varies from 2 to 5 days. 

Low & medium resolution imagery:

  • Landsat 4 - archive 1982-1993
  • Landsat 5 - archive 1984-2013
  • Landsat 7 - archive since 1999
  • MODIS - archive since 2012
  • Landsat 8 - archive since 2013
  • Sentinel-1 - archive since 2014
  • Sentinel-2 - archive since 2015

An example of such imagery can be seen below:

EWds2DV.png

 

https://eos.com/landviewer/?lat=33.39447&lng=52.68974&z=11&side=R&slider-id=LV-TEM4-MTYz-MDM3-MjAx-MzM2-NExH-TjAw&slider-b=Red,Green,Blue&slider-anti&slider-pansharpening&id=LV-TEM4-MTYz-MDM3-MjAx-MzM2-NExH-TjAw&b=NIR,Red&expression=(B5-B4)%2F(B5%2BB4)&anti&pansharpening

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