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I am doing a project on change detection on remote sensory images over India. I need images of the same place on two different time instances. However i am only able to find images of certain place in a particular time (not selected by me).

  • Duplicate of opendata.stackexchange.com/questions/12833/…? – Jan Doggen Jun 5 '18 at 20:21
  • OK,that was my mistake(somehow i was unable to find similar question),however question is still unanswered. – vkSinha Jun 6 '18 at 4:59
  • Do you have any specific location you are looking for ? – PROBERT Jun 10 '18 at 14:55
  • Not necessarily , all i want is good data for change detection! – vkSinha Jun 11 '18 at 6:04
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Sentinel-2 provides repeat passes of most of the Earth's surface.

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If your location is within the United States, you can download imagery from the National Map Viewer.

  • No, I am from India. – vkSinha Jun 6 '18 at 4:54
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    Please edit your question to include that information. – csk Jun 7 '18 at 17:52
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You can access multiple years of Landsat data here: https://earthexplorer.usgs.gov

Sentinel data can be found here: https://earthexplorer.usgs.gov And this post explains how to access the data: https://gisgeography.com/how-to-download-sentinel-satellite-data/

Landsat has global coverage and decades of data, but you may want to be careful that the data you are accessing has the same satellite footprint / spatial resolution. The newest data, of higher ewsoluation, can be matched to the 30m resolution of older data by resampling the Imagery if you want to use a consistent spatial resolution.

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