How can I find/purchase INSAR images for a specific region before and after a specific date?
For example, an earthquake happened in Pohang in South Korea in 2017. 11. 15, I want to find INSAR images for the region before and after that date.
InSAR is a technique that uses SAR images for a specific purpose, i.e. DEM generation. What you need is SAR images which stands for Synthetic Aperture Radar. There are some sensors in space now and I think only Sentinel-1 provides free data, which has a global coverage. You can access the data through this link:
https://scihub.copernicus.eu/dhus/#/home
Thank you very much for that, it helps a lot. Also, if you know other sources that could provide SAR images (even if I have to pay for it) that will be great.
You can search and download archive SAR data of ERS-1 & 2 and ENVISAT from EOLI-SA catalougue (https://earth.esa.int/web/guest/eoli). This data is free as well. I don't have enough information about the commercial SAR data but here are some websites that might be useful:
TerraSAR-X data can be searched from here:
https://www.intelligence-airbusds.com/en/4871-browse-and-order
For Cosmosky-med, there is an order form from this link:
http://www.e-geos.it/cosmo-skymed.html
Ahmed Dhahir Athab Thank you very much for that, it helped a lot. I found two SAR images for the same area at two different times. Now, I want to now the subsidence that happened in this area between the two images. What is the best way to do it? I never used inSAR before so any information about how to do that will be great.
Thank you
Mohamed Gaber : InSAR is far from being a a trivial task, but you can try the attached tutorial using SNAP (free software). Hope that will be a good start for you.
- Badges
- Science topic
- Similar topics
- Engineering
- Civil Engineering