S1tbx_snap

Hello everyone,
I am fledgling to Remote sensing but here i will try to introduce my basic questions i am trying to solve and will require your precious guidance and directions.

  1. I am in search of the best traces of paleolandscape features (back in Million of years) with the help of remote sensing images. After reading literature i came to know that drainage patterns and paleo rivers can well introduce and describe the depth or elevation history of the land.
  2. What would be the best satellite available data for free and can analyze the landscape features especially the paleo river.
  3. If i should go for the RTC_santinel-1 data, then how can i process or interpret the images in the SNAP application.
  4. What kind of graphBuild should i adopt for my analysis?
    your suggestions and guidance are really meaningful and valuable for me.
    Best Regards
    Wajid