Soil Moisture Mapping

abranidrees · February 4, 2021, 9:59am

Haloo Everyone!!

I am trying to process soil Moisture in snap 8.0 on sentinel 1 dataset. As the sentinel 1 data having polarization (VV, VH) I have applied IEM muti-polarization inversion Model on dataset as you see in attachment while doing an error is occured, it need sigma HH band to process this model, while the sentinel 1 don’t have sigma HH band . Is this model is only for Radarsat dataset . Can anyone help me out?

ABraun · February 4, 2021, 10:01am

yes, multi-pol means you need HH/HV/VH/VV polarizations, while Sentinel-1 only has VV and VH.

You can test with ALOS quad-pol data (some are available here: https://search.asf.alaska.edu)

abranidrees · February 6, 2021, 7:15am

Thank you, sir,
I am a student of BS-Space Science. I am doing my research project on soil Moisture Mapping.
But ALOS quad-pol data is not available for the present year. Can you recommend any Opensource dataset?

ABraun · February 6, 2021, 9:07am

I’m afraid there is no freely available quad-pol data at the moment, only from commercial sensors (TerraSAR-X, COSMO-SkyMed, Radarsat-2,…).

abranidrees · February 6, 2021, 9:47am

Can we Map soil moisture on SNAP with programming using any specific dataset? one more thing can we map soil moisture on another image processing software?

abranidrees · February 6, 2021, 10:09am

Can you suggest me any idea to do this work with sentinal-1 dataset?

ABraun · February 6, 2021, 10:46am

soil moisture mapping is quite a challenging task, especially for unexperienced users.

FAQ: I want to extract soil moisture from SAR data

We have lots of topics on this, and in order to keep this forum clean, I will close here and kindly ask you to read the discussions in the following topics (and continue wherever your question fits best).