Soil Moisture Mapping Using S1_SLC product and s1tx

s1tbx
#13

there is no direct transfer of backscatter intensity to soil moisture. Please go through the suggestions made here: Soil moisture mapping using Sentinel-1-Data and SNAP? and here Soil moisture identification -Sentinel

#14

This could be helpful as well,

How to Download Daily Soil Water Index from Copernicus Global Land Service

Determination of Soil Moisture for a Region Using open Source Data

#15

Thank you for information

Can you help me to find paper or reference to calculate soil moisture with GRH product.

Regards

#16

@johngan has given very valuable comments and literature references here: Soil moisture identification -Sentinel

#17

Thanks for your response

#18

Sir, how to kind of tools to make this picture?

image
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graphic of backscatter and moisture

Extracted backscatter values by using SNAP toolbox
#19

you need a shapefile with attributes (moisture), import it in SNAP and use the correlative plot view.

#20

how can i get shapefile sir?

#21

measure soil moisture in your study area at the time when the image is acquired and locate the meastrements by a GPS device, for example.

#22

Yes sir, I have these data
But i don’t know how to import these data to SNAP

#23

Why not try this one - https://land.copernicus.eu/global/themes/Vegetation . This is verified product.

For SHP files import just do File->Import->VectorData->ESRI Shapefile

Soil moisute with Sentinel-1 / SAR and ground sensors
#24

Hi @hriston_bg,
But when I search Surface Soil Moisture, I don’t find my study area because Spatial information is only in Europe

#25

Hi @ABraun, how to use the correlative plot?

#26

@Andiray I didn’t know that your area is outside EU. Sorry.

#27

Hi @hriston_bg, thanks for your response.

#28

@Andiray You may try Vegetation Condition Index as a proxy for SM.
The global product is here - https://land.copernicus.eu/global/products/vci

#29

First you need a shapefile with numerical values (hoehe_cm in my case)

grafik
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Load it into SNAP and overlay it with your SAR data

grafik
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Then open the correlative plot view grafik

Select the point shapefile and the attribute and correlate the raster values with the point information

grafik
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1 Like
How to Read Data Sentinel 1A
#30

Hi @ABraun, how to make this shapefile? I only have ground data but I don’t know how to make it to shapefile.
I have coordinate point and value of soil moisture in ground data. I’m so sorry. I don’t have basic in SNAP

Thanks

#31

SNAP can import csv files when they are formatted correctly.
If not, load the coordinates (and moisture attribute) in a GIS and export it as a shapefile. There are lots of tutorials on this around.

#32

Okay sir @ABraun, I will learn about it