Hi All,
I have recently started to working with Sentinel 1 data, precisely GRD-HD data.
And, the description on the ESA website says,
"Ground Range Detected (GRD) products consist of focused SAR data that has been detected, multi-looked and projected to ground range using an Earth ellipsoid model. Phase information is lost. The resulting product has approximately square spatial resolution pixels and square pixel spacing with reduced speckle at the cost of worse spatial resolution.
GRD products can be in one of three resolutions:
- Full Resolution (FR)
- High Resolution (HR)
- Medium Resolution (MR).
The resolution is dependent upon the amount of multi-looking performed. Level-1 GRD products are available in MR and HR for IW and EW modes, MR for WV mode and MR, HR and FR for SM mode."
As, I am new to SAR, so I am unable to understand what are further processing required to this?
Looking forward to the help.
Warm regards,
Sayan Mukhopadhaya
That depends on what you want the data for? say something about the intended purpose of using this data so others might help you with that.
Dear Ahmed Dhahir Athab , Thank you for the reply. I want to do LULC classification using Sentinel 1 and also find different vegetation within the agricultural fields.
Hi Sayan Mukhopadhaya
Sentinel-1 GRD product is ready to use. The LULC classification is not a straightforward process from SAR images as SAR data does not contain bands. You can use SNAP for polarization combination (VV - VH) which could be a starting point for your project.
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