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Data Radiometric Corrections?

Posted: Fri Sep 14, 2012 1:12 pm
by rahulchopra
Resourcesat-1:Ortho:LISS III data: 24m(v1.0)

Can you please let me know if the data of each band of a particular dataset is in terms of digital numbers (DN) or have radiometric corrections been performed. If so, is the data in terms of Surface Radiance or Surface Reflectance?

If Radiometric corrections have not been performed can one get information regarding
1. Gains and Bias of each band of the datasets
2. Sun Azimuth and Sun Elevation

Thanks
R Chopra

Re: Data Radiometric Corrections?

Posted: Tue Jun 18, 2013 8:02 pm
by rajeshcsrd
same question even i put up.

Re: Data Radiometric Corrections?

Posted: Thu Jun 20, 2013 2:48 pm
by sonal
1. It is Surface Reflectance and not the radiance.
2. Radiometric Corrections are not performed.
3. Sun angle , gain and bias values are normally in leader file of the scene which supplied with the product if you order through NDC (NRSC Data Center). The tiff format may not be having this metadata. But this is scene specific.
4. Conversion from Tiff to superstructure file format is not available