Data Radiometric Corrections?

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Joined: Fri Sep 14, 2012 12:59 pm

Data Radiometric Corrections?

Post by rahulchopra » Fri Sep 14, 2012 1:12 pm

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

R Chopra

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Joined: Tue Jun 18, 2013 7:53 pm

Re: Data Radiometric Corrections?

Post by rajeshcsrd » Tue Jun 18, 2013 8:02 pm

same question even i put up.

Posts: 258
Joined: Mon Aug 01, 2011 1:53 pm

Re: Data Radiometric Corrections?

Post by sonal » Thu Jun 20, 2013 2:48 pm

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

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