How will a remote sensing data spectral library work if we work on MARS topographic analysis?
Thanks for your question
I am not RS expert but what I know is; the topographic analysis (if done through photographic RS/Passive RS) may need new definiations for spectral signatures in case we have something which is unknows to our planet but for the features similar to earth will have same spectral library characteristcs, and in case of SAR/Active remote sensing the topographic features could be extracted in the same way as over earth or even maybe better due to less atomospheric attanuation.
you can get more info from the following paper
http://www.mars.asu.edu/christensen/classdocs/McCord_MarsNearInfared_jgr_82.pdf
Cheers!
Dear Shahzad,
Thanks for the appreciation! I am glad to get a very true and simple answer. But RS satellites and associated sensors are very specific for earth objects behavior over the spectrum of light which will be very different for Mars. Lets wait for the space technologist to give more detail information.
Thanks for your understanding and further elaboration
for the sake of curiosity, does the light reached over Mars is different? I think the difference is only the atmospheric condition which may lead to some specific changes in spectral signature. lets wait together
Cheers!
Thanks agains!
Light spectrum will not change but spectral signature based on current sensor and satellite technology will need entire shift because the specific wavelength passing through atmosphere will change. For example we use very common NDVI as indicator of vegetation health on earth surface but what if Near InfraRed could not reach the surface of the MAR?
Lets wait together
Cheers!
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