https://earthexplorer.usgs.gov/

http://gisgeography.com/free-satellite-imagery-data-list/

http://sro.sussex.ac.uk/51570/1/Tuck_et_al_2014_MODISTools_-_downloading_and_processing_MODIS_remotely_sensed_data_in_R_EcolEvol.pdf

i am not expert in this field.

Dear Rajkumar,

You may want to check the data generated by the MISR instrument, which is on the same NASA TERRA platform as the first MODIS instrument. MISR offers 36 data channels (9 cameras with 4 spectral channels each), and has been operational since late February 2000. For information on the mission and instrument, check

https://www-misr.jpl.nasa.gov

To get MISR data, visit

https://eosweb.larc.nasa.gov/project/misr/misr_table

Lastly, there is an active group of researchers working on Arctic issues with MISR data: search for Prof. Anne Nolin (Oregon State University (OSU)) and her colleagues as a starting point.

Cheers, Michel.

For Landsat Imagery:

https://earthexplorer.usgs.gov/

Thank you so much all for all these info. Much appreciated.

Regards,

Kamaljit