Simulation of at-sensor radiance over land for proposed thermal channels of Imager payload onboard INSAT-3D satellite using MODTRAN model |
| |
Authors: | M R PANDYA D B SHAH H J TRIVEDI S PANIGRAHY |
| |
Affiliation: | 1.Space Applications Centre,Indian Space Research Organisation,Ahmedabad,India;2.N. V. Patel College of Pure and Applied Sciences,Vallabh Vidyanagar,India |
| |
Abstract: | INSAT-3D is the new generation Indian satellite designed for improved Earth observations through two payloads – Imager and Sounder. Study was conducted with an aim of simulating satellite level signal over land in the infrared channels of the Imager payload using a radiative transfer model MODTRAN. Satellite level at-sensor radiance corresponding to all four infrared channels of INSAT-3D Imager payload is obtained using MODTRAN and sensitivity of at-sensor radiance was inferred as a function of input parameters namely, surface temperature, emissivity, view angle and atmospheric water vapour, which is helpful in understanding the signal simulation scheme needed for retrieving a very critical parameter namely, land surface temperature. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|