Amit Angal

TL;DR: In this article, an enhanced C6+ calibration of the MODIS data set which includes an additional polarization correction (PC) to compensate for the increased polarization sensitivity of MODIS Terra since about 2007, as well as detrending and Terra-Aqua cross-calibration over quasi-stable desert calibration sites.

TL;DR: Radiometric cross-calibration of the Landsat 7 Enhanced Thematic Mapper Plus (ETM+) and the Terra Moderate Resolution Imaging Spectroradiometer (MODIS) sensors was performed using near-simultaneous observations over the Libya 4 pseudoinvariant calibration site in the visible and near-infrared spectral range to compensate the spectral response differences of multispectral sensors.

TL;DR: Two approaches have been used to derive the time-dependent RVS for MODIS RSB, and the derived time-independent RVS, implemented in C6, makes an important improvement to the quality of the MODIS L1B products.

TL;DR: In this article, the authors focus on monitoring the long-term on-orbit calibration stability of the Terra MODIS and the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) sensors using the CEOS reference standard test sites (Libya 4, Mauritania 1/2, Algeria 3, Libya 1, and Algeria 5).

TL;DR: An argument that PICS can be used more extensively for absolute calibration is built and suggested that absolute calibration using PICS is possible on a broad scale and can lead to improved on-orbit calibration capabilities for optical satellite sensors.