1 September 2017 Calculation of mean solar exo-atmospheric irradiances of GF-4
Author Affiliations +
Abstract
Mean Solar Exo-atmospheric Irradiances (ESUN) is an important parameter to calculate the apparent reflectance based on the satellite sensor measured DN values. GF-4 was launched in 2015, the ESUN of this satellite has not been officially reported, however. To determine which solar spectrum curve is best fitted to GF-4, this study calculated the ESUN of GF-1 at first, by using six distinct solar spectrum curves and spectral response curves of GF-1. Next, the results were validated by comparing with the operational released values. It indicates that the World Radiation Center (WRC) solar spectrum is the most accurate and reliable solar spectrum curve for GF-1, with a total error less than 0.1% for 4 bands. Finally, the ESUN of GF-4 was calculated by making use of the WRC solar spectrum curve.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chunying Guo, Chunying Guo, Runhe Shi, Runhe Shi, Yunyun Zhou, Yunyun Zhou, Maosi Chen, Maosi Chen, } "Calculation of mean solar exo-atmospheric irradiances of GF-4", Proc. SPIE 10405, Remote Sensing and Modeling of Ecosystems for Sustainability XIV, 104050Z (1 September 2017); doi: 10.1117/12.2273119; https://doi.org/10.1117/12.2273119
PROCEEDINGS
8 PAGES


SHARE
KEYWORDS
RELATED CONTENT


Back to Top