Title :
A method for physically fusing XCO2 measurements retrieved from SCIAMACHY and GOSAT
Author :
Tianxing Wang ; Jiancheng Shi ; Yingying Jing
Author_Institution :
State Key Lab. of Remote Sensing Sci., Beijing Normal Univ., Beijing, China
Abstract :
Space-based monitoring of atmospheric CO2 is very crucial for global carbon cycle studies and even global change. In this study, a method for physically fusing SCIAMACHY and GOSAT CO2 measurements has been proposed by fully considering the averaging kernel and spatio-temporal variations as well as the CO2 retrieval errors. The results revealed that the average global coverage of ACOS and BESD is around about 0.56% and 0.27% respectively at a daily scale. The monthly-mean coverage of such products accounts about 5.66% and 4.62% respectively. While spatial coverage of fused XCO2 can reach up to 0.76% and 8.51 % on daily and monthly scale respectively. These findings in this paper proved the effectiveness of the proposed method.
Keywords :
air pollution measurement; atmospheric techniques; remote sensing; ACOS average global coverage; BESD average global coverage; GOSAT carbon dioxide measurement; SCIAMACHY carbon dioxide measurement; atmospheric carbon dioxide space-based monitoring; carbon dioxide retrieval errors; global carbon cycle; Accuracy; Atmospheric measurements; Atmospheric modeling; Carbon; Instruments; Kernel; Pollution measurement; CO2; GOSAT; SCIAMACHY; fusion;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723546
