A41I-0197
Lower-Tropospheric CO2 from ACOS-GOSAT
Thursday, 17 December 2015
Poster Hall (Moscone South)
Susan Sund Kulawik, Bay Area Environmental Research Institute Moffett Field, Moffett Field, CA, United States, Chris O'Dell, Colorado State University, Fort Collins, CO, United States, Vivienne Payne, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and Sebastien Biraud, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Abstract:
We introduce a new ACOS-GOSAT science research product, the lowermost tropospheric CO2 (LMT-CO2). The LMT-CO2 is a derived CO2 column from ~1-2 km and a complementary product to the total column average (XCO2). We show the seasonal cycle from LMT-CO2 shows an earlier broader peak as compared to the standard XCO2 product in agreement with aircraft, tower, surface, and TCCON observations. Joint assimilation of LMT-CO2 and XCO2 with their sensitivity and errors shows enhanced capability versus XCO2 assimilation regarding degrees of freedom and resolution of features. This LMT-CO2 product enhances the science return from GOSAT and OCO-2.
