Joint Observation Estimates of XCO2

Kulawik, Susan S ; Worden, John R ; Eldering, Annmarie ; McDuffie, James L

关键词: CARBON DIOXIDE;    ESTIMATES;    BIAS;    ORBITING CARBON OBSERVATORY (OCO);    DATA CORRELATION;    ALBEDO;   

RP-ID  :  ARC-E-DAA-TN62449

学科分类：地球科学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Localized, correlated biases exist in OCO-2 (Orbiting Carbon Observatory-2) data. These biases do not improve with averaging. These have been noted by O'Dell (various OCO-2 telecons), Worden (2017), Kulawik (2018). We propose to utilize information from adjacent observations to reduce this bias. This works on the assumption that grouping the observations allows the system to find a better, global minimum. Pooling adjacent observations could allow more accurate characterization of interferents (e.g. retrieving additional albedo parameters), reducing entanglement with CO2.