[ACG49-04] The OCO-3 Mission: Performance of the Snapshot Area Map and Target Mode Observations and Coincident Measurements with the OMPS and TROPOMI Air Quality Sensors
Keywords:Greenhouse Gas Monitoring, Carbon Cycle, International Space Station
CO2 emissions and air quality are closely linked, particularly over large urban agglomerates. OCO-3’s SAMs allows, for the first time, detailed studies of the relationship between CO2 emissions and air quality tracers over megacities. Compared to CO2, NO2 is short-lived and can serve as indicator for temporally and locally enhanced fossil fuel emissions, as well as longer-term trends of urban development and growth.
We present the current status of the OCO-3 mission, with focus on SAM performance to identify anthropogenic CO2 signals, and comparisons of OCO-3 SAM and Target Mode measurements of XCO2 with NO2 observations from NASA’s Ozone Monitoring and Profiler Suite on Suomi/NPP and JPSS-1 and ESA’s Sentinel-5 Precursor/TROPOMI. We present details on the performance of selected OCO-3 SAM and Target Mode observations, identify temporally and spatially near-coincident OMPS and TROPOMI measurements, and derive correlation statistics between CO2 and the air quality tracers, with the aim to establish coincidence data record over the OCO-3 life time.