Choose dataset: c13_ACG_ch4_aircraft_event_NOAA_unassimc13_ACT_ch4_aircraft_event_NOAA_unassimc13_ALK_ch4_aircraft_event_TU_assimc13_CON_ch4_aircraft_event_TU_assimc13_CRV_ch4_aircraft_event_NOAA_unassimc13_HIP_ch4_aircraft_event_NOAA_unassimc13_INX_ch4_aircraft_event_NOAA_unassimc13_MRC_ch4_aircraft_event_NOAA_unassimc13_NSA_ch4_aircraft_event_NOAA_unassimc13_PFA_ch4_aircraft_event_NOAA_assimc13_SGP_ch4_aircraft_event_NOAA_assimc13_TOM_ch4_aircraft_event_NOAA_unassim

Southern Great Plains, Oklahoma, United States

Latitude	variable	Go to interactive map
Longitude	variable
Elevation	variable
Site code	SGP
Dataset	c13_SGP_ch4_aircraft_event_NOAA_assim
Data provider	Sylvia Englund Michel
Partner(s)	Sebastien C. Biraud, and Margaret Torn and Lawrence Berkeley National Laboratory (LBNL)
Laboratory	NOAA Global Monitoring Laboratory

Figure 1. Longitude, latitude, and altitude information of specific aircraft profiles.

Figure 2. Residuals of posterior simulation (posterior - observed) for specific aircraft profiles, shown as a function of date and sample elevation. Units are permil (‰). Each dot represents one observation of δ13C-CH4.

Figure 3. Statistical summary of residuals of δ13C-CH4 for specific aircraft profiles, shown as a function of elevation. Units are permil (‰). The top figure shows the residuals with no data assimilation (Prior-Observed), and the bottom figure shows the post-assimilation residuals (Posterior-Observed). The black line represents mean residuals, the red lines represent the standard deviation of residuals, and the blue lines represent the upper and lower limits of model-data-mismatch (MDM), binned at every 1-km interval. Statistics in the top-left box of each subplot indicate averaged residuals (mu), a standard deviation of residuals (sigma), averaged model-data-mismatch (MDM), and chi-squared statistics (chi-squared).