The relationship between atmospheric greenhouse gas (GHG) measurements and surface carbon, energy and water fluxes, is fundamental to predicting their future evolution in a changing climate. This session focuses on modeling frameworks (top-down and bottom-up) that investigate land and ocean GHG exchange processes using observational platforms such as, localized surface networks and airborne campaigns, active and passive remote-sensing missions. We invite contributions on: 1) estimation of land and ocean GHG budgets and reconciliation between different modeling frameworks; 2) assessment of the response of land and ocean carbon cycle to extreme events and disturbances; 3) innovative use of remote sensing, isotopes, & novel atmospheric tracers (e.g. SIF, CO, COS, APO) to improve mechanistic understanding, 4) examination of the role of errors (e.g. atmospheric transport) on estimated fluxes and associated budgets; and, 5) OSSEs targeting the optimization of future observing systems to advance our understanding of the carbon cycle and carbon-climate feedbacks.

• B - Biogeosciences
• GC - Global Environmental Change
• OS - Ocean Sciences