Themed Joint Session 2 Greenhouse Gas Emissions: Quantifying Uncertainties in Measurements and Models and Resultant Climate Impacts I

Monday, 11 January 2016: 11:00 AM-12:00 PM
Room 356 ( New Orleans Ernest N. Morial Convention Center)
Hosts: (Joint between the 18th Conference on Atmospheric Chemistry; the 28th Conference on Climate Variability and Change; the 19th Joint Conference on the Applications of Air Pollution Meteorology with the A&WMA; and the 22nd Conference on Applied Climatology )
Abhishek Chatterjee, USRA, Global Modeling and Assimilation Office, Greenbelt, MD and A. Scott Denning, Colorado State University, Department of Atmospheric Science, Fort Collins, CO

Over the last few years, significant advances have been made in both in situ and remote sensing technologies for measuring greenhouse gases (GHGs). The successful launch of global observing systems such as the Orbiting Carbon Observatory (OCO-2), the Soil Moisture Active Passive (SMAP) missions as well as deployment of localized surface networks and aircraft campaigns such as the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) and the Megacities Carbon Project, is starting to yield more information on both natural and anthropogenic sources than ever before. While these multiple observational platforms provide a significant potential for the monitoring of GHG emissions, more and more uncertainties are coming to light regarding our understanding of the global and regional budgets of GHGs, errors due to deficiency in atmospheric transport modeling (especially related to convection and vertical mixing), and identification and quantification of climate feedback sensitivities. This session solicits abstracts that address these uncertainties using models and observations and provide new insights on understanding GHG dynamics at various spatial (local to global) and temporal (sub-diurnal to decadal) scales. We encourage contributions on current and prospective observation technologies for GHGs, modeling studies to quantify budgets and/or uncertainties in GHG flux estimates, and evaluation and benchmarking of GHG estimates from Earth System Models using contemporary observations. We also encourage studies of perturbations to the carbon balance of terrestrial ecosystems in response to climate variability and change, especially as they combine models and observations or pertain to carbon-climate feedback. In addition, we seek contributions on improved quantification and understanding of underlying GHG emissions at the urban scale, policy issues related to GHG monitoring and regulation, and how the current state of the science is informing policy decisions.

11:00 AM
Developing a Carbon Observing System
Berrien Moore III, National Weather Center/Univ. of Oklahoma, Norman, OK
11:45 AM
Empirically Constrained Estimates of Alaskan Regional Net Ecosystem Exchange of CO2, 2012-2014
Jakob Lindaas, Harvard University, Cambridge, MA; and R. Commane, J. Benmergui, K. Luus, R. Y. W. Chang, C. E. Miller, J. M. Henderson, A. Karion, C. Sweeney, E. S. Euskirchen, D. Zona, W. C. Oechel, M. Ueyama, H. Iwata, Y. Harazono, J. C. Lin, B. C. Daube, J. V. Pittman, and S. C. Wofsy
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