CESM Chemistry Climate Working Group
The goal of the Chemistry-Climate WG is to continue the development of the representation of chemistry in the CESM and to further our understanding of the interactions between chemistry and climate. Scientific motivations include advancing knowledge on past, present and future atmospheric composition, interactions between atmospheric composition and the Earth System, stratosphere-troposphere coupling, and impacts of global composition and climate on air quality.
The chemistry is now fully incorporated into the CESM, e.g. a super-fast chemistry version and a full troposphere chemistry version. CAM-chem was used extensively to perform 1850-2100 (all RCPs) simulations to define atmospheric composition (and deposition fields) for use in CCSM4. CAM-Chem can also be run as an offline version using GEOS5 and MERRA data to support aircraft campaigns and other observations and with stratospheric chemistry.
- Related papers including model results from CAM-Chem
Upcoming Meetings
Land Model & Biogeochemistry, Chemistry Climate, Societal Dimensions Working Groups, 27 February - 2 March, 2012, NCAR, Boulder, CO [participants]
17th Annual CESM Workshop
The 17th Annual CESM Workshop will held at The Village at Breckenridge, Breckenridge, CO, 18 - 21 June 2012. [register] [event details] [draft agenda] [questions]
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Review archives of past meeting agendas, reports, and presentations.
Topics of Development and Research
- testing the representation of chemistry in CESM and evaluating existing and forthcoming CAM configurations. These configurations include:
- CAM5 physics, especially the coupling of interactive gas-phase chemistry and the modal aerosols and the impact of the new planetary-boundary layer;
- improved modeling capabilities for new chemistry to allow for better process understanding. Current applications include isoprene oxidation mechanisms and tropospheric halogen chemistry.
- the extension of the CAM model top to contain the whole stratosphere, following the MACCM framework developed as a precursor to WACCM;
- using CESM with the Data Assimilation Research Testbed (DART)
Community Support
- contributions to CCMVal2/3 , GEO-MIP, POLMIP, CMIP5, ACC-MIP.
- offline modeling in support of field campaigns (e.g., INTEX-B, POLARCAT).
- Model Chemistry Evaluation Program (MCEP)
[download description] [download package - Registration required] - Introduction on how to run CESM with Chemistry: Tutorial, Roadmap and Changing Chemistry
- Details about the Chemistry Preprocessor
For additional information, contact the Chemistry Climate Working Group Liaison, Simone Tilmes.
Chem-WG Community Liaison:
Simone Tilmes is the Chem-WG Liaison. [email]
Co-Chair Contact Information:
Dr. Arlene Fiore
Department of Earth and Environmental Sciences, Columbia University, Lamond-Doherty Earth Observatory, 61 Route 9W, Palisades, NY 08542-0308
Tel: 845-365-8580, Fax: 845-365-8157, e-mail: amfiore@ldeo.columbia.edu
Dr. Peter G. Hess
Cornell University, 2140 Snee Hall, Department of Earth and Atmospheric Sciences, Ithaca, NY 14853
e-mail: pgh25@cornell.edu
Dr. Jean-Francois Lamarque
NCAR-ACD, P.O. Box 3000, Boulder, CO 80307-3000
Tel: 303-497-1495, Fax: 303-497-1700, e-mail: lamar@ucar.edu
CESM Project
The Community Earth System Model (CESM) is a fully-coupled, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.
CESM is sponsored by the National Science Foundation (NSF) and the U.S. Department of Energy (DOE). Administration of the CESM is maintained by the Climate and Global Dynamics Division (CGD) at the National Center for Atmospheric Research (NCAR).
Related
Contact Information
- Email: CESM Working Group Co-Chairs
- Email: CESM Contact
- Email: Chem-WG Members
- Subscribe to Chem-WG List
Related Publications
- Related papers including model results from CAM-Chem
- Recent Publications