Final Technical Report for Department of Energy Award DE-SC0006625, “Predictability of the carbon-climate system on seasonal to decadal time scales.”
- Univ. of California, Berkeley, CA (United States)
The project aims to investigate the feasibility of advancing our understanding of the carbon cycle, using a carbon-weather data assimilation system that updates the modeled carbon dioxide concentration and atmospheric circulation every six hours using CO2 data (from the OCO2 satellite) and weather data. At the core of the system is the DOE-NCAR-CAM5fv global circulation model coupled to the National Center for Atmospheric Research's Data Assimilation Testbed, running an ensemble of 30 models. This combination provides realistic vertical carbon dioxide gradients and conservation of dry air mass. A global four-dimensional distribution of atmospheric CO2 concentration is produced. Our results show (1) that OCO2 total precipitable water data are reliable and provide valuable uncertainty information for the OCO2 data assimilation; and (2) that our approach is a promising method for monitoring national carbon dioxide emissions.
- Research Organization:
- Univ. of California, Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- National Center for Atmospheric Research (NCAR)
- DOE Contract Number:
- SC0006625
- OSTI ID:
- 1336913
- Report Number(s):
- DOE-UCB-0006625
- Country of Publication:
- United States
- Language:
- English
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