The NASA Carbon Monitoring System (CMS) project and the Goddard Earth Sciences Data and Information
Services Center (GES DISC) are pleased to announce the release of the CMS (Carbon Monitoring System) Methane (CH4) Flux for North America (CMS_CH4_FLX_NA). The product is now available from the CMS_CH4_FLX_NA data product landing page.
The CMS
Methane (CH4) Flux for North America data set contains estimates of
methane emission in North America based on an inversion of the GEOS-Chem
chemical transport model constrained by Greenhouse Gases Observing
SATellite (GOSAT) observations . The nested approach of the inversion
enables large point sources to be resolved while aggregating regions
with weak emissions and minimizing aggregation errors. The emission
sources are separated into 9 different sectors as follows: Total,
Wetlands, Livestock, Oil/Gas, Waste (Landfills wastewater), Coal, Rice,
Open Fires, and Other. More details about the algorithm and error
characterization can be found in (Turner, Jacob, Wecht, et al. 2015).
The
NASA Carbon Monitoring System (CMS) is designed to make significant
contributions in characterizing, quantifying, understanding, and
predicting the evolution of global carbon sources and sinks through
improved monitoring of carbon stocks and fluxes. CMS will use the
full range of NASA satellite observations and modeling/analysis
capabilities to establish the accuracy, quantitative uncertainties, and
utility of products for supporting national and international policy,
regulatory, and management activities. CMS will maintain a global
emphasis while providing finer scale regional information, utilizing
space-based and surface-based data and will rapidly initiate generation
and distribution of products both for user evaluation and to inform
near-term policy development and planning.
More information about the CMS_CH4_FLX_NA data product can be found in the README document and Turner et al. 2015.
The CMS_CH4_FLX_NA data product can be accessed via the following methods:
References
Turner, A.J., D. J. Jacob, K. J. Wecht, J. D. Maasakkers, E. Lundgren, A.
E. Andrews, S. C. Biraud, H. Boesch, K. W. Bowman, N. M. Deutscher, M.
K. Dubey, D. W. T. Griffith, F. Hase, A. Kuze, J. Notholt, H. Ohyama, R.
Parker, V. H. Payne, R. Sussmann, C. Sweeney, V. A. Velazco, T.
Warneke, P. O. Wennberg, and D. Wunch (2015/06/30), Estimating global
and North American methane emissions with high spatial resolution using
GOSAT satellite data. Atmospheric Chemistry and Physics,
doi:10.5194/acp-15-7049-2016.
Questions or comments? Email the NASA GES DISC Help Desk:
gsfc-help-disc@lists.nasa.gov
