High-resolution methane emission estimates for North America derived from an inversion of the GEOS-Chem chemical transport model. The data is constrained by observations from the Greenhouse Gases Observing SATellite (GOSAT) and covers the period from 2010 to 2015. It was produced by the NASA Carbon Monitoring System (CMS) and distributed by the GES DISC.
Use Cases
- Analyzing spatial and temporal patterns of methane flux across North America using the gridded emission estimates.
- Validating bottom-up methane inventories by comparing them against the top-down, satellite-constrained model outputs.
- Studying seasonal and interannual variability in methane sources over the 2010-2015 period.
- Integrating the flux estimates as prior or validation data in other atmospheric transport models.
Strengths
- Data is optimized with satellite observations from GOSAT, providing an independent constraint on surface fluxes.
- Covers a multi-year period (2010-2015) for analyzing temporal trends.
- Provides high-resolution regional information for North America within a global context.
Limitations
- The dataset is temporally stale, with the last update in 2015 and no subsequent years.
- Uncertainty estimates for the flux inversions are not explicitly described in the provided information.
- Spatial resolution and specific row/column counts are unknown, limiting precise assessment of granularity.
Provenance
- Source
- NASA Carbon Monitoring System (CMS), distributed via NASA's GES DISC.
- Collection Method
- Inversion of the GEOS-Chem chemical transport model constrained by GOSAT satellite observations.
- Time Range
- 2010 to 2015
- Freshness
- Data is static, with a last updated date of 2015-12-31.
- Geography
- North America