CMS: Atmospheric CO2 and C Isotopes, Fossil Fuel Contributions, California, 2014-2015

This dataset provides measurements of atmospheric CO2 concentrations, carbon isotopes d13C and D14C, and fossil fuel CO2 (ffCO2) estimates from nine observation sites in California over three month-long campaigns in separate seasons of 2014-2015. ffCO2 was quantified based on the CO2 concentration and D14C. Simulations of ffCO2 at the sites and times of the observations were conducted with the Vulcan v2.2 fossil fuel emissions estimate for 2002 and the Weather Research and Forecasting - Stochastic Time-Inverted Lagrangian Transport (WRF-STILT) atmospheric model. The observed and simulated ffCO2 were incorporated into Bayesian inverse estimates of ffCO2 to calculate California's ffCO2 emissions during the campaign period.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 22, 2026, 21:34 (UTC)
Created April 1, 2025, 15:13 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 6f9973f5-d966-4c21-bbd7-3a3b0be75330
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1641
license https://www.usa.gov/government-works
modified 2026-06-15T22:16:00Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 5115640a67efae44d99fda65d2289afe753a02f0a2d2e06ebb9105e979cf7394
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -124.151, "NorthBoundingCoordinate": 41.055, "EastBoundingCoordinate": -117.257, "SouthBoundingCoordinate": 32.867}]]
temporal 2014-05-01/2015-02-16
theme {"Earth Science"}