• Observations and flux estimates for 2009
• Revised flux estimates for 2007 and 2008
• New Discrete data:
  • Measurements from weekly samples collected at the Instituto de Pesquisas Energéticas e Nucleares, Centro de Química e Meio Ambiente, Laboratorio de Química Atmosférica (IPEN-CQMA) sampling site at Arembepe, Bahia, Brazil (ABP_26D0, beginning October 2006) have been added.
  • Measurements from weekly samples collected at several sites from the Earth System Research Laboratory (ESRL) cooperative global air sampling network have been added; Arembepe, Bahia, Brazil (ABP_01D0, beginning October 2006); Baring Head, New Zealand (BHD_01D0, beginning October 1999); Hohenpeissenberg, Germany (HPB_01D0, beginning April 2006); Lulin, Taiwan (LLN_01D0, beginning August 2006); Lampedusa, Italy (LMP_01D0, beginning October 2006).
  • Discrete measurements collected at the Earth System Research Laboratory (ESRL) tower sites have been added, in part, to provide measurement coverage when data gaps exist in the quasi-continuous tower records. These sites are Argyle, Maine (AMT_01P0, beginning November 2008) in collaboration with University of Maine (John Lee), USDA Forest Service Northern Research Station (David Hollinger) and Harvard Univerisity (Steve Wofsy, Bill Munger); Boulder, Colorado (BAO_01P0, beginning August 2007) in collaboration with ESRL Physical Sciences Division (PSD); Park Falls, Wisconsin (LEF_01P0, beginning October 2006) in collaboration with Penn State University (Ken Davis), University of Wisconsin (Ankur Desai),USDA Forest Service Northern Research Station(Ron Teclaw and Dan Baumann); Beech Island, South Carolina (SCT_01P0, beginning August 2008) in collaboration with Savannah River National Laboratory and University of Georgia; Sutro Tower, San Francisco, California (STR_01P0, beginning October 2007) in collaboration with DOE Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory (Marc Fischer) ; West Branch, Iowa (WBI_01P0, beginning June 2007) in collaboration with University of Iowa (Charles Stanier); Walnut Grove, California (WGC_01P0, beginning October 2007) in collaboration with DOE Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory (Marc Fischer); and Moody, Texas (WKT_01P0, beginning July 2006) in collaboration with Blackland Research and Extension Center-Texas Agricultural Experiment Station (Onyango Okello).
• Updated Fossil Fuel emissions: In CarbonTracker, fossil fuel emissions are specified and not optimized by observations. However, changing the imposed fossil fuel fluxes can have an impact on optimized biosphere (and to a lesser extent, ocean) fluxes. Fossil fuel emissions in CT2010 have been changed according to revised global totals provided by CDIAC (see documentation) and new within country flux distributions provided by EDGAR.
• Revised Executive Summary.
• New map interface to the network of site for modeled and measured CO2 data.
• Access to previous CarbonTracker web releases is now available.

For a complete description about this release and previous releases, please see Version History.

How do flux estimates from CarbonTracker 2010 compare with previous releases?