Carbon Dioxide Information Analysis Center New Global Change Products

September 2006

Daily data from the United States Historical Climatology Network (USHCN) have been updated through 2005. These daily data include maximum temperature, minimum temperature, precipitation amount, snowfall, and snow depth from 1062 U.S. stations.

August 2005

Updates for the Fossil-Fuel CO₂ Emission Estimates are now available extending from 1751 - 2002!!

June 2005

Updates available through September 2004!! The ALE/GAGE/AGAGE Network (DB1001)

Carbon Dioxide, Hydrographic and Chemical Data Obtained During the R/V Maurice Ewing Cruise in the Atlantic Ocean WOCE Section A17 (January 4 - March 21, 1994) (NDP-084)

May 2005

Data updates through 2004!! for the Scripps Institution of Oceanography atmospheric CO₂ records (including the Keeling/Whorf Mauna Loa record).

April 2005

New!! Monthly atmospheric CO₂ mixing ratios from the NOAA/CMDL network

March 2005

Hourly and daily meteorological data for the ORNL FACE (Free-Air CO₂ Enrichment) research site have been updated through 2004.

New!! Monthly atmospheric ¹³C/¹²C isotopic ratios for 10 SIO stations

Update!! Global, hemispheric, and zonal temperature deviations derived from radiosonde records

February 2005

Monthly Records Updated through December 2004! Jubany Station, Antarctica

Introducing the CDIAC Communications Virtual Newsletter

Updated Current Greenhouse Gas Concentrations

January 2005

National Land Cover Data 1992 now available for the contiguous U.S. in one GIS coverage

Updates available through March 2004!! The ALE/GAGE/AGAGE Network (DB1001)

December 2004

740,000-year Deuterium Record in an Ice Core from Dome C, Antarctica

November 2004

Monthly surface air temperature time series area-averaged over the 30-degree latitudinal belts of the globe

October 2004

Data Revisions and Updates!! Atmospheric CO₂ concentrations derived from flask air samples at sites in the SIO Network

September 2004

Update!! Global, hemispheric, and zonal temperature deviations derived from radiosonde records

August 2004

Estimates of Annual Fossil-Fuel CO₂ Emitted for Each State in the U.S.A. and the District of Columbia for Each Year from 1960 through 2001

Methane, Nonmethane Hydrocarbons, Alkyl Nitrates, and Chlorinated Carbon Compounds in Whole-air Samples

July 2004

Data updated through 2003. Estimates of Monthly CO₂ Emissions and Associated ¹³C/¹²C Values from Fossil-Fuel Consumption in the U.S.A.

AGAGE record now includes methyl chloride and methyl bromide data!! The ALE/GAGE/AGAGE Network (DB1001)

June 2004

Data Revisions and Updates!! Updates through 2003 for the Scripps Institution of Oceanography atmospheric CO₂ records (including Mauna Loa).

Updates available through September 2003!! The ALE/GAGE/AGAGE Network (DB1001)

April 2004

Daily data from the United States Historical Climatology Network have been updated through 2002!! These data are available through a new graphical user interface.

April 2004

Daily data from the United States Historical Climatology Network These data are available through a new graphical user interface.

March 2004

Monthly Records Complete through December 2003! Jubany Station, Antarctica

CDIAC Fiscal Year 2003 Annual Report (PDF)

February 2004

Data updates through 2002 for four previously unpublished Scripps Institution of Oceanography atmospheric CO₂ records (Christmas Island, Baring Head, Kermadec Island, and La Jolla Pier).

January 2004

Hourly and daily meteorological data for the ORNL FACE (Free-Air CO₂ Enrichment) research site have been updated through 2003.

November 2003

CDIAC Communications, October 2003 - Issue No. 30 (PDF)

Updated Current Greenhouse Gas Information

Updates available through March 2003!! The ALE/GAGE/AGAGE Network (DB1001)

September 2003

δ¹³C in CO₂ from the CSIRO GASLAB Flask Sampling Network

Updated!! Current Greenhouse Gas Information

August 2003

New Update!! Global, hemispheric, and zonal temperature deviations derived from radiosonde records

Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994) (NDP-081)

Name that compound: The numbers game for CFCs, HFCs, HCFCs, and Halons

July 2003

Data Revisions and Updates!! Updates through 2002 for the Scripps Institution of Oceanography atmospheric CO₂ records.

Revised!! δ¹³C in CH₄ and CO, and deuterium in CH₄, in atmospheric samples from Niwot Ridge, Colorado, and Montaña de Oro, California, United States (DB1022)

Updates available through September 2002!! The ALE/GAGE/AGAGE Network (DB1001)

New Update!! CDIAC Fiscal Year 2002 Annual Report (PDF)

June 2003

Comparison of Inorganic Carbon System Parameters Measured in the Atlantic Ocean from 1990 to 1998 and Recommended Adjustments (CDIAC-140)

GLODAP Atlantic Ocean Atlas for carbon-related parameters

Estimates of Monthly CO₂ Emissions and Associated ¹³C/¹²C Values from Fossil-Fuel Consumption in the U.S.A.

ORNL FACE leaf area index (LAI) data sets

May 2003

Terrestrial Carbon Sequestration databases

Measurements of CH₄ mixing ratio and D/H and ¹³C/¹²C isotope ratios in atmospheric samples from two sites in the United States (DB1022)

April 2003

CSIRO GASLAB Network: Individual Flask Measurements of Atmospheric Trace Gases (DB1021)

March 2003

Cloud Climatology for Land Stations Worldwide, 1971-1996 (NDP-026D)

Atmospheric H₂ Concentrations from the CSIRO GASLAB Flask Sampling Network

New Update!! Publications, Presentations, and Awards (CDIAC-101)

February 2003

Atmospheric CO Concentrations from the CSIRO GASLAB Flask Sampling Network

Historical CO₂ record from the Vostok ice core

FACTS II (Rhinelander, Wisconsin) FACE CO₂ Data

January 2003

Atmospheric CH₄ Concentrations from the CSIRO GASLAB Flask Sampling Network

December 2002

Updates available through March 2002!! The ALE/GAGE/AGAGE Network (DB1001)

Atmospheric CO₂ Concentrations from the CSIRO GASLAB Flask Sampling Network

November 2002

Carbon Dioxide, Hydrographic and Chemical Data Obtained During the Nine R/V Knorr Cruises Comprising the Indian Ocean CO₂ Survey (WOCE Sections I8SI9S, I9N, I8NI5E, I3, I5WI4, I7N, I1, I10, and I2; December 1, 1994 - January 22, 1996) (NDP-080)

CDIAC announces its new World Directory User Interface. This web-accessible interface allows CDIAC data users to add themselves or modify their existing record in the CDIAC World Directory. E-mail validation is routine for user modification. CDIAC also provides a "blind" e-mail service to facilitate consensual communication between researchers, educators, students, and others sharing a common interest in global climate change.

October 2002

Carbon Flux to the Atmosphere from Land-Use Changes

Current Greenhouse Gas Information - Revised and updated!

Area and Carbon Content of Sphagnum Since Last Glacial Maximum

September 2002

Historic CH₄ records from Antarctic and Greenland ice cores, Antarctic firn data, and archived air samples from Cape Grim, Tasmania

Bulls, New Zealand, FACE Yield Data

August 2002

Monthly surface air temperature time series area-averaged over the 30-degree latitudinal belts of the globe

CDIAC has put online data from an intercomparison of ecosystem models from the Throughfall Displacement Experiment (TDE) at ORNL. The project compares model estimates of evapotranspiration, net ecosystem carbon exchange, production, respiration, and growth.

New Update!! CDIAC Fiscal Year 2001 Annual Report (PDF)

Soil Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis (This carbon sequestration database quantifies potential soil carbon sequestration rates due to agricultural management techniques.)

Monthly Records Complete through December 2001! Jubany Station, Antarctica

July 2002

Data Revisions and Updates!! Updates through 2001 for the Scripps Institution of Oceanography atmospheric CO₂ records.

New Updates through September 2001 !! The ALE/GAGE/AGAGE Network (DB1001)

June 2002

Updates through December 2001!! Scripps Mauna Loa Atmospheric CO₂ Record (NDP001)

CO₂-related data (measurements from the FACE rings and an ambient monitoring station, wind speed and direction, and solar angle) from the ORNL FACE research site for the years 1999-2002

May 2002

CDIAC Communications, March 2002 - Issue No. 29 (PDF)

Keeling Receives National Medal of Science (5/9/2002)

April 2002

Global, hemispheric, and zonal temperature deviations derived from radiosonde records

New Update!! Annual and Seasonal Global Temperature Deviations in the Troposphere and Low Stratosphere, 1958-2001 (NDP-008)

March 2002

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Meteor Cruise 28/1 in the South Atlantic Ocean (WOCE Section A8, March 29 - May 12, 1994) (NDP-079)

Recently Enhanced!! Tropical Africa: Land Use, Biomass, and Carbon Estimates for 1980 (NDP-055)

February 2002

New Update!! Graduate Student Theses Supported by DOE's Environmental Sciences Division: Fiscal Year 2001 Update (CDIAC-136)

New Update through March 2001!! The ALE/GAGE/AGAGE Network (DB1001)

December 2001

CDIAC oceanographer cruises and collects CO₂ samples in the Antarctic aboard the R.S.V. Aurora Australis Voyage 3 in the Southern Ocean - View Pictures

Data Revisions and Updates!! Updates through 2000 for the Scripps Institution of Oceanography atmospheric CO₂ records.

New Update!! Publications, Presentations, and Awards (CDIAC-101)

November 2001

Presentations and abstracts from the recent DOE Terrestrial Science Team Meeting (Argonne National Laboratory, October 29-31, 2001)

New Update!! Global and hemispheric temperature anomalies--land and marine instrumental records

October 2001

New Update!! A Databank of Antarctic Surface Temperature and Pressure Data (NDP-032)

Weather-related data (air temperature, relative humidity, solar radiation, soil temperature, precipitation, wind) from the ORNL FACE (Free-Air CO₂ Enrichment) research site for the years 1999-2002

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Knorr Cruises 138-3, -4, and -5 in the South Pacific Ocean (WOCE Sections P6E, P6C, and P6W, May 2 - July 30, 1992) (NDP-077)

New Update!! Fiscal Year 2000 Annual Report (PDF)

September 2001

Tropospheric and Lower Stratospheric Temperature Anomalies Based on Global Radiosonde Network Data

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Oak Ridge National Laboratory

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