The Advanced Global Atmospheric Gases Experiment (AGAGE) Data

• Main Authors: Ronald Prinn, Ray Weiss, Jgor Arduini, Tim Arnold, H. Langley DeWitt, Paul Fraser, Anita Ganesan, Jimmy Gasore, Christina Harth, Ove Hermansen, Jooil Kim, Paul Krummel, Zoë Loh, Chris Lunder, Michela Maione, Alistair Manning, Ben Miller, Blagoj Mitrevski, Jens Mühle, Simon O'Doherty, Sunyoung Park, Stefan Reimann, Matt Rigby, Takuya Saito, Peter Salameh, Roland Schmidt, Peter Simmonds, Paul Steele, Martin Vollmer, H.J. Ray Wang, Bo Yao, Dickon Young, Lingxi Zhou
• Format: Dataset
• Language: unknown
• Published: ESS-DIVE: Deep Insight for Earth Science Data 2022
• Subjects: • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON MONOXIDE > CARBON MONOXIDE SURFACE; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CHLORINATED HYDROCARBONS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CARBON TETRACHLORIDE; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLOROFLUOROCARBONS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > FLUOROCARBONS; EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > HALONS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > HYDROCHLOROFLUOROCARBONS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > HYDROFLUOROCARBONS; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > METHYL BROMIDE; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HYDROGEN COMPOUNDS > MOLECULAR HYDROGEN; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > NITROUS OXIDE; • EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > SULFUR COMPOUNDS > SULFUR HEXAFLUORIDE; CH4; N2O; CO; H2; CFC-11; CFC-12; CFC-13; CFC-113; CFC-114; CFC-115; HFC-23; HFC-32; HFC-125; HFC-134a; HFC-143a; HFC-152a; HFC-227ea; HFC-236fa; HFC-245fa; HFC-365mfc; HFC-43-10mee; HCFC-22; HCFC-124; HCFC-132b; HCFC-133a; HCFC-141b; HCFC-142b; H-1211; H-1301; H-2402; CH3Cl; CH2Cl2; CHCl3; CH3CCl3; CHClCCl2 (TCE); CCl2CCl2 (PCE); CCl4; SF6; SO2F2; NF3; CH3Br; PFC-14; PFC-116; PFC-218; PFC-318; high frequency data; time; DD (day); MM (month); YYYY (year); hh (hour); min (minute); monthly mean of baseline data; scale; unit; Ny-Ålesund; Trinidad; Medusa; Grim; Mace; Ragged Point; Gage; Ny Ålesund
• Online Access: https://search.dataone.org/view/ess-dive-67982cdf5762407-20230504T211449725219

In the ALE/GAGE/AGAGE global network program, continuous high frequency gas chromatographic measurements of four biogenic/anthropogenic gases (methane, CH4; nitrous oxide, N2O; hydrogen, H2; and carbon monoxide, CO) and several anthropogenic gases that contribute to stratospheric ozone destruction and/or to the greenhouse effect have been carried out at five globally distributed sites for several years. The program, which began in 1978, is divided into three parts associated with three changes in instrumentation: the Atmospheric Lifetime Experiment (ALE), which used Hewlett Packard HP5840 gas chromatographs; the Global Atmospheric Gases Experiment (GAGE), which used HP5880 gas chromatographs; and the present Advanced GAGE (AGAGE). AGAGE uses two types of instruments: a gas chromatograph with multiple detectors (GC-MD), and a gas chromatograph with mass spectrometric analysis (GC-MS). Beginning in January 2004, an improved cryogenic preconcentration system (Medusa) replaced the absorption-desorption module in the GC-MS systems at Mace Head and Cape Grim; this provided improved capability to measure a broader range of volatile perfluorocarbons with high global warming potentials. The Medusa GC-MS systems were subsequently used at other AGAGE stations (Trinidad Head, Barbados, American Samoa, Zeppelin, Jungfraujoch, and Goan) after the initial setup at Mace Head and Cape Grim. More information may be found at the AGAGE home page: https://agage.mit.edu/instruments. Compared to the previous version (https://data.ess-dive.lbl.gov/datasets/doi: doi:10.15485/1781803), the latest update (Agage_gcmd_gcms.data.2022_01_03.tar.gz) includes 6 months of new data through the end of September 2020. For a complete list of released compounds and used standard scales, please see “AGAGE_scale_2021_v1.pdf” file. Additional information can also be found on the AGAGE website (https://agage.mit.edu).