https://repository.kopri.re.kr/handle/201206/5299 Wed, 22 Apr 2026 18:02:48 GMT 2026-04-22T18:02:48Z https://repository.kopri.re.kr/handle/201206/8361 Title: 2009년부터 2012년까지 남극해 태평양 구간 및 아문젠해의 온실기체 Authors: Hahm, Doshik; Shin, Hyoung Chul; Park, Kyung-Ah; Lee, Kyung Eun; Rhee, Tae Siek; Lee, Sang H.; Kwon, Young Shin; Jeaon, Hyunduck Abstract: The ocean plays a considerable role in the budget of long-lived greenhouse gases in the atmosphere: as a sink for CO2 and a source for CH4 and N2O. The high latitude of the Southern Ocean is particularly important as the change in the sea ice extent and melting glaciers will influence the ecological and physical settings that govern the content and flux of dissolved gases in seawater. In order to investigate the impact of the change in the cryospheric environment to the fluxes of these trace gases, we visited the Pacific sector of the Southern Ocean and the Amundsen Sea during the austral summer between 2009 and 2012. In the open ocean, CO2 was mostly undersaturated while N2O and CH4 were supersaturated in seawater. These typical features were reversed in the sea-ice region except for N2O. In the Amundsen Sea polynya, CO2 and CH4 were depleted in seawater while dissolved N2O was supersaturated with respect to the atmosphere.ea ice extent and melting glaciers will influence the ecological and physical settings that govern the content and flux of dissolved gases in seawater. In order to investigate the impact of the change in the cryospheric environment to the fluxes of these trace gases, we visited the Pacific sector of the Southern Ocean and the Amundsen Sea during the austral summer between 2009 and 2012. In the open ocean, CO2 was mostly undersaturated while N2O and CH4 were supersaturated in seawater. These typical features were reversed in the sea-ice region except for N2O. In the Amundsen Sea polynya, CO2 and CH4 were depleted in seawater while dissolved N2O was supersaturated with respect to the atmosphere. Sun, 01 Jan 2012 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/8361 2012-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/6349 Title: Atmospheric histories and global emissions of the anthropogenic hydrofluorocarbons HFC-365mfc, HFC-245fa, HFC-227ea, and HFC-236fa Authors: M.K. Vollmer; m. Rigby; P.B. Krummel; P.K. Salameh; C.M. Harth; Rhee, Tae Siek; P.G. Simmonds; P.J. Fraser; R.F. Weiss; J. Kim; S. ODoherty; J. Muhler; S. Reimann; B.R.Miller Abstract: We report on ground­based atmospheric measurements and emission estimates of the four anthropogenic hydrofluorocarbons (HFCs) HFC­365mfc (CH3CF2CH2CF3, 1,1,1,3,3­pentafluorobutane), HFC­245fa (CHF2CH2CF3, 1,1,1,3,3­pentafluoropropane), HFC­227ea (CF3CHFCF3, 1,1,1,2,3,3,3­heptafluoropropane), and HFC­236fa (CF3CH2CF3, 1,1,1,3,3,3­hexafluoropropane). In situ measurements are from the global monitoring sites of the Advanced Global Atmospheric Gases Experiment (AGAGE), the System for Observations of Halogenated Greenhouse Gases in Europe (SOGE), and Gosan (South Korea). We include the first halocarbon flask sample measurements from the Antarctic research stations King Sejong and Troll. We also present measurements of archived air samples from both hemispheres back to the 1970s. We use a two­dimensional atmospheric transport model to simulate global atmospheric abundances and to estimate global emissions. HFC­365mfc and HFC­245fa first appeared in the atmosphere only ∼1 decade ago;they have grown rapidly to globally averaged dry air mole fractions of 0.53 ppt (in parts per trillion, 10？12) and 1.1 ppt, respectively, by the end of 2010. In contrast, HFC­227ea first appeared in the global atmosphere in the 1980s and has since grown to ∼0.58 ppt. We report the first measurements of HFC­236fa in the atmos,3­pentafluoropropane), HFC­227ea (CF3CHFCF3, 1,1,1,2,3,3,3­heptafluoropropane), and HFC­236fa (CF3CH2CF3, 1,1,1,3,3,3­hexafluoropropane). In situ measurements are from the global monitoring sites of the Advanced Global Atmospheric Gases Experiment (AGAGE), the System for Observations of Halogenated Greenhouse Gases in Europe (SOGE), and Gosan (South Korea). We include the first halocarbon flask sample measurements from the Antarctic research stations King Sejong and Troll. We also present measurements of archive Sat, 01 Jan 2011 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/6349 2011-01-01T00:00:00Z