지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.12
- 수록면
- 339 - 345 (7page)
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초록· 키워드
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Stable water vapor isotopes have been utilized as a tracer for studying atmospheric global circulations, climate change and paleoclimate with ice cores. Recently, since laser spectroscopy has been available, water vapor isotopes can be measured more precisely and continuously. Studies of water vapor isotopes have been conducted over the world, but it is the early stage in south Korea. For vapor isotopes study, a cryogenic sampling device for water vapor isotopes has been developed. The cryogenic sampling device consists of the dewar bottle, filled with extremely low temperature material and impinger connected with a vacuum pump. Impinger stays put in the dewar bottle to change the water vapor which passes through the inside of impinger into the solid phase as ice. The fact that water vapor has not sampled completely leads to isotopic fractionation in the impinger. To minimize the isotopic fractionation during sampling water vapor, we have tested the method using a serial connection with two sets of impinger device in the laboratory. We trapped 98.02% of water vapor in the first trap and the isotopic difference of the trapped water vapor between two impinger were about 20‰ and 6‰ for hydrogen and oxygen, respectively. Considering the amount of water vapor trapped in each impinger, the isotopic differences for hydrogen and oxygen were 0.33‰ and 0.06‰, respectively, which is significantly smaller than the precision of isotopic measurements. This work can conclude that there is no significant fractionation during water vapor trapping.
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참고문헌 (25)
참고문헌 신청
Craig H / 1965 / Stable isotopes in oceanographic studies and paleotemperature / Consiglio nazionale delle richerche : 9 ~ 130
Delattre H / 2015 / Deuterium excess in atmospheric water vapor of a Mediterranean coastal wetland : regional versus local signatures / Atmos Chem Phys 15(17) : 10167 ~ 10181
Galewsky J / 2007 / Measurements of water vapor D/H ratio from Mauna Kea, Hawaii, and implications for subtropical humidity dynamics / Geophys Res Lett 34(22) : L22808
Gupta P / 2009 / Demonstration of high-precision continuous measurements of water vapor isotopologues in laboratory and remote field deployments using wavelength-scanned cavity ring-down spectroscopy(WS-CRDS)technology / Rapid Commun Mass SP 23 : 2534 ~ 2542
T. J. Griffis / 2011 / Oxygen isotope composition of evapotranspiration and its relation to C 4 photosynthetic discrimination / Journal of Geophysical Research 116(G1)
Delattre H / 2015 / Deuterium excess in atmospheric water vapor of a Mediterranean coastal wetland : regional versus local signatures / Atmos Chem Phys 15(17) : 10167 ~ 10181
Galewsky J / 2007 / Measurements of water vapor D/H ratio from Mauna Kea, Hawaii, and implications for subtropical humidity dynamics / Geophys Res Lett 34(22) : L22808
Gupta P / 2009 / Demonstration of high-precision continuous measurements of water vapor isotopologues in laboratory and remote field deployments using wavelength-scanned cavity ring-down spectroscopy(WS-CRDS)technology / Rapid Commun Mass SP 23 : 2534 ~ 2542
T. J. Griffis / 2011 / Oxygen isotope composition of evapotranspiration and its relation to C 4 photosynthetic discrimination / Journal of Geophysical Research 116(G1)
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