Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Seasonal variation in deuterium and oxygen-18 concentrations of water vapor and precipitation over the Antarctic
Autor Schwarz, G.; Kowski, P.; Gernandt, H.;
Journal / Serie Isotopes in Environmental and Health Studies
Erscheinungsjahr 1997
Department HDG;
Band/Volume 33
Heft 1-2
Sprache englisch;
Abstract D and 18O distributions were investigated in Antarctic precipitation (falling snow) and in water vapour to study their dependance on season and sampling site. Long-term sampling at the former German Georg Forster Station during 1978–93 and at the Japanese Syowa Station during 1994–97 allow conclusions about the present seasonal isotopic variations in the water inflow to Antarctica. The δD and δ18O values of precipitation at these East Antarctic coastal stations were compared with corresponding data from the West Antarctic Georg von Neumayer and Halley stations. The monthly means of these long-term data sets show typical hysteresis-like seasonal patterns of isotopic composition. Significant time lags exist regarding station temperatures, while water vapour δD values do not show such hysteresis patterns. Here, half-yearly and even quarter-yearly time components were found by Fourier analysis. Attempts were made to describe the variation in δD and δ18O values of water vapour and precipitation as well as in the resulting deuterium excess by the mixed cloud isotopic model (MCIM) of Ciais and Jouzel.
ID 8998
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=8998
Schwarz, G., Kowski, P., Gernandt, H. (1997):
Seasonal variation in deuterium and oxygen-18 concentrations of water vapor and precipitation over the Antarctic
Isot. Environ. Health Stud. 33 (1-2), 159 - 168