Relation Between Long-Term Trends of Oxygen-18 Isotope Composition of Precipitation and Climate

Abstract

Stable isotope ratios of oxygen ((18)O/(16)O) and hydrogen (D/H) in water have long been considered powerful indicators of paleoclimate. However, quantitative interpretation of isotope variations in terms of climate changes is hampered by a limited understanding of physical processes controlling the global isotope behavior. Analysis was conducted of time series of (18)O content (delta (18)O) of monthly precipitation and surface air temperature available through the International Atomic Energy Agency-World Meteorological Organization global network, "Isotopes in Precipitation." This study indicates that long-term changes of isotopic composition of precipitation over mid-and high-latitude regions during the past three decades closely followed long-term changes of surface air temperature with the average 8180-temperature coefficient around 0.6 per mil per degree Celsius.

Hydrological control of the dead carbon fraction in a Holocene tropical speleothem

“…Previous work in Indonesia (e.g. Griffiths et al, 2009;Lewis et al, 2010) has demonstrated that the dominant process controlling the d 18 O of monsoon rainfall, and hence the speleothem calcite, is the 'amount effect' (Rozanski et al, 1992). This process, whereby lower (higher) d 18 O values correspond with higher (lower) rainfall, is underpinned by the strong co-variation with Mg/ Ca (Fig.…”

Spatial variability in the European winter precipitation δ18O‐NAO relationship: Implications for reconstructing NAO‐mode climate variability in the Holocene

“…While the spatiotemporal relationships between the NAO and meteorological variables (e.g., precipitation amount and air temperature) are well-constrained [e.g., Castro-Díez et al, 2002;Hurrell, 1995;Munoz-Diaz and Rodrigo, 2003;Thompson and Wallace, 2001;Trigo et al, 2002;Uvo, 2003;Zveryaev, 2004] [Bowen and Revenaugh, 2003;Bowen and Wilkinson, 2002;Jouzel et al, 2000;Rozanski et al, 1992], whereas our primary focus is the d 18 O p -NAO relationship.…”

Analysis of δ18O in tree rings: Wood‐cellulose comparison and method dependent sensitivity

“…Stable isotopes in precipitation have already been investigated for a few decades and have been found to strongly reflect climatic conditions, especially temperature [Dansgaard, 1964;Rozanski et [Eicher, 1995], and in tree rings [Saurer et For internal and interlaboratory calibrations we used three different cellulose standards: "Merck," "IAEA-C3," and "WSL." Merck is a commercial cellulose available as powder, mostly used for thin-layer chromatography.…”