Late Holocene isotope hydrology of Lake Qinghai, NE Tibetan Plateau: effective moisture variability and atmospheric circulation changes
نویسندگان
چکیده
منابع مشابه
Late Holocene environmental change on the NE Tibetan Plateau: a palaeolimnological study of Lake Qinghai and Lake Gahai, China, based on stable isotopes
Climate driven hydrologic variability has direct socio-economic impacts on local, regional and global scales. Particularly vulnerable is the region that lies within the boundaries of the East Asian monsoon, which is one of the most pronounced and influential phenomena of Earth’s climate system. People within the heavily populated Asian countries have adapted many aspects of their society to the...
متن کاملAge constraints on the late Quaternary evolution of Qinghai Lake, Tibetan Plateau
Dating and geomorphology of shoreline features in the Qinghai Lake basin of northwestern China suggest that, contrary to previous interpretations, the lake likely did not reach levels 66–140 m above modern within the past ∼90,000 yr. Maximum highstands of ∼20–66 m above modern probably date to Marine Isotope Stage (MIS) 5. MIS 3 highstands are undated and uncertain but may have been at or below...
متن کاملPossible orographic and solar controls of Late Holocene centennial- scale moisture oscillations in the northeastern Tibetan Plateau
[1] We present a record of lake-level changes from Hurleg Lake, a freshwater lake in the arid Qaidam Basin on the NE Tibetan Plateau, an area with few high-resolution paleoclimate records. The carbonate percentage and ostracode abundance show a consistent pattern with 200-year moisture oscillations during the last 1000 years. The moisture pattern in the Qaidam Basin is in opposite relation to t...
متن کاملRegional atmospheric circulation change in the North Pacific during the Holocene inferred from lacustrine carbonate oxygen isotopes, Yukon Territory, Canada
Analyses of sediment cores from Jellybean Lake, a small, evaporation-insensitive groundwater-fed lake, provide a record of changes in North Pacific atmospheric circulation for the last ̈7500 yr at 5to 30-yr resolution. Isotope hydrology data from the southern Yukon indicate that the oxygen isotope composition of water from Jellybean Lake reflects the composition of mean-annual precipitation, y1...
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ژورنال
عنوان ژورنال: Quaternary Science Reviews
سال: 2010
ISSN: 0277-3791
DOI: 10.1016/j.quascirev.2010.05.019