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| Titel |
Climatic controls on winter water vapour stable isotopes at Lhasa, southern Tibetan Plateau |
| VerfasserIn |
Jing Gao, Tandong Yao, Hans Christian Steen-Larsen, Valérie Masson-Delmotte |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250109129
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| Publikation (Nr.) |
 EGU/EGU2015-9007.pdf |
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| Zusammenfassung |
| Water stable isotopes from Tibetan ice cores provide important climate information.
However, the archived climate signal is an integrated signal of precipitation processes and
post-deposition processes. Only very limited datasets of direct Tibetan precipitation and
snowfall measurements are available so far. The isotopic composition of atmospheric water
vapour traces directly the key physical processes of hydrological cycle, providing the
potential of enhancing our knowledge of the climatic explanation from Tibetan ice cores.
Thus, Continuous, in situ measurements of water vapour stable isotopes have been conducted
at Lhasa, southern Tibetan Plateau, since October 2014, using an integrated cavity output
spectroscopy analyser (LGR analyser) and a LGR water isotope standard source (WVISS) to
calibrate and drift-correct the outputs. Combined with local meteorological data, TES data
and simulations from the LMDZiso model, the climate controls of water vapour at Lhasa are
explored at daily scale. |
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