A 108.83-m Ice-Core Record of Atmospheric Dust Deposition at Mt. Qomolangma (Everest), Central Himalaya
- 20 January 2010
- journal article
- Published by Cambridge University Press (CUP) in Quaternary Research
- Vol. 73 (1) , 33-38
- https://doi.org/10.1016/j.yqres.2009.09.005
Abstract
The central Himalaya can be regarded as an ideal site for developing a long-term ice core dust record to reflect the environmental signals from regional to semi-hemispheric scales. Here we present a dust record from segments of a 108.83-m ice core recovered from the East Rongbuk (ER) Glacier (27°59′N, 86°55′E; 6518 m a.s.l.) on the northeast slope of Mt. Qomolangma (Everest) in the central Himalaya, covering the period AD 600–1960. Due to rapidly layer thinning and coarse sampling, we primarily discuss the changes in the dust record since AD 1500 in this paper. Results show a significant positive relationship between the dust concentration and reconstructed air temperatures during this period, suggesting a likely cold–humid and warm–dry climatic pattern in the dust source regions, namely Central Asia. This is associated with the variability in the strength of the westerlies and its corresponding precipitation.Keywords
This publication has 46 references indexed in Scilit:
- Holocene moisture evolution in arid central Asia and its out-of-phase relationship with Asian monsoon historyQuaternary Science Reviews, 2008
- Dust storm activity over the Tibetan Plateau recorded by a shallow ice core from the north slope of Mt. Qomolangma (Everest), Tibet‐Himal regionGeophysical Research Letters, 2007
- Recent and Future Climate Change in Northwest ChinaClimatic Change, 2006
- Effect of remote forcings on the winter precipitation of central southwest Asia part 1: observationsTheoretical and Applied Climatology, 2006
- ENVIRONMENTAL CHARACTERIZATION OF GLOBAL SOURCES OF ATMOSPHERIC SOIL DUST IDENTIFIED WITH THE NIMBUS 7 TOTAL OZONE MAPPING SPECTROMETER (TOMS) ABSORBING AEROSOL PRODUCTReviews of Geophysics, 2002
- Northern hemisphere temperatures during the past millennium: Inferences, uncertainties, and limitationsGeophysical Research Letters, 1999
- The size distribution of microparticles from selected segments of the Greenland Ice Core Project ice core representing different climatic periodsJournal of Geophysical Research: Oceans, 1997
- Major features and forcing of high‐latitude northern hemisphere atmospheric circulation using a 110,000‐year‐long glaciochemical seriesJournal of Geophysical Research: Oceans, 1997
- Glaciochemistry of polar ice cores: A reviewReviews of Geophysics, 1997
- Modern eolian dust deposition in central AsiaTellus B: Chemical and Physical Meteorology, 1994