KOPRI Repository

Seasonal variations in the sources of natural and anthropogenic leaddeposited at the East Rongbuk Glacier in the high-altitude Himalayas

Cited 5 time in scopus
Metadata Downloads
Title
Seasonal variations in the sources of natural and anthropogenic leaddeposited at the East Rongbuk Glacier in the high-altitude Himalayas
Other Titles
히말라야 고산지대 East Rongbuk 빙하에서 복원한 대기 중 납의 자연적 인위적 기원의 계절변화 연구
Authors
Lee, Khanghyun
Kevin Rosman
Robert Loss
Ross Edwards
Andrew Moy
Shugui Hou
Graeme Burton
Sungmin Hong
Paul Vallelonga
Laurie Burn-Nune
Subject
Environmental Sciences & Ecology
Issue Date
2014
Citation
Lee, Khanghyun, et al. 2014. "Seasonal variations in the sources of natural and anthropogenic leaddeposited at the East Rongbuk Glacier in the high-altitude Himalayas". SCIENCE OF THE TOTAL ENVIRONMENT, 487(0): 407-419.
Abstract
Lead (Pb) isotopic compositions and concentrations, and barium(Ba) and indium(In) concentrations have been analysed at sub-annual resolution in three sections froma b110mice core dated to the 18th and 20th centuries, as well as snow pit samples dated to 2004/2005, recovered from the East Rongbuk Glacier in the high-altitude Himalayas. Ice core sections indicate that atmospheric chemistry prior to ~1953 was controlled by mineral dust inputs, with no discernible volcanic or anthropogenic contributions. Eighteenth century monsoon ice core chemistry is indicative of dominant contributions from local Himalayan sources;non-monsoon ice core chemistry is linked to contributions fromlocal (Himalayan), regional (Indian/Thar Desert) and long-range (North Africa, Central Asia) sources. Twentieth century monsoon and non-monsoon ice core data demonstrate similar seasonal sources of mineral dust, however with a transition to less-radiogenic isotopic signatures that suggests local and regional climate/environmental change. The snow pit record demonstrates natural and anthropogenic contributions during both seasons,with increased anthropogenic influence during non-monsoon times.Monsoon anthropogenic inputs are most likely sourced to South/South-East Asia and/or India, whereas non-monsoon anthropogenic inputs are most likely sourced to India and Central Asia.
URI
http://repository.kopri.re.kr/handle/201206/6309
DOI
http://dx.doi.org/10.1016/j.scitotenv.2014.03.120
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse