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The spatial distribution of snow and...

Wake, Cameron Parker.

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The spatial distribution of snow and aerosol chemistry in the mountains of central Asia.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The spatial distribution of snow and aerosol chemistry in the mountains of central Asia./
Author:	Wake, Cameron Parker.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 1993,
Description:	207 p.
Notes:	Source: Dissertation Abstracts International, Volume: 54-07, Section: B, page: 3521.
Contained By:	Dissertation Abstracts International54-07B.
Subject:	Geochemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9400402

The spatial distribution of snow and aerosol chemistry in the mountains of central Asia.
Wake, Cameron Parker.

The spatial distribution of snow and aerosol chemistry in the mountains of central Asia. - Ann Arbor : ProQuest Dissertations & Theses, 1993 - 207 p.

Source: Dissertation Abstracts International, Volume: 54-07, Section: B, page: 3521.

Thesis (Ph.D.)--University of New Hampshire, 1993.

Central Asia represents one of the largest voids with respect to our understanding of geochemical cycles in the continental troposphere and hydrosphere. Fortunately, the vast extent of glaciers in central Asia provide several high elevation ($>$5000 m) locations from which to recover glaciochemical records, and thereby furnish a unique window through which to study biogeochemical cycles in the mid- to upper-troposphere.Subjects--Topical Terms:

539092
Geochemistry.

The spatial distribution of snow and aerosol chemistry in the mountains of central Asia.
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008 180830s1993 ||||||||||||||||| ||eng d
035 $a (MiAaPQ)AAI9400402
035 $a AAI9400402
040 $a MiAaPQ $c MiAaPQ
100 1 $a Wake, Cameron Parker. $3 3285260
245 1 4 $a The spatial distribution of snow and aerosol chemistry in the mountains of central Asia.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1993
300 $a 207 p.
500 $a Source: Dissertation Abstracts International, Volume: 54-07, Section: B, page: 3521.
500 $a Director: Paul Mayewski.
502 $a Thesis (Ph.D.)--University of New Hampshire, 1993.
520 $a Central Asia represents one of the largest voids with respect to our understanding of geochemical cycles in the continental troposphere and hydrosphere. Fortunately, the vast extent of glaciers in central Asia provide several high elevation ($>$5000 m) locations from which to recover glaciochemical records, and thereby furnish a unique window through which to study biogeochemical cycles in the mid- to upper-troposphere.
520 $a Snow and ice samples collected from nine glacier basins spread throughout the mountains of central Asia were analyzed for their major ion and particle content. Aerosol samples collected from four sites in central Asia were analyzed for their water soluble major ion chemistry. The data are used to characterize the spatial distribution of major ion, particle and snow accumulation in central Asia.
520 $a Tropospheric aerosols from the southeastern Tibetan Plateau show chemical compositions and concentrations that are comparable to previously reported measurements in the remote troposphere. The general composition and spatial pattern in summer snow chemistry is similar to that for aerosols.
520 $a The spatial distribution of major ion and particle content of central Asian snow is controlled primarily by the influx of dust derived from the arid and semi-arid regions of Asia. Glaciers in the northern and western regions of the Tibetan Plateau, which are surrounded by large source regions for mineral aerosol, show elevated levels of major ions and particles. Glaciers in the south-eastern Tibetan Plateau show lower levels of major ions and particles due to longer transport distances from mineral aerosol source regions in western China. Glaciers in the Karakoram and western Himalaya show high annual fluxes of major ions and particles derived from sources to the west and south. Snow from the southern slopes of the eastern Himalaya snows very low concentrations and annual fluxes of major ions and particles.
520 $a High elevation mountain sites in the Himalaya, Karakoram and south-eastern Tibetan Plateau preserve glaciochemical records of regional to hemispheric significance and provide isolated platforms above the planetary boundary layer from which to investigate the composition of the remote continental troposphere. Glaciers in these regions are the ones most likely to contain longer-term glaciochemical records which detail annual to century scale variation in the strength of the Asian monsoon and long-range transport of Asian dust.
590 $a School code: 0141.
650 4 $a Geochemistry. $3 539092
690 $a 0996
710 2 $a University of New Hampshire. $3 1017788
773 0 $t Dissertation Abstracts International $g 54-07B.
790 $a 0141
791 $a Ph.D.
792 $a 1993
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9400402