View : 564 Download: 0

Characterization of Asian Dust during ACE-Asia

Title
Characterization of Asian Dust during ACE-Asia
Authors
Arimoto R.Kim Y.J.Kim Y.P.Quinn P.K.Bates T.S.Anderson T.L.Gong S.Uno I.Chin M.Huebert B.J.Clarke A.D.Shinozuka Y.Weber R.J.Anderson J.R.Guazzotti S.A.Sullivan R.C.Sodeman D.A.Prather K.A.Sokolik I.N.
Ewha Authors
김용표
SCOPUS Author ID
김용표scopus
Issue Date
2006
Journal Title
Global and Planetary Change
ISSN
0921-8181JCR Link
Citation
Global and Planetary Change vol. 52, no. 1-4, pp. 23 - 56
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
ACE-Asia was a multi-national collaboration organized to investigate and understand the chemistry, radiative properties, and climatic effects of mineral dust and other aerosol particles in the East Asia/Northwest Pacific region. Studies conducted at the Gosan and Zhenbeitai surface supersites show striking variations in aerosol concentrations and properties that were affected by the occurrence and origins of the Asian dust storms, air mass pathways, and mixing during the transport. Investigations conducted on the R/V Ronald H. Brown (RHB) showed that dust had a pervasive influence on the chemical composition, size distribution, and optical properties of the aerosol. Analyses using an aerosol time-of-flight mass spectrometer on the RHB showed that most of the coarse-particle nitrate and sulfate in post-frontal air was associated with dust, and more remarkably, that competitive or exclusionary processes evidently are involved in the uptake or production of these substances. Studies conducted onboard the NCAR C-130 aircraft showed that coarse-mode dust was less absorbing and less hygroscopic than pollution aerosol and that there was little correlation in light scattering and absorption by the sub- vs. super-micrometer aerosol. Below ∼2 km, dust was commonly mixed with pollutants, and this had a stronger influence on the optical properties of the submicrometer particles than the coarse-mode dust; at higher altitudes, the dust was less affected by pollution. Single particle analyses of C-130 samples showed that the mixing of black carbon (BC) with dust was common, but only certain types of BC particles were aggregated. Models were used in the planning, execution and interpretative phases of ACE-Asia; and summaries of modeling results are presented to illustrate the progress being made in identifying new dust sources; in depicting the time-varying, three-dimensional structure of dust plumes; and in quantifying the production, transport, and deposition of Asian dust. © 2006 Elsevier B.V. All rights reserved.
DOI
10.1016/j.gloplacha.2006.02.013
Appears in Collections:
공과대학 > 화공신소재공학과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

BROWSE