English  |  正體中文  |  简体中文  |  Items with full text/Total items : 27228/39071
Visitors : 2411636      Online Users : 57
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40018

Title: A super Asian dust storm over the East and South China Seas: Disproportionate dust deposition
Authors: Shih-Chieh Hsu
Fujung Tsai
Fei-Jan Lin
Wei-Nai Chen
Fuh-Kwo Shiah, Jr-Chuan Huang
Chuen-Yu Chan
Chung-Chi Chen
Tsun-Hsien Liu
Hung-Yu Chen;Chun-Mao Tseng;Gwo-Wei Hung
Chao-Hao Huang
Shuen-Hsin Lin
Yi-Tang Huang
Contributors: 國立臺灣海洋大學:海洋環境資訊學系
Keywords: South China Sea
Asian dust
dust deposition
dust iron
East China Sea
long-range transport
Date: 2013-07
Issue Date: 2017-01-12T03:25:45Z
Publisher: Journal of Geophysical Research Atmospheres
Abstract: Abstract: A super Asian dust (SAD) storm that originated from North China has affected East Asia since 20 March 2010. The tempo-spatial and size distributions of aerosol Al, a tracer of wind-blown dust, were measured on a regional aerosol network in March 2010. Two dust events were recorded: the SAD and a relatively moderate AD event. The SAD clouds raised Al concentrations to ~50 µg/m3 on 21 and 22 March over the East China Sea (ECS) and occupied there for ~5 days. The SAD plume also stretched toward the South China Sea (SCS) on 21 March however, it caused a maximum Al concentration of ~8.5 µg/m3 only, much lower than that observed in the ECS. In comparison, a weaker dust plume on 16 March caused Al maximum of ~4 µg/m3 over the ECS, and comparably, ~3 µg/m3 in the SCS. Dry dust deposition was measured during the peak phase of the SAD at 178 mg/m2/d, which corresponded to dry deposition velocities of 0.2–0.6 cm/s only, much lower than the commonly adopted one (1–2 cm/s). The corresponding increase in dust deposition by the SAD was up to a factor of ~12, which was, however, considerably disproportionate to the increase in dust concentration (i.e., the factor of over 100). In certain cases, synoptic atmospheric conditions appear to be more important in regulating dust contribution to the SCS than the strength of AD storms.
Relation: 118(13)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40018
Appears in Collections:[海洋環境資訊系] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML63View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback