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Urban dust in the Guanzhong Basin of China, part I: A regional distribution of dust sources retrieved using satellite data
Long, Xin1,2; Li, Nan1,3; Tie, Xuexi1,4; Cao, Junji1,5; Zhao, Shuyu1; Huang, Rujin1,6; Zhao, Mudan7; Li, Guohui1; Feng, Tian1
2016-01-15
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号541期号:2016页码:1603-1613
文章类型Article
摘要Urban dust pollution has been becoming an outstanding environmental problem due to rapid urbanization in China. However, it is very difficult to construct an urban dust inventory, owing to its small horizontal scale and strong temporal/spatial variability. With the analysis of visual interpretation, maximum likelihood classification, extrapolation and spatial overlaying, we quantified dust source distributions of urban constructions, barrens and croplands in the Guanzhong Basin using various satellite data, including VHR (0.5 m), Lansat-8 OLI (30 m) and MCD12Q1 (500 m). The croplands were the dominant dust sources, accounting for 40% (17,913 km(2)) of the study area in summer and 36% (17,913 km(2)) in winter, followed by barrens, accounting for 5% in summer and 10% in winter. Moreover, the total constructions were 126 km(2), including 84% of active and 16% inactive. In addition, 59% of the constructions aggregated on the only megacity of the study area, Xi'an. With high accuracy exceeding 88%, the proposed satellite-data based method is feasible and valuable to quantify distributions of dust sources. This study provides a new perspective to evaluate regional urban dust, which is seldom quantified and reported. In a companied paper (Part-2 of the study), the detailed distribution of the urban dust sources is applied in a dynamical/aerosol model (WRF-Dust) to assess the effect of dust sources on aerosol pollution. (C) 2015 Elsevier B.V. All rights reserved.
关键词Regional Construction Dust Wrf-dust Model Urban Dust Source Satellite Data
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2015.10.063
关键词[WOS]MAXIMUM-LIKELIHOOD CLASSIFICATION ; CONSTRUCTION ; POLLUTION ; XIAN
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000365289300159
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5865
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan
4.Natl Ctr Atmospher Res, Boulder, CO 80303 USA
5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
6.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
7.NW Univ Xian, Coll Urban & Environm Sci, Xian 710127, Peoples R China
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Long, Xin,Li, Nan,Tie, Xuexi,et al. Urban dust in the Guanzhong Basin of China, part I: A regional distribution of dust sources retrieved using satellite data[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,541(2016):1603-1613.
APA Long, Xin.,Li, Nan.,Tie, Xuexi.,Cao, Junji.,Zhao, Shuyu.,...&Feng, Tian.(2016).Urban dust in the Guanzhong Basin of China, part I: A regional distribution of dust sources retrieved using satellite data.SCIENCE OF THE TOTAL ENVIRONMENT,541(2016),1603-1613.
MLA Long, Xin,et al."Urban dust in the Guanzhong Basin of China, part I: A regional distribution of dust sources retrieved using satellite data".SCIENCE OF THE TOTAL ENVIRONMENT 541.2016(2016):1603-1613.
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