Monitoring Dust Concentrations over Desert and Cropland during Dust Storms Using Visibility Sensors

2017 International Conference on Advanced Environmental Engineering

生态环境科学

Du, Mingyuan^1 ; Yonemura, Seiichiro^1 ; Shen, Yanbo^2 ; Wang, Wanfu^3

Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan^1

National Climate Centre (NCC), China Meteorological Administration (CMA), Beijing, China^2

Conservation Institute, Dunhuang Academy, Dunhuang, China^3

关键词: Dust concentrations;    Dust emission;    Ground surfaces;    Meteorological elements;    Optical particle counters;    Particle numbers;    Visibility sensors;    Wind erosions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/111/1/012010/pdf
DOI  :  10.1088/1755-1315/111/1/012010

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Directly measuring the dust concentration during a dust storm is very important for studying dust emission and wind erosion processes. The Mira visibility sensors were introduced for directly measuring dust concentrations over desert and cropland during dust storm events. The output of the sensor was compared with that of optical particle counter. We found that the Mira visibility sensors can directly measure the particle numbers concentrations. Characteristics of dust concentrations at the two ground surfaces during dust storms were analyzed. By using the Mira visibility sensors and optical particle counters and other meteorological elements in Dunhuang, China, dust emission processes and characteristics over desert and oasis during dust storms was discussed.