AN AEROSOL POLLUTION EPISODE IN HONG KONG WITH REMOTE SENSING PRODUCTS OFMODIS AND LIDAR

Li Cheng cai; Lau Kai-hon; ao Jietai; Chen Aizhong

Vol.15, NO.6, 2004

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2004 > 15(6): 641-650

Li Cheng cai, Lau Kai-hon, ao Jietai, et al. An aerosol pollution episode in Hong Kong with remote sensing products of MODIS and LIDAR. J Appl Meteor Sci, 2004, 15(6): 641-650.

Citation:

Li Cheng cai, Lau Kai-hon, ao Jietai, et al. An aerosol pollution episode in Hong Kong with remote sensing products of MODIS and LIDAR. J Appl Meteor Sci, 2004, 15(6): 641-650.

Li Cheng cai, Lau Kai-hon, ao Jietai, et al. An aerosol pollution episode in Hong Kong with remote sensing products of MODIS and LIDAR. J Appl Meteor Sci, 2004, 15(6): 641-650.

Citation:

Li Cheng cai, Lau Kai-hon, ao Jietai, et al. An aerosol pollution episode in Hong Kong with remote sensing products of MODIS and LIDAR. J Appl Meteor Sci, 2004, 15(6): 641-650.

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AN AEROSOL POLLUTION EPISODE IN HONG KONG WITH REMOTE SENSING PRODUCTS OFMODIS AND LIDAR

1.
Center for Coastal and Atmospheric Research (CCAR), The Hong Kong University of Science and Technology (HKUS T), Hong Kong
2.
Department of Atmospheric Science, School of Physics, Peking University, Beijing 100871
3.
Shenzhen Institute of Enviromental Sciences, Shenzhen 518001

Received Date: 2003-09-01
Rev Recd Date: 2004-01-29
Publish Date: 2004-12-31

Abstract

Abstract

Aerosol optical depth data from MODIS visual channels and aerosol extinction coefficient profiles from MPL LIDAR are used to study an aerosol pollution episode in the Pear River Data on June 18 and 19, 2003. The regional distribution pattern of aerosol optical depth and the evolution of aerosol extinction coefficient profiles in mixing layer form remote sensing methods are given to demonstrate that the air pollution case caused by weak stable high system has a regional coverage and contributes to the surface air pollution in Hong Kong. The results show that satellite and LIDAR remote sensing provide new ways in air pollution study.
- Satellite;
- remote;
- sensing;
- LIDAR;
- Aerosol;
- Air pollution

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References(9)

Figures and Tables

图 1 广州、珠海和深圳2003年6月9~20日API逐日变化

(资料来自环保部门每日发布数据)

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图 2 香港地区元朗、东涌和塔门3个站2003年6月16~20日地面PM10质量浓度

(香港环保署 (HKEPD) 数据)

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图 3 香港地区东涌和塔门两个站2003年6月16~20日地面SO₂体积比浓度

(香港环保署 (HKEPD) 数据)

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图 4 MODIS气溶胶光学厚度产品

(a)2003年6月Terra和Aqua遥感AOD平均值; (b)2003年6月18日10:25 Terra获取的AOD分布; (c)2003年6月18日13:30 Aqua获取的AOD分布; (d)2003年6月19日11:05 Terra获取的AOD分布 (来自NASA反演Level2产品，图中斜格区域为因多云或卫星轨道未覆盖的无数据区域)

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图 5 2003年6月18日08:00华南地区天气背景

(香港天文台资料)

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图 6 香港地区MODIS 1 km AOD分布 (a)2003年6月18日13:30 Aqua，(b)2003年6月19日11:05 Terra

(图中黑色部分为海面，陆地白色部分为有云或地表植被稀少反射率比较高的地带，；两处均没有数据)

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图 7 2003年6月18日和19日LIDAR反演的气溶胶消光系统廓线时间变化 (km^-1)

(香港元朝：22.44°N，114.02°E)

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图 8 LIDAR反演的气溶胶消光系数 (km^-1) 近地面层 (130 m) 与地面PM10浓度 (μg°m^-3) 的对比

(香港元朗，2003年6月18日~6月19日)

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References

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