Studies of the spatial correlation between urban aerosols and local traffic congestion using a slant angle scanning Mie lidar system

Andrew Y. S. Cheng; Wesley S. W. Tsang; Jianhua Zhu

doi:10.1117/12.417052

13 February 2001 Studies of the spatial correlation between urban aerosols and local traffic congestion using a slant angle scanning Mie lidar system

Andrew Y. S. Cheng, Wesley S. W. Tsang, Jianhua Zhu

Author Affiliations +

Proceedings Volume 4153, Lidar Remote Sensing for Industry and Environment Monitoring; (2001) https://doi.org/10.1117/12.417052
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

A mobile volume scanning Mie Lidar has been integrated to take slant angle scan of aerosol distribution over 120 degree within 10 minutes. The Lidar system is a bi-axial design with operating wavelength of 532nm. The receiver is a compact Schmidt-Cassegrain telescope. Since the system is designed to be compact and lightweight, it could be readily fitted into a small van for field observations. This system has been deployed to study the correlation between the spatial distribution of aerosols over the urban area in Hong Kong and the conditions of local traffic congestion. The scans covered approximately a range from 1 to 4 km. From the data obtained, spatial variations were clearly observed, and the location of enhanced aerosol density correlated with areas of high traffic congestion very well. From the data, a vertical dispersion model can be verified. With the time series analysis of the distributions, one would be able to compute the time scale of the dispersion. With routine observations, the cause of aerosol variations can be better understood in the future. Thus it would lead to good suggestions in improvement of the air pollution problem in an urban city with dense population. Other potential studies that can be carried from this Lidar include the aerosol variations over a sea-land system and the internal boundary height over a complex terrain.

Citation Download Citation

Andrew Y. S. Cheng, Wesley S. W. Tsang, and Jianhua Zhu "Studies of the spatial correlation between urban aerosols and local traffic congestion using a slant angle scanning Mie lidar system", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001); https://doi.org/10.1117/12.417052

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

LIDAR

Aerosols

Mass attenuation coefficient

Mineralogy

Optical testing

Atmospheric modeling

Humidity

Show All Keywords

Keywords/Phrases

Search In:

Publication Years