Study in Retrieval Visibility and Optical Thickness of Fog with MODTRAN

Author

Zhang Wengang ; Wei Ming ; Yu Tao ; Wang Gengke ; Lai Jibao ; Wang Yuqing

Author_Institution

Key Lab. of Meteorol. Disaster of Minist. of Educ., Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China

fYear

2010

fDate

29-31 Oct. 2010

Firstpage

1

Lastpage

3

Abstract

In recent years, many scientists have done some work in monitoring the fog, and achieved fruitful results. Now we want to conduct more in-depth study. In this paper, we utilize MODTRAN to simulate the relationship between transmittance and visibility, height of fog. By fitting the relationship between them, we get the formula that calculates visibility of fog using transmittance and height of fog. The correlation coefficient of this formula is very high, so it can be regarded as an accuracy one. The height of fog can be calculated by top temperature of fog, surface temperature and vertical lapse rate. The transmittance of the fog can be measured by using special instrument. Therefore, the visibility and optical thickness can be retrieved by this method.

Keywords

atmospheric optics; atmospheric techniques; atmospheric temperature; fog; remote sensing; MODTRAN; correlation coefficient; fog height; fog monitoring; fog transmittance; optical thickness; remote sensing monitoring; retrieval visibility; surface temperature; vertical lapse rate; Atmospheric modeling; Ocean temperature; Optical scattering; Optical sensors; Satellites; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2010 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4244-7871-2

Type

conf

DOI

10.1109/ICMULT.2010.5631308

Filename

5631308