Low Relative Humidity Layer Observation with Micro Pulse Lidar in Qingdao

Author

Zhang, Bin ; Guo, Jinjia

Author_Institution

Coll. of Inf. Sci. & Technol., Qingdao Univ. of Sci. & Technol., Qingdao, China

Volume

3

fYear

2009

fDate

4-5 July 2009

Firstpage

520

Lastpage

522

Abstract

A low backscattering intensity layer with clear boundary was found with an eye-safe, compact Micro Pulse Lidar (MPL) system in Qingdao (120.33, 36.07). This layer was also found from the energy monitor channel signal of the High Resolution Spectral Lidar (HRSL) system. From radiosonde data we found this layer had low relative humidity (RH) and the RH kept as a constant. Also the radiosonde data showed there was an obvious temperature inversion in low atmosphere which blocked aerosol transport. Jinan(117.55, 36.70) in Shandong province, China and west coast of Korea were two low RH centers. Similar phenomena were also found in many other days, especially in autumn. But the reasons caused to the low RH area need further research.

Keywords

aerosols; atmospheric boundary layer; atmospheric humidity; atmospheric measuring apparatus; optical radar; radiosondes; remote sensing by laser beam; China; High Resolution Spectral Lidar system; Jinan; Korea; Micro Pulse Lidar; Qingdao; Shandong province; aerosol transport; energy monitor channel signal; low backscattering intensity layer; low relative humidity layer; radiosonde data; temperature inversion; Aerosols; Atmosphere; Backscatter; Energy resolution; Humidity; Laser radar; Monitoring; Ocean temperature; Optical scattering; Remote sensing; lidar; radiosonde data; relative humidity; satellite image;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3682-8

Type

conf

DOI

10.1109/ESIAT.2009.513

Filename

5199745