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Chin. Opt. Lett.
 Home  List of Issues    Issue 05 , Vol. 08 , 2010    10.3788/COL20100805.0439

Atomosphere boundary layer height determination and observation from ceilometer measurements over Hefei during the total solar on July 22, 2009 eclipse
Junfeng He1;2, Wenqing Liu1, Yunjun Zhang1, Ruifeng Kan1, Zhenyi Chen1, Jun Ruan1
1 [Anhui Institute of Optics and Fine Mechanics], Chinese Academy of Sciences, Hefei 230031, China
2 [Artillery Academy], Hefei 230031, China

Chin. Opt. Lett., 2010, 08(05): pp.439-442-4

Topic:Atmospheric and oceanic optics
Keywords(OCIS Code): 010.0010  140.0140  280.0280  290.0290  

Using an improved inexion point method (IIPM), we investigate atmosphere boundary layer (ABL) height evolution over Hefei during the total solar eclipse on July 22, 2009. A lidar ceilometer is used in ground-based observations. Estimations of ABL heights before, during, and after the solar eclipse are analyzed using the IIPM. Results indicate that the IIPM, which is less sensitive to background noise, is more suitable in detecting ABL height and temporal evolution. Data demonstrate that the total solar eclipse resultes in a decrease in ABL height, indicating a suppression of turbulence activity, similar to that observed during the sunset hours. Changes in ABL height are associated with a slow change in temperature, indicating a significant weakening of penetrative convection and a time lag between ABL response and the reduction in solar radiation.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Get Citation: Junfeng He, Wenqing Liu, Yunjun Zhang, Ruifeng Kan, Zhenyi Chen, Jun Ruan, "Atomosphere boundary layer height determination and observation from ceilometer measurements over Hefei during the total solar on July 22, 2009 eclipse," Chin. Opt. Lett. 08(05), 439-442-4(2010)

Note: This work was supported by the New Technology Research Foundation of the Chinese Meteorological Bureau under Grant No. GYHY200706023.


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