Measurement of extinction-to-backscatter ratio for near-surface aerosols
نویسندگان
چکیده
منابع مشابه
Aerosol extinction-to-backscatter ratio by lidar and MODIS
A study on aerosol extinction-to-backscatter ratio with combination of micro-pulse lidar and MODIS over Hong Kong Q. S. He, C. C. Li, J. T. Mao, and A. K. H. Lau Department of Atmospheric Science, School of Physics, Peking University, Beijing, China The Institute for the Environment, the Hong Kong University of Science and Technology, Hong Kong, China Received: 29 November 2005 – Accepted: 1 Fe...
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Spaceborne reflectance measurements from the POLDER instrument are used to study the specific directional signature close to the backscatter direction. The data analysis makes it possible to derive the extinction-tobackscatter ratio (EBR), which is related to the inverse of the scattering phase function for an angle of 180 and is needed for a quantitative interpretation of lidar observations (a...
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The extinction-to-backscatter ratio (Sa) is an important parameter used in the determination of the aerosol extinction and subsequently the optical depth from lidar backscatter measurements. We outline the algorithm used to determine Sa for the Cloud and Aerosol Lidar and Infrared Pathfinder Spaceborne Observations (CALIPSO) lidar. Sa for the CALIPSO lidar will either be selected from a look-up...
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Extinction-to-backscatter ratio or lidar ratio is a key parameter in the issue of backscatter-lidar inversions. The lidar ratio of Asian dust was observed with a high-spectral-resolution lidar and a combined Raman elastic-backscatter lidar during the springs of 1998 and 1999. The measured values range from 42 to55 sr in most cases, with a mean of 51 sr. These values are significantly larger tha...
متن کاملDetermination of Backscatter-Extinction Coefficient Ratio for LIDAR-Retrieved Aerosol Optical Depth Based on Sunphotometer Data
Backscattered power data from the Doppler LIght Detection And Ranging (LIDAR) systems at the Hong Kong International Airport (HKIA) could be used to obtain the extinction coefficient of the troposphere by combining with the meteorological optical range (MOR) data from the nearby forward scatter sensor. The Range-height Indicator (RHI) scan of the LIDAR is then utilized to derive the vertical pr...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/97jd00005