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Overlap determination for temperature measurements from a pure rotational Raman lidar
Author(s) -
Chen Hao,
Chen Siying,
Zhang Yinchao,
Guo Pan,
Chen He,
Chen Binglong
Publication year - 2016
Publication title -
journal of geophysical research: atmospheres
Language(s) - English
Resource type - Journals
eISSN - 2169-8996
pISSN - 2169-897X
DOI - 10.1002/2015jd024163
Subject(s) - radiosonde , lidar , calibration , troposphere , raman spectroscopy , altitude (triangle) , intensity (physics) , environmental science , computational physics , signal (programming language) , temperature measurement , materials science , remote sensing , meteorology , physics , optics , mathematics , geology , thermodynamics , computer science , geometry , quantum mechanics , programming language
We propose a new method to calibrate the effect of overlap for temperature measurements made with a pure rotational Raman lidar. This method is based on the construction of a factor in the signal intensity ratio, which has an approximately linear relationship with altitude within the troposphere and can be obtained from radiosonde temperature measurements. Using this relationship, the effect of overlap on the signal intensity ratio can be calibrated. The method has been verified by simulations and an experiment. Comparisons with results obtained from using the existing calibration method show that the overlap determined using the new method is more accurate.