Simultaneous Ground-Based Remote Sensing of Water Vapor by Differential Absorption and Raman Lidars
نویسندگان
چکیده
Water vapor is well known to be a critical component in many aspects of atmospheric research, such as radiative transfer and cloud and aerosol processes. The distribution of water vapor in the atmosphere is highly variable, both in time and in space, and has proven to be very difficult to measure accurately. The U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) Program’s overall goal is to improve global climate models by improving the treatment of the radiative transfer processes that occur in the atmosphere. One of the conclusions of the ARM Program was that uncertainties in the absolute calibration of the water vapor measurements are currently the limiting factor in the improvement of radiative transfer algorithms for clear skies (Clough et al. 1999). While instruments such as the microwave radiometer (MWR) can provide accurate measurements of total precipitable water vapor (PWV) in the column, accurate profiles of water vapor are also needed in order to calculate accurate cooling rate profiles.
منابع مشابه
Remote Raman Spectroscopy. Profiling Water Vapor and Aerosols in the Troposphere Using Raman Lidars
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