An Overview of the Land Surface Processes Experiment (Laspex) over a Semi-Arid Region of India |
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Authors: | K G Vernekar S Sinha L K Sadani S Sivaramakrishnan S S Parasnis Brij Mohan S Dharmaraj M N Patil J S Pillai B S Murthy S B Debaje A Bagavathsingh |
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Institution: | (1) Indian Institute of Tropical Meteorology, Dr. Homi Bhabha Road, NCL Post, Pune, 411008, India |
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Abstract: | To understand and quantify the land-surface-vegetation interactionwith the atmospheric boundary layer, and validate or improve upon the existing surfaceflux parameterization schemes in various weather forecast models, a LAnd SurfaceProcesses EXperiment (LASPEX), was designed and executed in the semi-arid regionof Gujarat, India during January 1997–December 1998. Micrometeorological tower observations,soil and vegetation parameters, radiation, turbulence and upper airobservations were taken continuously for two years at five sites, separated by about60–100 km from each other. Towers of 9 m height with instruments at four levels wereinstalled at sites that are agricultural fields and characterized with a variety of soilproperties, vegetation and diverse crops. An overview of the experiment is presented.Some results, such as the seasonal variation of surface energy balance and turbulence statistics,are discussed. |
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Keywords: | India Land-surface LASPEX Monsoon Semi-arid Tower observations |
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