Observational Study of Wind Profiles in Gale Area in Xinjiang
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Abstract:
To study the atmospheric wind field characteristics in the 100km Gale Area in Xinjiang, the Institute of Urumqi Desert Meteorology of the China Meteorological Administration carried out an observation experiment from 25 March to 8 April 2009 at Shisanjianfang Station, which is within the 100km Gale Area in Xinjiang. The diurnal and daytoday variations of the lowerlevel wind fields are analyzed by using the wind profile data from the Airda3000Q windprofiler radar system. The results show:（1） in this area, west and north winds prevailed, and longitudedirection winds were evidently greater than latitudedirection winds on the same time; (2) the horizontal wind speeds below 1500 meters were in general obviously greater that those above 1500 meters, influenced by the funneling effect of the Qijiaojing pass; (3) the analysis of the average profiles in day and night time shows that the nighttime wind speed was greater than that of the whole day, but the change trends with height were basically same for both, with the wind speed being decreasing with the increasing height below 1500 meters and increasing above 1500 meters; (4) the high temporalspatial resolution data of wind profiles were obtained by means of the Airda3000Q boundary layer wind profiler radar, which can be used to monitor the occurrence and change processes of gale weather.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.