李利孝, 肖仪清, 宋丽莉, 秦鹏. 基于风观测塔和风廓线雷达实测的强台风黑格比风剖面研究[J]. 工程力学, 2012, 29(9): 284-293. DOI: 10.6052/j.issn.1000-4750.2011.01.0012
引用本文: 李利孝, 肖仪清, 宋丽莉, 秦鹏. 基于风观测塔和风廓线雷达实测的强台风黑格比风剖面研究[J]. 工程力学, 2012, 29(9): 284-293. DOI: 10.6052/j.issn.1000-4750.2011.01.0012
LI Li-xiao, XIAO Yi-qing, SONG Li-li, QIN Peng. STUDY ON WIND PROFILE OF TYPHOON HAGUPIT USING WIND OBSERVED TOWER AND WIND PROFILE RADAR MEASUREMENTS[J]. Engineering Mechanics, 2012, 29(9): 284-293. DOI: 10.6052/j.issn.1000-4750.2011.01.0012
Citation: LI Li-xiao, XIAO Yi-qing, SONG Li-li, QIN Peng. STUDY ON WIND PROFILE OF TYPHOON HAGUPIT USING WIND OBSERVED TOWER AND WIND PROFILE RADAR MEASUREMENTS[J]. Engineering Mechanics, 2012, 29(9): 284-293. DOI: 10.6052/j.issn.1000-4750.2011.01.0012

基于风观测塔和风廓线雷达实测的强台风黑格比风剖面研究

STUDY ON WIND PROFILE OF TYPHOON HAGUPIT USING WIND OBSERVED TOWER AND WIND PROFILE RADAR MEASUREMENTS

  • 摘要: 利用两座风观测塔和一台风廓线雷达对强台风黑格比的实测结果,研究了台风黑格比近地塔层和边界层风剖面特征.结果表明:在近地塔层风剖面,陆地来风时,最大风速高度高于70m,且指数律剖面指数α随着风速的增大而减小;海面来风时,最大风速高度约为50m,指数律剖面指数α随着风速的增大而增大.在边界层风剖面,台风黑格比前眼壁强风区梯度风高度为450m,后眼壁强风区为300m,外风场为200m.指数律和对数律剖面可以用来描述台风黑格比眼壁强风区300m 高度以下和外风场200m 高度以下的风剖面,但是风剖面参数不符合规范推荐值,D-H 模型参数不适合描述其风剖面,需进行修正.

     

    Abstract: Using field measured wind data of strong typhoon Hagupit conducted on two wind observed towers and Airda 3000Q wind profile radar, tower-height level typhoon wind profiles and boundary layer typhoon wind profiles are studied. In the tower-height level wind profile, the maximum wind height is higher than 70m, and exponential index α decreases with mean wind speed when wind approaches from land side; while the maximum wind height is about 50m, and exponential index α increases with mean wind speed for onshore wind. In the boundary layer wind profile, the gradient height is 450m in the front eye-wall, 300m in the back eye-wall and 200m in outer-vortex. Log law and power law can be used to describe the typhoon Hagupit profile below 300m height in eye-wall region and 200m in outer-vortex, but the parameters are different from those values recommended in the wind code. Modification is needed for Deaves-Harris ABL model to describe typhoon Hagupit profile.

     

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