Validation of Doppler Wind Lidar during Super Typhoon Lekima (2019)
Validation of Doppler Wind Lidar during Super Typhoon Lekima (2019)
复制标题
超强台风利奇马（2019）期间多普勒测风激光雷达的验证
DOI：
10.1007/s11707-020-0838-9
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发表时间：
2020-12
影响因子：
2
通讯作者：
Li Yongping
中科院分区：
文献类型：
--
作者：
Tang Shengming;Guo Yun;Wang Xu;Tang Jie;Li Tiantian;Zhao Bingke;Zhang Shuai;Li Yongping
本研究对WindCube V2多普勒测风激光雷达（DWL）测风数据的适用性和准确性进行了验证。这些数据是作为中国浙江省舟山市实地实验的一部分收集的，该实验是由中国气象局上海台风研究所在超级台风Lekima（2019年）通过期间进行的。DWL测量值与气球载GPS无线电探空仪（GPS探空仪）数据进行了比较，后者是使用从DWL位置发射的气球获得的。结果表明，由于漂移效应的影响，GPS探空仪在< 100 m高度测得的风速是不可靠的。在全球定位系统探测仪从地面上升到270米高度的过程中，DWL测得的时间平均风速（在> 100米的高度）最佳一致（相关系数：0.82;均方根（RMS）：2.19）。分析表明，降水强度（PI）的载噪比和DWL数据的丢失率产生了相当大的影响，但是，PI对DWL测量的风速偏差的影响很小。具体而言，DWL数据缺失率随着测量高度和PI的增加而增加。当PI值小于等于大雨（PI < 12 mm·h−1）时，300 m以下的DWL数据有效;当PI值大于90 mm·h−1时，100 m以下的DWL数据有效。直到300 m高度，DWL测量的RMS几乎是风廓线雷达（WPR）估计的一半（4.32 m·s−1），表明DWL风数据在台风条件下比WPR数据更准确。
This study undertook verification of the applicability and accuracy of wind data measured using a WindCube V2 Doppler Wind Lidar (DWL). The data were collected as part of a field experiment in Zhoushan, Zhejiang Province (China), which was conducted by Shanghai Typhoon Institute of China Meteorological Administration during the passage of Super Typhoon Lekima (2019). The DWL measurements were compared with balloon-borne GPS radiosonde (GPS sonde) data, which were acquired using balloons launched from the DWL location. Results showed that wind speed measured by GPS sonde at heights of < 100 m is unreliable owing to the drift effect. Optimal agreement (at heights of > 100 m) was found for DWL-measured wind speed time-averaged during the ascent of the GPS sonde from the ground surface to the height of 270 m (correlation coefficient: 0.82; root mean square (RMS): 2.19). Analysis revealed that precipitation intensity (PI) exerts considerable influence on both the carrier-to-noise ratio and the rate of missing DWL data; however, PI has minimal effect on the wind speed bias of DWL measurements. Specifically, the rate of missing DWL data increased with increasing measurement height and PI. For PI classed as heavy rain or less (PI < 12 mm·h−1), the DWL data below 300 m were considered valid, whereas for PI classed as a severe rainstorm (PI > 90 mm·h−1), only data below 100 m were valid. Up to the height of 300 m, the RMS of the DWL measurements was nearly half that of wind profile radar (WPR) estimates (4.32 m·s−1), indicating that DWL wind data are more accurate than WPR data under typhoon conditions.
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DOI：
10.1007/978-1-4613-2937-4_6
发表时间：
1979
期刊：
--
影响因子：
--
作者：
C. Boisrobert
通讯作者：
C. Boisrobert
影响因子：
8
作者：
K. Lau;H. Weng
通讯作者：
K. Lau;H. Weng
影响因子：
9.3
作者：
J. Roadcap;P. Mcnicholl;E. Teets;Mitchell H. Laird
通讯作者：
J. Roadcap;P. Mcnicholl;E. Teets;Mitchell H. Laird
DOI：
10.3390/rs10060825
发表时间：
2018-05
期刊：
Remote. Sens.
影响因子：
--
作者：
Jun A. Zhang;R. Atlas;G. Emmitt;L. Bucci;K. Ryan
通讯作者：
Jun A. Zhang;R. Atlas;G. Emmitt;L. Bucci;K. Ryan
影响因子：
4.1
作者：
David Arthur Smith;M. Harris;A. Coffey;T. Mikkelsen;H. Jørgensen;J. Mann;Régis Danielian
通讯作者：
David Arthur Smith;M. Harris;A. Coffey;T. Mikkelsen;H. Jørgensen;J. Mann;Régis Danielian