| 江西省山地风场风速订正方法研究 |
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| 引用本文： | 吴琼,桂保玉,徐卫民.江西省山地风场风速订正方法研究[J].气象与环境科学,2019,42(1):47-53. |
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| 作者姓名： | 吴琼 桂保玉 徐卫民 |
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| 作者单位： | 江西省气象科学研究所,南昌,330046;江西省气象科学研究所,南昌,330046;江西省气象科学研究所,南昌,330046 |
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| 基金项目： | 江西省科技厅项目;江西省气象局重点项目“基于多种新型观测资料的LAPS同化分析技术研究”;江西省气象局重点项目“大城市风场温度场精细化预报技术研究与应用” |
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| 摘 要： | 利用气象站、探空及NASA再分析资料,对江西省4县山地风场的12座测风塔风速进行订正研究。研究结果表明:测风塔与气象站风速数据相关性较低,相关系数一般远小于0.45;测风塔与探空资料的风速相关系数可达到0.6以上,最高可达到0.8;NASA再分析资料可以作为江西山地风场风速订正参证数据,其与测风塔风速数据相关性较高,相关系数可达到0.54～0.77,大多数测风塔相关系数可达0.7左右。海拔高度小于1000 m的测风塔与NASA 50 m风速的相关系数明显高于其与NASA 850 hPa风速的相关系数,高度为1000—1200 m的测风塔与NASA 50 m风速和与NASA 850 hPa风速的相关系数相差不明显,高度大于1200 m的测风塔与NASA 850 hPa风速的相关系数明显大于其与NASA 50 m风速的相关系数。比值法订正效果略好于线性回归法的,订正后的风功率密度总体偏大。
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| 关 键 词： | 山地风场 风速 再分析资料 订正方法 |
Research on Wind Speed Revised Method in the Mountain Wind Field over Jiangxi Province |
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| Wu Qiong,Gui Baoyu,Xu Weimin.Research on Wind Speed Revised Method in the Mountain Wind Field over Jiangxi Province[J].Meteorological and Environmental Sciences,2019,42(1):47-53. |
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| Authors: | Wu Qiong Gui Baoyu Xu Weimin |
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| Abstract: | Based on the data of meteorological station, radiosonde and NASA reanalysis, the wind speeds of the 12 wind towers in the four counties over Jiangxi province are revised and studied. Results are as follows. The correlation between wind tower and meteorological station is poor, and the correlation coefficient is generally less than 0.45; the correlation coefficient between wind tower and radiosonde data is higher than 0.6, and the maximum can be up to 0.8; NASA reanalysis data can be used as the reference data, the correlation coefficient between NASA reanalysis data and wind tower data can reach 0.54 0.77, mostly around 0.7. The correlation between the wind speed data measured at the tower which altitude less than 1000 m and NASA 50 m reanalysis data is significantly better than that with NASA 850 hPa reanalysis data. If the tower altitude is between 10001200 m, the difference is not significantly, and if the tower altitude is higher than 1200 m, the correlation between observation data and NASA 850 hPa reanalysis data is significantly better than that with NASA 50 m. Correction effect of ratio method is slightly better than that of linear regression, and the revised value is generally larger than the observation value. |
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| Keywords: | mountain wind field wind speed reanalysis data revised method |
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