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首页> 外文期刊>海洋理工学会誌 >Comparison of the accuracy of various global wind speed datasets obtained from satellites and reanalyses
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Comparison of the accuracy of various global wind speed datasets obtained from satellites and reanalyses

机译：从卫星和Reanalys获得的各种全局风速数据集的准确性的比较

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摘要

Wind speed data are used to estimate the global air-sea momentum, heat, and CO_2 gas flux. The accuracy of wind speed data is clearly very important for these purposes. However, since global wind speed datasets are assembled from various sources of satellite and reanalysis data, the most-suitable dataset is often unclear. This study verifies the accuracy of available wind speed datasets by comparing various satellites and reanalyzed wind speed datasets using wind speeds measured by buoys. The global wind speed datasets, such as Cross Calibrated Multi-Platform (CCMP), NCEP/CFSR, NCEP-R1, NCEP-R2, European Center for Medium-Range Weather Forecasts (ECMWF)/ERA-Interim, and JRA-55 datasets were used. The root mean square error (RMSE) values of the six datasets against reference measurements arc 1.05, 1.53, 2.16, 2.45, 1.42, and 1.64 (m/s), respectively. The accuracy of global datasets differs depending on the ocean area. However, the wind speed dataset in CCMP is the most accurate for any local ocean area. In the north Pacific and north Atlantic, all the datasets we tested are inaccurate. These results show that differences in the accuracy of the wind speed datasets may have a significant effect on the estimation of global air-sea momentum, heat, and CO_2 gas flux.
机译：风速数据用于估算全球海洋动量，热量和CO_2气体通量。风速数据的准确性对于这些目的而言显然非常重要。然而，由于全局风速数据集从各种卫星和再分析数据的源组装，因此最合适的数据集通常不清楚。本研究通过使用浮标测量的风速比较各种卫星和重叠的风速数据集来验证可用风速数据集的准确性。全局风速数据集，如十字校准的多平台（CCMP），NCEP / CFSR，NCEP-R1，NCEP-R2，欧洲中等范围天气预报中心（ECMWF）/ ERA-INSIM和JRA-55数据集被使用了。六个数据集的根均方误差（RMSE）对抗参考测量弧1.05,1.53,2.16,2.45,1.42和1.64（m / s）。全球数据集的准确性因海洋区域而异。但是，CCMP中的风速数据集是任何当地海洋区域最准确的。在北太平洋和北大西洋，我们测试的所有数据集都是不准确的。这些结果表明，风速数据集的准确性的差异可能对全球海洋动量，热量和CO_2气体通量的估计有显着影响。

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  • 来源
    《海洋理工学会誌》 |2018年第2期|31-37|共7页
  • 作者

    Naoya Suzuki; Masanori Konda; Kunio Kutsuwada; Kyota Utsunomiya;

  • 作者单位

    Department of Mechanical Engineering Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan;

    Department of Geophysics Graduate school of Science Kyoto University Kitashirakawa-Oiwake-cho Sakyo-ku Kyoto 606-8502 Japan;

    Department of Marine and Earth Science School of Marine Science and Technology Tokai University 3-20-1 Orido Shimizu-ku Shizuoka 424-8610 Japan;

    Department of Mechanical Engineering Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Global reanalysis wind speed data set; Global satellite wind speed data set; Air-sea momentum; heat; and CO_2 flax;

    机译：全球重新分析风速数据集;全球卫星风速数据集;海运势头;热;和co_2亚麻;

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