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基于CCMP的台湾海峡海面风场时空特征变化分析

温灿 王志雄 邹巨洪 冯倩

温灿,王志雄,邹巨洪,等. 基于CCMP的台湾海峡海面风场时空特征变化分析[J]. 海洋学报,2024,46(4):65–78 doi: 10.12284/hyxb2024023
引用本文: 温灿,王志雄,邹巨洪,等. 基于CCMP的台湾海峡海面风场时空特征变化分析[J]. 海洋学报,2024,46(4):65–78 doi: 10.12284/hyxb2024023
Wen Can,Wang Zhixiong,Zou Juhong, et al. Analysis of temporal and spatial characteristics of sea surface wind field in Taiwan Strait based on CCMP[J]. Haiyang Xuebao,2024, 46(4):65–78 doi: 10.12284/hyxb2024023
Citation: Wen Can,Wang Zhixiong,Zou Juhong, et al. Analysis of temporal and spatial characteristics of sea surface wind field in Taiwan Strait based on CCMP[J]. Haiyang Xuebao,2024, 46(4):65–78 doi: 10.12284/hyxb2024023

基于CCMP的台湾海峡海面风场时空特征变化分析

doi: 10.12284/hyxb2024023
基金项目: 国家重点研发计划项目(2022YFC3104901)。
详细信息
    作者简介:

    温灿(1999—),女,山西省吕梁市人,研究方向为海洋微波遥感。E-mail:wen839309413@163.com

    通讯作者:

    王志雄(1987—),男,陕西省榆林市人,博士,副教授,研究方向为卫星海洋遥感、极地遥感、卫星资料同化。E-mail:wangzhixiong@nuist.edu.cn

  • 中图分类号: P714+.2

Analysis of temporal and spatial characteristics of sea surface wind field in Taiwan Strait based on CCMP

  • 摘要: 利用1993−2022年最新版交叉标定多平台风场资料(CCMP V3.1),针对台湾海峡海面风场的年、季、月、日变化特征进行了分析。结果表明:台湾海峡及台湾岛周边海域风场具有明显的空间分布特征,地形效应导致不同海域出现风速极大值区和极小值区。其中台湾海峡中部受“狭管效应”的影响,在冬季风速最大,风向基本与海峡走向平行;夏季风速低于海峡外部的风速,无“狭管效应”。此外,海面风场还具有明显的季、月变化特征,冬季盛行东北风,风速为全年最高;夏季盛行西南风,风速最低;春、秋两季风场特征相似,皆盛行东北风;冬季风比夏季风盛行期长,约占全年的四分之三。对风场的年际变化分析时,结果表明夏季风向易发生较大角度的偏转;年平均风速保持基本平缓的线性趋势,在一些年份的异常偏高或偏低与海气相互作用现象厄尔尼诺−南方涛动的发生相关。研究日变化特征时则发现,在夜间20时风速和风向波动最大;风速一天内存在周期性变化;风向日变化夏季偏转最明显。
  • 图  1  多年月平均海面风场的空间分布

    Fig.  1  Spatial distribution of the monthly mean sea surface wind field for many years

    图  2  多年季节平均海面风场的空间分布

    Fig.  2  Spatial distribution of the seasonal mean sea surface wind field for many year

    图  3  海面风速多年平均方差空间分布

    Fig.  3  Spatial distribution of sea surface wind speed mean variances for many years

    图  4  研究区域选取

    Fig.  4  Study area selection

    图  5  月平均风速的年际变化

    Fig.  5  Interannual variation of monthly mean wind speed

    图  6  年平均风速的逐年线性趋势

    Fig.  6  The linear trend of annual mean wind speed

    图  7  月平均风向的年际变化

    Fig.  7  Interannual variation of monthly mean wind direction

    图  8  多年月平均风速和风向的日变化

    Fig.  8  Diurnal variation of mean monthly wind speed and direction for many years

    图  9  风速日变化距平

    Fig.  9  Anomalies in the diurnal variation of wind speed

    图  10  风向日变化的分布特征

    Fig.  10  Distribution characteristics of diurnal variation of wind direction

    图  11  浮标观测的风速和风向日变化

    Fig.  11  Observations of diurnal variations in wind speed and direction at buoy

    表  1  UTC与LST时间转换表

    Tab.  1  UTC and LST time conversion

    UTC LST
    00:00 8:00(早晨)
    06:00 14:00(中午)
    12:00 20:00(夜间)
    18:00 2:00(+1)(次日凌晨)
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-11-22
  • 修回日期:  2024-03-04
  • 网络出版日期:  2024-05-11
  • 刊出日期:  2024-06-30

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