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黄海潮波系统下的GOCI反演及OSU模式海表流场数据适用性研究

崔赫 陈建裕 曹振轶 管卫兵 朱乾坤 龚芳

崔赫,陈建裕,曹振轶,等. 黄海潮波系统下的GOCI反演及OSU模式海表流场数据适用性研究[J]. 海洋学报,2022,44(7):93–108 doi: 10.12284/hyxb2022108
引用本文: 崔赫,陈建裕,曹振轶,等. 黄海潮波系统下的GOCI反演及OSU模式海表流场数据适用性研究[J]. 海洋学报,2022,44(7):93–108 doi: 10.12284/hyxb2022108
Cui He,Chen Jianyu,Cao Zhenyi, et al. Study on applicability of GOCI inversion and OSU model sea surface currents field data in the Yellow Sea tidal wave system[J]. Haiyang Xuebao,2022, 44(7):93–108 doi: 10.12284/hyxb2022108
Citation: Cui He,Chen Jianyu,Cao Zhenyi, et al. Study on applicability of GOCI inversion and OSU model sea surface currents field data in the Yellow Sea tidal wave system[J]. Haiyang Xuebao,2022, 44(7):93–108 doi: 10.12284/hyxb2022108

黄海潮波系统下的GOCI反演及OSU模式海表流场数据适用性研究

doi: 10.12284/hyxb2022108
基金项目: 国家重点研发计划(2016YFC1400903);国家自然科学基金NSFC—浙江两化融合联合基金重点(U1609202);国家自然科学基金(42076216,41376184,40976109);卫星海洋环境动力学国家重点实验室资助项目(SOEDZZ2203)。
详细信息
    作者简介:

    崔赫(1999-),男,河南省商丘市人,研究方向为海表流场的遥感反演。E-mail:18221617727@163.com

    通讯作者:

    陈建裕,男,研究员,主要从事海洋遥感研究。E-mail:chenjianyu@sio.org.cn

  • 中图分类号: P731.21

Study on applicability of GOCI inversion and OSU model sea surface currents field data in the Yellow Sea tidal wave system

  • 摘要: 黄海呈现独有的地形条件,且该海域的潮波运动独具特征。本文利用静止海洋水色成像仪(Geostationary Ocean Color,GOCI)遥感反演和俄勒冈州立大学(Oregon State University,OSU)潮流模式分别获取了黄海海域的海表流场,基于该海域独特的潮波系统提出并识别潮波干涉区,进而对GOCI反演的流场做潮流提取,并对两种潮流数据作分区可用性评价,通过实测的漂流浮标数据验证评估。结果表明:利用GOCI反演和OSU潮流模式获取的海表流场具有一定程度的可靠性,GOCI反演的海表流场的流速平均相对大小误差值为0.77,OSU潮流模式获取的海表流场流速平均相对大小误差值为0.49;在靠近潮波干涉区的黄海中部海域,GOCI潮流数据与实测数据在方向上的一致性要优于OSU潮流数据,两者平均角度误差值分别为48.45°和63.10°;在远离潮波干涉区的黄海近岸海域,OSU潮流数据与实测数据在速度大小和方向上的一致性要优于GOCI潮流数据。
  • 图  1  研究区域及其水深地形

    从浅蓝色到深蓝色,水深范围约为10~160 m;多色线组为实测漂流浮标轨迹(数字为编号)

    Fig.  1  The study area and its bathymetry topography

    From light blue to dark blue, the water depth ranges from 10−160 m; the multi-color line group is the measured tracks of drifting buoys (numbers are codes)

    图  2  漂流浮标工作图

    Fig.  2  Woring drawing of drifting buoy

    图  3  MCC算法估算海表流场的示意图

    以首次可反演的流场为例,左侧与右侧的图像分别代表在同一海区、同一天8:30和9:30观测的卫星遥感影像;左图实框为模板窗口;右图实框为匹配窗口;虚框为模板窗口在搜索区域内相同位置的映射

    Fig.  3  A schematic diagram of the maximum correlation coefficient algorithm for estimating the sea surface currents field

    Take the first invertible currents field as an example, the images on the left and right represent satellite remote sensing images observed in the same sea area and on the same day at 8:30 and 9:30, respectively; the solid line box in the left figure is the template window ; the solid line box in the right figure is the matching window; the dotted line box is the mapping of the template window at the same position in the search area

    图  4  2012年8月5日7个时段的GOCI反演的海表流场分布

    Fig.  4  GOCI-derived sea surface currents field at seven intervals on 5 August 2012

    图  5  2012年8月5日7个时段的OSU模式计算的海表流场分布

    Fig.  5  OSU-derived sea surface currents field at seven intervals on 5 August 2012

    图  6  OSU模式模拟的黄海M2潮流椭圆分布

    蓝色(红色)表示顺(逆)时针旋转

    Fig.  6  Ellipse distribution of of the Yellow Sea M2 tidal current simulated by OSU model

    Blue (red) means clockwise (counter-clockwise) rotation

    图  7  OSU模式模拟的黄海M2分潮同潮

    实线为迟角,单位:(°);虚线为振幅,单位:cm;红点为无潮点位置分布

    Fig.  7  The Yellow Sea M2 with the same tide simulated by OSU model

    The solid line are the delay angle, unit is (°); the dashed lines are the amplitude, unit is cm; the red dots are the distribution of no-tide points

    图  8  漂流浮标海流与提取潮流的比较

    u分量正负分别代表东向和西向;v分量正负分别代表南向和北向

    Fig.  8  Comparison between the following currents of drifting buoy and the extracted tidal currents

    The positive and negative of u component represents east and west respectively; the positive and negative of v component represents south and north respectively

    图  9  2012年潮流数据分区对比

    红点表示选取案例的浮标点位

    Fig.  9  Zonal comparison of tidal current data in 2012

    The red dot represents the buoy point of the selected case

    图  10  黄海中部海域潮流数据对比

    红点M1和M2分别为两个无潮点的位置;蓝色虚框为选取的数据范围

    Fig.  10  Comparison of tidal currents data in the central Yellow Sea

    The red points M1 and M2 are the positions of two moisture-free points; the blue virtual box is the selected data range

    图  11  黄海近岸海域潮流数据对比

    红点M1和M2分别为两个无潮点的位置;蓝色虚框为选取的数据范围

    Fig.  11  Comparison of tidal currents data in the coastal Yellow Sea

    The red points M1 and M2 are the positions of two moisture-free points; the blue virtual box is the selected data range

    图  12  黄海中部海域潮流数据平均流速(a−c)和流向(d−f)

    流向图中半径从小到大的虚线圆代表8:30-15:30 7个时段(获得流速值的时间取自每个时间段的中间,如8:30-9:30的值由9:00的值表示)

    Fig.  12  The average currents velocity (a−c) and currents direction (d−f) of the tidal currents data in the central Yellow Sea

    The dotted circle with the radius from small to large in the flow graph represents the seven time periods from 8:30-15:30 (the time to obtain the currents velocity value is taken from the middle of each time period, Such as the value of 8:30-9:30 is represented by the value of 9:00)

    图  13  黄海近岸海域潮流数据平均流速(a−c)和流向(d−f)

    流向图中半径从小到大的虚线圆代表8:30-15:30 7个时段(获得流速值的时间取自每个时间段的中间,如8:30-9:30的值由9:00的值表示)

    Fig.  13  The average currents velocity (a−c) and currents direction (d−f) of the tidal currents data in the coastal Yellow Sea

    The dotted circle with the radius from small to large in the flow graph represents the seven time periods from 8:30-15:30 (the time to obtain the currents velocity value is taken from the middle of each time period, Such as the value of 8:30-9:30 is represented by the value of 9:00)

    图  14  GOCI反演流场1天的 7个时段日平均余流

    Fig.  14  Daily average residual currents in seven periods of the day of GOCI inversion current field

    图  15  GOCI反演流场3 d数据AAE和AME的平均值

    Fig.  15  Average of AAE and AME of three-day data in GOCI inversion current field

    图  16  3种不同示踪物的GOCI流场反演结果对比

    Fig.  16  Comparison of GOCI flow field inversion results of three different tracers

    表  1  OSU模式计算结果与实测值的比较

    Tab.  1  Comparison of OSU mode calculation results and actual measured values

    浮标编号站点数目实测平均流速/
    (m·s−1
    OSU平均流速/
    (m·s−1
    平均角度偏差/
    (°)
    11327111 7590.430.4144.16
    11341586630.450.5222.43
    11284131 3660.390.4642.85
    11351159300.310.3939.19
    11319011 7870.280.3449.90
    平均1 3010.370.4239.71
    下载: 导出CSV

    表  2  中部区域与近岸区域矢量值的比较

    Tab.  2  Comparison of vector values between the central region and the nearshore region

    所在区域矢量数目实测平均流速/
    (m·s−1
    OSU平均流速/
    (m·s−1
    平均角度偏差/
    (°)
    中部区域3000.210.3159.29
    近岸区域3000.690.6525.41
    下载: 导出CSV

    表  3  黄海中部与近岸海域GOCI与OSU潮流数据的AME值和AAE值

    Tab.  3  The AME value and AAE value of GOCI and OSU tidal current data in the central and coastal waters of the Yellow Sea

    日期GOCIOSU
    AME值AAE值/(°)AME值AAE值/(°)
    黄海中部海域6月27日0.8549.650.5538.07
    7月11日0.9157.200.3495.76
    7月16日1.0638.500.4855.48
    平均0.9448.450.4663.10
    黄海近岸海域8月2日1.8733.380.4231.62
    8月4日0.6163.120.3123.02
    8月5日0.7276.890.169.40
    平均1.0757.790.3021.34
    下载: 导出CSV

    表  4  3种不同示踪物的GOCI流场反演结果统计

    Tab.  4  Statistics of GOCI currents field inversion results of three different tracers

    日期时段Chl a浓度RrsTSM浓度
    流场矢量数目AME值AAE值/(°)流场矢量数目AME值AAE值/(°)流场矢量数目AME值AAE值/(°)
    6月27日11:30−12:3010101.1321.839551.2227.0410050.6713.62
    12:30−13:309761.9027.159520.5416.179811.5918.31
    7月11日11:30−12:304720.3013.994480.6213.514760.5315.34
    12:30−13:305800.256.444870.5016.105530.5212.54
    7月16日11:30−12:304670.3224.744640.7639.164840.3229.59
    12:30−13:305340.7315.955031.4224.145410.9912.34
    平均6730.7718.356340.8422.696730.7716.96
    下载: 导出CSV
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  • 收稿日期:  2021-12-20
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