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3套不同的SST再分析数据与中国近海浮标观测的对比研究

王晨琦 李响 张蕴斐 祖子清 张润宇

王晨琦,李响,张蕴斐,等. 3套不同的SST再分析数据与中国近海浮标观测的对比研究[J]. 海洋学报,2020,42(3):118–128,doi:10.3969/j.issn.0253−4193.2020.03.011
引用本文: 王晨琦,李响,张蕴斐,等. 3套不同的SST再分析数据与中国近海浮标观测的对比研究[J]. 海洋学报,2020,42(3):118–128,doi:10.3969/j.issn.0253−4193.2020.03.011
Wang Chenqi,Li Xiang,Zhang Yunfei, et al. A comparative study of three SST reanalysis products and buoys data over the China offshore area[J]. Haiyang Xuebao,2020, 42(3):118–128,doi:10.3969/j.issn.0253−4193.2020.03.011
Citation: Wang Chenqi,Li Xiang,Zhang Yunfei, et al. A comparative study of three SST reanalysis products and buoys data over the China offshore area[J]. Haiyang Xuebao,2020, 42(3):118–128,doi:10.3969/j.issn.0253−4193.2020.03.011

3套不同的SST再分析数据与中国近海浮标观测的对比研究

doi: 10.3969/j.issn.0253-4193.2020.03.011
基金项目: 国家重点研发计划(2017YFA0604203);全球变化与海气相互作用专项(GASI-IPOVAI-06);国家自然科学基金(41806003)。
详细信息
    作者简介:

    王晨琦(1991-),男,山西省运城市人,主要从事海气相互作用研究。E-mail:wangcq@nmefc.cn

    通讯作者:

    李响(1986-),男,江苏省响水县人,主要从事海气相互作用研究。E-mail:lixiang@nmefc.cn

  • 中图分类号: P731.11

A comparative study of three SST reanalysis products and buoys data over the China offshore area

  • 摘要: 基于自然资源部浮标数据,通过分析均值差、均方根误差、相关系数和标准差偏差4个统计量,检验了2018年7月1日至8月6日全时段及该时段内3个台风(1808号台风“玛利亚”、1810号台风“安比”、1812号台风“云雀”)过境期间,3套海表面温度(Sea Surface Temperature,SST)再分析资料(OISST、OSTIA SST、RTG SST)在中国近海区域的可靠性。对比结果表明,在全时段内,3套SST再分析资料都能在一定程度上反映中国近海SST的基本状况,其中OSTIA SST资料同浮标实测SST数据的均值差为0.12℃、相关系数为0.94,均优于OISST资料(均值差为–0.85℃、相关系数为0.90)和RTG SST资料(均值差为–0.17℃、相关系数为0.86)。通过对比单个浮标数据发现,相较约80%的MF浮标实测SST数据,OSTIA SST资料都显著优于RTG SST资料和OISST资料,具有较高的可信度。在台风过境期间,较之RTG SST资料和OISST资料,OSTIA SST资料同大部分浮标实测数据的均值差绝对值及均方根误差更小、相关系数更大,表明在高海况条件下,OSTIA SST资料能更真实地反映中国近海SST的基本状况。
  • 图  1  本文使用的10个中国近海MF浮标位置示意图

    Fig.  1  Locations of 10 MF buoys over the China offshore area

    图  2  2018年7月1日至8月6日平均的OSTIA SST资料(a)、RTG SST资料(b)、OISST资料(c)同MF浮标SST实测数据的散点图及相关系数

    Fig.  2  The scatterplots and correlation coefficients between OSTIA SST dataset (a), RTG SST dataset (b), OISST dataset (c) and the MF buoys SST data from July 1, 2018 to August 6, 2018

    图  3  2018年7月1日至8月6日的OSTIA SST资料、RTG SST资料、OISST资料同MF浮标实测SST数据的相关系数时间序列

    Fig.  3  Time series plot of correlation coefficients between OSTIA SST dataset, RTG SST dataset, OISST dataset and the MF buoys SST data from July 1, 2018 to August 6, 2018

    图  4  2018年7月1日至8月6日的MF浮标SST实测数据、OSTIA SST资料、RTG SST资料及OISST资料的时间序列

    Fig.  4  Time series plots of the MF buoys SST data, OSTIA SST dataset, RTG SST dataset and OISST dataset from July 1, 2018 to August 6, 2018

    图  5  2018年7月1日至8月6日期间,经过MF浮标所处位置附近海域的3个台风个例示意图

    Fig.  5  Three cases of typhoon which passed by the surrounding locations of MF buoys during July 1, 2018 to August 6, 2018

    图  6  1808号台风期间,OSTIA SST资料、RTG SST资料、OISST资料及浮标MF06002(a)和浮标MF06006(b)的SST值柱状图

    Fig.  6  The bar charts of OSTIA SST dataset, RTG SST dataset and OISST dataset with the buoy MF06002 (a), buoy MF06006 (b) during the Typhoon 1808 period

    图  7  1810号台风期间,OSTIA SST资料、RTG SST资料、OISST资料及浮标MF05001(a)、浮标MF05003(b)、浮标MF06001(c)、浮标MF07001(d)的SST值柱状图

    Fig.  7  The bar charts of OSTIA SST dataset, RTG SST dataset and OISST dataset with the buoy MF05001 (a), buoy MF05003 (b), buoy MF06001 (c) and buoy MF07001 (d) during the Typhoon 1810 period

    图  8  1812号台风期间,浮标MF05001(a)、浮标MF05003(b)、浮标MF06001(c)、浮标MF07001(d)及OSTIA SST资料、RTG SST资料、OISST资料的SST值柱状图

    Fig.  8  The bar charts of OSTIA SST datase, RTG SST dataset and OISST dataset with the buoy MF05001 (a), buoy MF05003 (b), MF06001 (c) and buoy MF07001 (d) during the Typhoon 1812 period

    表  1  2018年7月1日至8月6日的OSTIA SST资料、RTG SST资料、OISST资料分别同MF浮标SST实测数据的均值差、均方根误差、相关系数及标准差偏差

    Tab.  1  The mean bias, root mean square error, correlation coefficient and standard deviation bias between OSTIA SST dataset, RTG SST dataset, OISST dataset and the MF buoys SST data from July 1, 2018 to August 6, 2018

    MF04001MF04003MF05001MF05003MF06001
    OSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISST
    均值差/℃−0.210.17−1.30−0.42−0.89−1.770.04−0.28−1.460.330.47−0.94−0.08−0.64−1.26
    均方根误差/℃1.031.111.810.991.472.000.390.561.581.041.391.680.260.791.38
    相关系数0.890.860.800.880.760.850.930.890.830.870.750.690.960.830.75
    标准差偏差/℃0.02−0.46−0.460.09−0.24−0.14−0.06−0.13−0.17−0.56−0.15−0.65−0.15−0.02−0.15
    MF06002MF06006MF06562MF07001MF09162
    OSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISST
    均值差/℃−0.07−0.37−0.670.120.23−0.220.700.51−0.330.20−0.58−0.710.59−0.350.16
    均方根误差/℃0.310.610.830.411.090.650.791.080.660.550.990.940.721.0900.59
    相关系数0.960.950.910.920.780.870.980.950.960.920.720.880.720.760.69
    标准差偏差/℃−0.090.280.10−0.180.190.100.100.660.24−0.31−0.33−0.420.150.890.32
    下载: 导出CSV

    表  2  1808号台风期间,OSTIA SST资料、RTG SST资料、OISST资料分别同浮标MF06002及浮标MF06006的SST实测数据的均值差、均方根误差、相关系数及标准差偏差

    Tab.  2  The mean bias, root mean square error, correlation coefficient and standard deviation bias between OSTIA SST dataset, RTG SST dataset, OISST dataset and the SST measurement data of buoy MF06002 and buoy MF06006 during the Typhoon 1808 period

    MF06002MF06006
    OSTIARTGOISSTOSTIARTGOISST
    均值差/℃0.25−0.94−0.960.22−0.40−0.74
    均方根误差/℃0.341.041.060.290.520.80
    相关系数0.900.760.860.850.640.61
    标准差偏差/℃−0.140.230.350.040.110.02
    下载: 导出CSV

    表  3  1810号台风期间,OSTIA SST资料、RTG SST资料、OISST资料分别同浮标MF05001、浮标MF05003、浮标MF06001及浮标MF07001的SST实测数据的均值差、均方根误差、相关系数及标准差偏差

    Tab.  3  The mean bias, root mean square error, correlation coefficient and standard deviation bias between OSTIA SST dataset, RTG SST dataset, OISST dataset and the SST measurement data of buoy MF05001, MF05003, MF06001 and MF07001 during the Typhoon 1810 period

    MF05001MF05003MF06001MF07001
    OSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISST
    均值差/℃0.120.02−1.430.951.900.450.17−0.22−0.950.29−0.30−0.70
    均方根误差/℃0.530.531.511.642.511.920.260.521.020.640.800.76
    相关系数0.800.880.850.830.60−0.130.990.530.760.950.880.97
    标准差偏差/℃−0.23−0.48−0.27−1.28−1.61−1.66−0.20−0.410.01−0.58−0.75−0.21
    下载: 导出CSV

    表  4  1812号台风期间,OSTIA SST资料、RTG SST资料、OISST资料分别同浮标MF05001、浮标MF05003、浮标MF06001及浮标MF07001的SST实测数据的均值差、均方根误差、相关系数及标准差偏差

    Tab.  4  The mean bias, root mean square error, correlation coefficient and standard deviation bias between OSTIA SST dataset, RTG SST dataset, OISST dataset and the SST measurement data of buoy MF05001, MF05003, MF06001 and MF07001 during the Typhoon 1812 period

    MF05001MF05003MF06001MF07001
    OSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISSTOSTIARTGOISST
    均值差/℃0.11−0.33−2.120.400.87−1.50−0.21−0.61−1.780.25−0.49−1.12
    均方根误差/℃0.270.452.180.921.061.730.230.631.830.390.631.17
    相关系数0.950.810.580.920.890.510.930.890.850.920.760.87
    标准差偏差/℃−0.22−0.180.15−0.88−0.56−0.23−0.05−0.030.33−0.29−0.340.12
    下载: 导出CSV
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  • 收稿日期:  2019-01-31
  • 修回日期:  2019-07-24
  • 网络出版日期:  2020-11-18
  • 刊出日期:  2020-03-25

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