南海海洋观测台站海表温度资料的均一性检验与订正

发布时间：2018-01-02 06:25

本文关键词：南海海洋观测台站海表温度资料的均一性检验与订正　出处：《热带气象学报》2017年05期 　论文类型：期刊论文

【摘要】：采用最大惩罚T检验(Penalized Maximum T Test,PMT)方法,结合海洋台站元数据信息,选取临近气象站做为参考站,对中国南海9个海洋观测台站月平均SST资料序列进行均一性检验,在充分考虑区域性气候变化因素的影响下,对检验结果进行气候合理性分析并对不连续点进行订正。结果表明:(1)通过多种数据的相关性比较和分析发现,临近气象站的气温资料序列是南海台站SST资料订正最优的参考序列;(2)平均每个海洋台站SST资料序列存在1~2个不连续点,其中站址变迁、仪器变更和环境变化对均一性的影响较大;(3)订正后的南海SST序列质量有大幅提高,表明南海SST具有更明显的增暖趋势。
[Abstract]:The maximum punishment for T test (Penalized Maximum T Test, PMT) method, combined with the marine station metadata information, selected near the weather station as a reference station for the homogeneity test of the South China Sea Chinese 9 marine observation stations monthly mean SST data series, considering the effects of regional climate change factors, analyze the rationality of climate the test results and correction on the discontinuous points. The results showed that: (1) the correlation of various data comparison and analysis found that the temperature data of meteorological stations near the sequence is a reference sequence of South China Sea station SST data correction optimal; (2) the average oceanic SST data sequence 1~2 discontinuous points, including site change, change and influence of the instrument of environmental change on the homogeneity of the larger; (3) SST in the South China Sea sequence quality after the correction is greatly improved, that the South China Sea SST has a more significant warming trend.

【作者单位】：国家海洋信息中心;天津市滨海新区气象局;
【基金】：国家重点研发计划(2016YFC1401903) 国家自然科学基金面上项目(41376014) 国家科技支撑计划课题(2014BAB12B02) 天津市科技支撑计划项目(14ZCZDSF00012)共同资助
【分类号】：P717
【正文快照】： 1引言中国南海既是全球最典型的季风区,又受东亚局地Hadley环流的影响[1-2],南海SST的年际变化对气候变化研究有重要意义[3-5]。气候资料是气候变化研究的基础,而目前近海气候变化研究在一定程度上忽视了资料非均一性的影响,使结论包含非气候变化因素,致使部分结论存在一定的

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