《海洋预报》｜渤海海域海上观测站逐时气温和气压的质量控制分析国家海洋预报台2023-08-17 19:05国家海洋预报台2023-08-17 19:05 - 海

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渤海海域海上观测站逐时气温和气压的质量控制分析

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http://www.hyyb.org.cn/Magazine/Show.aspx?ID=3487

读书小笔记

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作者：王敏1 2 徐梅1 年飞翔1 任建玲1 黄纯玺1 郭阳1 勾志竟1

单位：

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1. 天津市气象信息中心, 天津 300074;

2. 广东省韶关市气象局, 广东 韶关 512026

分类号：P732.1

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出版年·卷·期（页码）：2023·40·第三期（97-103）

摘要：为有效提高海洋观测质量，选取渤海海域2019年19个海上自动气象观测站的逐时气温和气压，利用界限值检查、气候变化范围检查、内部一致性检查、时间一致性检查和空间一致性检查方法，对数据进行质量控制分析。结果表明：逐时气压的数据质量优于逐时气温，所有站点逐时气压数据的可用率均在99%以上，而3个站点的逐时气温数据质量较差，可用率分别为88.9%、91.3%和92.3%，错误主要表现为连续一段时间内气温出现异常。经过质量控制剔除错误值后，站点观测资料数据与ERA5再分析资料的相关系数均有所提升；经质量控制后的观测气温和气压的均方根误差减小，相关系数增大。因此，经过上述质量控制方法可有效剔除不合理数值，避免其由于直接使用带来的偏差。

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关键词：质量控制 逐时数据 海上观测站 气温 气压

Abstract：To effectively advance the quality of marine observation data, quality control analysis are applied to the hourly air temperature and pressure observations from 19 marine stations in the Bohai Sea in 2019. The quality control methods include maximum-minimum checking, climatological changing range checking, internal consistency checking, temporal consistency checking and spatial consistency checking. The results demonstrate that: the data quality of the observed pressure is better than that of the observed temperature, data availability rate of hourly pressure is above 99% for all the stations, however data availability rate of hourly temperature at 3 of the stations are relative low, with values of 88.9%、 91.3% and 92.3%, and the abnormal temperature data appears in a continuous period. Comparison between the hourly observations and ERA5 reanalysis data shows that, after applying the quality control analysis, the root mean square error between the observations and reanalysis data has decreased, and their correlation coefficient has increased. Therefore the quality control methods can effectively eliminate the unreasonable value of data.

Key words：quality control; hourly data; marine observation station; temperature and pressure

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