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  • 高清清,李用留,吉会峰,曹兵,丁言者,徐淑雯,徐常三.基于观测和再分析资料的气温、海表温度在江苏海域的比较分析[J].海洋开发与管理,2024,41(2):131-140    
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基于观测和再分析资料的气温、海表温度在江苏海域的比较分析
高清清,李用留,吉会峰,曹兵,丁言者,徐淑雯,徐常三
自然资源部南通海洋中心
摘要:
文章利用海洋台站观测资料,对3类再分析资料的气温、海表温度数据在江苏海域进行比较分析。结果表明:总体而言,气温、海表温度的再分析数据与观测数据均具有很高的一致性,且海表温度再分析数据与观测数据的一致性高于气温再分析数据;在3种再分析资料中,ERA5的可靠性优于JRA-55和NCEP;在离岸较远的外磕脚测点,再分析数据与观测数据的一致性高于另2个测点;在台风影响期间,吕四测点、外磕脚测点的再分析数据与观测数据更为接近,在更近岸的连云港测点,再分析数据与观测数据的差异更大;在冷空气造成的气温下降期间,再分析数据与观测数据的差异较小,但在气温缓步回升期间,吕四测点、外磕脚测点的再分析数据明显高于观测数据;在冷空气影响过程中,再分析数据反映的海表温度下降幅度明显低于观测数据。本研究可为再分析资料在江苏海域的适用性和可信度提供评估依据。
关键词:  气温  海表温度  再分析资料  江苏海域
DOI:10.20016/j.cnki.hykfygl.2024.02.009
投稿时间:2023-05-31修订日期:2024-01-29
基金项目:江苏省自然资源发展专项资金项目(JSZRHYKJ202009).
Preliminary Comparison and Analysis of Air Temperature and SST Based on Reanalysis and Observation Data over Jiangsu Sea Area
GAO Qingqing,LI Yongliu,JI Huifeng,CAO Bing,DING Yanzhe,XU Shuwen,XU Changsan
Nantong Marine Center,MNR
Abstract:
The paper compared three reanalysis data by the air temperature and SST based on the observation data over the Jiangsu sea area. The results showed that the air temperature and SST of reanalysis data were highly consistent with the observation data, moreover, the consistency of SST was better. Among the three reanalysis data, the reliability of ERA5 was better than that of JRA-55 and NCEP. The consistency between the reanalysis data and the observation data was highest in Waikejiao observation station which was the farther offshore observation station. During periods of typhoon influence, the reanalysis data were closer to the observation data at Lyusi and Waikejiao observation station. At the Lianyungang observation station closer to the shore, there was a greater difference between the reanalysis data and the observation data. During the period of air temperature drop caused by cold air, the difference between reanalysis data and observation data was smaller. While during the temperature recovery period, the reanalysis data was significantly higher than the observation data at Lyusi and Waikejiao observation station. During the influence of cold air, the reduction of SST reflected by the reanalysis data was significantly lower than the observation data. The results provide baseline for the study on the applicability and reliability of reanalysis data in Jiangsu sea area.
Key words:  Air temperature,Sea surface temperature,Reanalysis data,Jiangsu sea area