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Studies on monitoring of marginal sea using satellite and monitoring of the Kuroshio variation

边缘海卫星监测及黑潮变化监测研究

基本信息

批准号：
11205208
负责人：
KAWAMURA Hiroshi
金额：
$ 14.66万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11205208/
关键词：
Japan Sea sea surface temperature the Kuroshio XBT ADCP altimeter mesoscale eddy heat transport 黒潮流軸 AVHRR XCTD 渦雲域判別

项目摘要

Studies made in 2002 are as follows. (1)We investigated the spatio-temporal correlation analyses for the sea surface temperature (SST) data free from clouds, and we also developed the advanced method generating new generation SST(2)We prepared the daily and cloud-free SST dataset for September and October 2000, which was used in the numerical model for prediction. This dataset was archived in the CD-ROM recording the present study results.(3)Under the cooperative study with Japan Marine Science and Technology Center, we made ADCP monitoring through a year by a ferry regularly shuttling between Tokyo and Ogasawara Islands.(4)Using the training vessel, "Miyagi-Maru" belonging to Miyagi Prefectural Education Committee, we made high density XBT monitoring three times a year between Hawaii and Japan. Using these data together with the PX-37 data, we estimated heat and freshwater transports crossing these lines.(5)We investigated an interaction between mesoscale eddies and the Kuroshio path variation using TOPEX POSEIDEON altimeter data. It was found that the collision of eddy to the Kuroshio caused the small meander of the Kuroshio.(6)Detailed analyses of the XBT data showed that several Japanese XBT converters were suffered from so-called "Bowing phenomenon". It was also found that the XBT data from the sea surface to 4m were suffered from the transient response of the XBT measurement system.

2002年所做的研究如下。(1)研究了无云海表温度(SST)资料的时空相关分析，发展了新一代SST的时空相关分析方法。(2)编制了2000年9月和10月的逐日无云SST资料集，用于数值模式预报。(3)在与日本海洋科学技术中心的合作研究下，我们利用一艘定期往返于东京和小川群岛之间的渡轮，对ADCP进行了为期一年的监测。(4)利用宫城县教育委员会的“宫城丸”号训练船，我们每年进行三次高密度的XBT监测。利用TOPEX Poseideon高度计资料研究了中尺度涡旋与黑潮路径变化之间的相互作用。结果表明，涡流与黑潮的碰撞导致了黑潮的小弯曲。(6)对XBT数据的详细分析表明，日本的几个XBT转化器都出现了所谓的“弯曲现象”。研究还发现，从海面到4m的XBT数据受到XBT测量系统的瞬变响应的影响。