摘要
2007年秋季,非同步观测的南黄海表层温度显示,青岛外海出现了高温区及"锋面"现象,而同期的卫星观测的SST图像并未出现此种特征。对调查过程和测区内同期的锚系浮标站水温数据分析发现,青岛外海出现的高温区及"锋面"现象是由于大面观测时间不连续,且中间有寒潮侵袭所致。根据浮标站的长期水温资料,获得不同时间的降温梯度,对南黄海大面调查的温度进行准同步修订,从而"锋面"现象消失。修正后的表层温度分布,与同一天NECP提供的SST分布趋于一致。文章所提出的观测资料的同步化处理方法对单船非同步大面调查的温度数据分析有很好借鉴作用。
There seem to be a high temperature area and a frontal phenomenon in the offshore area of Qing-dao,as it is shown by means of the surface temperature data which were observed in the Southern Yellow Sea in autumn 2007and have not been synchronized.However,such features can not been found out in the simultaneous satellite images for monitoring SST.Furthermore it is learnt from analysis of both the in situ survey process and the simultaneous temperature data of both the mooring buoy in the surveyed area that the high temperature area and the frontal phenomenon in the Qingdao offshore area can be attributed to both the time discontinuty of the large-area observation and the the cold air attack in the observational peri-od.Based on the long-term water temperature data from the mooring buoy,the time gradient of the water temperature cooling are estimated and used to revise in a way toward the synchronization of the in situ ob-servational data.Therefore the false frontal phenomena can be eliminated.The revised SST pattern is con-sistent with that from NCEP.The approach to data synchronization,which is described in this paper,might be used as reference for analysis of the single-ship and large-area data acquirement.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2010年第3期299-304,共6页
Advances in Marine Science
基金
我国近海海洋综合调查与评价专项课题--ST03区块水体调查与研究(908-01-ST03)
乳山湾外海低氧区水文调查(A908-122)
关键词
温度
大面观测
准同步修订
SST
Water temperature
large-area observation
revision approaching to synchronization
SST
