基于MODIS数据的台湾海峡SST区域遥感监测模型研究  

STUDY ON LOCAL MONITORING MODEL FOR SST IN TAIWAN STRAIT BASED ON MODIS DATA

作　　者：张春桂[1] 任雍[2,3] 蔡义勇[1] 曾银东[4] 张星[5] 

机构地区：[1]福建省气象科学研究所,福建福州350001 [2]电子科技大学,四川成都610054 [3]福建省大气探测技术保障中心,福建福州350001 [4]福建省海洋环境与渔业资源监测中心,福建福州350003 [5]福建省气象局,福建福州350001

出　　处：《热带气象学报》2009年第1期73-81,共9页Journal of Tropical Meteorology

基　　金：国家自然科学基金资助项目(40175029);福建省科技厅重点项目(2006Y0008);福建省自然科学基金计划资助项目(W0750001);福建省气象局重大项目“福建沿海及台湾海峡气象防灾减灾服务体系”共同资助

摘　　要：采用SeaDAS模型开展基于MODIS数据的台湾海峡海洋表面温度SST遥感监测时,发现SeaDAS模型在台湾海峡中部SST的监测精度能够满足要求,但在台湾海峡近岸SST的监测误差明显偏大。为此根据2003—2006年台湾海峡近岸观测站点和台湾海峡中部浮标的实测SST数据,采用线性多通道算法建立台湾海峡SST区域遥感监测统计模型,并选择2007年30个SST数据样本对区域统计模型的监测效果进行验证分析。结果表明:在台湾海峡海域采用SeaDAS模型监测SST绝对误差的平均值是1.2℃,标准差是0.69℃,而采用区域统计模型监测SST绝对误差的平均值下降到0.89℃,标准差下降到0.52℃,区域统计模型优于SeaDAS模型。When sea surface temperature （SST） of the Taiwan Strait is monitored with a SST retrieval model of the SeaDAS software based on MODIS data, results are found that the monitored SST with the software for the middle of Taiwan Strait meets the requirements on precision for daily routines, but that for the coastal region of the strait is much more erroneous than normal. For this purpose, a local statistics monitoring model for SST in Taiwan Strait has been established with the linear multi-channel algorithm, based on the SST data measured at the coastal stations of Taiwan Strait and the buoys in the middle of it during 2003--2006, and the effect of the monitoring model has been validated and analyzed with 30 samples of SST for the year 2007. The results show that the average of absolute error of SST measured with the SeaDAS retrieval model is 1.2 ℃ and the standard error is 0.69 ℃ while and those with the local statistics monitoring model are 0.89 ℃ and 0.52℃, respectively. The local statistics monitoring model is superior over the SeaDAS retrieval model.

关 键 词：卫星遥感 SST 线性多通道算法 MODIS 台湾海峡 

分 类 号：S914[农业科学—水产科学] TP79[自动化与计算机技术—检测技术与自动化装置]