基于Landsat-8/TIRS的红沿河核电基地海表温度反演算法比对  

Comparative Study on Sea Surface Temperature Retrieval Methods of Hongyanhe Nuclear Power Plant Based on Landsat-8/TIRS

作　　者：张永红[1,2] 陈瀚阅[3] 陈宜金[1] 朱利[4] 殷亚秋[5] 杨红艳[1,2] 侯海倩 

机构地区：[1]中国矿业大学(北京),北京100083 [2]中国科学院遥感与数字地球研究所,北京100101 [3]福建农林大学,福州350002 [4]环境保护部卫星环境应用中心,北京100094 [5]中国国土资源航空物探遥感中心,北京100083

出　　处：《航天返回与遥感》2015年第5期96-104,共9页Spacecraft Recovery & Remote Sensing

基　　金：福建教育科技项目(JA14126);国家自然科学基金(41401399)

摘　　要：文章以红沿河核电基地周围海域为研究区,利用Landsat-8热红外遥感影像(thermal infrared sensor,TIRS),分别对辐射传输方程法、单窗算法、普适性单通道法和Qin劈窗算法等四种算法进行海表温度反演模型参数修订与数据处理。通过与实际观测温度数据进行精度验证与比对分析,寻求基于Landsat-8/TIRS数据的区域最佳温度反演算法。结果表明,辐射传输方程法均方根误差在1K以内,反演精度最高;Qin劈窗算法次之,均方根误差达到3K左右,反演精度较差,整体反演温度偏高;单窗算法和普适性单通道法均方根误差高于3K,反演精度最差,整体反演温度偏低。辐射传输方程法可作为红沿河核电海域温排水遥感监测首选算法。Based on the images from Landsat-8 thermal infrared sensor in the study area of Hongyanhe nuclear power station, this paper presents a novel approach to revising and data-processing the parameters of sea surface temperature retrival model for the thermal radiative transfer equation algorithm, mono window algorithm and general applicability of single channel algorithm and Qin split window algorithm respectively. The results are compared with the actual measured temperature data for accuracy verification and comparison analysis to seek the best temperature retrieval algorithm in the study area based on the Landsat-8/TIRS data. The results show that the root mean square error of the thermal radiative transfer equation algorithm is within 1K, its retrieval accuracy is the best of all. Qin split-window algorithm is the second one, but its retrieval precision reaches about 3K, retrieval accuracy is worse, and the overall retrieval temperature is also very high. The retrieval precision of the mono-window algorithm and generalized single channel exceeds 3K, its retrieval accuracy are the worst of all, and the overall retrieval temperature are very low. So radiative transfer equation algorithm can be used as the preferred algorithm for Hongyanhe nuclear power plant thermal discharge monitoring.

关 键 词：海表温度 温度反演 算法 热红外遥感 陆地卫星8 卫星应用 

分 类 号：P423.7[天文地球—大气科学及气象学]