Evaluation of the relationships and uncertainties of airborne and ground-based sea ice surface temperature measurements against remotely sensed temperature records

作     者：Pei Fan Xi Zhao Meng Qu Zhongnan Yan Ying Chen Zeyu Liang Xiaoping Pang 

作者机构：Chinese Antarctic Center of Surveying and MappingWuhan UniversityWuhanPeople’s Republic of China School of Geospatial Engineering and ScienceSun Yat-Sen University & Southern Marine Science and Engineering Guangdong LaboratoryZhuhaiPeople’s Republic of China Key Laboratory of Polar ScienceMNRPolar Research Institute of ChinaShanghaiPeople’s Republic of China State Key Laboratory of Information Engineering in SurveyingMappingand Remote SensingWuhan UniversityWuhanPeople’s Republic of China Hubei Luojia LaboratoryWuhanPeople’s Republic of China 

出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)

年 卷 期：2022年第15卷第1期

页      面：1989-2005页

核心收录：

学科分类：050204[文学-德语语言文学] 0502[文学-外国语言文学] 05[文学] 

基　　金：supported by the National Key Research and Development Program of China(grant number 2021YFC2801300) the National Natural Science Foundation of China(grant number 41876223) the Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)(grant number 311021008) the Shanghai Science and Technology Development Funds(grant number 22YF1453600) 

主　　题：Sea ice surface temperature airborne measurement in situ observation quality assessment the Arctic Ocean 

摘      要：Sea ice surface temperature(IST)is an important indicator of environmental changes in the Arctic *** this study,the relative performance of four mainstream IST records,*** IST,infrared radiometer measured IST(IR IST),longwave radiation derived IST(LWR IST),and snow and ice mass balance array buoy derived IST(Buoy IST),were evaluated against the MODIS IST ***,standard deviation(STD),and root mean square error(RMSE)were used to evaluate the data *** revealed that airborne IST had the best accuracy,which was 0.21 K colder than MODIS IST,with STD of 1.46 K and RMSE of 1.47 ***-based ISTs were biased with each other but all warmer than the MODIS *** IR IST had the best overall accuracy(bias=0.55 K;STD=1.52 K;RMSE=1.61 K),while the LWR IST was the noisiest measurement with the largest outlier data ***,co-located IR and LWR ISTs were more consistent than any type of evaluated IST against MODIS IST(correlation coefficient=0.99).Airborne and IR ISTs are thus the premier choice for monitoring the rapidly changing Arctic sea ice,together with satellite observations.