Absolute sea level variability of Arctic Ocean in 1993–2018 from satellite altimetry and tide gauge observations

作     者：Yanguang Fu Yikai Feng Dongxu Zhou Xinghua Zhou Yanguang Fu;Yikai Feng;Dongxu Zhou;Xinghua Zhou

作者机构：First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Key Laboratory of Marine Environmental Survey Technology and ApplicationMinistry of Natural ResourcesGuangzhou 510310China College of Ocean Science and EngineeringShandong University of Science and TechnologyQingdao 266590China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2021年第40卷第10期

页      面：76-83页

核心收录：

学科分类：08[工学] 0816[工学-测绘科学与技术] 

基　　金：The Open Fund of Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resource under contract No.MESTA-2020-B005 the Shandong Provincial Natural Science Foundation under contract No.ZR2020QD087 the National Key R&D Program of China under contract Nos 2017YFC0306003 and 2016YFB0501703 the National Natural Science Foundation of China under contract Nos 42104035 and 41706115 

主　　题：Arctic Ocean absolute sea level variability sea level anomaly satellite altimetry tide gauge 

摘      要：Arctic absolute sea level variations were analyzed based on multi-mission satellite altimetry data and tide gauge observations for the period of 1993–*** range of linear absolute sea level trends were found-2.00 mm/a to 6.88 mm/a excluding the central Arctic,positive trend rates were predominantly located in shallow water and coastal areas,and negative rates were located in high-latitude areas and Baffin ***-derived results show that the average secular absolute sea level trend was(2.53±0.42)mm/a in the Arctic *** differences were presented between satellite-derived and tide gauge results,which are mainly due to low satellite data coverage,uncertainties in tidal height processing and vertical land movement(VLM).The VLM rates at 11 global navigation satellite system stations around the Arctic Ocean were analyzed,among which 6 stations were tide gauge colocated,the results indicate that the absolute sea level trends after VLM corrected were of the same magnitude as satellite altimetry *** calculating VLM is the primary uncertainty in interpreting tide gauge measurements such that differences between tide gauge and satellite altimetry data are attributable generally to VLM.