Frederikse Thomas, Riva Riccardo, Kleinherenbrink Marcel, Wada Yoshihide, van den Broeke Michiel, Marzeion Ben
Department of Geoscience and Remote Sensing Delft University of Technology Delft Netherlands.
NASA Goddard Institute for Space Studies New York City New York USA; Center for Climate Systems Research Columbia University New York City New York USA; Department of Physical Geography Utrecht University Utrecht Netherlands; International Institute for Applied Systems Analysis Laxenburg Austria.
Geophys Res Lett. 2016 Oct 28;43(20):10864-10872. doi: 10.1002/2016GL070750. Epub 2016 Oct 24.
Long-term trends and decadal variability of sea level in the North Sea and along the Norwegian coast have been studied over the period 1958-2014. We model the spatially nonuniform sea level and solid earth response to large-scale ice melt and terrestrial water storage changes. GPS observations, corrected for the solid earth deformation, are used to estimate vertical land motion. We find a clear correlation between sea level in the North Sea and along the Norwegian coast and open ocean steric variability in the Bay of Biscay and west of Portugal, which is consistent with the presence of wind-driven coastally trapped waves. The observed nodal cycle is consistent with tidal equilibrium. We are able to explain the observed sea level trend over the period 1958-2014 well within the standard error of the sum of all contributing processes, as well as the large majority of the observed decadal sea level variability.
研究了1958年至2014年期间北海及挪威沿岸海平面的长期趋势和年代际变化。我们对空间不均匀海平面以及固体地球对大规模冰融化和陆地水储量变化的响应进行了建模。经固体地球形变校正后的全球定位系统（GPS）观测数据用于估算陆地垂直运动。我们发现北海及挪威沿岸的海平面与比斯开湾和葡萄牙以西公海的比容变化之间存在明显的相关性，这与风生沿岸捕获波的存在相一致。观测到的节点周期与潮汐平衡一致。我们能够在所有影响过程总和的标准误差范围内很好地解释1958年至2014年期间观测到的海平面趋势，以及大部分观测到的年代际海平面变化。
