Sci Data. 2020 Oct 20;7(1):357. doi: 10.1038/s41597-020-00694-w.
Climate-related sea level changes in the world coastal zones result from the superposition of the global mean rise due to ocean warming and land ice melt, regional changes caused by non-uniform ocean thermal expansion and salinity changes, and by the solid Earth response to current water mass redistribution and associated gravity change, plus small-scale coastal processes (e.g., shelf currents, wind & waves changes, fresh water input from rivers, etc.). So far, satellite altimetry has provided global gridded sea level time series up to 10-15 km to the coast only, preventing estimation of sea level changes very close to the coast. Here we present a 16-year-long (June 2002 to May 2018), high-resolution (20-Hz), along-track sea level dataset at monthly interval, together with associated sea level trends, at 429 coastal sites in six regions (Northeast Atlantic, Mediterranean Sea, Western Africa, North Indian Ocean, Southeast Asia and Australia). This new coastal sea level product is based on complete reprocessing of raw radar altimetry waveforms from the Jason-1, Jason-2 and Jason-3 missions.
全球沿海地区与气候相关的海平面变化是海洋升温及陆地上的冰融化导致的海平面整体上升，与非均匀海洋热膨胀和盐度变化导致的区域性海平面变化，与当前水团重新分布和相关重力变化引起的固体地球响应，以及小尺度沿海过程（如架流、风和浪的变化、河流淡水输入等）共同作用的结果。到目前为止，卫星测高技术仅在距离海岸 10-15 公里的范围内提供了全球网格化海平面时间序列，这阻碍了对非常靠近海岸的海平面变化的估计。在这里，我们展示了一个长达 16 年（2002 年 6 月至 2018 年 5 月）、分辨率为 20Hz 的沿海地区海平面数据集，每月间隔一次，以及在六个地区（东北大西洋、地中海、西非、北印度洋、东南亚和澳大利亚）的 429 个沿海站点的相关海平面趋势。这个新的沿海海平面产品是基于对 Jason-1、Jason-2 和 Jason-3 任务的原始雷达测高波形的完整重新处理。
