To better monitor the vertical crustal movements and sea level changes around Greenland, multiple data sources were used in this paper, including global positioning system (GPS), tide gauge, satellite gravimetry, satellite altimetry, glacial isostatic adjustment (GIA). First, the observations of more than 50 GPS stations from the international GNSS service (IGS) and Greenland network (GNET) in 2007–2018 were processed and the common mode error (CME) was eliminated with using the principal component analysis (PCA). The results show that all GPS stations show an uplift trend and the stations in southern Greenland have a higher vertical speed. Second, by deducting the influence of GIA, the impact of current GrIS mass changes on GPS stations was analysed, and the GIA-corrected vertical velocity of the GPS is in good agreement with the vertical velocity obtained by gravity recovery and climate experiment (GRACE). Third, the absolute sea level change around Greenland at 4 gauge stations was obtained by combining relative sea level derived from tide gauge observations and crustal uplift rates derived from GPS observations, and was validated by sea level products of satellite altimetry. The results show that although the mass loss of GrIS can cause considerable global sea level rise, eustatic movements along the coasts of Greenland are quite complex under different mechanisms of sea level changes.

为了更好地监测格陵兰岛周围的垂直地壳运动和海平面变化，本文使用了多个数据源，包括全球定位系统（GPS），潮汐仪，卫星重力仪，卫星测高仪，冰川等静压调整（GIA）。首先，处理了2007-2018年来自国际GNSS服务（IGS）和格陵兰网络（GNET）的50多个GPS站的观测，并使用主成分分析（PCA）消除了共模误差（CME）。结果表明，所有的GPS站都呈上升趋势，而格陵兰南部的站的垂直速度较高。其次，通过减去GIA的影响，分析了当前GrIS质量变化对GPS站的影响，经GIA校正的GPS垂直速度与重力恢复和气候实验（GRACE）获得的垂直速度非常吻合。第三，结合潮汐仪观测的相对海平面和GPS观测仪的地壳上升速率，获得格陵兰岛4个测站周围的绝对海平面变化，并通过卫星测高仪的海平面积进行了验证。结果表明，尽管GrIS的质量损失会导致全球海平面显着上升，但在海平面变化的不同机制下，格陵兰海岸的欣快运动非常复杂。通过结合潮汐仪观测的相对海平面和GPS观测仪的地壳上升速率，获得了格陵兰岛4个测站周围的绝对海平面变化，并通过卫星测高仪的海平面积进行了验证。结果表明，尽管GrIS的质量损失会导致全球海平面显着上升，但在海平面变化的不同机制下，格陵兰海岸的欣快运动非常复杂。通过结合潮汐仪观测值得到的相对海平面和GPS观测仪得出的地壳上升率，获得了格陵兰岛4个测站周围的绝对海平面变化，并通过卫星测高仪的海平面积进行了验证。结果表明，尽管GrIS的质量损失会导致全球海平面显着上升，但在海平面变化的不同机制下，格陵兰海岸的欣快运动非常复杂。