Abermann Jakob, Hansen Birger, Lund Magnus, Wacker Stefan, Karami Mojtaba, Cappelen John
Asiaq, Greenland Survey, Qatserisut 8, 3900, Nuuk, Greenland.
Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark.
Ambio. 2017 Feb;46(Suppl 1):3-11. doi: 10.1007/s13280-016-0861-y.
We investigated air temperature and pressure gradients and their trends for the period 1996-2014 in Greenland and compared these to other periods since 1958. Both latitudinal temperature and pressure gradients were strongest during winter. An overall temperature increase up to 0.15 °C year was observed for 1996-2014. The strongest warming happened during February at the West coast (up to 0.6 °C year), weaker but consistent and significant warming occurred during summer months (up to 0.3 °C year) both in West and East Greenland. Pressure trends on a monthly basis were mainly negative, but largely statistically non-significant. Compared with other time windows in the past six decades, the period 1996-2014 yielded an above-average warming trend. Northeast Greenland and the area around Zackenberg follow the general pattern but are on the lower boundary of observed significant trends in Greenland. We conclude that temperature-driven ecosystem changes as observed in Zackenberg may well be exceeded in other areas of Greenland.
我们研究了1996年至2014年格陵兰岛的气温和气压梯度及其变化趋势，并将其与1958年以来的其他时期进行了比较。冬季的纬度温度和气压梯度最强。1996年至2014年期间，观测到总体气温以每年0.15°C的速度上升。最强的变暖发生在2月的西海岸（每年高达0.6°C），格陵兰岛西部和东部的夏季月份也出现了较弱但持续且显著的变暖（每年高达0.3°C）。每月的气压趋势主要为负，但在很大程度上在统计上不显著。与过去六十年的其他时间段相比，1996年至2014年期间呈现出高于平均水平的变暖趋势。格陵兰岛东北部和扎克伯格周围地区遵循总体模式，但处于格陵兰岛观测到的显著趋势的下限。我们得出结论，在扎克伯格观测到的由温度驱动的生态系统变化在格陵兰岛的其他地区很可能更为明显。
