Polar amplification comparison among Earth's three poles under different socioeconomic scenarios from CMIP6 surface air temperature.

ABSTRACT: The polar amplification (PA) has become the focus of climate change. However, there are seldom comparisons of amplification among Earth's three poles of Arctic (latitude higher than 60 °N), Antarctica (Antarctic Ice Sheet) and the Third Pole (the High Mountain Asia with the elevation higher than 4000 m) under different socioeconomic scenarios. Based on CMIP6 multi-model ensemble, two types of PA index (PAI) have been defined to quantify the PA intensity and variations, and PAI1/PAI2 is defined as the ratio of the absolute value of surface air temperature linear trend over Earth's three poles and that for global mean/over other regions except Earth's three poles. Arctic warms fastest in winter and weakest in summer, followed by the Third Pole, and Antarctica warms least. The similar phenome

SUBMITTER: Xie A 

PROVIDER: S-EPMC9529914 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature