Open AccessIncreasing occurrence of heat waves in the terrestrial Arctic
Author(s) -
Srdjan Dobričić,
Simone Russo,
Luca Pozzoli,
J. R. Wilson,
E. Vignati
Publication year - 2020
Publication title -
environmental research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.37
H-Index - 124
ISSN - 1748-9326
DOI - 10.1088/1748-9326/ab6398
Subject(s) - arctic , arctic ecology , archipelago , heat wave , arctic vegetation , the arctic , environmental science , climatology , arctic dipole anomaly , arctic geoengineering , arctic sea ice decline , oceanography , physical geography , climate change , geography , atmospheric sciences , geology , arctic ice pack , tundra , antarctic sea ice
Heat waves in the Arctic may strongly impact environment and local communities. Recently several indices have been proposed for monitoring environmental changes in the Arctic, but heat waves have not been addressed. By applying a structured approach for evaluating occurrences of periods with exceptionally high temperatures, this study demonstrates that in the last decades there was an increase of heat wave occurrences over the terrestrial Arctic. The increase is mainly over the Canadian Arctic Archipelago and Greenland that are surrounded by ocean undergoing a sea-ice melting trend, while the Eurasian Arctic shows no significant change in heat wave occurrence. Since 2002 the probability of experiencing heat waves in the Arctic has been similar or even higher than in the middle and low latitudes and heat waves have already started to increasingly threaten local vegetation, ecology, human health and economy.