Journal
ENVIRONMENTAL RESEARCH LETTERS
Volume 9, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1748-9326/9/9/094007
Keywords
vegetation feedback; Arctic warming; global climate model; sea ice; climate feedback
Funding
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2012M1A2A2671852]
- National Research Foundation of Korea - Korean Government (MEST) [NRF-2011-0021069, PN13063]
- Swedish Research Council (VR)
- National Research Foundation of Korea [2011-0021069, 22A20130012068] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Observations and modeling studies indicate that enhanced vegetation activities over high latitudes under an elevated CO2 concentration accelerate surface warming by reducing the surface albedo. In this study, we suggest that vegetation-atmosphere-sea ice interactions over high latitudes can induce an additional amplification of Arctic warming. Our hypothesis is tested by a series of coupled vegetation-climate model simulations under 2xCO(2) environments. The increased vegetation activities over high latitudes under a 2xCO(2) condition induce additional surface warming and turbulent heat fluxes to the atmosphere, which are transported to the Arctic through the atmosphere. This causes additional sea-ice melting and upper-ocean warming during the warm season. As a consequence, the Arctic and high-latitude warming is greatly amplified in the following winter and spring, which further promotes vegetation activities the following year. We conclude that the vegetation-atmosphere-sea ice interaction gives rise to additional positive feedback of the Arctic amplification.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available