Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4142-2 |
Impact of dynamic vegetation phenology on the simulated pan-Arctic land surface state | |
Teufel, Bernardo1,2; Sushama, Laxmi1,2; Arora, Vivek K.3; Verseghy, Diana4 | |
2019 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:373-388 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | The pan-Arctic land surface is undergoing rapid changes in a warming climate, with near-surface permafrost projected to degrade significantly during the twenty-first century. Vegetation-related feedbacks have the potential to influence the rate of degradation of permafrost. In this study, the impact of dynamic phenology on the pan-Arctic land surface state, particularly near-surface permafrost, for the 1961-2100 period, is assessed by comparing two simulations of the Canadian Land Surface Scheme (CLASS)one with dynamic phenology, modelled using the Canadian Terrestrial Ecosystem Model (CTEM), and the other with prescribed phenology. These simulations are forced by atmospheric data from a transient climate change simulation of the 5th generation Canadian Regional Climate Model (CRCM5) for the Representative Concentration Pathway 8.5 (RCP8.5). Comparison of the CLASS coupled to CTEM simulation to available observational estimates of plant area index, spatial distribution of permafrost and active layer thickness suggests that the model captures reasonably well the overall distribution of vegetation and permafrost. It is shown that the most important impact of dynamic phenology on the land surface occurs through albedo and it is demonstrated for the first time that vegetation control on albedo during late spring and early summer has the highest potential to impact the degradation of permafrost. While both simulations show extensive near-surface permafrost degradation by the end of the twenty-first century, the strong projected response of vegetation to climate warming and increasing CO2 concentrations in the coupled simulation results in accelerated permafrost degradation in the northernmost continuous permafrost regions. |
英文关键词 | Dynamic vegetation model Albedo Permafrost Active layer thickness Climate change |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460619200022 |
WOS关键词 | LEAF-AREA INDEX ; CLIMATE-CHANGE ; PERMAFROST CARBON ; MODEL ; FEEDBACKS ; RADIATION ; FLUXES ; SCHEME ; GCMS ; SOIL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35881 |
专题 | 气候变化 |
作者单位 | 1.McGill Univ, Trottier Inst Sustainabil Engn & Design, Dept Civil Engn & Appl Mech, Montreal, PQ, Canada; 2.Univ Quebec Montreal, Dept Earth & Atmospher Sci, Montreal, PQ, Canada; 3.Univ Victoria, Environm & Climate Change Canada, Canadian Ctr Climate Modelling & Anal, Climate Res Div, Victoria, BC, Canada; 4.Environm & Climate Change Canada, Climate Res Div, Climate Proc Sect, Toronto, ON, Canada |
推荐引用方式 GB/T 7714 | Teufel, Bernardo,Sushama, Laxmi,Arora, Vivek K.,et al. Impact of dynamic vegetation phenology on the simulated pan-Arctic land surface state[J]. CLIMATE DYNAMICS,2019,52:373-388. |
APA | Teufel, Bernardo,Sushama, Laxmi,Arora, Vivek K.,&Verseghy, Diana.(2019).Impact of dynamic vegetation phenology on the simulated pan-Arctic land surface state.CLIMATE DYNAMICS,52,373-388. |
MLA | Teufel, Bernardo,et al."Impact of dynamic vegetation phenology on the simulated pan-Arctic land surface state".CLIMATE DYNAMICS 52(2019):373-388. |
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