气候变化领域集成服务门户(CCPortal): Importance of human-induced nitrogen flux increases for simulated arctic warming

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DOI	10.1175/JCLI-D-20-0180.1
	Importance of human-induced nitrogen flux increases for simulated arctic warming
	Lim H.-G.; Park J.-Y.; Dunne J.P.; Stock C.A.; Kang S.-H.; Kug J.-S.
发表日期	2021
ISSN	08948755
起始页码	3799
结束页码	3819
卷号	34 期号:10
英文摘要	Human activities such as fossil fuel combustion, land-use change, nitrogen (N) fertilizer use, emission of livestock, and waste excretion accelerate the transformation of reactive N and its impact on the marine environment. This study elucidates that anthropogenic N fluxes (ANFs) from atmospheric and river deposition exacerbate Arctic warming and sea ice loss via physical–biological feedback. The impact of physical–biological feedback is quantified through a suite of experiments using a coupled climate–ocean–biogeochemical model (GFDL-CM2.1-TOPAZ) by prescribing the preindustrial and contemporary amounts of riverine and atmospheric N fluxes into the Arctic Ocean. The experiment forced by ANFs represents the increase in ocean N inventory and chlorophyll concentrations in present and projected future Arctic Ocean relative to the experiment forced by preindustrial N flux inputs. The enhanced chlorophyll concentrations by ANFs reinforce shortwave attenuation in the upper ocean, generating additional warming in the Arctic Ocean. The strongest responses are simulated in the Eurasian shelf seas (Kara, Barents, and Laptev Seas; 658–908N, 208–1608E) due to increased N fluxes, where the annual mean surface temperature increase by 12% and the annual mean sea ice concentration decrease by 17% relative to the future projection, forced by preindustrial N inputs. Ó 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy
英文关键词	Arctic; Climate change; Ocean models
语种	英语
scopus关键词	Agriculture; Chlorophyll; Climate models; Fossil fuels; Land use; Nitrogen fertilizers; Sea ice; Silicate minerals; Waste incineration; American meteorological societies; Biogeochemical modeling; Chlorophyll concentration; Copyright informations; Fossil fuel combustion; Future projections; Sea ice concentration; Surface temperatures; Oceanography
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178564
作者单位	Princeton University, Atmospheric and Oceanic Sciences Program, Princeton, NJ, United States; Division of Environmental Science and Engineering, POSTECH, Pohang, South Korea; Department of Earth and Environmental Sciences, Jeonbuk National University, Jeollabuk-do, South Korea; National Oceanic and Atmospheric Administration/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Korea Polar Research Institute, Incheon, South Korea
推荐引用方式 GB/T 7714	Lim H.-G.,Park J.-Y.,Dunne J.P.,et al. Importance of human-induced nitrogen flux increases for simulated arctic warming[J],2021,34(10).
APA	Lim H.-G.,Park J.-Y.,Dunne J.P.,Stock C.A.,Kang S.-H.,&Kug J.-S..(2021).Importance of human-induced nitrogen flux increases for simulated arctic warming.Journal of Climate,34(10).
MLA	Lim H.-G.,et al."Importance of human-induced nitrogen flux increases for simulated arctic warming".Journal of Climate 34.10(2021).