气候变化领域集成服务门户(CCPortal): Spatio-temporal variations of the atmospheric greenhouse gases and their sources and sinks in the Arctic region

CCPortal

DOI	10.1016/j.polar.2020.100553
	Spatio-temporal variations of the atmospheric greenhouse gases and their sources and sinks in the Arctic region
	Morimoto S.; Goto D.; Murayama S.; Fujita R.; Tohjima Y.; Ishidoya S.; Machida T.; Inai Y.; Patra P.K.; Maksyutov S.; Ito A.; Aoki S.
发表日期	2021
ISSN	18739652
卷号	27
英文摘要	To understand the spatio-temporal variations of the atmospheric greenhouse gases in the Arctic region, we have conducted systematic observations and numerical model simulations. Long-term observations for CO2, CH4 and related constituents at Ny-Ålesund helped in separating the oceanic and terrestrial uptake rates of CO2 and revealed the importance of biogenic CH4 emissions to atmospheric CH4 variations. Shipboard observations of atmospheric CH4 in the Arctic Ocean indicated several peaks associated with long-range transports of the continental source signals. An underestimation of climatological O2 flux is demonstrated by the shipboard O2/N2 observations over the North Pacific and Arctic Sea. Clear seasonal cycles and long-term trends of the greenhouse gases were observed in the upper troposphere and lower stratosphere over the Eurasian continent at 8.5–12.5 km in altitude. Forward and inverse modeling studies and direct observations of CH4 emission from West Siberian wetlands were conducted to evaluate the CH4 fluxes estimated by previous bottom-up studies. To be consistent with the atmospheric CH4 observations, the prescribed CH4 emission needs downward and upward revisions at Hudson Bay Lowland and West Siberia, respectively. The terrestrial ecosystem model study showed increasing trends in the CH4 emission in inland North America, Alaska and northern part of West Siberian Lowland. © 2020 Elsevier B.V. and NIPR
英文关键词	Arctic; Carbon dioxide; Greenhouse gas; Methane
scopus关键词	air-sea interaction; arctic environment; atmospheric pollution; biogenic emission; greenhouse gas; long range transport; long-term change; simulation; source-sink dynamics; spatiotemporal analysis; stratosphere; troposphere; Alaska; Arctic; Arctic Ocean; Canada; Hudson Bay; Ny-Alesund; Pacific Ocean; Pacific Ocean (North); Russian Federation; Siberia; Siberian Lowland; Spitsbergen; Svalbard; Svalbard and Jan Mayen; United States
来源期刊	Polar Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177229
作者单位	Graduate School of Science, Tohoku University, 6-3 Aoba Aramaki, Aoba-ku, Sendai, 980-8578, Japan; National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan; Department of Physics, Imperial College London, South Kensington Campus, 709 Huxley Building, London, SW7 2AZ, United Kingdom; National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; Japan Meteorological Agency, N2W18, Chuo-ku, Sapporo, Hokkaido, 060-0002, Japan; Japan Agency for Marine-Earth Science and Technology, 3173-25 Syowa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan
推荐引用方式 GB/T 7714	Morimoto S.,Goto D.,Murayama S.,et al. Spatio-temporal variations of the atmospheric greenhouse gases and their sources and sinks in the Arctic region[J],2021,27.
APA	Morimoto S..,Goto D..,Murayama S..,Fujita R..,Tohjima Y..,...&Aoki S..(2021).Spatio-temporal variations of the atmospheric greenhouse gases and their sources and sinks in the Arctic region.Polar Science,27.
MLA	Morimoto S.,et al."Spatio-temporal variations of the atmospheric greenhouse gases and their sources and sinks in the Arctic region".Polar Science 27(2021).