Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.pocean.2014.04.017 |
Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas | |
Harada, Naomi1; Katsuki, Kota2; Nakagawa, Mitsuhiro3; Matsumoto, Akiko3; Seki, Osamu4; Addison, Jason A.5; Finney, Bruce P.6,7; Sato, Miyako1 | |
通讯作者 | Harada, Naomi |
来源期刊 | PROGRESS IN OCEANOGRAPHY
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ISSN | 0079-6611 |
出版年 | 2014 |
卷号 | 126页码:242-253 |
英文摘要 | Accurate prediction of future climate requires an understanding of the mechanisms of the Holocene climate; however, the driving forces, mechanisms, and processes of climate change in the Holocene associated with different time scales remain unclear. We investigated the drivers of Holocene sea surface temperature (SST) and sea ice extent in the North Pacific Ocean, and the Okhotsk and Bering Seas, as inferred from sediment core records, by using the alkenone unsaturation index as a biomarker of SST and abundances of sea ice-related diatoms (F. cylindrus and F. oceanica) as an indicator of sea ice extent to explore controlling mechanisms in the high-latitude Pacific. Temporal changes in alkenone content suggest that alkenone production was relatively high during the middle Holocene in the Okhotsk Sea and the western North Pacific, but highest in the late Holocene in the eastern Bering Sea and the eastern North Pacific. The Holocene variations of alkenone-SSTs at sites near Kamchatka in the Northwest Pacific, as well as in the western and eastern regions of the Bering Sea, and in the eastern North Pacific track the changes of Holocene summer insolation at 50 degrees N, but at other sites in the western North Pacific, in the southern Okhotsk Sea, and the eastern Bering Sea they do not. In addition to insolation, other atmosphere and ocean climate drivers, such as sea ice distribution and changes in the position and activity of the Aleutian Low, may have systematically influenced the timing and magnitude of warming and cooling during the Holocene within the subarctic North Pacific. Periods of high sea ice extent in both the Okhotsk and Bering Seas may correspond to some periods of frequent or strong winter-spring dust storms in the Mongolian Gobi Desert, particularly one centered at similar to 4-3 thousand years before present (kyr BP). Variation in storm activity in the Mongolian Gobi Desert region may reflect changes in the strength and positions of the Aleutian Low and Siberian High. We suggest that periods of eastward displacement or increased intensity of the Aleutian Low correspond with times of increased extent of sea ice in the western Okhotsk Sea and eastern Bering Sea. (C) 2014 Elsevier Ltd. All rights reserved. |
类型 | Review |
语种 | 英语 |
国家 | Japan ; South Korea ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000340851400021 |
WOS关键词 | RADIOCARBON AGE CALIBRATION ; MILLENNIAL-SCALE VARIATIONS ; WINTER CLIMATE VARIABILITY ; LAST GLACIAL MAXIMUM ; ENVIRONMENTAL-CHANGES ; NORTH PACIFIC ; RAFTED DEBRIS ; JAPAN ; KYR ; ALKENONES |
WOS类目 | Oceanography |
WOS研究方向 | Oceanography |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184491 |
作者单位 | 1.Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, Yokosuka, Kanagawa 2370061, Japan; 2.Korea Inst Geosci & Mineral Resources, Taejon 305350, South Korea; 3.Hokkaido Univ, Grad Sch Sci, Dept Nat Hist Sci, Kita Ku, Sapporo, Hokkaido 0600810, Japan; 4.Hokkaido Univ, Inst Low Temp Sci, Kita Ku, Sapporo, Hokkaido 0600819, Japan; 5.US Geol Survey, Menlo Pk, CA 94025 USA; 6.Idaho State Univ, Dept Geosci, Pocatello, ID 83209 USA; 7.Idaho State Univ, Dept Biol Sci, Pocatello, ID 83209 USA |
推荐引用方式 GB/T 7714 | Harada, Naomi,Katsuki, Kota,Nakagawa, Mitsuhiro,et al. Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas[J]. United States Geological Survey,2014,126:242-253. |
APA | Harada, Naomi.,Katsuki, Kota.,Nakagawa, Mitsuhiro.,Matsumoto, Akiko.,Seki, Osamu.,...&Sato, Miyako.(2014).Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas.PROGRESS IN OCEANOGRAPHY,126,242-253. |
MLA | Harada, Naomi,et al."Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas".PROGRESS IN OCEANOGRAPHY 126(2014):242-253. |
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