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DOI | 10.1029/2019PA003574 |
Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum | |
Bostock, H. C.1; Prebble, J. G.2; Cortese, G.2; Hayward, B.3; Calvo, E.4; Quiros-Collazos, L.4; Kienast, M.5; Kim, K.6 | |
发表日期 | 2019 |
ISSN | 2572-4517 |
EISSN | 2572-4525 |
卷号 | 34期号:4页码:580-599 |
英文摘要 | The oceans are warming, but it is unclear how marine productivity will be affected under future climate change. In this study we examined a wide range of paleoproductivity proxies along a latitudinal transect (36-58 degrees S) in the SW Pacific during the early Holocene climatic optimum, to explore regional patterns of productivity in a slightly warmer-than-present world. During the early Holocene there is a small increase in productivity in the subtropical waters, no change at the subtropical frontal zone, and conflicting evidence in records immediately south of the subtropical front, where an increase is inferred from one core site, but not at the other. Evidence for an increase in productivity in Antarctic Surface Waters, south of the polar front, is also equivocal. We infer a small increase in productivity in subtropical waters, and the ocean just south of the subtropical front was associated with changes in the ocean circulation of the SW Pacific, driven by changes in the Southern Hemisphere Westerly Winds split jet structure in this region. The relatively modest warming during the early Holocene climatic optimum in the SW Pacific indicates that this time period may provide an analog for future productivity for the midcentury (2055) under Intergovernmental Panel on Climate Change Representative Concentration Pathway 8.5 or for the end of the century (2100) under Representative Concentration Pathway 4.5. However, higher-resolution, downscaled models, with realistic Southern Hemisphere Westerly Winds, will be necessary to forecast future productivity for this oceanographically complex region. |
WOS研究方向 | Geology ; Oceanography ; Paleontology |
来源期刊 | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/95463 |
作者单位 | 1.Natl Inst Water & Atmospher Res, Wellington, New Zealand; 2.GNS Sci, Lower Hutt, New Zealand; 3.Geomarine Res, Auckland, New Zealand; 4.Inst Marine Sci, Barcelona, Spain; 5.Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada; 6.Korea Polar Res Inst, Incheon, South Korea |
推荐引用方式 GB/T 7714 | Bostock, H. C.,Prebble, J. G.,Cortese, G.,et al. Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum[J],2019,34(4):580-599. |
APA | Bostock, H. C..,Prebble, J. G..,Cortese, G..,Hayward, B..,Calvo, E..,...&Kim, K..(2019).Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,34(4),580-599. |
MLA | Bostock, H. C.,et al."Paleoproductivity in the SW Pacific Ocean During the Early Holocene Climatic Optimum".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 34.4(2019):580-599. |
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