New insights into the thermal regime and hydrodynamics of the early Late Cretaceous Arctic
文献类型：期刊论文
| 作者 | Spicer, Robert3; Valdes, Paul2; Hughes, Alice3; Yang, Jian4; Spicer, Teresa4; Herman, Alexei5; Farnsworth, Alexander2 |
| 刊名 | GEOLOGICAL MAGAZINE
 |
| 出版日期 | 2020 |
| 卷号 | 157期号:10页码:1729-1746 |
| 关键词 | polar warmth palaeoclimate CLAMP ecosystem Alaska Russia plant fossils |
| ISSN号 | 0016-7568 |
| DOI | 10.1017/S0016756819000463 |
| 文献子类 | Article |
| 英文摘要 | The Arctic is warming faster than anywhere else of comparable size on Earth, impacting global climate feedbacks and the Arctic biota. However, a warm Arctic is not novel. The Late Cretaceous fossil record of the region enables a detailed reconstruction of polar environmental conditions, and a thriving extinct ecosystem, during a previous 'hothouse' global climate. Using leaf form (physiognomy) and tree ring characteristics we reconstruct Cenomanian to Coniacian polar thermal and hydrological regimes over an average annual cycle at eight locations in NE Russia and northern Alaska. A new high spatial resolution (similar to 1 km) WorldClim2 calibration of the Climate Leaf Analysis Multivariate Program (CLAMP) yields results similar to, but often slightly warmer than, previous analyses, but also provides more detailed insights into the hydrological regime through the return of annual and seasonal vapour pressure deficit (VPD), potential evapotranspiration (PET) estimates and soil moisture, as well as new thermal overviews through measures of thermicity and growing degree days. The new results confirm the overall warmth of the region, particularly close to the Arctic Ocean, but reveal strong local differences that may be related to palaeoelevation in the Okhotsk-Chukotka Volcanogenic Belt in NE Russia. While rainfall estimates have large uncertainties due to year-round wet soils in most locations, new measures of VPD and PET show persistent high humidity, but with notably drier summers at all the Arctic sites. |
| 学科主题 | Geosciences, Multidisciplinary |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1469-5081 |
| WOS关键词 | CENTRAL NORTH SLOPE ; PALEOBOTANICAL EVIDENCE ; NORTHEASTERN ASIA ; GREBENKA FLORA ; ARMAN FLORA ; CLIMATE ; TERRESTRIAL ; ALASKA ; RIVER ; ANGIOSPERMS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000574597100011 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | Geological Institute, Russian Academy of Sciences [0135-2019-0044] ; Russian Foundation for Basic Research projectRussian Foundation for Basic Research (RFBR) [19-05-00121] ; National Natural Science Foundation of China (NSFC)-UK Natural Environment Research Council (NERC) joint research programme [41661134049, NE/P013805/1] ; Xishuangbanna Tropical Botanical Garden (XTBG) (Chinese Academy of Sciences) International Fellowship |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21569]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Russian Acad Sci, Geol Inst, Moscow 119017, Russia 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 3.Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 4.Univ Bristol, Sch Geog Sci, Bristol BS8 1SS, Avon, England 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Spicer, Robert,Valdes, Paul,Hughes, Alice,et al. New insights into the thermal regime and hydrodynamics of the early Late Cretaceous Arctic[J]. GEOLOGICAL MAGAZINE,2020,157(10):1729-1746. |
| APA | Spicer, Robert.,Valdes, Paul.,Hughes, Alice.,Yang, Jian.,Spicer, Teresa.,...&Farnsworth, Alexander.(2020).New insights into the thermal regime and hydrodynamics of the early Late Cretaceous Arctic.GEOLOGICAL MAGAZINE,157(10),1729-1746. |
| MLA | Spicer, Robert,et al."New insights into the thermal regime and hydrodynamics of the early Late Cretaceous Arctic".GEOLOGICAL MAGAZINE 157.10(2020):1729-1746. |
入库方式： OAI收割
来源：植物研究所
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