Arid
DOI10.1007/s00382-005-0009-4
High-resolution simulations of the last glacial maximum climate over Europe: a solution to discrepancies with continental palaeoclimatic reconstructions?
Jost, A; Lunt, D; Kageyama, M; Abe-Ouchi, A; Peyron, O; Valdes, PJ; Ramstein, G
通讯作者Jost, A
来源期刊CLIMATE DYNAMICS
ISSN0930-7575
出版年2005
卷号24期号:6页码:577-590
英文摘要

The analyses of low-resolution models simulations of the last glacial maximum (LGM, 21 kyr BP) climate have revealed a large discrepancy between all the models and pollen-based palaeoclimatic reconstructions. In general, the models are too warm relative to the observations, especially in winter, where the difference is of the order of 10 degrees C over western Europe. One of the causes of this discrepancy may be related to the low spatial resolution of these models. To assess the impact of using high-resolution models on simulated climate sensitivity, we use three approaches to obtain high-resolution climate simulations over Europe: first art atmospheric general circulation model (AGCM) with a stretched grid over Europe, second a homogeneous T106 AGCM (high resolution everywhere on the globe) and last a limited area model (LAM) nested in a low-resolution AGCM. With all three methods, we have performed simulations of the European climate for present and LGM conditions, according to the experimental design recommended by the Palaeoclimate Modeling Intercomparison Project (PMIP). Model results have been compared with updated pollen-based palaeoclimatic indicators for temperature and precipitation that were initially developed in PMIP. For each model, a low-resolution global run was also performed. As expected, the low-resolution simulations underestimate the large cooling indicated by pollen data, especially in winter, despite revised slightly warmer reconstructions of the temperatures of the coldest month, and show results in the range of those obtained in PMIP with similar models. The two high-resolution AGCMs do not improve the temperature field and cannot account for the discrepancy between model results and data, especially in winter. However, they are able to reproduce trends in precipitation more closely than their low-resolution counterparts do, but the simulated climates are still not as arid as depicted by the data. Conversely, the LAM temperature results compare well with climate reconstructions in winter but the simulated hydrological cycle is not consistent with the data. Finally, these results are discussed in regard of other possible causes for discrepancies between models and palaeoclimatic reconstructions for the LGM European climate.


类型Article
语种英语
国家France ; England ; Japan
收录类别SCI-E
WOS记录号WOS:000230091600003
WOS关键词OXYGEN-ISOTOPE STAGE-3 ; POLLEN DISTRIBUTION ; ATMOSPHERIC GCM ; MODEL ; SURFACE ; SENSITIVITY ; VEGETATION ; SEDIMENTS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/148721
作者单位(1)Univ Paris 06, UMR 7619 Sisyphe, Paris, France;(2)Univ Bristol, BRIDGE, Sch Geog Sci, Bristol BS8 1SS, Avon, England;(3)CEA CNRS, Lab Sci Climat & Environm, IPSL, UMR, Gif Sur Yvette, France;(4)Univ Tokyo, CCSR, Tokyo, Japan;(5)Univ Franche Comte, Lab Chronoecol, CNRS, UMR 6565, F-25030 Besancon, France
推荐引用方式
GB/T 7714
Jost, A,Lunt, D,Kageyama, M,et al. High-resolution simulations of the last glacial maximum climate over Europe: a solution to discrepancies with continental palaeoclimatic reconstructions?[J],2005,24(6):577-590.
APA Jost, A.,Lunt, D.,Kageyama, M.,Abe-Ouchi, A.,Peyron, O.,...&Ramstein, G.(2005).High-resolution simulations of the last glacial maximum climate over Europe: a solution to discrepancies with continental palaeoclimatic reconstructions?.CLIMATE DYNAMICS,24(6),577-590.
MLA Jost, A,et al."High-resolution simulations of the last glacial maximum climate over Europe: a solution to discrepancies with continental palaeoclimatic reconstructions?".CLIMATE DYNAMICS 24.6(2005):577-590.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Jost, A]的文章
[Lunt, D]的文章
[Kageyama, M]的文章
百度学术
百度学术中相似的文章
[Jost, A]的文章
[Lunt, D]的文章
[Kageyama, M]的文章
必应学术
必应学术中相似的文章
[Jost, A]的文章
[Lunt, D]的文章
[Kageyama, M]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。