气候变化领域集成服务门户(CCPortal): A Method for Generating Coherent Spatially Explicit Maps of Seasonal Paleoclimates From Site-Based Reconstructions

CCPortal

DOI	10.1029/2019MS001630
	A Method for Generating Coherent Spatially Explicit Maps of Seasonal Paleoclimates From Site-Based Reconstructions
	Cleator S.F.; Harrison S.P.; Nichols N.K.; Prentice I.C.; Roulstone I.
发表日期	2020
ISSN	19422466
卷号	12 期号:1
英文摘要	We describe a method for reconstructing spatially explicit maps of seasonal paleoclimate variables from site-based reconstructions. Using a 3-D-Variational technique, the method finds the best statistically unbiased, and spatially continuous, estimate of the paleoclimate anomalies through combining the site-based reconstructions and a prior estimate of the paleoclimate state. By assuming a set of correlations in the error of the prior, the resulting climate is smoothed both from month to month and from grid cell to grid cell. The amount of smoothing can be controlled through the choice of two length-scale values. The method is applied to a set of reconstructions of the climate of the Last Glacial Maximum (ca. 21,000 years ago) for southern Europe derived from pollen data with a prior derived from results from the third phase of the Palaeoclimate Modelling Intercomparison Project. We demonstrate how to choose suitable values for the smoothing length scales for the data sets used in the reconstruction. © 2019. The Authors.
英文关键词	3-D variational; condition number; correlation; paleoclimate; pollen reconstruction; resolution matrix
语种	英语
scopus关键词	Correlation methods; Number theory; 3-D variational; Condition numbers; Intercomparisons; Last Glacial Maximum; Paleoclimates; Resolution matrix; Southern Europe; Spatially explicit; Repair; climate modeling; climate variation; correlation; Last Glacial Maximum; matrix; paleoclimate; pollen; reconstruction; seasonal variation; three-dimensional modeling; Europe
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156772
作者单位	Department of Mathematics, University of Surrey, Guildford, United Kingdom; School of Archaeology, Geography and Environmental Sciences (SAGES), University of Reading, Reading, United Kingdom; Department of Mathematics & Statistics, University of Reading, Reading, United Kingdom; AXA Chair of Biosphere and Climate Impacts, Department of Life Sciences, Imperial College London, London, United Kingdom
推荐引用方式 GB/T 7714	Cleator S.F.,Harrison S.P.,Nichols N.K.,et al. A Method for Generating Coherent Spatially Explicit Maps of Seasonal Paleoclimates From Site-Based Reconstructions[J],2020,12(1).
APA	Cleator S.F.,Harrison S.P.,Nichols N.K.,Prentice I.C.,&Roulstone I..(2020).A Method for Generating Coherent Spatially Explicit Maps of Seasonal Paleoclimates From Site-Based Reconstructions.Journal of Advances in Modeling Earth Systems,12(1).
MLA	Cleator S.F.,et al."A Method for Generating Coherent Spatially Explicit Maps of Seasonal Paleoclimates From Site-Based Reconstructions".Journal of Advances in Modeling Earth Systems 12.1(2020).