气候变化领域集成服务门户(CCPortal): Application and evaluation of the dendroclimatic process-based model MAIDEN during the last century in Canada and Europe

CCPortal

DOI	10.5194/cp-16-1043-2020
	Application and evaluation of the dendroclimatic process-based model MAIDEN during the last century in Canada and Europe
	Rezsöhazy J.; Goosse H.; Guiot J.; Gennaretti F.; Boucher E.; André F.; Jonard M.
发表日期	2020
ISSN	18149324
起始页码	1043
结束页码	1059
卷号	16 期号:3
英文摘要	Tree-ring archives are one of the main sources of information to reconstruct climate variations over the last millennium with annual resolution. The links between tree-ring proxies and climate have usually been estimated using statistical approaches, assuming linear and stationary relationships. Both assumptions may be inadequate, but this issue can be overcome by ecophysiological modelling based on mechanistic understanding. In this respect, the model MAIDEN (Modeling and Analysis In DENdroecology) simulating tree-ring growth from daily temperature and precipitation, considering carbon assimilation and allocation in forest stands, may constitute a valuable tool. However, the lack of local meteorological data and the limited characterization of tree species traits can complicate the calibration and validation of such a complex model, which may hamper palaeoclimate applications. The goal of this study is to test the applicability of the MAIDEN model in a palaeoclimate context using as a test case tree-ring observations covering the 20th century from 21 Eastern Canadian taiga sites and 3 European sites. More specifically, we investigate the model sensitivity to parameter calibration and to the quality of climatic inputs, and we evaluate the model performance using a validation procedure. We also examine the added value of using MAIDEN in palaeoclimate applications compared to a simpler tree-growth model, i.e. VS-Lite. A Bayesian calibration of the most sensitive model parameters provides good results at most of the selected sites with high correlations between simulated and observed tree growth. Although MAIDEN is found to be sensitive to the quality of the climatic inputs, simple bias correction and downscaling techniques of these data improve significantly the performance of the model. The split-sample validation of MAIDEN gives encouraging results but requires long tree ring and meteorological series to give robust results. We also highlight a risk of overfitting in the calibration of model parameters that increases with short series. Finally, MAIDEN has shown higher calibration and validation correlations in most cases compared to VS-Lite. Nevertheless, this latter model turns out to be more stable over calibration and validation periods. Our results provide a protocol for the application of MAIDEN to potentially any site with tree-ring width data in the extratropical region. © 2020 Royal Society of Chemistry. All rights reserved.
语种	英语
scopus关键词	boreal forest; climate variation; dendroclimatology; growth; model; paleoclimate; proxy climate record; tree ring; Canada; Europe
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146705
作者单位	Université Catholique de Louvain (UCLouvain), Earth and Life Institute (ELI), Georges Lemaître Centre for Earth and Climate Research (TECLIM), Place Louis Pasteur, Louvain-la-Neuve, 1348, Belgium; Aix Marseille University, CNRS, IRD, INRA, College de France, CEREGE, Aix-en-Provence, France; Institut de Recherche sur les Forêts, UQAT, Rouyn-Noranda, QC J9X 5E4, Canada; Université du Québec À Montréal, Département de Géographie, GEOTOP, Centre d'Études Nordiques, Montréal, H2X 3R9, Canada; Université Catholique de Louvain (UCLouvain), Earth and Life Institute (ELI), Croix du Sud 2, L7.05.09, Louvain-la-Neuve, 1348, Belgium
推荐引用方式 GB/T 7714	Rezsöhazy J.,Goosse H.,Guiot J.,et al. Application and evaluation of the dendroclimatic process-based model MAIDEN during the last century in Canada and Europe[J],2020,16(3).
APA	Rezsöhazy J..,Goosse H..,Guiot J..,Gennaretti F..,Boucher E..,...&Jonard M..(2020).Application and evaluation of the dendroclimatic process-based model MAIDEN during the last century in Canada and Europe.Climate of the Past,16(3).
MLA	Rezsöhazy J.,et al."Application and evaluation of the dendroclimatic process-based model MAIDEN during the last century in Canada and Europe".Climate of the Past 16.3(2020).