globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13256
论文题名:
The value of crossdating to retain high-frequency variability, climate signals, and extreme events in environmental proxies
作者: Black B.A.; Griffin D.; van der Sleen P.; Wanamaker A.D.; Jr; Speer J.H.; Frank D.C.; Stahle D.W.; Pederson N.; Copenheaver C.A.; Trouet V.; Griffin S.; Gillanders B.M.
刊名: Global change biology
ISSN: 13652486
出版年: 2016
卷: 22, 期:7
起始页码: 2582
结束页码: 2595
语种: 英语
英文关键词: climate reconstruction ; crossdating ; dendrochronology ; global change ; paleoclimate ; sclerochronology
Scopus关键词: fresh water ; climate variation ; dendrochronology ; global change ; Monte Carlo analysis ; numerical model ; paleoclimate ; reconstruction ; tree ring ; animal ; bivalve ; climate ; ecology ; fish ; growth, development and aging ; procedures ; tree ; Animals ; Bivalvia ; Climate ; Ecology ; Fishes ; Fresh Water ; Trees ; Bivalvia
英文摘要: High-resolution biogenic and geologic proxies in which one increment or layer is formed per year are crucial to describing natural ranges of environmental variability in Earth's physical and biological systems. However, dating controls are necessary to ensure temporal precision and accuracy; simple counts cannot ensure that all layers are placed correctly in time. Originally developed for tree-ring data, crossdating is the only such procedure that ensures all increments have been assigned the correct calendar year of formation. Here, we use growth-increment data from two tree species, two marine bivalve species, and a marine fish species to illustrate sensitivity of environmental signals to modest dating error rates. When falsely added or missed increments are induced at one and five percent rates, errors propagate back through time and eliminate high-frequency variability, climate signals, and evidence of extreme events while incorrectly dating and distorting major disturbances or other low-frequency processes. Our consecutive Monte Carlo experiments show that inaccuracies begin to accumulate in as little as two decades and can remove all but decadal-scale processes after as little as two centuries. Real-world scenarios may have even greater consequence in the absence of crossdating. Given this sensitivity to signal loss, the fundamental tenets of crossdating must be applied to fully resolve environmental signals, a point we underscore as the frontiers of growth-increment analysis continue to expand into tropical, freshwater, and marine environments. © 2016 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61367
Appears in Collections:影响、适应和脆弱性

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作者单位: Marine Science Institute, University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX, 78373, USA; Department of Geography, Environment, and Society, University of Minnesota, Geography Room 414, Minneapolis, MN, 55455, USA; Department of Geological and Atmospheric Sciences, Iowa State University, 12 Science I, Ames, IA, 50011, USA; Department of Earth and Environmental Systems, Indiana State University, Science 159E, Terre Haute, IN, 47809, USA; Swiss Federal Research Institute WSL, Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Zähringerstrasse 25, CH-3012, Bern, Switzerland; Department of Geosciences, University of Arkansas, 216 Ozark Hall, Fayetteville, AR, 72701, USA; Harvard Forest, 324 N Main St., Petersham, MA, 10366, USA; Department of Forest Resources and Environmental Conservation, Virginia Tech, 228C Cheatham Hall, Blacksburg, VA, 24061, USA; Laboratory of Tree-Ring Research, University of Arizona, 1215 E. Lowell St., Tucson, AZ, 85721, USA; School of Biological Sciences & Environment Institute, University of Adelaide, Darling Building, Adelaide, SA, 5005, Australia

Recommended Citation:
Black B.A.,Griffin D.,van der Sleen P.,et al. The value of crossdating to retain high-frequency variability, climate signals, and extreme events in environmental proxies[J]. Global change biology,2016-01-01,22(7)
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