MULTIFRACTAL ANALYSIS OF THE GREENLAND ICE-CORE PROJECT CLIMATE DATA

被引：71

作者：

SCHMITT, F

LOVEJOY, S

SCHERTZER, D

机构：

[1] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ H3A 2T8, CANADA

[2] UNIV PARIS 06, METEOROL DYNAM LAB, CNRS, PARIS, FRANCE

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 13期

关键词：

D O I：

10.1029/95GL01522

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Recent climatic records from the Greenland ice-core project (GRIP) ice core show that the cliInate proxy temperatures delta(18)O (O-18/(16) O ratios) display sharp gradients and large fluctuations over all observed scales. We show that a these variations are scale invariant over the range approximate to 400 yr to approximate to 40 kyr. The fluctuations corresponding to these scales are studied using multifractal analysis techniques. We estimate universal multifractal indices which characterize all the fluctuations for all the scales in this range and which are close to those obtained for turbulent temperatures at much shorter time scales. We speculate briefly on the origin of these common features intervening all over the observed range from seconds to kyr.

引用

页码：1689 / 1692

页数：4

共 37 条

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