Century-Scale Intensity Modulation of Large-Scale Variability in Long Historical Temperature Records

Large-scale variability in long historical temperature records around the North Atlantic Ocean is analyzed by means of power spectral density (PSD) analysis and detrended fluctuation analysis (DFA). It is found that the intensity of large-scale variability is changeable with time, and long memory an...

Full description

Bibliographic Details
Published in:Journal of Climate
Main Authors: Yuan, Naiming, Fu, Zuntao
Other Authors: Fu, ZT (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmospher Studies, Beijing 100871, Peoples R China., Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmospher Studies, Beijing 100871, Peoples R China., Chinese Acad Meteorol Sci, Beijing, Peoples R China.
Format: Journal/Newspaper
Language:English
Published: journal of climate 2014
Subjects:
Spectral analysis
models
distribution
Time series
Anomalies
Climate variability
Multidecadal variability
DETRENDED FLUCTUATION ANALYSIS
ATLANTIC CLIMATE VARIABILITY
SURFACE AIR-TEMPERATURE
SOLAR IRRADIANCE
PROXY DATA
MEMORY
PREDICTABILITY
OSCILLATION
PERSISTENCE
North Atlantic
Online Access:https://hdl.handle.net/20.500.11897/296349
https://doi.org/10.1175/JCLI-D-13-00349.1
Description
Summary:Large-scale variability in long historical temperature records around the North Atlantic Ocean is analyzed by means of power spectral density (PSD) analysis and detrended fluctuation analysis (DFA). It is found that the intensity of large-scale variability is changeable with time, and long memory analysis can be used to detect this possible intensity variation quantitatively. By estimating long-term memory (LTM) in subrecords of different time intervals, a century-scale variation of LTM is revealed, which further indicates a century-scale intensity modulation of the large-scale temperature variability. At the beginning of the nineteenth and twentieth centuries, the large-scale variability is more apparent, whereas in the second half of the nineteenth and twentieth centuries the large-scale variability becomes less significant. Considering the importance of large-scale variability, the findings herein suggest a new perspective on the understanding of climatic change. Meteorology & Atmospheric Sciences SCI(E) EI 3 ARTICLE fuzt@pku.edu.cn 4 1742-1750 27

Similar Items