Comment on "Characteristic Time Scales of Decadal to Centennial Changes in Global Surface Temperatures Over the Past 150 Years" by J. L. Le Mouel, F. Lopes, and V. Courtillot

被引：1

作者：

Cuypers, Y. ^{[1
]}

Codron, F. ^{[1
]}

Crepon, M. ^{[1
]}

机构：

[1] Unite Mixte Rech 7159 CNRS IRD Sorbonne Univ MNHN, Inst Pierre Simon Laplace, Lab Oceanog & Climat Expt & Approches Numer, Paris, France

来源：

EARTH AND SPACE SCIENCE | 2021年 / 8卷 / 04期

关键词：

D O I：

10.1029/2020EA001298

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on Singular Spectral Analysis (SSA) analysis of global earth surface temperature and solar activity (sunspots), Le Mouel et al. (2020, ) suggest that the variability in Earth surface temperature observed since 1850 is natural and controlled by the Sun. We cannot agree with their conclusions for several reasons: the lack of compelling results from the Fourier spectra and SSA estimates which are provided without confidence intervals, the small radiative forcing associated with the sunspot variability, and finally the simple evidence that the slowly varying components of the temperature and sunspots time show opposite trends in the last 30 years.

引用

页数：4