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Article
Comparative Analysis of Spectra of the 2000-year Reconstructions of Average Surface Air Temperature in the Northern Hemisphere
The spectral composition of temporal variations in the Northern Hemisphere mean surface air temperature is estimated and compared in 2000-year paleoclimatic reconstructions. Continuous wavelet transforms of th...
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Article
Changes in General Atmospheric Circulation in the Northern Hemisphere in 1998–2018
The analysis of systematic changes in the Northern Hemisphere 500 hPa geopotential height field is performed. The dataset of the 5-day mean values of 500 hPa geopotential height during 1998–2018...
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Article
A comparison between medieval and current climate warming using the Przewalskii’s juniper tree-ring data
Comparison with the climate of the past centuries has demonstrated until recently the unprecedented warming at the scale of the last millennium at least. This is embodied in the latest report of the Intergover...
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Article
Spatiotemporal scaling of surface air temperature fields in China
The characteristics of spatiotemporal variability of surface air temperature anomaly fields in China are computed from the data of instrumental observations carried out from 1907 to 2000. The fields are repres...
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Article
Properties and changes in empirical orthogonal components of temperature fields in Northern Eurasia in the 20th century
Using data from 55 meteorological stations in the Northern Hemisphere for the 20th century as a whole and separately for 1901–1950 and 1951–2000, the norms and empirical orthogonal components (EOCs) of the fie...
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Article
Quantitative analysis of the tree-ring width record features essential for paleoclimatic reconstructions
Tree-ring width records provide a primary data source for millennial paleoclimatic reconstructions. However, a problem exists connected with taking into consideration the complex age-dependence within these re...
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Article
On the reliability of millennial reconstructions of variations in surface air temperature in the Northern Hemisphere
The reliability of the recently published reconstructions of the surface air temperature variability in the Northern Hemisphere over the past 2000 yr is discussed. For this purpose, the power spectra of the tw...
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Article
Objective time-scale-dependent homogenization of early instrumental temperature series
An objective method for homogenization of early (pre ∼ 1850) instrumental near surface air temperature records is developed. The method is grounded on the same variational principle as used in the objective a...
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Article
Wavelet Analysis of Nonstationary and Chaotic Time Series with an Application to the Climate Change Problem
—Our aim here is to show merits of the so-called wavelet transform of time series as an analyzing tool of the simultaneously nonstationary and chaotic processes that usually appear in the Earth sciences. The m...
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Chapter
Wavelet Analysis of Nonstationary and Chaotic Time Series with an Application to the Climate Change Problem
Our aim here is to show merits of the so-called wavelet transform of time series as an analyzing tool of the simultaneously nonstationary and chaotic processes that usually appear in the Earth sciences. The me...
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Article
Multiscale Oscillations of the Global Climate System as Revealed by Wavelet Transform of Observational Data Time Series
The surface air temperature time series of both hemispheres and the North Atlantic European area as well as the Southern Oscillation (SO) index time series were analysed using a wavelet transform technique. T...
