Periodicities between 6 and 16 years in surface air temperature in possible relation to solar inertial motion

Charvátová, Ivanka; Střeštı́k, Jaroslav

doi:10.1016/j.jastp.2003.10.003

Cited by 17 publications

(12 citation statements)

References 34 publications

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“…The contribution of solar inertial motion cycle (up to 16 years, in this case, 15 years) is within 6 to 9%. Charvatova and Strestik (2004) found that the periodicity between 6 and 16 years in surface air temperature is possibly related to solar inertial motion. Inspection of Figure 3 for Lower Egypt reveals three categories-V i / V i value is above 0.35 for the first, between 0.05 and 0.1 for the second; and less than 0.05 for the third.…”

Section: Spectral Analysismentioning

confidence: 99%

Variability of summer temperature over Egypt

Hasanean

Basset

2006

Intl Journal of Climatology

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Variations of summer temperature over Egypt have been studied using the data of 19 stations. The analysis of these data shows that the surface temperature is a stable climate element where its coefficient of variation (COV) is found to be low during summer. The time sequence of cumulative seasonal mean (CSM) is shown to exhibit bounded, oscillatory, nonperiodic behavior. The boundedness of the oscillation supports the notion of climate compensation; i.e. that spells of cold must eventually follow spells of warm. The trend analysis of the time series of our stations shows striking positive trend values during the last 20 years; this could be attributed not only to human activities but also to atmospheric circulation changes. Spectral analyses of the monthly values of the 19 stations were made. It was found that the first harmonic plays a dominant role in the regional climatological variations in Egypt; it explains more than 38% of the amplitude variations and may be related to the sunspot cycle, which affects summer temperature over Egypt. Other harmonics may be related to El Nino southern oscillation (ENSO) cycle, quasi-biennial oscillation (QBO) cycle, and solar inertial motion cycle. Each of them contribute approximately 9% to summer temperature in Egypt and so their influence on summer temperatures in the area is not so much.

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Section: Spectral Analysismentioning

confidence: 99%

Variability of summer temperature over Egypt

Hasanean

Basset

2006

Intl Journal of Climatology

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“…Recent studies have shown that the presence of NAO‐type signals at O(8) characterizes the spectral features around the decadal band of both Po River discharges (P1) and north Italian temperatures [ Brunetti , 2003], the latter being a regional manifestation of the 7.8‐year mode detected in SAT data over the whole European domain [ Charvátová and Střeštík , 2004]. Figure 11 illustrates the WCS generated by coupling the JFM SLH sequence with the JFM SAT and JFM D sequences; it also shows how the phase relationships among their O(8) modes have evolved throughout the last 130 years.…”

Section: Phenomena Intervening In the Slh Forcing By Eatsmentioning

confidence: 99%

Teleconnections force interannual‐to‐decadal tidal variability in the Lagoon of Venice (northern Adriatic)

et al. 2009

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[1] In the present investigation, for the first time, fundamental characteristics of autumn and winter average sequences of sea level heights (SLH) that were recorded in the Lagoon of Venice (northern Adriatic, in the Mediterranean Sea) during the period 1872-2004 are investigated. Interannual-to-decadal variability of Venetian SLH is found to reflect the variability of the most prominent Euro-Atlantic teleconnections (EATs). In particular, the North Atlantic Oscillation (NAO), the East Atlantic/Western Russian, and the Scandinavian patterns are found to contribute to generate the $5-year, $8-year and $22-year peaks that dominate the spectra of seasonal Venetian SLH. Among the possible oceanic and atmospheric phenomena downscaling interannual-to-decadal large-scale atmospheric signals into the observed variability in the Venetian SLH, we explore inverse barometer effect, wind-driven setup, and the thermohaline circulation of both the Adriatic and the Mediterranean seas. All these phenomena are assessed to display some of the typical features of the shared interannual-to-decadal variability of both Venetian SLH and EATs. Our analysis shows also that the decadal variability of winter Venetian SLH is closely linked with variations in solar activity: in particular, the winter SLH multidecadal pattern is found to be correlated, with very high statistical confidence, to the Hale Cycles pattern ($22 years), which describes the series of sunspot cycles with alternating opposite polarity. The marked signature of Hale Cycles on the leading mode of multidecadal sea level pressure winter variability (which is practically indistinguishable from the inverse wintertime NAO) is also detailed to further support the hypothesis of a Sun-Venetian SLH association.

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“…However, the extent to which the Sun contributes to climate change and some of the possible response mechanisms are controversial [ Versteegh , 2005; Almasi and Bond , 2009]. Nonetheless, there is empirical evidence for links between climate and solar phenomena such as the motion of the Sun around the barycenter of the planetary system (hereafter referred as to solar motion), which is mainly driven by gravitational forces between the Sun and jovian planets [e.g., Landscheidt , 1988, 2000; Charvátová and Střeštik , 2004; Tomasino et al , 2004; Zanchettin et al , 2008; Scafetta , 2010]. Most of this evidence is commonly observed in the Northern Hemisphere probably because instrumental, historical and geological data are more available in this hemisphere than in the Southern Hemisphere (SH), and not because of the absence of solar‐driven climate changes in the SH [ Versteegh , 2005].…”

Section: Introductionmentioning

confidence: 99%

Solar motion and discharge of Paraná River, South America: Evidence for a link

Antico

Kröhling

2011

Geophys. Res. Lett.

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A link between climate and the motion of the Sun around the barycenter of the solar system has been suggested, mostly on the basis of interannual cycles observed in climatological data from the Northern Hemisphere. This study provides empirical evidence for a connection between this solar motion and discharge of the Paraná River, which has the second largest drainage basin of South America. Solar motion is described here by the absolute value of the time derivative of solar angular momentum (∣τ∣). For the time period 1904–2008, the time evolution of both ∣τ∣ and river discharge is dominated by cycles with periods between 7 and 9 yr. Within this frequency band, a statistically significant anticorrelation is found between ∣τ∣ and river discharge with minima of ∣τ∣ coinciding with increased river discharge.

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Periodicities between 6 and 16 years in surface air temperature in possible relation to solar inertial motion

Cited by 17 publications

References 34 publications

Variability of summer temperature over Egypt

Variability of summer temperature over Egypt

Teleconnections force interannual‐to‐decadal tidal variability in the Lagoon of Venice (northern Adriatic)

Solar motion and discharge of Paraná River, South America: Evidence for a link

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