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  • Solar activity and climate in Climatic variations and variability: facts and theories.
  • Solar activity cannot be disregarded as a possible external cause of the Little Ice Age and the 20th century climatic warming. Climatic responses to the 11-and 22-year solar cycles, although relatively weak are in evidence. Further (case-) studies
  • of short-term influences of solar activity on the atmosphere may reveal the physical nature of these statistical sun climate relationships. Suggested mechanisms have not been tested quantitatively in numerical models of the atmosphere, with the exception
  • of the possible variation of the solar constant.
  • Application of artificial neural networks in climatology: a case study of sunspot prediction and solar climate trends
  • Climatic variation ; Climatology ; Forecast ; Global change ; Methodology ; Radiation ; Solar activity
  • Global temperature trends on time scales of years to centuries have recently been shown to be related to volcanic aerosols, carbon dioxide levels, and solar activity. The most visible and well-studied indicators of solar variability are dark areas
  • or sunspots on the surface of the Sun, with sunspot numbers directly related to the level of solar activity. In this paper the AA. show some preliminary findings in using feedforward neural networks for the prediction of peak sunspot cycle amplitude
  • Climatic variability along a north-south transect of Finland over the last 500 years : signature of solar influence or internal climate oscillations ?
  • Climate ; Climatic variability ; Dendrochronology ; Dendroclimatology ; Dendrology ; Finland ; Palaeoclimatology ; Solar activity ; Solar cycle ; Statistical analysis
  • (17-23 year) and decadal (9-13 year) periodicities governed the climate variability in Finland over the last five centuries. Despite the fact that many of the climatic periodicities bore great resemblance to periodicities of solar cycles, little
  • evidence of actual solar influence on Finnish climate was found.
  • A geochronological approach to understanding the role of solar activity on Holocene glacier length variability in the Swiss Alps
  • Alps had a shorter length at several defined periods during the Holocene than in the 1990s. Measured long-term series of glacier length variations show significant correlation with the total solar irradiance.
  • Change of the solar radiation and its causes in the Haihe River Basin and surrounding areas
  • significant from low population density areas to high population density areas. The spatial distribution of increase in aerosol index is consistent with that of decrease in solar radiation. The increase in aerosols resulting from human activities
  • The temporal and spatial variations of solar radiation and the cause of the change in solar radiation have been analyzed based on meteorological data from 46 national meteorological stations and aerosol index data from TOMS over the Haihe River
  • Basin and surrounding areas. The results have shown that solar radiation and direct radiation significantly decreased, while scattered radiation increased during the period 1957–2008. Spatially, the decreasing trend of solar radiation was more and more
  • was an important reason for the decrease in solar radiation.
  • Economic impacts of solar thermal electricity technology development on Andalusian productive activities : a CGE approach
  • Andalusia ; Economic equilibrium ; Economic impact ; Electricity ; Regional development ; Renewable energy ; Scenario ; Solar energy ; Spain
  • Desarrollo regional ; Electricidad ; Energía renovable ; Energía solar ; Equilibrio económico ; Escenario ; España ; Impacto económico
  • Climate change and solar variability. What's new under the sun ?
  • Climatic variation ; Historical climate ; Palaeoclimate ; Solar activity
  • Atmospheric circulation ; Climatic variability ; Climatology ; Evaporation ; Interannual variability ; Poland ; Radiation ; Solar activity ; Statistics ; Twentieth Century ; Wind speed ; Wrocław
  • of increased fluctuational dynamics. The analysis points to the occurrence of 8, 10-11, 16 and 21-23-year evaporation rhythms. The overall findings were investigated in the context of solar activity (Wolf's number) and of multi-year circulation changes
  • . with saturation deficit, solar global radiation and wind velocity. The variability of variability was taken into consideration and multi-year periods of relative stabilization and extinction of amplitude fluctuations separated and contrasted with intervals
  • Climatic change ; Climatic warming ; Cyclogenesis ; Global change ; Human geography ; Middle Ages ; Ocean atmosphere interaction ; Solar activity ; Theory ; Uncertainty
  • Actividad solar ; Cambio climático ; Cambio global ; Ciclogénesis ; Edad Media ; Geografía humana ; Interaccíon océano-atmósfera ; Recalentamiento climático ; Situación de incertitud ; Teoría
  • : the debate of the medieval warm period and the “hockey stick curve”, the solar activity and the role of the ocean cycles, which might be a significant topic in the future debates. - (AM)
  • Biosphere ; Climatic change ; Cosmos ; Dendroclimatology ; Dendrology ; Forecast ; Forest ; Planetary wave ; Solar activity ; Solar cycle ; Solar system
  • Actividad solar ; Biosfera ; Bosque ; Cambio climático ; Ciclo solar ; Cosmos ; Dendroclimatología ; Dendrología ; Onda planetaria ; Previsión ; Sistema solar
  • Effect of solar radiation on net ecosystem CO2 exchange of alpine meadow on the Tibetan Plateau
  • in Damxung from July to August in 2003, 2004, 2005 and 2006 using the eddy covariance technique. The diurnal relationships between NEE and photosynthetically active radiation (PAR) varied with differences in solar radiation, which was a rectangular hyperbola
  • To analyze the characteristics of change in the net ecosystem CO2 exchange in the daytime (NEE) and to calculate the parameters related to photosynthesis and respiration in different solar radiation environments, the NEE measurements were taken
  • form on clear days, two different concave curves on partly cloudy days and an irregular triangle form on cloudy days. The mean CO2 absorption rate showed a decreasing trend with increasing solar radiation. Therefore, on the Tibetan Plateau, the alpine
  • meadow ecosystem will have a higher carbon absorption potential while solar radiation decreases in the future.
  • Climate fluctuation ; Climate oscillation ; Climatic variation ; Climatic warming ; Climatology ; Model ; Solar activity ; Solar radiation ; Temperature ; Thermal anomaly
  • Meteorology ; Radiation ; Solar activity ; Solar cycle
  • Experimental station ; Fluvial deposit ; Fluvial erosion ; Solar activity ; Solar cycle ; Watershed
  • Climatic, solar, oceanic, and geomagnetic influences on Late-Glacial and Holocene atmospheric 14C/12C change
  • , and size of, the various reservoirs. First-order corrections to the radiocarbon time scale (12,000-30,000 14C yr B.P.) are calculated. The spectral interpretation of the 14C/12C atmospheric record favors higher than average solar activity levels
  • Solar influences on Holocene climatic changes illustrated by correlations between past lake-level fluctuations and the atmospheric 14C record
  • Alpes du Nord ; Atmosphere ; Austria ; Carbon ; Climatic variation ; Dendrochronology ; France ; Glacier advance ; Holocene ; Jura ; Lake level ; Palaeoclimatology ; Quaternary ; Solar activity ; Switzerland
  • Atmosphere ; Atmospheric circulation ; Cosmos ; Moon ; Solar activity ; Solar cycle ; Stratosphere ; Tropical zone ; Wind
  • actives du Soleil. L'A. a utilisé les données mensuelles moyennes sur le transport de la masse d'air dans la stratosphère équatoriale de 1954 à 1991 et les anomalies progressives des nombres de Wolf quotidiens de 1954 à 1989.
  • Tropopause height and solar activity
  • Climatic cycle ; Climatic variability ; Dendroclimatology ; Dendrology ; Finland ; Holocene ; Ocean atmosphere interaction ; Palaeoclimatology ; Solar activity ; Summer ; Temperature
  • to Glessberg solar activity variations. In addition, a 2000-yr quasi-period is found in this temperature proxy data, similar to the millennial-scale variability present in records from the North Atlantic region.