Climate Change Attribution Using Empirical Decomposition of
... As explained in Scafetta and West [2007] and in Scafetta [2009] most of this warming is likely due to the increased solar activity with the volcano effect playing only a minor effect if recent paleoclimatic reconstructions of the global climate, which show a large pre-industrial variability [e.g. Mo ...
... As explained in Scafetta and West [2007] and in Scafetta [2009] most of this warming is likely due to the increased solar activity with the volcano effect playing only a minor effect if recent paleoclimatic reconstructions of the global climate, which show a large pre-industrial variability [e.g. Mo ...
Comparisons of Observed Paleoclimate and Model
... •Proxy reconstructions and model simulations both suggest that late 20th century warmth is anomalous in the context of the past 1000-2000 years •Primary source of differences between various reconstructions appear to be related to issues of seasonality and spatial representativeness • Important diff ...
... •Proxy reconstructions and model simulations both suggest that late 20th century warmth is anomalous in the context of the past 1000-2000 years •Primary source of differences between various reconstructions appear to be related to issues of seasonality and spatial representativeness • Important diff ...
Sun
... luminosity can account for 52% of the change in temperatures from 1910 to 1960 but just 31% of the change from 1970 to 1999. N. Scafetta and B. J. West of Duke University, in “Phenomenological Solar Signature in 400 years of Reconstructed Northern Hemisphere Temperature Record” (GRL 2006 and b0) sho ...
... luminosity can account for 52% of the change in temperatures from 1910 to 1960 but just 31% of the change from 1970 to 1999. N. Scafetta and B. J. West of Duke University, in “Phenomenological Solar Signature in 400 years of Reconstructed Northern Hemisphere Temperature Record” (GRL 2006 and b0) sho ...
Theoretical mechanism for natural radiative forcing of El Nino
... El Niño-Southern Oscillation and tropical Pacific climate during the last millennium, Nature, 424, 271-276, 2003. ...
... El Niño-Southern Oscillation and tropical Pacific climate during the last millennium, Nature, 424, 271-276, 2003. ...
CASE STUDY India’s Solar Mission
... KPMG India also projects that when grid parity is reached, solar energy generation could offset 30.8 million tons of CO2 emissions – roughly 1 per cent of the overall Indian emissions or 2.2 per cent of emissions from the electricity sector. In just two years after grid parity, solar installations a ...
... KPMG India also projects that when grid parity is reached, solar energy generation could offset 30.8 million tons of CO2 emissions – roughly 1 per cent of the overall Indian emissions or 2.2 per cent of emissions from the electricity sector. In just two years after grid parity, solar installations a ...
Lecture #7_radiation - UMD | Atmospheric and Oceanic Science
... Bargraph: estimated change of radiative forcings between 1850 and 1997. Confidence levels are estimated for the pre-satellite era, satellite era (1979-1999), upcoming decade of satellite data, and model predictions for the first half of next century. Models play a role in past and future estimates. ...
... Bargraph: estimated change of radiative forcings between 1850 and 1997. Confidence levels are estimated for the pre-satellite era, satellite era (1979-1999), upcoming decade of satellite data, and model predictions for the first half of next century. Models play a role in past and future estimates. ...
Geel et al.
... subtropical jet streams were displaced poleward. The location of these westerly jets determines the latitudinal extent of the Hadley cells and, therefore, the poleward shift resulted in a similar displacement of the descending limbs of the Hadley cells. This ultimately led to a poleward relocation o ...
... subtropical jet streams were displaced poleward. The location of these westerly jets determines the latitudinal extent of the Hadley cells and, therefore, the poleward shift resulted in a similar displacement of the descending limbs of the Hadley cells. This ultimately led to a poleward relocation o ...
Are there connections between the Earth`s magnetic field and climate?
... magnetic field in ancient rocks has allowed retracing the evolution of the main tectonic plates, placing them in the proper paleogeographical context. Joint use of paleogeographic reconstructions (provided by paleomagnetists and marine geoscientists), paleo-sea level reconstructions (provided by str ...
... magnetic field in ancient rocks has allowed retracing the evolution of the main tectonic plates, placing them in the proper paleogeographical context. Joint use of paleogeographic reconstructions (provided by paleomagnetists and marine geoscientists), paleo-sea level reconstructions (provided by str ...
S-RIP Chapter on Stratosphere-Troposphere Coupling: Tentative Author Contributions
... Mean state and variability of the polar vortices. For SSW definitions; ZMZW at 60N and 10hPa, SSWs (splits and displacements), and moment diagnostics, NAM threshold. For climate corresponding definitions. Stratospheric climate change; regression based techniques (detection and change and surface tel ...
... Mean state and variability of the polar vortices. For SSW definitions; ZMZW at 60N and 10hPa, SSWs (splits and displacements), and moment diagnostics, NAM threshold. For climate corresponding definitions. Stratospheric climate change; regression based techniques (detection and change and surface tel ...
Can aerosols spin down the water cycle in a warmer and moister
... did not change significantly in the former Soviet Union [Easterling et al., 2000]. We suspect that these observed changes in the water cycle are closely linked to changes in surface energy budget. Thus the main question posed in this study is: How do greenhouse gases and aerosol concentrations modif ...
... did not change significantly in the former Soviet Union [Easterling et al., 2000]. We suspect that these observed changes in the water cycle are closely linked to changes in surface energy budget. Thus the main question posed in this study is: How do greenhouse gases and aerosol concentrations modif ...
PDF
... decreases that then recover late in the experiment and approach the reference value by 2080. The ...
... decreases that then recover late in the experiment and approach the reference value by 2080. The ...
Theoretical mechanism for natural radiative forcing of El Nino
... Shindell, D.T., Schmidt, G.A., Miller, R., Mann, M.E., Volcanic and Solar forcing of Climate Change During the Pre-Industrial era, Journal of Climate, 16, 4094-4107, 2003. ...
... Shindell, D.T., Schmidt, G.A., Miller, R., Mann, M.E., Volcanic and Solar forcing of Climate Change During the Pre-Industrial era, Journal of Climate, 16, 4094-4107, 2003. ...
Climate and Weather of the Sun-Earth System (CAWSES): Selected Papers... Edited by T. Tsuda, R. Fujii, K. Shibata, and M....
... It is believed that the global warming since the mid-20th century is primarily the result of the combustion of fossil fuel. The fact that the climate also changed in the past during periods of rather constant atmospheric greenhouse gas concentrations points to additional factors such as solar and vo ...
... It is believed that the global warming since the mid-20th century is primarily the result of the combustion of fossil fuel. The fact that the climate also changed in the past during periods of rather constant atmospheric greenhouse gas concentrations points to additional factors such as solar and vo ...
Solar Power Stations and Floating Solar Chimneys
... • The FSC technology has many benefits beyond its far less investment cost, however it has not yet been tested at a demonstration project • In order to generate 40% of the Greek electricity ( 25000 GWh) an investment on FSC technology of 12.5 billion EURO plus 1.5 billion EURO for the UHVDC transmis ...
... • The FSC technology has many benefits beyond its far less investment cost, however it has not yet been tested at a demonstration project • In order to generate 40% of the Greek electricity ( 25000 GWh) an investment on FSC technology of 12.5 billion EURO plus 1.5 billion EURO for the UHVDC transmis ...
Lan - Pat Arnott Web Site
... Radiative forcing due to BC Increase in TOA radiative forcing: • Absorbing the solar radiation reflected by the surface– atmosphere–cloud system. • Deposited over snow and sea ice decreases the surface ...
... Radiative forcing due to BC Increase in TOA radiative forcing: • Absorbing the solar radiation reflected by the surface– atmosphere–cloud system. • Deposited over snow and sea ice decreases the surface ...
Earth climate identification vs. anthropic global warming
... In all signals and proxies related to solar activity, one can find, with different relative magnitudes, the same cyclic component and the same LF component (HF component being widely considered a measurement noise). The mutual ratio between the cyclical and the LF components is extremely variable, de ...
... In all signals and proxies related to solar activity, one can find, with different relative magnitudes, the same cyclic component and the same LF component (HF component being widely considered a measurement noise). The mutual ratio between the cyclical and the LF components is extremely variable, de ...
By Chris Maloney Mentors: Tom Woods, Odele Coddington, Peter Pilewskie, Andrew Kren
... V*[Volcanic data] b) approximately 0.1 degree differences between this recent low solar min (2007-2009) and the past solar min in 1996 By understanding one forcing component on our atmosphere, we can then better understand how we humans affect our atmosphere ...
... V*[Volcanic data] b) approximately 0.1 degree differences between this recent low solar min (2007-2009) and the past solar min in 1996 By understanding one forcing component on our atmosphere, we can then better understand how we humans affect our atmosphere ...
Solar Changes and the Climate
... cycles (since the Maunder minimum), irradiance changes are estimated to be as high as 0.4% (Hoyt and Schatten (1993), Lean et al. (1995), Lean (2000), Lockwood and Stamper (1999) and Fligge and Solanki (2000)). This current cycle has noted has seen a decline of 0.15%. However this does not take into ...
... cycles (since the Maunder minimum), irradiance changes are estimated to be as high as 0.4% (Hoyt and Schatten (1993), Lean et al. (1995), Lean (2000), Lockwood and Stamper (1999) and Fligge and Solanki (2000)). This current cycle has noted has seen a decline of 0.15%. However this does not take into ...
Phenomenological solar signature in 400 years of reconstructed N. Scafetta
... example, UV energy changes are involved in production and loss of ozone, variations in the solar wind affect the size and intensity of the heliosphere and modulate the cosmic rays that may affect formation of clouds affecting Earth’s albedo [Pap and Fox, 2004]), since they are only partially known, ...
... example, UV energy changes are involved in production and loss of ozone, variations in the solar wind affect the size and intensity of the heliosphere and modulate the cosmic rays that may affect formation of clouds affecting Earth’s albedo [Pap and Fox, 2004]), since they are only partially known, ...
News - BESCOM : Bangalore Electricity Supply Company Limited
... meeting in Paris on Tuesday to ' ..to set up the alliance headquartake the al1ianc(lforward. ters in the country and to meet INSTA will work to increase recurringcosts for the first five investments in solar technolo- years. The government is also giesandapplir.:atfonsthatfocus working to build a co ...
... meeting in Paris on Tuesday to ' ..to set up the alliance headquartake the al1ianc(lforward. ters in the country and to meet INSTA will work to increase recurringcosts for the first five investments in solar technolo- years. The government is also giesandapplir.:atfonsthatfocus working to build a co ...
Climate sensitivity of the Earth to solar irradiance
... months is at variance with tens of years estimated in some energy-balance models involving the mixed-layer of the ocean. For example, Wigley and Raper [1990] predict that the sunspot cycle signal would be attenuated to values of 0.02 – 0.03K which is about 30% of what we observe. We suggest that th ...
... months is at variance with tens of years estimated in some energy-balance models involving the mixed-layer of the ocean. For example, Wigley and Raper [1990] predict that the sunspot cycle signal would be attenuated to values of 0.02 – 0.03K which is about 30% of what we observe. We suggest that th ...
Climate Change: The Sun`s Role
... The role of the sun in climate change remains contentious not so much because there is no data to support the thesis, but because there is no accepted mechanism to explain the positive feedback that must underlie the sometimes dramatic changes in climate resulting from relatively small changes in so ...
... The role of the sun in climate change remains contentious not so much because there is no data to support the thesis, but because there is no accepted mechanism to explain the positive feedback that must underlie the sometimes dramatic changes in climate resulting from relatively small changes in so ...
Climate hypersensitivity to solar forcing?
... climatic system to `externally' imposed radiative forcings would be to invoke other, as yet undetermined, radiative forcings negatively correlated with GHG forcing. One example is an incomplete accounting of aerosols in the radiative budget of the climate system, suggested by the new estimate of the ...
... climatic system to `externally' imposed radiative forcings would be to invoke other, as yet undetermined, radiative forcings negatively correlated with GHG forcing. One example is an incomplete accounting of aerosols in the radiative budget of the climate system, suggested by the new estimate of the ...
X - The Heartland Institute`s International Conferences on Climate
... and anthropogenic causes. The simulations represented by the band in (a) were done with only natural forcings: solar variation and volcanic activity. Those encompassed by the band in (b) were done with anthropogenic forcings: greenhouse gases and an estimate of sulphate aerosols, and those encompass ...
... and anthropogenic causes. The simulations represented by the band in (a) were done with only natural forcings: solar variation and volcanic activity. Those encompassed by the band in (b) were done with anthropogenic forcings: greenhouse gases and an estimate of sulphate aerosols, and those encompass ...
Solar Irradiance Variability
... During the last 30 years of space measurements, TSI shows a decline after 1980 of about 50 mWm-2 /decade. Comparing the minima values this is most pronounced in cycle 23. This recent decrease cannot be explained by the changes deduced from MgII index or F10.7. The only solar parameter showing such a ...
... During the last 30 years of space measurements, TSI shows a decline after 1980 of about 50 mWm-2 /decade. Comparing the minima values this is most pronounced in cycle 23. This recent decrease cannot be explained by the changes deduced from MgII index or F10.7. The only solar parameter showing such a ...
Solar activity and climate
Solar activity has been a main driver of climate change over geologic time, although its role in the recent warming has not been found to be significant.