Results 11 to 20 of about 54,891 (314)

The influence of solar wind variability on magnetospheric ULF wave power [PDF]

Annales Geophysicae, 2015
Magnetospheric ultra-low frequency (ULF) oscillations in the Pc 4–5 frequency range play an important role in the dynamics of Earth's radiation belts, both by enhancing the radial diffusion through incoherent interactions and through the coherent ...
D. Pokhotelov, I. J. Rae, K. R. Murphy, I. R. Mann   +3 more
doaj   +2 more sources

Solar Irradiance Variability: Modeling the Measurements

Earth and Space Science, 2020
New models of the Sun's irradiance variability are developed from 15 years of direct observations made by the Solar Radiation and Climate Experiment (SORCE) spacecraft from 2003 to 2017 (inclusive).
J. L. Lean, O. Coddington, S. V. Marchenko, J. Machol, M. T. DeLand, G. Kopp   +5 more
doaj   +2 more sources

Holocene Millennial-Scale Solar Variability and the Climatic Responses on Earth

Universe, 2021
The solar impact on Earth’s climate is both a rich and open-ended topic with intense debates. In this study, we use the reconstructed data available to investigate periodicities of solar variability (i.e., variations of sunspot numbers) and temperature ...
Xinhua Zhao, Willie Soon, Victor M. Velasco Herrera   +2 more
doaj   +1 more source

Solar irradiance variability [PDF]

Astronomische Nachrichten, 2013
AbstractThe Sun has long been considered a constant star, to the extent that its total irradiance was termed the solar constant. It required radiometers in space to detect the small variations in solar irradiance on timescales of the solar rotation and the solar cycle. A part of the difficulty is that there are no other constant natural daytime sources
Solanki, S., Unruh, Y.
openaire   +3 more sources

Sunspot observations at Kawaguchi Science Museum: 1972 – 2013

Geoscience Data Journal, 2023
Individual sunspot observations have formed a ground basis of international sunspot number, a unique reference for long‐term solar variability in the centennial timescale.
Hisashi Hayakawa, Daisuke Suzuki, Sophie Mathieu, Laure Lefèvre, Hitoshi Takuma, Eijiro Hiei   +5 more
doaj   +1 more source

Solar Irradiance Variability Monitor for the Galileo Solar Space Telescope Mission: Concept and Challenges

Frontiers in Physics, 2022
Long and reliable total solar irradiance (TSI) time series is one of the essential parameters for understanding solar contributions to climate change. The minor fluctuations of TSI in long timescales could impact the energy balance.
Franciele Carlesso, Jenny Marcela Rodríguez Gómez‬, Jenny Marcela Rodríguez Gómez‬, Adriany Rodrigues Barbosa, Luis Eduardo Antunes Vieira, Luis Eduardo Antunes Vieira, Alisson Dal Lago   +6 more
doaj   +1 more source

Allocation of Spinning Reserves in Autonomous Grids Considering Frequency Stability Constraints and Short-Term Solar Power Variations

IEEE Access, 2023
Low-inertia, isolated power systems face the problem of resiliency to active power variations. The integration of variable renewable energy sources, such as wind and solar photovoltaic, pushes the boundaries of this issue further.
Erick F. Alves, Louis Polleux, Gilles Guerassimoff, Magnus Korpas, Elisabetta Tedeschi   +4 more
doaj   +1 more source

Solar Signature in Climate Indices

Atmosphere, 2022
The influence of solar/geomagnetic activity on climate variables still remains a fully unclarified problem, although many scientific efforts have been made to better understand it.
Constantin Mares, Venera Dobrica, Ileana Mares, Crisan Demetrescu   +3 more
doaj   +1 more source

Solar variability and climate [PDF]

Weather, 2000
Solar radiation is the fundamental energy source for the atmosphere and the global average equilibrium temperature of the Earth is determined by a balance between the energy acquired by the solar radiation absorbed and the energy lost to space by the emission of heat radiation. The interaction of this radiation with the climate system is complex but it
  +5 more sources

Time Lag Between Cosmic-Ray and Solar Variability: Sunspot Numbers and Open Solar Magnetic Flux [PDF]

, 2022
Solar magnetic activity drives the dominant 11-year cyclic variability of different space environmental indices, but they can be delayed with respect to the original variations due to the different physical processes involved.
Kähkönen, Riikka, Hofer, Bernhard, Krivova, N., Koldobskiy, Sergey A., Kovaltsov, Gennady A., Kovaltsov, G., Kähkönen, R., Usoskin, Ilya G., Hofer, B., Usoskin, I., Koldobskiy, S., Krivova, Natalie A.   +11 more
core   +1 more source