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Related papers: Clouds and the Faint Young Sun Paradox

200 papers

Dark matter in the form of Weakly Interacting Massive Particles (WIMPs) can be captured by the Sun and the Earth, sink to their cores, annihilate and produce neutrinos that can be searched for with neutrino telescopes. The calculation of…

High Energy Astrophysical Phenomena · Physics 2012-07-11 Sofia Sivertsson , Joakim Edsjo

Ubiquitous, yet elusive to a complete understanding: Tiny, warm clouds with faint visual signatures play a critical role in Earth's energy balance. These "twilight clouds", as they are sometimes called, form under weak updraft conditions.…

Atmospheric and Oceanic Physics · Physics 2024-05-21 Manuel Santos Gutiérrez , Mickaël David Chekroun , Ilan Koren

Clouds have a strong impact on the climate of planetary atmospheres. The potential scattering greenhouse effect of CO2 ice clouds in the atmospheres of terrestrial extrasolar planets is of particular interest because it might influence the…

Earth and Planetary Astrophysics · Physics 2017-06-16 Daniel Kitzmann

As the 21st century progresses, photovoltaic technology is becoming a major provider of the worlds electricity, while effects of global climate change unfold. This development begs the question: is climate change affecting the energy…

Physics and Society · Physics 2019-08-20 Ian Marius Peters , Tonio Buonassisi

As dark matter appears to comprise most of the Galactic mass, some of it may accumulate in the cores of stars, thereby making the Sun a laboratory for constraining various dark matter theories. We consider the effects on the solar structure…

Solar and Stellar Astrophysics · Physics 2025-05-06 Earl Patrick Bellinger , Matt E. Caplan

The clear sky instantaneous radiative forcings of the 14 halogenated gases previously shown to have the largest contribution to global warming, were found. The calculation used the absorption cross sections for the halogenated gases which…

Atmospheric and Oceanic Physics · Physics 2023-06-26 W. A. van Wijngaarden , W. Happer

Greenhouse gases, most importantly water vapor, increase the emissivity and decrease the albedo of clouds for thermal radiation. The modifications, which can be of order 10% for optically thick clouds, depend on the attenuation coefficient…

Atmospheric and Oceanic Physics · Physics 2024-01-09 W. A. van Wijngaarden , W. Happer

In this paper we derive a new formula for the global temperature change and major feedback portions in the climate response. In our earlier paper we calculated from the experimental values the sensitivity about ${\rm 0.058~K/(W/m^2)}$. This…

Atmospheric and Oceanic Physics · Physics 2019-01-01 Jyrki Kauppinen , Pekka Malmi

Surface solar irradiance varies on scales as small as seconds or meters due to scattering and absorption by the atmosphere. Clouds are the main driver of this variability, but moisture structures in the atmospheric boundary layer and…

Atmospheric and Oceanic Physics · Physics 2024-04-08 Wouter Mol , Bert Heusinkveld , Mary Rose Mangan , Oscar Hartogensis , Menno Veerman , Chiel van Heerwaarden

In this paper we will prove that GCM-models used in IPCC report AR5 fail to calculate the influences of the low cloud cover changes on the global temperature. That is why those models give a very small natural temperature change leaving a…

General Physics · Physics 2019-07-13 Jyrki Kauppinen , Pekka Malmi

The South and East Asian summer monsoons are globally significant meteorological features, creating a strongly seasonal pattern of precipitation. The stability of the monsoon is of extreme importance for a vast range of ecosystems and for…

Atmospheric and Oceanic Physics · Physics 2023-10-27 Lucy Recchia , Valerio Lucarini

The atmospheric temperatures and concentrations of Earth's five most important, greenhouse gases, H$_2$O, CO$_2$, O$_3$, N$_2$O and CH$_4$ control the cloud-free, thermal radiative flux from the Earth to outer space. Over 1/3 million lines…

Atmospheric and Oceanic Physics · Physics 2020-06-08 W. A. van Wijngaarden , W. Happer

An analysis of the distribution and kinematics of interstellar material within 500 pc of the Sun leads to the conclusion that the galactic environment of the Sun changes with time. Consideration of evidence for interstellar gas interacting…

Astrophysics · Physics 2007-05-23 P. C. Frisch

The theory for the formation of the first population of stars (Pop III) predicts a IMF composed predominantly of high-mass stars, in contrast to the present-day IMF, which tends to yield stars with masses less than 1 M_Solar. The leading…

Astrophysics of Galaxies · Physics 2015-05-27 Gustavo Dopcke , Simon C. O. Glover , Paul C. Clark , Ralf S. Klessen

By performing three-dimensional radiation hydrodynamics simulations, we study the formation of young massive star clusters (YMCs, $M_{*}>10^4~M_{\odot}$) in clouds with the surface density ranging from $\Sigma_{\rm cl} = 80$ to…

Astrophysics of Galaxies · Physics 2021-08-18 Hajime Fukushima , Hidenobu Yajima

A significant correlation between the annual cosmic ray flux and the amount of low clouds has recently been found for the past 20 years. However, of the physical explanations suggested, none has been quantitatively verified in the…

Atmospheric and Oceanic Physics · Physics 2015-06-26 I. G. Usoskin , N. Marsh , G. A. Kovaltsov , K. Mursula , O. G. Gladysheva

Is the Sun likely to have a more opaque interior than previously thought? The solar oxygen (or abundance) problem can be solved with higher interior opacities, reconciling abundance analyses based on 3D convective atmospheres with the…

Solar and Stellar Astrophysics · Physics 2018-04-12 Regner Trampedach

Analyses of the cosmic microwave background (CMB) radiation maps made by the Wilkinson Microwave Anisotropy Probe (WMAP) have revealed anomalies not predicted by the standard inflationary cosmology. In particular, the power of the…

Earth and Planetary Astrophysics · Physics 2014-11-20 V. Dikarev , O. Preuss , S. Solanki , H. Krueger , A. Krivov

Large masses of absorbing material are inferred to exist in cooling flows in clusters of galaxies from the excess X-ray absorption in the spectra of some X-ray clusters. The absorbing material is probably in the form of cold clouds…

Astrophysics · Physics 2009-10-31 A. C. S. Friaca , L. C. Jafelice

We first recall fundamentals of elementary climate physics: solar constant, radiative balance, greenhouse effect, astronomical parameters of the climate (theory of Milankovitch). Without disputing the analyzes of climatologists and the…

Physics and Society · Physics 2023-05-25 Daniel Parrochia