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Changes in the atmospheric composition alter the magnitude and partitioning between the downward propagating solar and atmospheric longwave radiative fluxes heating the Earth's surface. These changes are computed by radiative transfer codes…

Atmospheric and Oceanic Physics · Physics 2020-04-30 Chirag Dhara

We demonstrate an alternative correlation between the El Ni\~no Southern Oscillation (ENSO) and global temperature variation to that shown by McLean et al. [2009]. We show 50% of the variation in RATPAC-A tropospheric temperature (and 54%…

Atmospheric and Oceanic Physics · Physics 2009-08-14 David R. B. Stockwell , Anthony Cox

In magnetized, stratified astrophysical environments such as the Sun's corona and solar wind, Alfv\'enic fluctuations ''reflect'' from background gradients, enabling nonlinear interactions and thus dissipation of their energy into heat.…

Solar and Stellar Astrophysics · Physics 2023-08-22 Romain Meyrand , Jonathan Squire , Alfred Mallet , Benjamin D. G. Chandran

In order to understand the climate on terrestrial planets orbiting nearby Sun-like stars, one would like to know their thermal inertia. We use a global climate model to simulate the thermal phase variations of Earth-analogs and test whether…

Earth and Planetary Astrophysics · Physics 2015-06-05 Nicolas B. Cowan , Aiko Voigt , Dorian S. Abbot

We assess the dependence of Earth's disk-integrated mid-infrared thermal emission spectrum on observation geometries and investigate which and how spectral features are impacted by seasonality on Earth. We compiled an exclusive dataset…

Earth and Planetary Astrophysics · Physics 2023-04-04 Jean-Noel Mettler , Sascha P. Quanz , Ravit Helled , Stephanie L. Olson , Edward W. Schwieterman

By generalizing the theory of convection to any type of thermal and compositional source terms (diabatic processes), we show that thermohaline convection in Earth oceans, fingering convection in stellar atmospheres, and moist convection in…

Ice cores are known to be rich in information regarding past climates, and the possibility that they record astronomical phenomena has also been discussed. Rood et al. were the first to suggest, in 1979, that nitrate ion (NO3-)…

Never is the difference between thermal equilibrium and turbulence so dramatic, as when a quadratic invariant makes the equilibrium statistics exactly Gaussian with independently fluctuating modes. That happens in two very different yet…

Chaotic Dynamics · Physics 2021-06-30 Natalia Vladimirova , Michal Shavit , Gregory Falkovich

The role of turbulence and turbulent mixing in the formation and evolution of the early universe is examined. A new quantum-gravitational-dynamics model suggests that the mechanism of the hot big bang is functionally equivalent to the…

Astrophysics · Physics 2007-05-23 Carl H. Gibson

The ocean thermohaline circulation, also called meridional overturning circulation, is caused by water density contrasts. This circulation has large capacity of carrying heat around the globe and it thus affects the energy budget and…

Analysis of PDEs · Mathematics 2016-09-07 Hongjun Gao , Jinqiao Duan

In the solar wind an equipartition of kinetic energy densities can be easily established between thermal and suprathermal electrons and the instability conditions are markedly altered by the interplay of these two populations. The new…

Space Physics · Physics 2019-02-05 S. M. Shaaban , M. Lazar , P. H. Yoon , S. Poedts

The absence of large-angle correlations in the map of cosmic microwave background temperature fluctuations is among the well-established anomalies identified in full-sky and cut-sky maps over the past three decades. Suppressed large-angle…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-08 C. J. Copi , J. Gurian , A. Kosowsky , G. D. Starkman , H. Zhang

A climate response function is introduced that consists of six exponential (low-pass) filters with weights depending as a power law on their e-folding times. The response of this two-parameter function to the combined forcings of solar…

Atmospheric and Oceanic Physics · Physics 2013-10-24 J. H. van Hateren

We analyze European temperature variability from station data with the method of detrended fluctuation analysis. This method is known to give a scaling exponent indicating long range correlations in time for temperature anomalies. However,…

Data Analysis, Statistics and Probability · Physics 2019-10-02 Philipp G Meyer , Holger Kantz

Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe. A simple model calculation demonstrates explicitly how…

Astrophysics · Physics 2007-05-23 Arthur Kosowsky

Most prior works studying tidal interactions in tight star/planet or star/star binary systems have employed linear theory of a viscous fluid in a uniformly-rotating two-dimensional spherical shell. However, compact systems may have…

Solar and Stellar Astrophysics · Physics 2023-10-11 Aurélie Astoul , Adrian J. Barker

The sunspot record since 1749 is made of three major cycles (9.98, 10.9 and 11.86 yr). The side frequencies are related to the spring tidal period of Jupiter and Saturn (9.93 yr) and to the tidal sidereal period of Jupiter (11.86 yr). A…

Solar and Stellar Astrophysics · Physics 2012-03-20 Nicola Scafetta

The variable Sun is the most likely candidate for natural forcing of past climate change on time scales of 50 to 1000 years. Evidence for this understanding is that the terrestrial climate correlates positively with solar activity. During…

Solar and Stellar Astrophysics · Physics 2015-05-27 A. I. Shapiro , W. Schmutz , E. Rozanov , M. Schoell , M. Haberreiter , A. V. Shapiro , S. Nyeki

The energy-balance model of global climate, which is taking into account a nontrivial role of solar and galactic protons, is presented. The model is described by the equation of fold catastrophe relative to increment of temperature, where…

Atmospheric and Oceanic Physics · Physics 2007-05-23 V. D. Rusov , A. V. Glushkov , V. N. Vaschenko , V. N. Pavlovich , T. N. Zelentsova , O. T. Mihalus , V. A. Tarasov , D. N. Saranuk

Arctic sea ice extent has drawn increasing interest and alarm from geoscientists, owing to its rapid decline. In this article, we propose a Bayesian spatio-temporal hierarchical statistical model for binary Arctic sea ice data over two…

Applications · Statistics 2020-03-17 Bohai Zhang , Noel Cressie
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