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Related papers: Deep Water Cycling and Delayed Onset Cooling of th…

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Aims: The long-term carbon cycle for planets with a surface entirely covered by oceans works differently from that of the present-day Earth because inefficient erosion leads to a strong dependence of the weathering rate on the rate of…

Earth and Planetary Astrophysics · Physics 2019-07-03 Dennis Höning , Nicola Tosi , Tilman Spohn

The ability of a planet to maintain surface water, key to life as we know it, depends on solar and planetary energy. As a star ages, it delivers more energy to a planet. As a planet ages it produces less internal heat, which leads to…

Earth and Planetary Astrophysics · Physics 2021-06-29 Johnny Seales , Adrian Lenardic

After describing all the contradictions associated with the current Plate Tectonics theory, this paper proposes a model where a single cause can explain all geophysical and geological phenomena. The source of the Earth's activity lies in…

Geophysics · Physics 2016-08-16 André Rousseau

Earth's climate, mantle, and core interact over geologic timescales. Climate influences whether plate tectonics can take place on a planet, with cool climates being favorable for plate tectonics because they enhance stresses in the…

Earth and Planetary Astrophysics · Physics 2017-11-21 Bradford J. Foley , Peter E. Driscoll

The long-term carbon cycle is vital for maintaining liquid water oceans on rocky planets due to the negative climate feedbacks involved in silicate weathering. Plate tectonics plays a crucial role in driving the long-term carbon cycle…

Earth and Planetary Astrophysics · Physics 2015-10-14 Bradford J. Foley

Variation in the balance of forces that drive and resist tectonic plate motions allows small terrestrial planet to cooler slower than larger ones. Given that interior cooling affects surface environment, through volcanic/geologic activity,…

Earth and Planetary Astrophysics · Physics 2021-06-09 Johnny Seales , Adrian Lenardic

Large terrestrial planets are expected to have muted topography and deep oceans, implying that most super-Earths should be entirely covered in water, so-called waterworlds. This is important because waterworlds lack a silicate weathering…

Earth and Planetary Astrophysics · Physics 2014-01-06 Nicolas B. Cowan , Dorian S. Abbot

The stability of Earth's climate on geological timescales is enabled by the carbon-silicate cycle that acts as a negative feedback mechanism stabilizing surface temperatures via the intake and outgas of atmospheric carbon. On Earth, this…

Earth and Planetary Astrophysics · Physics 2018-05-02 Diana Valencia , Vivian Yun Yan Tan , Zachary Zajac

In this paper we present a series of models for the deep water cycle on super-Earths experiencing plate tectonics. The deep water cycle can be modeled through parameterized convection models coupled with a volatile recycling model. The…

Earth and Planetary Astrophysics · Physics 2015-06-23 Laura Schaefer , Dimitar Sasselov

The hydrologic cycle has wide impacts on the ocean salinity and circulation, carbon and nitrogen cycles, and the ecosystem. Under anthropogenic global warming, previous studies showed that the intensification of the hydrologic cycle is a…

Atmospheric and Oceanic Physics · Physics 2024-05-06 Jiachen Liu , Jun Yang , Feng Ding , Gang Chen , Yongyun Hu

As the number of detected rocky extrasolar planets increases, the question of whether their surfaces could be habitable is becoming more pertinent. On Earth, the long-term carbonate silicate cycle is able to regulate surface temperatures…

Earth and Planetary Astrophysics · Physics 2021-10-08 Amanda Kruijver , Dennis Höning , Wim van Westrenen

Recent studies have shown that ocean dynamics can have a significant warming effect on the permanent night sides of 1 to 1 tidally locked terrestrial exoplanets with Earth-like atmospheres and oceans in the middle of the habitable zone.…

Earth and Planetary Astrophysics · Physics 2019-02-13 Jun Yang , Dorian S. Abbot , Daniel D. B. Koll , Yongyun Hu , Adam P. Showman

Earth's geodynamo has operated for over 3.5 billion years. The magnetic field is currently powered by thermocompositional convection in the outer core, which involves the release of light elements and latent heat as the inner core…

Earth and Planetary Astrophysics · Physics 2024-09-11 Victor Lherm , Miki Nakajima , Eric G. Blackman

We use numerical climate simulations, paleoclimate data, and modern observations to study the effect of growing ice melt from Antarctica and Greenland. Meltwater tends to stabilize the ocean column, inducing amplifying feedbacks that…

The existence of plate tectonics on the Earth is directly dependent on the internal viscosity contrast, mass of the planet, availability of liquid water and an internal heat source. However, the initial conditions of rotational velocity and…

Earth and Planetary Astrophysics · Physics 2022-02-24 Rajagopal Anand

Terrestrial exoplanets in the canonical habitable zone may have a variety of initial water fractions due to random volatile delivery by planetesimals. If the total planetary water complement is high, the entire surface may be covered in…

Earth and Planetary Astrophysics · Physics 2017-06-27 Thaddeus D. Komacek , Dorian S. Abbot

The ever-expanding catalog of detected super-Earths calls for theoretical studies of their properties in the case of a substantial water layer. This work considers such water planets with a range of masses and water mass fractions (2 to 5…

Earth and Planetary Astrophysics · Physics 2015-05-18 Roger Fu , Richard J. OConnell , Dimitar D. Sasselov

The growth history of the inner core is inherently linked to the thermal history of the Earth. The crystallization of the inner core may have been delayed by supercooling, and went through an initial phase of fast growth after the…

Geophysics · Physics 2020-04-02 Marine Lasbleis , Mathilde Kervazo , Gael Choblet

Glacial cycles redistribute water between oceans and continents causing pressure changes in the upper mantle, with consequences for melting of Earth's interior. Using Plio-Pleistocene sea-level variations as a forcing function, theoretical…

Water content and the internal evolution of terrestrial planets and icy bodies are closely linked. The distribution of water in planetary systems is controlled by the temperature structure in the protoplanetary disk and dynamics and…

Earth and Planetary Astrophysics · Physics 2018-02-21 Julien Monteux , Gregor J. Golabek , David C. Rubie , Gabriel Tobie , Edward D. Young
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