Variations of Heat Flux and Elastic Thickness of Mercury From 3-D Thermal Evolution Modeling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10489920" target="_blank" >RIV/00216208:11320/24:10489920 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=zzZdZs1jWC" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=zzZdZs1jWC</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2024GL110622" target="_blank" >10.1029/2024GL110622</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variations of Heat Flux and Elastic Thickness of Mercury From 3-D Thermal Evolution Modeling

Popis výsledku v původním jazyce

Mercury&apos;s low obliquity and 3:2 spin-orbit resonance create a surface temperature distribution with large latitudinal and longitudinal variations. These propagate via thermal conduction through the thin silicate shell influencing the interior temperature distribution. We use 3-D thermal evolution models to investigate the effects of lateral variations of surface temperature and crustal thickness on the surface and core-mantle boundary (CMB) heat fluxes, and elastic thickness distribution. Surface temperature variations cause a long-wavelength perturbation of the heat fluxes, as well as of the elastic lithosphere thickness, while variations in crustal thickness affect these quantities at small spatial scales. Like the surface temperature, the present-day CMB heat flux pattern is characterized primarily by spherical harmonics of degrees two and four, which could affect dynamo generation. Placing robust constraints on the thermal evolution based on the available estimates of the age and thickness of the elastic lithosphere remains challenging due to their large uncertainties.

Název v anglickém jazyce

Variations of Heat Flux and Elastic Thickness of Mercury From 3-D Thermal Evolution Modeling

Popis výsledku anglicky

Mercury&apos;s low obliquity and 3:2 spin-orbit resonance create a surface temperature distribution with large latitudinal and longitudinal variations. These propagate via thermal conduction through the thin silicate shell influencing the interior temperature distribution. We use 3-D thermal evolution models to investigate the effects of lateral variations of surface temperature and crustal thickness on the surface and core-mantle boundary (CMB) heat fluxes, and elastic thickness distribution. Surface temperature variations cause a long-wavelength perturbation of the heat fluxes, as well as of the elastic lithosphere thickness, while variations in crustal thickness affect these quantities at small spatial scales. Like the surface temperature, the present-day CMB heat flux pattern is characterized primarily by spherical harmonics of degrees two and four, which could affect dynamo generation. Placing robust constraints on the thermal evolution based on the available estimates of the age and thickness of the elastic lithosphere remains challenging due to their large uncertainties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10500 - Earth and related environmental sciences

Projekt

<a href="/cs/project/GN23-06513I" target="_blank" >GN23-06513I: Slapová odezva terestrických (exo)planet a binárních asteroidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

1944-8007

Svazek periodika

51

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

e2024GL110622

Kód UT WoS článku

001368074500001

EID výsledku v databázi Scopus

2-s2.0-85208092185