Thermal tides Archives - Astrobiology

Maximum reached by the imaginary part of the semidiurnal surface pressure component given by Eq. (2.4) as a function of the atmospheric opacity and radiative cooling frequency. The black solid and dashed lines define, from below, regions where the thermotidal response is sufficient to cancel the gravitational counterpart in the Precambrian (4587−538 Myr) and the late Paleozoic/early Mesozoic (350−250 Myr). The shaded areas indicate the contraints on αA and σ0 derived from observations and GCM simulations, along with the corresponding radiative timescales. The yellow and red arrows indicate the amplification factors needed to reach the Precambrian and Mesozoic/Paleozoic thresholds, respectively. The pink and green dots represent the GCM simulations of Wu et al. (2023), Fig. S4 (W23), and of Deitrick & Goldblatt (2024), Fig. 1 (DG24), respectively. Figure adapted from F24, Fig. 5. -- astro-ph.EP

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report

Thermal Tides On Rocky Planets Through A Novel Fully Analytical Solution

by Keith CowingOctober 22, 2024October 22, 2024

Thermal tides are atmospheric tides caused by variations in day-night insolation, similar to gravitational tides but with key differences.