P013-0008
Venus Global Ionosphere‐Thermosphere Model

Tuesday, 8 December 2020
Poster
Brandon Ponder, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Stephen W Bougher, Climate and Space Sciences and Engineering Department, Ann Arbor, MI, United States, Aaron J Ridley, Univ Michigan, Ann Arbor, MI, United States and David J Pawlowski, Eastern Michigan University, Ypsilanti, MI, United States
Abstract:
A new Venus Global Ionosphere‐Thermosphere Model (V‐GITM) is presented that combines the terrestrial GITM framework with Venus fundamental physical parameters, ion‐neutral chemistry, and key radiative processes in order to capture the basic observed features of the thermal, compositional, and dynamical structure of the Venus atmosphere from 70 km to 170 km. Atmosphere processes are included based in part upon formulations used in previous lower and upper atmosphere Venus GCMs. This enabled V‐GITM validation studies to focus on simulations for a range of solar cycle conditions. Key upper atmosphere measurements from the Pioneer Venus Orbiter Neutral Gas and Ion Mass Spectrometers are selected for comparison to corresponding V‐GITM neutral temperatures and neutral‐ion densities.
<< Previous Abstract | Next Abstract >>