Work Description
Title: The Venus Global Ionosphere-Thermosphere Model (V-GITM): A Coupled Thermosphere and Ionosphere Formulation Open Access Deposited
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(2023). The Venus Global Ionosphere-Thermosphere Model (V-GITM): A Coupled Thermosphere and Ionosphere Formulation [Data set], University of Michigan - Deep Blue Data. https://doi.org/10.7302/4wp8-6t20
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Files (Count: 2; Size: 14.2 GB)
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README-VGITM.txt | 2023-11-22 | 2023-11-22 | 2.52 KB | Open Access |
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plotting_routines.zip | 2023-11-22 | 2023-11-22 | 14.2 GB | Open Access |
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Date: September 14th, 2023
Dataset Title: The Venus Global Ionosphere-Thermosphere Model (V-GITM): A Coupled Thermosphere and Ionosphere Formulation
Dataset Creators: B. M. Ponder & A. J. Ridley & S. W. Bougher & D. Pawlowski & A. Brecht
Dataset Contact: Brandon Ponder bponder@umich.edu
Funding: 2028125 (NSF), 80NSSC20K1581 (NASA), 80NSSC19K0562 (NASA)
Key Points:
- A new, non-hydrostatic Venus ionosphere-thermosphere model is introduced with
new physics not previously included in Venus GCMs.
- Simulations during solar minimum conditions are used for data-model comparisons
of the temperatures, plasma and neutral densities.
- The influence of the retrograde superrotating zonal flow is explored in relation to
how it affects the neutral temperature and velocities.
Research Overview
A state-of-the-art Venus global circulation model is being presented. The new
model, V-GITM, has implications for usefulness in answering unknown questions about
Venus’ atmosphere, the physics of CO2 rich planets, and Venus missions utilizing the
aerobraking maneuver, like VERITAS or DAVINCI. Many V-GITM simulations were performed
and the results were compared to some of the existing Venus datasets to assess the
accuracy of V-GITM. Furthermore, the cloud layer below the thermosphere has a unique
wind pattern and its impact on the thermosphere temperatures and winds were explored.
Also, some of the driving mechanisms necessary for creating a nightside ionosphere at
Venus were examined.
Methodology:
These data were generated by running the Venus Global Ionosphere-Thermosphere Model at solar minimum and extracting the modeled thermospheric and ionospheric state variables. The data is then post-processed and visualized in a combination of Python.
Files contained:
Please refer to specific README.txt's in each Fig/ directory.
Related publication(s):
Ponder, Brandon & Ridley, Aaron J. & Bougher, Stephen W. & Pawlowski, D. & Brecht, A. (2023). The Venus Global Ionosphere-Thermosphere Model (V-GITM): A Coupled Thermosphere and Ionosphere Formulation. JGR Planets. In Press.
Use and Access:
This data set is made available under a Creative Commons Public Domain
license (CC0 1.0). The python scripts contained were ran on macOS
Monterey version 12.7 with Python 3.9.
Numpy version: 1.19.4
Pandas version: 1.2.0
To Cite Data:
Ponder, Brandon & Ridley, Aaron J. & Bougher, Stephen W. & Pawlowski, D. & Brecht, A. (2023). The Venus Global Ionosphere-Thermosphere Model (V-GITM): A Coupled Thermosphere and Ionosphere Formulation. JGR Planets. In Press.