https://github.com/gregstarr/gnss-tid

https://github.com/gregstarr/gnss-tid

Last synced: about 1 year ago
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• Host: GitHub
• URL: https://github.com/gregstarr/gnss-tid
• Owner: gregstarr
• Created: 2024-09-18T19:20:03.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-12-09T04:20:32.000Z (over 1 year ago)
• Last Synced: 2025-02-05T13:48:31.067Z (over 1 year ago)
• Language: Python
• Size: 7.97 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# gnss-tidi

### Links

- [Trello Link](https://trello.com/b/Yy8y614c/onr24-tid)

- [Box Link](https://jhuapl.app.box.com/folder/247818918892)

# GNSS Traveling Ionospheric Distrubances Imaging software.

This software package contains python scripts for converting line-of-sight GNSS TEC obervations into TID maps.

Image interpolations implemented with

- moving Gaussian window

- moving median window

- MetPy natural neighbor (NN) interpolation to grid and to data point

Image conversion from geographic / spherical to regional cartesian coordinate system

Spectral focusing of the images as a function of projection altitude based on 2D DFT

# coordinate transform

### US example

![Alt text](image.png)

### Polar Example

![Alt text](image-1.png)