https://github.com/geoscience-community-codes/tephra2-inversion

inversion using the tephra2 forward model and the downhill simplex method
https://github.com/geoscience-community-codes/tephra2-inversion

Last synced: about 1 month ago
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inversion using the tephra2 forward model and the downhill simplex method

• Host: GitHub
• URL: https://github.com/geoscience-community-codes/tephra2-inversion
• Owner: geoscience-community-codes
• License: gpl-3.0
• Created: 2021-11-17T21:48:21.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2021-12-02T03:57:32.000Z (over 2 years ago)
• Last Synced: 2024-02-12T17:07:11.407Z (5 months ago)
• Language: C
• Size: 56.6 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-volcano - Tephra2 inversion - Tephra2 inversion method written in C with some [post-processing tools](https://github.com/e5k/Tephra2Utils) in Matlab ([reference](https://pubs.geoscienceworld.org/gsl/books/book/1732/chapter/107601115/Inversion-is-the-key-to-dispersionunderstanding)). (Codes / Deposit characterisation)

README

        
# tephra2-inversion

inversion using the tephra2 forward model and the downhill simplex method

To run the inversion model, at the command line, type:

```

mpirun -np nodes -hostfile machines tephra2-inversion_2020 tepha2-inversion.conf data_file wind_file

```

where,

- **mpirun** is the wrapper script for *gcc* when using mpi libraries

- **nodes** is the number of cluster compute nodes to use

- **machines** is a text file listing the name of each compute node and the number of cpu cores useable on that node ([an example](inputs/machines))

- **tephra2-inversion_2020** is the executable name

- **tephra2-inversion.conf** is the file of parameters ([an example](inputs/tephra2-inversion.conf))

- **data_file** is a text file of tephra accumulation data from chosen area ([an example](inputs/colima_59wgs84z13.xyz)) following the format:

    ```

    Easting(m)  Northing(m)  Grid-elevation(m)  Mass(kg/m^2)

    ```

- **wind_file** is a text file of wind data to use for the inversion