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https://github.com/anowacki/seistau.jl

Add seismic travel times to your traces with Seis.jl

https://github.com/anowacki/seistau.jl

Science Score: 23.0%

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Keywords

seis-jl seismology tau-p travel-times
Last synced: 11 months ago · JSON representation

Repository

Add seismic travel times to your traces with Seis.jl

Basic Info
  • Host: GitHub
  • Owner: anowacki
  • License: other
  • Language: Julia
  • Default Branch: master
  • Homepage:
  • Size: 83 KB
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  • Stars: 2
  • Watchers: 2
  • Forks: 1
  • Open Issues: 0
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seis-jl seismology tau-p travel-times
Created over 7 years ago · Last pushed about 6 years ago
Metadata Files
Readme License

README.md

SeisTau.jl

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Using

SeisTau integrates the TauPy and Seis packages, allowing one to easily use seismic travel time predictions for 1D Earth models with Seis.Traces.

SeisTau extends Seis.add_picks! so that you can add picks to your Traces like so:

```julia julia> using Seis, SeisTau

julia> t = sample_data(:array);

julia> add_picks!.(t, "PKIKP") 60-element Array{Seis.SeisDict{Union{Int64, Symbol},NamedTuple{(:time, :name),Tuple{Float32,Union{Missing, String}}}},1}: Seis.SeisDict(:A=>Seis.Pick{Float32,String}((time=1134.08, name="A")),:PKIKP=>Seis.Pick{Float32,String}((time=1126.4486, name="PKIKP")),1=>Seis.Pick{Float32,String}((time=137.35, name=missing))) ... ```

Here we have added a pick for the PKIKP phase to all of the traces at once using Julia's .-notation, broadcasting the call to add_picks! across each of the Traces in t.

You can now plot up the data aligned on this pick:

```julia julia> using Plots, Seis.Plot

julia> section(t, align="PKIKP", xlim=(-10,20), zoom=2) ```

Example record section aligned on pick

See Seis.picks for more information on access picks in Seis.

Installation

First, install Seis.jl.

Then, having chosen one of the options below:

```julia julia> ] # Pressing ']' enters pkg mode

(v1.1) pkg> add https://github.com/anowacki/TauPy.jl https://github.com/anowacki/SeisTau.jl ```

Note on Python installation

The TauPy package on which SeisTau relies uses the Obspy module obspy.taup to calculate travel times. Therefore, one needs Obspy to be installed. There are two options:

  1. Install Obspy locally if it is not already installed on your machine, then build PyCall pointing at that installation by setting the $PYTHON environment variable to the path to your python executable:
    • ENV["PYTHON"] = "python"; import Pkg; Pkg.build("PyCall")
  2. Allow PyCall to install its own private Miniconda distribution. In this case, Obspy will be automatically installed when adding TauPy above. N.B. There are intermittent problems with automatic installation via this option, so option 1 is recommended at present.

Owner

  • Name: Andy Nowacki
  • Login: anowacki
  • Kind: user

Lecturer at the School of Earth and Environment, University of Leeds, studying the Earth's deep interior.

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