neic-glass3

gen-travel-times-app

gen-travel-times-app is an application that uses the glasscore traveltime libraries to generate the traveltime lookup files (.trv) used by neic-glass3 from a model file. Please note that this application is currently not optimized, and is extremely slow.

Building

To build gen-travel-times-app, set the BUILD_GEN-TRAVELTMES-APP option equal to true (1) in the cmake command or GUI.

Configuration

An example configuration for gen-travel-times-app is available in the gen-travel-times-app params directory

gen-travel-times.d

{
    "Configuration": "gen-travel-times-app",
    "FileExtension": ".trv",
    "OutputPath": "./",
    "Model": "./params/ak135_mod.d",
    "Branches": [
        {
            "Cmd": "GenerateTraveltime",
            "Branch": "P",
            "Rays": [
                "Pup",
                "P",
                "Pdiff"
            ],
            "DeltaTimeWarp": {
                "MinimumDistance": 0.0,
                "MaximumDistance": 360.0,
                "SlopeDecayConstant": 0.10,
                "SlopeZero": 0.05,
                "SlopeInfinite": 1.0
            },
            "DepthTimeWarp": {
                "MinimumDepth": -10.0,
                "MaximumDepth": 800.0,
                "SlopeDecayConstant": 0.10,
                "SlopeZero": 1.0,
                "SlopeInfinite": 10.0
            }
        }
    ]
}

• FileExtension - The file extension to use for travel time files
• OutputPath - The output directory to write travel time files to
• Model - The earth model file to use
• Branches - The list of travel time files to generate
• Branch - The branch name for the travel time file
• Rays - The rays (phases) to use in generating the file
• DeltaTimeWarp - The distance warp for this travel time file
• MinimumDistance - Start of warp in degrees
• MaximumDistance - End of warp in degrees
• SlopeDecayConstant - The decay exponent for the warp
• SlopeZero - The warp slope value at minimum
• SlopeInfinite - The warp slope value at maximum
• DepthTimeWarp - The depth warp for this travel time file
• MinimumDepth - Start of warp in kilometers
• MaximumDepth - End of warp in kilometers
• SlopeDecayConstant - The decay exponent for the warp
• SlopeZero - The warp slope value at minimum
• SlopeInfinite - The warp slope value at maximum

Documentation

Further documentation of the gen-traveltimes-app software is available here

Running

To run gen-travel-times-app, use the following command: gen-travel-times-app <configfile> [logname] where <configfile> is the required path the the gen-travel-times.d configuration fileand [logname] is an optional command that when present specifies the log file name and enables logging.

gen-travel-times-app uses the environment variable GLASS_LOG to define the location to write log files

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