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Wenjie Lei edited this page Apr 7, 2022 · 10 revisions

GLAD-M25 Model

1. Introduction

This page contains information for the high-resolution model file of GLAD-M25 that can be directly used in [SPECFEM3D_GLOBE] for global waveform simulations.

Currently, we provide 2 data formats to store the GLAD-M25.

  1. Binary format: Fortran binary format
  2. ADIOS1 format: file format developed by Oak Ridge National Lab aimed for high-performance I/O (https://csmd.ornl.gov/software/adios-1x)

2. Download Links

Model in both formats is hosted in the dataspace of Princeton University. The link is:https://dataspace.princeton.edu/handle/88435/dsp01sf268825c On this page, you could find more information on this page.

The direct link for downloading the model is https://app.globus.org/file-manager?destination_id=dc43f461-0ca7-4203-848c-33a9fc00a464&destination_path=%2Fn63q-r844%2F. Globus account is required for downloading model files.

In the globus portal, there are 3 items:

  1. DATASET_Readme.txt: general readme file.
  2. GLAD_M25.binary: GLAD-M25 in binary format.
  3. GLAD_M25.adios: GLAD-M25 in adios1 format.

You may only need to download one of the models based on the specific format you need.

3. Notes

If using the binary version, no external library is required.

If adios1 format, the adios1 library needs to be installed in the system. If you choose your use adios and need more instructions for setting adios1 up, please refer to this page.

Model files are located at DATA/GLL. Please copy the whole directory to your SPECFEM3D GLOBE with the same path:

mdkir ${your_specfem_dir}/DATA/GLL
cp -r DATA/GLL/* ${your_specfem_dir}/DATA/GLL

Along with the model file, benchmark files are also provided, including:

  1. DATA/Par_file: Parameter files for setting up the simulation. Please make sure to use the same settings when running benchmark tests.
  2. DATA/CMTSOLUTION
  3. DATA/STATIONS
  4. OUTPUT_FILES/*.sac: synthetic seismograms that are used for benchmark purpose.
  5. README_benchmark.txt

The version of SPECFEM3D GLOBE used for generating synthetic benchmark seismograms

commit e7fd95edda7066c0775b8b5d0adc7f740dece787
Author: Daniel Peter <daniel.peter22@gmail.com>
Date:   Fri Dec 17 15:02:15 2021 +0300

The same or more recent version of SPECFEM3D GLOBE is required to generate the same results. If you plan to run your own global simulations using GLAD-M25, please make sure the benchmark tests can be passed by comparing provided synthetic seismograms with your own ones.

4. Submit a ticket if you have questions

If you have any questions or issues, you may submit a ticket at the github issue page.

Useful Links

Here are some useful links:

ADIOS1

SPECFEM3D_GLOBE

GLAD-M25

SpecfemMagic

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