This API is designed for modelling of marine CSEM data in time and frequency domain on a remote cluster/cloud service. It may be used for feasibility and interpretation work on EM data with Jupyter Notebook.
A 3D CSEM online modelling service supporting the API is available at https://api.geotech.no and provided by GeoContrast AS on AS-IS basis during trial period. You may request a free trial API key by sending an email with a short description of your use case to contact form at http://www.geocontrast.no
Run the tutorial now in your browser:
Current features provided by https://api.geotech.no :
| Current version features | Available |
|---|---|
| Layered model | Yes |
| Embedded boxes | Yes |
| Resistivity depth gradient | No |
| Spline horizons | No |
| Frequency domain | Yes |
| Time domain | No |
| Anisotropy VTI | No |
| Anisotropy TTI | No |
| Magnetic field | No |
This simple models can be useful for feasibility studies, survey parameter testing, and some basic data analysis.
The geophysical model is defined in right-handed Cartesian coordinate system with Z axis pointing down. z=0 sea surface equal to the top of the first layer. All units are in SI. The source is horizontal electric dipole with given length with its center coordinates (0,0,source_layer_base-source_altitude) and aligned along X axis.
| Parameter limit | Lower | Higher |
|---|---|---|
| Source receiver distance | 0 | 15000 |
| Number of receivers | 1 | 1000 |
| Frequency | 0.1 | 5.0 |
| Resistivities | 0.2 | 1000 |
| Layer thinckness | 50 | 2000 |
| Box width | 50 | 5000 |
| Box thickness | 50 | 1000 |
| Number of boxes | 0 | 3 |
| Source length | 100 | 400 |
The API is documented by the set of Jupyter Notebook tutorials published in this repository
Copyright 2018 Geocontrast AS, Oslo, Norway