Geophysics Levelling

The Geophysics Levelling extension is a specialized software tool designed to help identify and correct levelling errors in geophysical survey data. It features advanced capabilities for processing and enhancing airborne magnetic and other geophysical datasets, and provides a step-by-step methodology for performing a broad range of levelling and correction tasks.

The Microlevelling toolkit allows you to apply microlevelling corrections to line-based data, helping to remove subtle line-to-line discrepancies and improve data continuity.

Working in Oasis montaj requires a project file (*.gpf). A project encompasses all items in your workspace, including:

  • Data files such as databases, grids, maps, voxels, geosurfaces, and 3D views

  • Visualization tools like histograms and scatter plots

  • Project settings, including the menus currently displayed

This structure ensures that your entire working environment is saved and easily restored.

To begin working with the Geophysics Levelling extension, we recommend opening a new project and then loading the menus related to the extension.

Open a New Project

  1. On the Project menu select New. The New Project dialog will open.

    You can also select Create new project from the startup dialog that appears when you launch Oasis montaj.

  2. In the New Project dialog, specify the name and location for your new project file (*.gpf), then click Save.

  3. The new project will open, enabling the main menus, toolbar icons, and the Project Explorer. These visual indicators confirm that the system is ready for use.

Load the Menus

  1. On the Project menu, select Manage Menus, or click the Manage Menus icon on the Project Explorer toolbar. The Manage Menus dialog will appear.

  2. Expand the Extensions node, select Geophysics Levelling, and click OK. The menus related to the extension will now appear on the main menu bar.

The menu system is designed to provide quick access to a variety of tools and to guide you through the primary processing and filtering workflows in the extension.

To automatically load these menus in future projects, specify them in the Default menus field of the General Settings dialog.

Accessing Help

Once the Geophysics Levelling menus are loaded, click the Help button in any dialog opened from these menu items:

  • The reference topic for the current dialog will be displayed.

  • Use the Help Topics tab to navigate to others topics of interest.

  • Use the Search tab to find specific topics by entering keywords.

The Geophysics Levelling menu system is divided into two main menus:

  • Tie Line Levelling

  • Microlevelling