Qatar Geological Mapping Project - Phase II

Task 6 – 3D GEOLOGICAL MODEL DESIGN, DEVELOPMENT & IMPLEMENTATION

Activities & Milestones

The aim of this task is to develop a 3D geologic model (or models) for the areas of greater Doha, Lusail-Al Khor, Al Wakra-Messaied. For this purpose, at first, the spatial data layers (input data) such as geological maps, borehole data, drill logs, cross-sections, geophysical maps, lab data, and remote sensing data to be used to develop 3D geologic model.

All input data will be provided and transferred to the selected GIS software environment
for modeling. A 3D geologic model (3DGM) will be developed in the GIS environment, and the 3DGM model will be implemented into a web-based environment (geoportal).

3DGM will be carried out in following stages;

STAGE I- Main Software to be utilized for 3D geologic modelling:

ArcGIS Pro
ArcScene
ArcMap
Extension/toolbox for ArcGIS: Aquaveo Arc Hydro Groundwater (AHGW)

STAGE II- Input Data and Sources:

GRDB database
Existing data from QGMP Phase I studies
Data to be gathered from QGMP Phase II studies
The possible spatial data layers anticipated to be used as input data in 3DGM are given below.
Digital elevation model (DEM)
Geological maps (lithological units)
Tectonic structures
Geophysical data
Points of boreholes
Data from boreholes (drill logs)
Karst features (raster or vector format)
Hydrogeological data
Remote sensing data
Laboratory data
Other GIS data (settlements, rivers, etc.)
Other available underground and surface data

STAGE III- Preparing Input Data for 3DGM:

Lithological units
Tectonic structures (folds, faults)
Geophysical data
Borehole points
Drill logs
Settlements
Rivers, hdyrogeological data
Karst features
Cavern
Other data

STAGE IV- Design and Development of 3DGM

Surface geology

Subsurface geology

Cross sections

Fence Diagram

Geophysical Data

Kastic/cavern Data

STAGE V- Implement in a Web-based

Key features:

  1. Creating web scenes that can be used in custom web, desktop, and native applications.
  2. Exploring data in ArcGIS Geoportal.
  3. Defining basemap and data layers for a scene.
  4. Displaying data in 3D from feature services, vector tile services, image tile services, and other services.
  5. Displaying 3D data from scene services.
  6. Configuring layer styles and labels.
  7. Creating global and local visualizations of 3D data.
  8. Rendering terrain with elevation.
  9. Visualizing 3D objects.
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