Geotechnical Map Viewer
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GEOTECHNICAL MAP VIEWER
Beatriz Mozo Lopez and Ronnie Creighton
The Geotechnical Map Viewer is a web based mapping application that is now available via the Geological Survey of Ireland web page (www.gsi.ie/mapping). The aim of the application is to provide public user access to detailed information on digitised boreholes and trial pit logs. Associated test data is also accessible. This data is stored on the National Geotechnical Borehole Database which is held in GSI.
The digitised data from the National Geotechnical Borehole Database can be viewed in the application. There are currently about 11,500 boreholes and trial pits digitised out of a total of some 35,000 input into the database.
The first screen (above) shows a map of Ireland with areas highlighted for which data is available. The tool bar to the left provides the user access to the many features within the viewer.
A user must identify the area of interest by 'zooming in' to the region of interest. Alternatively the gazateer can be used. It is then a matter of interacting with the system to select the area and then to obtain the data (boreholes and trial pits) within the area. The search can be performed in different ways:-
1. Select by Report ID - type in the Report Number.
2. Select using the interactive graphic tools within the system
- Select by point, select a point with the mouse and then select the data available within a distance (radius) from the point. The distance can be set manually.
- Select by polyline, create a line on screen with a few mouse clicks and then select data available within a distance (buffer) from the line. Enter the width of the buffer zone, say 50 or 100m.
- Select by rectangle, draw a rectangle with the rectangle tool and select the data within it.2. Select using the interactive graphic tools within the system
- Select by rectangle, draw a rectangle with the rectangle tool and select the data within it.
When Select is chosen the information that the system contains is shown and by navigating through the system it is possible to get more and more information.
There are also printing options for the site records window and for the map window.
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