Computer aided compilation of settlement maps for the provinces of Friesland and Gelderland, The Netherlands
| Autor: | F. Schokking, B. Hoogendoorn |
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| Rok vydání: | 1991 |
| Předmět: | |
| Zdroj: | Geological Society, London, Engineering Geology Special Publications. 7:563-571 |
| ISSN: | 2041-4730 0267-9914 |
| DOI: | 10.1144/gsl.eng.1991.007.01.55 |
| Popis: | Engineering geological thematic maps for the prediction of settlement in Quaternary near surface sediments, resulting from hydrological changes, were compiled to be used in the regional groundwater planning for the Provinces of Gelderland and Friesland in the Netherlands. An existing computer program “ZETTING” used for settlement calculations for civil engineering purposes, was adapted for the processing of large data sets. The compilation of the settlement maps using Geographical Information Systems in the Geological Survey of The Netherlands and in the Departments of Water and Environment of the two provinces is described. For the map for the Province of Gelderland digitized type-profile map information and geotechnical properties of sub-regions were combined with hydrological data to calculate settlement and hydrodynamic period. A translation was made of borehole data into geotechnical properties, and hydrological data joined to the resulting data set for the calculation of the settlement map for the Province of Friesland. For both provinces a set of grid maps were compiled. Aspects of the computer aided compilation of the maps, such as data handling, choice of grid and grid transfers, computer calculations and map accuracy are discussed. |
| Databáze: | OpenAIRE |
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