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| Titel |
Terrain modelling by kinematical GPS survey |
| VerfasserIn |
G. Nico, P. Rutigliano, C. Benedetto, F. Vespe |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 5, no. 2 ; Nr. 5, no. 2 (2005-03-18), S.293-299 |
| Datensatznummer |
250002342
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| Publikation (Nr.) |
 copernicus.org/nhess-5-293-2005.pdf |
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| Zusammenfassung |
| This work presents the first results of an experiment aiming to derive a
high resolution Digital Terrain Model (DTM) by kinematic GPS surveying. The
accuracy of the DTM depends on both the operational GPS precision and the
density of GPS samples. The operational GPS precision, measured in the
field, is about 10cm. A Monte Carlo analysis is performed to study
the dependence of the DTM error on the sampling procedure. The outcome of
this analysis is that the accuracy of the topographic reconstruction is less
than 1m even in areas with a density of samples as low as one sample per
100m2, and becomes about 30cm in areas with at least one
sample per 10m2. The kinematic GPS technique gives a means for
a fast and accurate mapping of terrain surfaces with an extension of a few km2.
Examples of application are the investigation of
archaeological sites and the stability analysis of landslide prone areas. |
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