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| Titel |
GPS-controlled tide gauges in Indonesia – a German contribution to Indonesia's Tsunami Early Warning System |
| VerfasserIn |
T. Schöne, J. Illigner, P. Manurung, C. Subarya, Khafid, C. Zech, R. Galas |
| 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 ; 11, no. 3 ; Nr. 11, no. 3 (2011-03-09), S.731-740 |
| Datensatznummer |
250009254
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| Publikation (Nr.) |
 copernicus.org/nhess-11-731-2011.pdf |
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| Zusammenfassung |
| Coastal tide gauges do not only play a central role in the study of
climate-related sea level changes but also in tsunami warning systems. Over
the past five years, ten GPS-controlled tide gauge systems have been
installed by the German Research Centre for Geosciences (GFZ) in Indonesia to
assist the development of the Indonesian Tsunami Early Warning System
(InaTEWS). These stations are mainly installed at the Indonesian coastline
facing the Indian Ocean. The tide gauge systems deliver information about the
instantaneous sea level, vertical control information through GPS, and
meteorological observations. A tidal analysis at the station's computer
allows the detection of rapid changes in the local sea level ("sea level
events"/SLE), thus indicating, for example, the arrival time of tsunamis.
The technical implementation, communication issues, the operation and the sea
level event detection algorithm, and some results from recent earthquakes and
tsunamis are described in this paper. |
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