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| Titel |
"Last mile" challenges to in situ volcanic data transmission |
| VerfasserIn |
J. F. B. D. Fonseca, B. V. E. Faria, J. Trindade, G. Cruz, A. Chambel, F. M. Silva, R. L. Pereira, T. Vazão |
| 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 ; 13, no. 12 ; Nr. 13, no. 12 (2013-12-23), S.3419-3428 |
| Datensatznummer |
250085595
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| Publikation (Nr.) |
 copernicus.org/nhess-13-3419-2013.pdf |
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| Zusammenfassung |
| Scientists play a key role in volcanic risk management, but rely heavily on
fast access to data acquired in the vicinity of an active volcano. Hazardous
volcanoes are often located in remote areas were telecommunications
infrastructure is fragile. Besides being exposed directly to the volcanic
hazard, the infrastructure in such remote areas can also suffer from "last
mile" limitations derived from lack of market demand for data transmission
services. In this paper, we report on the findings of the FP7 MIAVITA project in
the topic of volcanic data transmission. We draw on the contribution of
partners from emergent or developing countries to identify the main
bottlenecks and fragilities. We also present the results of an experiment
conducted on Fogo Island, Cape Verde, to test the availability of VSAT
services adequate for volcanic monitoring. We warn against the false sense
of security resulting from increasingly ubiquitous connectivity, and point
out the lack of reliability of many consumer-type services, particularly
during emergencies when such services are likely to crash due to excess of
demand from the public. Finally, we propose guidelines and recommend best
practices for the design of volcanic monitoring networks in what concerns
data transmission. In particular, we advise that the data transmission
equipment close to the exposed area should be owned, operated and maintained
by the volcanic monitoring institution. We exemplify with the set-up of the
Fogo telemetric interface, which uses low-power licence-free radio modems to
reach a robust point of entry into the public network at a suitable distance
from the volcano. |
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