Feasibility Study of Tsunami Detection using GNSS Reflections
- Paper number
IAC-06-B1.4.04
- Author
Dr. François Soulat, Starlab Barcelona SL, Spain
- Coauthor
Mr. Marco Caparrini, Starlab Barcelona SL, Spain
- Coauthor
Dr. Esteve Farrés, Starlab Barcelona SL, Spain
- Coauthor
Dr. Giulio Ruffini, Starlab Barcelona SL, Spain
- Coauthor
Mr. Christopher Buck, European Space Agency (ESA)/ESTEC, The Netherlands
- Coauthor
Dr. Manuel Martin-Neira, European Space Agency (ESA)/ESTEC, The Netherlands
- Year
2006
- Abstract
We report on the analysis of the applicability of the GNSS-R concept (PARIS) to the detection of tsunamis. The study first focuses on the requirements needed to detect a tsunami from ground/air and space, with a focus on the problem of detecting and mapping a tsunami from space for warning optimal performance (no missed events, few false alarms). The user requirements are defined in terms of altimetric precision, spatial resolution and global coverage over the oceans, repeatability and temporal coverage.
We then investigate the GNSS-R altimetric capabilities with regards to the observation requirements. We focus on the translation of ocean synoptic scale altimetry scientific requirements into sensor/mission specifications. Altimetric accuracy and precision have been studied in different scenarios, by considering antenna specifications, code selection, ionosphere and troposphere effects. The study characterizes the achievements of a Low Earth Orbit satellite mission, as proposed in PARIS ESA studies, in terms of temporal and spatial resolutions.
In particular, this study shows the performance of the PARIS system for the detection of tsunami with a baseline of 10 spacecrafts. Simulations of such a mission enable to depict the performance of tsunami detection. By considering a real sea bed earthquake database (around 490 locations) the time of detection and sampling density have been determined through Monte-Carlo simulations.
It has been shown that 80
- Abstract document
- Manuscript document
IAC-06-B1.4.04.pdf (🔒 authorized access only).
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