Marquart, Nicolas Pascal (2007) WP4430 Ground Based System. In: Workshop on New Earth Oberservation Techniques for Tsunami Detection and Geohazards Monitoring. Workshop on New Earth Oberservation Techniques for Tsunami Detection and Geohazards Monitoring, 2007-11-26 - 2007-11-28, Jakarta, Indonesien.
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Abstract
The requirements of a possible HF ground based radar system as required for a continuous observation over a large ocean area is investigated. In these studies the basic geophysical tsunami parameters which are accessible for a HF radar remote sensing system are summarised and discussed. Here, the interaction of a High Frequency field HF (3–30 MHz) with ocean waves is of particular interest and therefore reviewed in details. An approaching Tsunami determines a relevant departure from standard ocean surface current patterns. By continuously monitoring the current field with a HF radar ground based system along the coastline, a potentially dangerous Tsunami could be accurately detected when the first wave front is still sufficiently far from the shore. The Doppler resolution for Tsunami induced surface currents is investigated by the Fourier transformed of two synthetic generated HF time series, backscattered from an illuminated ocean surface patch. The temporal evolution of the ocean surface is performed by a phase modulation in the Fourier domain.
Item URL in elib: | https://elib.dlr.de/52424/ | ||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||
Title: | WP4430 Ground Based System | ||||||
Authors: |
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Date: | November 2007 | ||||||
Journal or Publication Title: | Workshop on New Earth Oberservation Techniques for Tsunami Detection and Geohazards Monitoring | ||||||
Refereed publication: | No | ||||||
Open Access: | Yes | ||||||
Gold Open Access: | No | ||||||
In SCOPUS: | No | ||||||
In ISI Web of Science: | No | ||||||
Status: | Published | ||||||
Keywords: | Tsunami, HF Radar, Ocean wave Radar, Ocean wave spetra, ocean surface currents, JONSWAP | ||||||
Event Title: | Workshop on New Earth Oberservation Techniques for Tsunami Detection and Geohazards Monitoring | ||||||
Event Location: | Jakarta, Indonesien | ||||||
Event Type: | international Conference | ||||||
Event Dates: | 2007-11-26 - 2007-11-28 | ||||||
Organizer: | LAPAN und DLR | ||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||
HGF - Program: | Space (old) | ||||||
HGF - Program Themes: | W EO - Erdbeobachtung | ||||||
DLR - Research area: | Space | ||||||
DLR - Program: | W EO - Erdbeobachtung | ||||||
DLR - Research theme (Project): | W - Vorhaben SAR-Expert-Support-Lab (old) | ||||||
Location: | Oberpfaffenhofen | ||||||
Institutes and Institutions: | Microwaves and Radar Institute > Microwave Systems Microwaves and Radar Institute | ||||||
Deposited By: | Marquart, Dr. Nicolas Pascal | ||||||
Deposited On: | 21 Dec 2007 | ||||||
Last Modified: | 31 Jul 2019 19:21 |
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