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| Titel |
The Use of HF Radar for Resource Assessment |
| VerfasserIn |
Daniel Conley, Martin Austin |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250057908
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| Zusammenfassung |
| Commercial development of the generation of renewable energy in the marine environment
will be predicated on the implementation of reliable methods for the assessment of the in situ
energy resource. The most commonly utilized methods for assessments of the wave
and current fields currently involves the deployment of in situ sensors. While the
deployment of such instrumentation has a long pedigree and has led to numerous
advancements in oceanography, there are significant shortcomings associated with
the use of in situ instrumentation for resource characterization related to Marine
Renewable Energy (MRE). In particular, such measurements are highly susceptible
to environmentally related damage and even loss. Operationally, deployment and
maintenance costs are high and reliability is low. Technically, the information is spatially
constrained and, as relates to the horizontal plain, typically only provides point
measurements.
HF (High Frequency) radar in a beam forming configuration provides a potential solution
for resource assessment for both currents and waves which overcomes many of the above
limitations. These sensors which operate using shore based antenna arrays provide a remote
sensing alternative which delivers continuous measurements in real time. Using phased array
technology, the HF radar system provides independent estimates of surface current and wave
parameters over areas O(100 km^2).
In order to evaluate this application, a WERA HF radar system has been recently installed
on the North Coast of Cornwall in the UK to provide measurements of surface
currents as well as complete directional wave spectra in a high resolution (1 km
spacing) grid around the Wave Hub site. In addition a collection of traditional sensors
have been simultaneously deployed in order to provide independent measurements
for validation. The presentation will discuss the expected characteristics of the
proposed system, practical considerations for the utilization of such a system and an
initial evaluation of the system performance during the first months of operation. |
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