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Publicação
Assessing the wave energy resource using remote sensed data
Autores
Orientador(es)
Resumo(s)
The use of accurate remote sensed wave data in the
coastal area (water depth up to 80m) will enable a high
quality characterization of the wave energy resource.
Work has been carried out with this objective for a
number of years namely assessing the quality of the
radar altimeter and SAR sensors data.
In this paper a summary of the quality of wave
period estimates from the NASA/CNES Jason radar
altimeter is presented, showing that the analytical
models that have been proposed in recent years provide
already accurate results.
This paper also includes a verification of ESA
ENVISAT SAR data (height, period and direction
parameters in addition to the shape of frequency spectra)
against NDBC buoy data, which has shown good
accuracy for wave energy resource assessment.
However, the long Exact-Repeat-Period of NASA (10
days) and of ESA satellites (35 days) poses serious
limitation to the usefulness of their wave measurements
except for long-term wave climate assessment. These
shortcomings are expected to be overcome by the new
high spatial-resolution TerraSAR-X satellite that is
obtaining reliable data for nearshore areas, being able to
provide data at 2 - 3 day interval.
Descrição
Palavras-chave
Remote Sensed Data Period Algorithms Directional Spectra
Contexto Educativo
Citação
Pontes, M.T.; Bruck, M.; Lehner, S. Assessing the wave energy resource using remote sensed data. In: EWTEC 2009: 8th European Wave and Tidal Energy Conference held in Uppsala, Sweden, 7-10 September, 2009 : Proceedings, p. 111-116.
Editora
Division for Electricity, Uppsala University, Uppsala, Sweden