Remote sensing of wind speed at sea surface level using HF skywave echoes from decametric waves

Remote sensing of wind speed at sea surface level using HF skywave echoes from decametric waves

Using an HF skywave radar to study the decametric sea waves, it appears that their amplitudes do not saturate as the wind speed increases. A measurement method, based on the Kahma sea wave spectrum, is proposed and radar estimations of the wind speed are compared with in situ measurements performed...

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Veröffentlicht in:Geophysical research letters 1990-04, Vol.17 (5), p.615-618
Hauptverfasser: Gaffard, C., Parent, J.
Format: Artikel
Sprache:eng
Schlagworte:
580000 - Geosciences
AMPLITUDES
COMPARATIVE EVALUATIONS
CORRELATIONS
Echoes
EVALUATION
FLOW RATE
Geophysics
GEOSCIENCES
GRAVITY WAVES
In situ measurement
Marine
Measurement methods
MEASURING INSTRUMENTS
MEASURING METHODS
RADAR
RANGE FINDERS
REMOTE SENSING
SEAS
Ships
SURFACE WATERS
VELOCITY
WATER WAVES
WIND
Wind speed
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Beschreibung
Zusammenfassung:Using an HF skywave radar to study the decametric sea waves, it appears that their amplitudes do not saturate as the wind speed increases. A measurement method, based on the Kahma sea wave spectrum, is proposed and radar estimations of the wind speed are compared with in situ measurements performed on board a ship. The rms difference between the two measurements is 2.5m/s and is probably mainly due to the spatial variability in the wind speed.
ISSN:0094-8276
1944-8007
DOI:10.1029/GL017i005p00615