A comparison of scatterometer and HF radar wind direction measurements

Wyatt, Lucy R. (2018) A comparison of scatterometer and HF radar wind direction measurements. Journal of Operational Oceanography, 11 (1). pp. 54-63.

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Abstract

Scatterometer winds are increasingly being used by Meteorological Services to validate and assimilate into their forecast models and reanalyses. In this paper, ASCAT wind directions obtained in coastal regions around Australia are compared with those derived from ground-based HF radar systems. Good agreement is demonstrated at wind speeds greater than 5 m/s. At lower wind speeds, scatterometer winds are not expected to be as accurate and the HF radar is probably measuring swell rather than wind direction. Examples are presented that demonstrate the advantage for regional coastal wind and wave modelling of the higher temporal resolution available with the HF radar which enables tracking of frontal features.

Item ID: 53447
Item Type: Article (Research - C1)
ISSN: 1755-8778
Keywords: HF radar, wind direction, scatterometer, ASCAT, coastal winds, IMOS, ACORN
Copyright Information: © 2018 Institute of Marine Engineering, Science & Technology.
Date Deposited: 03 May 2018 12:11
FoR Codes: 04 EARTH SCIENCES > 0401 Atmospheric Sciences > 040102 Atmospheric Dynamics @ 50%
04 EARTH SCIENCES > 0405 Oceanography > 040503 Physical Oceanography @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 34%
96 ENVIRONMENT > 9602 Atmosphere and Weather > 960202 Atmospheric Processes and Dynamics @ 33%
96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961102 Physical and Chemical Conditions of Water in Coastal and Estuarine Environments @ 33%
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