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Proceedings Paper

Offshore wind profile measurements using a Doppler LIDAR at the Hazaki Oceanographical Research Station
Author(s): Susumu Shimada; Teruo Ohsawa; Tatsuya Ohgishi; Yoshihiro Kikushima; Testuya Kogaki; Koji Kawaguchi; Satoshi Nakamura
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Paper Abstract

Vertical wind speed profiles near the coast were observed using a Doppler Light Detection and Ranging (LIDAR) system at the Hazaki Oceanographical Research Station (HORS) from September 17 to 26, 2013. The accuracies of the theoretical wind profile models of the log profile model and the Monin-Obukov similarity (MOS) theory were examined by comparing them to those of the observed wind profiles. As a result, MOS, which takes into account the stability effects during wind profile calculations, successfully estimated the wind profile more accurately than the log profile model when the wind was from a sea sector (from sea to land). Conversely, both models did not estimate the profile adequately when the wind was from a land sector (from land to sea). Moreover, the wind profile for the land sector was found to include an obvious diurnal cycle, which is relevant to the stability change over land. Consequently, it is found that the atmospheric stability plays an important roll to determine the offshore wind speed profiles near the coast for not only the sea sector but also the land sector.

Paper Details

Date Published: 6 August 2014
PDF: 6 pages
Proc. SPIE 9232, International Conference on Optical Particle Characterization (OPC 2014), 92320R (6 August 2014); doi: 10.1117/12.2063201
Show Author Affiliations
Susumu Shimada, National Institute of Advanced Industrial Science and Technology (Japan)
Teruo Ohsawa, Kobe Univ. (Japan)
Tatsuya Ohgishi, National Institute of Advanced Industrial Science and Technology (Japan)
Yoshihiro Kikushima, National Institute of Advanced Industrial Science and Technology (Japan)
Testuya Kogaki, National Institute of Advanced Industrial Science and Technology (Japan)
Koji Kawaguchi, PARI (Japan)
Satoshi Nakamura, PARI (Japan)


Published in SPIE Proceedings Vol. 9232:
International Conference on Optical Particle Characterization (OPC 2014)
Nobuhiro Aya; Norihiko Iki; Tsutomu Shimura; Tomohiro Shirai, Editor(s)

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