Surface wave measurements using a ship-mounted ultrasonic altimeter

Kai Håkon Christensen; Johannes Röhrs; Brian Ward; Ilker Fer; Göran Broström; Øyvind Saetra; Øyvind Breivik

doi:10.1016/j.mio.2013.07.002

Surface wave measurements using a ship-mounted ultrasonic altimeter

Kai Håkon Christensen
, Johannes Röhrs
, Brian Ward
, Ilker Fer
, Göran Broström
, Øyvind Saetra
, Øyvind Breivik

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

35 Citations (Scopus)

Abstract

We present a method for measuring one-dimensional surface wave spectra using a ship-mounted ultrasonic altimeter in combination with a motion correction device. The instruments are mounted at the bow of the ship and provide high-resolution, local, wave information. We present results from three recent field studies. The results are compared with data from a conventional waverider buoy and, when in-situ observations are not available, with wave model analyses and satellite altimetry. We find good agreement with regard to integrated parameters such as significant wave height and mean period. Comparison with a waverider demonstrates fair agreement with regard to spectral shape, but the representation of the low frequency part depends on the quality of the motion correction data.

Original language	English
Pages (from-to)	1-15
Number of pages	15
Journal	Methods in Oceanography
Volume	6
DOIs	https://doi.org/10.1016/j.mio.2013.07.002
Publication status	Published - Jul 2013

Keywords

In-situ measurements
Surface waves
Ultrasonic altimeter

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10.1016/j.mio.2013.07.002

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title = "Surface wave measurements using a ship-mounted ultrasonic altimeter",

abstract = "We present a method for measuring one-dimensional surface wave spectra using a ship-mounted ultrasonic altimeter in combination with a motion correction device. The instruments are mounted at the bow of the ship and provide high-resolution, local, wave information. We present results from three recent field studies. The results are compared with data from a conventional waverider buoy and, when in-situ observations are not available, with wave model analyses and satellite altimetry. We find good agreement with regard to integrated parameters such as significant wave height and mean period. Comparison with a waverider demonstrates fair agreement with regard to spectral shape, but the representation of the low frequency part depends on the quality of the motion correction data.",

keywords = "In-situ measurements, Surface waves, Ultrasonic altimeter",

author = "Christensen, \{Kai H{\aa}kon\} and Johannes R{\"o}hrs and Brian Ward and Ilker Fer and G{\"o}ran Brostr{\"o}m and {\O}yvind Saetra and {\O}yvind Breivik",

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T1 - Surface wave measurements using a ship-mounted ultrasonic altimeter

AU - Christensen, Kai Håkon

AU - Röhrs, Johannes

AU - Ward, Brian

AU - Fer, Ilker

AU - Broström, Göran

AU - Saetra, Øyvind

AU - Breivik, Øyvind

PY - 2013/7

Y1 - 2013/7

N2 - We present a method for measuring one-dimensional surface wave spectra using a ship-mounted ultrasonic altimeter in combination with a motion correction device. The instruments are mounted at the bow of the ship and provide high-resolution, local, wave information. We present results from three recent field studies. The results are compared with data from a conventional waverider buoy and, when in-situ observations are not available, with wave model analyses and satellite altimetry. We find good agreement with regard to integrated parameters such as significant wave height and mean period. Comparison with a waverider demonstrates fair agreement with regard to spectral shape, but the representation of the low frequency part depends on the quality of the motion correction data.

AB - We present a method for measuring one-dimensional surface wave spectra using a ship-mounted ultrasonic altimeter in combination with a motion correction device. The instruments are mounted at the bow of the ship and provide high-resolution, local, wave information. We present results from three recent field studies. The results are compared with data from a conventional waverider buoy and, when in-situ observations are not available, with wave model analyses and satellite altimetry. We find good agreement with regard to integrated parameters such as significant wave height and mean period. Comparison with a waverider demonstrates fair agreement with regard to spectral shape, but the representation of the low frequency part depends on the quality of the motion correction data.

KW - In-situ measurements

KW - Surface waves

KW - Ultrasonic altimeter

UR - https://www.scopus.com/pages/publications/84888203120

U2 - 10.1016/j.mio.2013.07.002

DO - 10.1016/j.mio.2013.07.002

M3 - Article

SN - 2211-1220

VL - 6

SP - 1

EP - 15

JO - Methods in Oceanography

JF - Methods in Oceanography

ER -

Surface wave measurements using a ship-mounted ultrasonic altimeter

Abstract

Keywords

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