Wind Speed Measured from Underwater Gliders Using Passive Acoustics
Wind Speed Measured from Underwater Gliders Using Passive Acoustics
复制标题
使用被动声学从水下滑翔机测量风速
DOI:
10.1175/jtech-d-17-0209.1
复制
发表时间:
2018
影响因子:
2.2
通讯作者:
Cauchy P
中科院分区:
文献类型:
--
作者:
Cauchy P
Wind speed measurements are needed to understand ocean–atmosphere coupling processes and their effects on climate. Satellite observations provide sufficient spatial and temporal coverage but are lacking adequate calibration, while ship- and mooring-based observations are spatially limited and have technical shortcomings. However, wind-generated underwater noise can be used to measure wind speed, a method known as Weather Observations Through Ambient Noise (WOTAN). Here, we adapt the WOTAN technique for application to ocean gliders, enabling calibrated wind speed measurements to be combined with contemporaneous oceanographic profiles over extended spatial and temporal scales. We demonstrate the methodology in three glider surveys in the Mediterranean Sea during winter 2012/13. Wind speeds ranged from 2 to 21.5 m s−1, and the relationship to underwater ambient noise measured from the glider was quantified. A two-regime linear model is proposed, which validates a previous linear model for light winds (below 12 m s−1) and identifies a regime change in the noise generation mechanism at higher wind speeds. This proposed model improves on previous work by extending the validated model range to strong winds of up to 21.5 m s−1. The acquisition, data processing, and calibration steps are described. Future applications for glider-based wind speed observations and the development of a global wind speed estimation model are discussed.
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影响因子:
4.5
作者:
S. Riser;J. Nystuen;A. Rogers
通讯作者:
S. Riser;J. Nystuen;A. Rogers
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Craig M. Lee;J. Gobat;L. Rainville
通讯作者:
L. Rainville
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
Wayne W. Crouch;P. Burt
通讯作者:
P. Burt
DOI:
--
发表时间:
1996
期刊:
OCEANS 96 MTS/IEEE Conference Proceedings. The Coastal Ocean - Prospects for the 21st Century
影响因子:
--
作者:
Ram Vakkayil;H. Graber;W. Large
通讯作者:
W. Large
影响因子:
2.8
作者:
M. Bourassa;S. Gille;D. Jackson;J. Roberts;G. Wick
通讯作者:
M. Bourassa;S. Gille;D. Jackson;J. Roberts;G. Wick