DOI: 10.1002/2016GL067713
论文题名: Airborne remote sensing of ocean wave directional wavenumber spectra in the marginal ice zone
作者: Sutherland P. ; Gascard J.-C.
刊名: Geophysical Research Letters
ISSN: 0094-9548
EISSN: 1944-9279
出版年: 2016
卷: 43, 期: 10 起始页码: 5151
结束页码: 5159
语种: 英语
英文关键词: attenuation
; ice floe
; marginal ice zone
; scanning lidar
; sea ice
; waves
Scopus关键词: Oceanography
; Optical radar
; Remote sensing
; Sea ice
; Surface waves
; Water waves
; Wave energy conversion
; Waves
; Airborne remote sensing
; Attenuation
; Directional filtering
; Ice floes
; Marginal Ice Zone
; Scattering mechanisms
; Spatial measurements
; Viscous dissipation
; Ice
英文摘要: Interactions between surface waves and sea ice are thought to be an important, but poorly understood, physical process in the atmosphere-ice-ocean system. In this work, airborne scanning lidar was used to observe ocean waves propagating into the marginal ice zone (MIZ). These represent the first direct spatial measurements of the surface wavefield in the polar MIZ. Data were compared against two attenuation models, one based on viscous dissipation and one based on scattering. Both models were capable of reproducing the measured wave energy. The observed wavenumber dependence of attenuation was found to be consistent with viscous processes, while the spectral spreading of higher wavenumbers suggested a scattering mechanism. Both models reproduced a change in peak direction due to preferential directional filtering. Floe sizes were recorded using colocated visible imagery, and their distribution was found to be consistent with ice breakup by the wavefield. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969917131&doi=10.1002%2f2016GL067713&partnerID=40&md5=0aa54e742b4b49f16b0f060897b880a6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10511
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Laboratoire d'Océanographie Physique et Spatiale, L'Institut Français de Recherche pour l'Exploitation de la Mer, Plouzané, France
Recommended Citation:
Sutherland P.,Gascard J.-C.. Airborne remote sensing of ocean wave directional wavenumber spectra in the marginal ice zone[J]. Geophysical Research Letters,2016-01-01,43(10).