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Extent

1 digital object.

Cite This Work

Ardhuin, Fabrice; Merrifield, Sophia; Terrill, Eric; Otero, Mark; Grouazel, Antoine (2020). Data from: Ice break-up controls dissipation of wind-waves across Southern Ocean sea ice. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0V40SM5

Description

Sea ice inhibits the development of wind‐generated surface gravity waves which are the dominant factor in upper ocean mixing and air‐sea fluxes. In turn, sea ice properties are modified by wave action. Understanding the interaction of ice and waves is important for characterizing both air‐sea interactions and sea ice dynamics. Current leading theory attributes wave attenuation primarily to scattering by ice floes. Here we use new in situ wave measurements to show that attenuation is dominated by dissipation with negligible effect by scattering. Time series of wave height in ice exhibit an "on/off" behavior that is consistent with switching between two states of sea ice; a relatively unbroken state associated with strong damping (off), possibly caused by ice flexure, and very weak attenuation (on) across sea ice that has been broken up by wave action.

Date Collected

• 2018-05 to 2018-07

Date Issued

• 2020

Authors

• Ardhuin, Fabrice
• Grouazel, Antoine
• Merrifield, Sophia T.
• Otero, Mark
• Terrill, Eric J.

Funding

Analysis was supported by the U.S. Office of Naval Research. We thank the New Zealand Navy for deploying the buoys.

Geographics

• Antarctic Ocean
• Southern Ocean

Topics

• Sea ice
• Wind waves

Formats

View formats within this collection

• data
• text

Language

• No linguistic content; Not applicable

Identifier

Identifier: Antoine Grouazel: https://orcid.org/0000-0002-9113-9467

Identifier: Eric Terrill: https://orcid.org/0000-0003-1807-8351

Identifier: Fabrice Ardhuin: https://orcid.org/0000-0002-9309-9681

Identifier: Mark Otero: https://orcid.org/0000-0001-6848-752X

Identifier: Sophia Merrifield: https://orcid.org/0000-0002-4152-7285

Related Resource

Primary associated publication

• Ardhuin, F., Otero, M., Merrifield, S., Grouazel, A., & Terrill, E. (2020). Ice break‐up controls dissipation of wind‐waves across Southern Ocean sea ice. Geophysical Research Letters, 47, e2020GL087699. https://doi.org/10.1029/2020GL087699