DOI: 10.1002/grl.50128
论文题名: Extracting tidal variability of sea ice concentration from AMSR-E passive microwave single-swath data: A case study of the Ross Sea
作者: MacK S. ; Padman L. ; Klinck J.
刊名: Geophysical Research Letters
ISSN: 0094-9312
EISSN: 1944-9043
出版年: 2013
卷: 40, 期: 3 起始页码: 547
结束页码: 552
语种: 英语
英文关键词: AMSR-E
; diurnal tides
; Ross Sea
; Sea ice concentration
Scopus关键词: Mechanical properties
; Ocean currents
; Signal processing
; Tides
; AMSR-E
; Diurnal tides
; Heat and freshwater fluxes
; Microwave scanning
; Passive microwaves
; Ross Sea
; Satellite passive microwave
; Sea ice concentration
; Sea ice
; AMSR-E
; barotropic tide
; heat flux
; ice mechanics
; ice-ocean interaction
; periodicity
; satellite data
; sea ice
; sea surface
; swath bathymetry
; tidal current
; tidal modeling
; Ross Sea
; Southern Ocean
英文摘要: The periodic divergence of stress applied by ocean tidal currents to sea ice affects the time-averaged ice concentration (Cice ) and heat and freshwater fluxes at the ocean surface. We demonstrate that, at sufficiently high latitudes, tidal variability in Cice can be extracted from single-swath data from the Advanced Microwave Scanning Radiometer-EOS (AMSR-E) satellite passive microwave sensor, although time intervals between swaths are irregular. For the northwest Ross Sea where tidal currents are large, tidal divergence is the dominant cause of Cice variability in winter, with a range of ±0.2 about a mean of ~0.8. Daily-averaged Cice values vary from >0.9 at neap tides to ~0.7 at spring tides. Variability at the fundamental tidal periods is about half that expected from an inverse barotropic tide model for the Ross Sea, suggesting that the measured tidal signal in Cice may be used to diagnose sea ice mechanical properties and ice/ocean coupling. Key Points We can extract tidal signals in sea ice concentration from satellite data Tides are the largest signal in sea ice concentration in the northern Ross Sea Measured tidal divergence is a test of ice mechanics and ocean/ice interactions ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878195294&doi=10.1002%2fgrl.50128&partnerID=40&md5=5b1b1e1a01c5dcf12612f74ee4a5ec5c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6576
Appears in Collections: 气候减缓与适应
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作者单位: Center for Coastal Physical Oceanography, 4111 Monarch Way, Norfolk, VA 23529, United States
Recommended Citation:
MacK S.,Padman L.,Klinck J.. Extracting tidal variability of sea ice concentration from AMSR-E passive microwave single-swath data: A case study of the Ross Sea[J]. Geophysical Research Letters,2013-01-01,40(3).