NASA Logo

NTRS - NASA Technical Reports Server

Back to Results
Bottom Pressure Tides Along a Line in the Southeast Atlantic Ocean and Comparisons with Satellite AltimetrySeafloor pressure records, collected at 11 stations aligned along a single ground track of the Topex/Poseidon and Jason satellites, are analyzed for their tidal content. With very low background noise levels and approximately 27 months of high-quality records, tidal constituents can be estimated with unusually high precision. This includes many high-frequency lines up through the seventh-diurnal band. The station deployment provides a unique opportunity to compare with tides estimated from satellite altimetry, point by point along the satellite track, in a region of moderately high mesoscale variability. That variability can significantly corrupt altimeter-based tide estimates, even with 17 years of data. A method to improve the along-track altimeter estimates by correcting the data for nontidal variability is found to yield much better agreement with the bottom-pressure data. The technique should prove useful in certain demanding applications, such as altimetric studies of internal tides.
Document ID
20110013477
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1007/s10236-010-0316-0
Authors
Ray, Richard D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Byrne, Deidre A. (Maine Univ. Orono, ME, United States)
Date Acquired
August 25, 2013
Publication Date
July 25, 2010
Publication Information
Publication: Oceans Dynamics
Volume: 60
Subject Category
Oceanography
Report/Patent Number
GSFC.JA.4513.2011
Report Number: GSFC.JA.4513.2011
Funding Number(s)
CONTRACT_GRANT: NSF OCE-0099177
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available