Intercomparison of Observed and Modelled Sea-Surface Topographic Time-Series Near the New England Seamounts

Data from four arrays of inverted echo sounders equipped with pressure sensors and from a two-layer, primitive equation numerical model of the northwest Atlantic (including a prescribed Deep Western Boundary Current) are intercompared. Standard deviations of correlations between them, are examined a...

Full description

Bibliographic Details
Main Authors: Hallock, Z. R., Teague, W. J., Thompson, J. D.
Other Authors: NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
Format: Text
Language:English
Published: 1990
Subjects:
Physical and Dynamic Oceanography
*OCEAN MODELS
SEAMOUNTS
DETECTORS
OCEAN SURFACE
STATISTICS
FORECASTING
ARRAYS
SPECTRA
CORRELATION
CHAINS
PRESSURE
HORIZONTAL ORIENTATION
EQUATIONS
AMPLITUDE
GULF STREAM
NORTH ATLANTIC OCEAN
STANDARD DEVIATION
BAND SPECTRA
EAST(DIRECTION)
HEIGHT FINDING
LONGITUDE
NEW ENGLAND
MATHEMATICAL MODELS
OCEAN CURRENTS
PE61153N
WUDN394458
DD298 ONLY
WESTERN BOUNDARY CURRENTS
MEANDERS
ALTIMETRY
North Atlantic
Northwest Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA230797
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230797
Description
Summary:Data from four arrays of inverted echo sounders equipped with pressure sensors and from a two-layer, primitive equation numerical model of the northwest Atlantic (including a prescribed Deep Western Boundary Current) are intercompared. Standard deviations of correlations between them, are examined as a function of horizontal position. Variances contained in three spectral bands (secular - longer than 150 days; mesoscale - 150-20 days; high-frequency - 20-2 days) are also examined. High correlations between above-thermocline and barotropic surface-height components are found in all arrays. Remarkable agreement between model and observations is found for the region east of the New England Seamount Chain, in both basic statistics and band-averaged spectra. West of the NESC, differences are noted in spectral results and are partially related to a more easterly longitude for the onset of large-amplitude Gulf Stream meanders in the Model. Keywords: Ocean currents/models; Seamounts North Atlantic Ocean; Height finding; Ocean surface/forecasting. Availability: Naval Oceanographic and Atmospheric Research Laboratory, Stennis Space Center, MS 39529-5004.

Similar Items