Mixed Layer Depth Distributions from SVSTD Data.

Mixed layer depths defined in terms of each of four parameters (temperature, sound speed, density and stability) are determined for an area in the northern North Atlantic. The distributions of the mixed layer depth are broken down by season (spring, summer and fall) and by area (Rockall Trough, Icel...

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Bibliographic Details
Main Authors: Molinelli,Eugene, Donelson,John, Lilly,Linda
Other Authors: SCIENCE APPLICATIONS INC MCLEAN VA
Format: Text
Language:English
Published: 1981
Subjects:
Physical and Dynamic Oceanography
Acoustics
*UNDERWATER ACOUSTICS
*SEA WATER
DENSITY
TEMPERATURE
STABILITY
OCEAN SURFACE
DEPTH
OCEANOGRAPHIC DATA
SEASONAL VARIATIONS
ACOUSTIC VELOCITY
STRATIFICATION
NORTH ATLANTIC OCEAN
OCEAN RIDGES
ICELAND
FAROE ISLANDS
SUBMARINE TROUGHS
*Mixed layers(Marine)
Rockall trough
Iceland flank
Faroe Islands
Rockall Trough
Iceland
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA105669
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA105669
Description
Summary:Mixed layer depths defined in terms of each of four parameters (temperature, sound speed, density and stability) are determined for an area in the northern North Atlantic. The distributions of the mixed layer depth are broken down by season (spring, summer and fall) and by area (Rockall Trough, Iceland Flank, Iceland-Faeroe Front). It is found that seasonal fluctuations in values of mixed layer depth are in excess of 40 meters (fall deeper than summer). Variation in the values of mixed layer depth by area are only about 10 m but are also significant. The Iceland Flank mixed layers are deeper than the Rockall Trough or the Iceland Faeroe Frontal Zone mixed layers. The stability definition is found to be faulty in its present form and an increase in the significant peak criteria from 2 to 3 cycles per hour is suggested. The Iceland-Faeroe Frontal Zone has greater deviation in MLDs which affect the different definitions of MLD in a complex manner. (Author)

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