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CTD casts off Pram Point to determine the internal wave structure under the shore fast ice of McMurdo Sound
Entry ID: K053_1993_1994_NZ_4


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Summary
Abstract: The internal wave structure under the shore fast ice of McMurdo Sound was surveyed. An internal wave is a wave propagating along a density stratification in the water mass. The discontinuity in density is caused by a difference in the temperature or salinity on either side of the boundary surface in the water mass. Previous studies conducted either single CTD profiles or spot temperature and salinity measurement using sample bottles and reversing thermometers. These methods lack the regular time scale necessary for determining internal wave structure. By carrying out monitoring of the water column it was hoped to find internal waves missed by earlier oceanographic surveys of McMurdo Sound. 46 CTD casts were taken from two locations near Scott Base, in McMurdo Sound. Two series of casts were taken, the first consisted of three days when casts were taken on an approximately hourly basis, and the other contained data taken over thirteen days.
Geographic Coverage
 N: -75.3667 S: -75.3667  E: -110.6667  W: -110.6667
 N: -77.166664 S: -77.166664  E: -126.9  W: -126.9
 N: -77.03333 S: -77.03333  E: -126.1  W: -126.1
 N: -76.666664 S: -76.666664  E: -125.8  W: -125.8
 N: -76.48333 S: -76.48333  E: -125.8  W: -125.8
 N: -76.05 S: -76.05  E: -124.416664  W: -124.416664

Temporal Coverage
Start Date: 1993-11-19
Stop Date: 1993-12-05


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > PRAM POINT
GEOGRAPHIC REGION > POLAR


Science Keywords
OCEANS >OCEAN CIRCULATION >WATER MASSES    [Definition]
OCEANS >OCEAN TEMPERATURE >WATER TEMPERATURE    [Definition]
OCEANS >SALINITY/DENSITY >DENSITY    [Definition]
OCEANS >SALINITY/DENSITY >SALINITY    [Definition]


ISO Topic Category
OCEANS


Platform
FIELD SURVEYS    [Information]
FIELD INVESTIGATION    [Information]


Instrument
CTD >Conductivity, Temperature, Depth    [Information]


Quality
This study was part of a scholarship funded project. The data is held in the report with Antarctica New Zealand. The investigator may also have some data stored on disk.


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
MICHAEL WILLIAMS
Role: INVESTIGATOR
Phone: +64 4 386 0389
Fax: +64 4 386 2153
Email: m.williams at niwa.co.nz
Contact Address:
NIWA
Private Bag 14901
City: Wellington
Postal Code: 6021
Country: New Zealand


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Williams, M. 1994. Survey of Internal Waves in McMurdo Sound, Antarctica. RDRC Report.

Creation and Review Dates
DIF Creation Date: 2009-05-21
Last DIF Revision Date: 2009-06-06


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