Naval Postgraduate School
Dudley Knox Library
NPS Dudley Knox Library
View Item 
  •   Calhoun Home
  • Faculty and Researchers
  • Faculty and Researchers' Publications
  • View Item
  •   Calhoun Home
  • Faculty and Researchers
  • Faculty and Researchers' Publications
  • View Item
  • How to search in Calhoun
  • My Accounts
  • Ask a Librarian
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of CalhounCollectionsThis Collection

My Account

LoginRegister

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

Modeling Studies of the Leeuwin Current off Western and Southern Australia

Thumbnail
Download
IconBatteen_Modeling_Leeuwin_1998-11.pdf (1.625Mb)
Download Record
Download to EndNote/RefMan (RIS)
Download to BibTex
Author
Batteen, Mary L.
Butler, Christopher L.
Date
1998-11
Metadata
Show full item record
Abstract
The Leeuwin Current strengthens considerably from February to May each year, following the slackening of southerly coastal winds; strong eddies develop. A high-resolution, multilevel, primitive equation ocean model is used to examine this eddy development in an idealized way, by considering the development of flow from rest when temperatures are initially given the observed longshore gradients. The system is allowed to geostrophically adjust in the absence of longshore winds and of any surface heat flux. Two types of experiments are conducted. The first type uses the Indian Ocean climatological temperature gradient forcing (case 1 and 2), while the second type repeats the first experiment with the added contribution of the North West Shelf (NWS) temperature profile (cases 3 and 4). To investigate the additional effects of coastline irregularities, cases 1 and 3 use an ideal coastline, while cases 2 and 4 use an irregular (realistic) coastline. In all cases, maximum surface velocities occur at Cape Leeuwin, where the Leeuwin Current changes direction, and off Southern Australia. Maximum undercurrent velocities occur off Western Australia. In case 1, Cape Leeuwin and the Western Australian coast are the preferred locations for the development of warm, anticyclonic eddies, which are generated due to a mixed instability mechanism. In case 2, the warm, anticyclonic eddies occur in the vicinity of coastal promontories and at Cape Leeuwin. While advection of warm water is present along the entire coast in case 1, the irregular coastline geometry limits the extent of warm water in case 2. The added contribution from the NWS water in cases 3 and 4 augments the onshore geostrophic inflow to produce a model Leeuwin Current and undercurrent that are more vigorous and unstable than in the previous cases. In case 3, the NWS water adds strong horizontal shear to the coastal equatorial region of the domain and vertical shear to the inshore current. It also advects warmer water along the entire coast. In case 4, the addition of both the NWS water and the irregular coastline results in the establishment of a stronger surface current and undercurrent than in the previous cases; however, the irregular coastline limits the extent of the advection of the NWS warmer water along the Australian coast.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/43391
Collections
  • Faculty and Researchers' Publications

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Modeling studies of the Leeuwin Current off Western and Southern Australia 

    Butler, Christopher L. (Monterey, California. Naval Postgraduate School, 1994-12);
    A high-resolution, multi-level, primitive equation ocean model is used to examine the response of an eastern boundary oceanic regime to thermal and wind forcing. The focus of this study is the anomalous Leeuwin Current ...
  • Thumbnail

    Wind-forced modeling studies of currents, meanders, eddies, and filaments of the Canary Current System 

    Buch, Eric J. (Monterey, California. Naval Postgraduate School, 1997-06);
    A high-resolution, multi-level, primitive equation ocean model is used to examine the response of an eastern boundary oceanic regime to both wind forcing and irregular coastline geometry. The focus of this study is the ...
  • Thumbnail

    A modeling study of the coastal eastern boundary current system off Iberia and Morocco 

    Batteen, Mary L.; Martinez, Johnny R.; Bryan, Daniel W.; Buch, Eric J. (2000-06-15);
    To investigate the northern Canary Current system (NCCS), results from four numerical experiments of increasing complexity are examined. Experiment 1, which uses seasonal wind forcing only, shows that as expected, wind ...
NPS Dudley Knox LibraryDUDLEY KNOX LIBRARY
Feedback

411 Dyer Rd. Bldg. 339
Monterey, CA 93943
circdesk@nps.edu
(831) 656-2947
DSN 756-2947

    Federal Depository Library      


Start Your Research

Research Guides
Academic Writing
Ask a Librarian
Copyright at NPS
Graduate Writing Center
How to Cite
Library Liaisons
Research Tools
Thesis Processing Office

Find & Download

Databases List
Articles, Books & More
NPS Theses
NPS Faculty Publications: Calhoun
Journal Titles
Course Reserves

Use the Library

My Accounts
Request Article or Book
Borrow, Renew, Return
Tech Help
Remote Access
Workshops & Tours

For Faculty & Researchers
For International Students
For Alumni

Print, Copy, Scan, Fax
Rooms & Study Spaces
Floor Map
Computers & Software
Adapters, Lockers & More

Collections

NPS Archive: Calhoun
Restricted Resources
Special Collections & Archives
Federal Depository
Homeland Security Digital Library

About

Hours
Library Staff
About Us
Special Exhibits
Policies
Our Affiliates
Visit Us

NPS-Licensed Resources—Terms & Conditions
Copyright Notice

Naval Postgraduate School

Naval Postgraduate School
1 University Circle, Monterey, CA 93943
Driving Directions | Campus Map

This is an official U.S. Navy Website |  Please read our Privacy Policy Notice  |  FOIA |  Section 508 |  No FEAR Act |  Whistleblower Protection |  Copyright and Accessibility |  Contact Webmaster

Export search results

The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

A logged-in user can export up to 15000 items. If you're not logged in, you can export no more than 500 items.

To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.