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Southern Great Barrier Reef physical oceanography cruises (SGBR Project 1989-1990)

Created 12/03/2025

Updated 12/03/2025

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A series of three oceanographic cruises were made to the southern Great Barrier Reef between 1989 and 1990. The cruise dates were:SGBR1: 23/8/1989 to 2/9/1989SGBR2: 15/10/1989 to 29/10/1989SGBR3: 19/2/1990 to 28/2/1990The instruments deployed during these cruises were:1. An array of tide gauges at Heron Island, Karamea Bank, Lady Elliot Island, Middle Island, North Reef, Perforated (Peak) Island Saumarez Reef and Gannett Cay.2. An array of current meters at Lady Elliot Island, North Reef, Saumarez Reef and Karamea Bank. 3. A weather station on Wistari Reef4. Drogues5. CTD and XBT profiles along transects and at moorings.6. Horizontal profiles The purpose of the study is to investigate mesoscale flow dynamics by observing the current, sea level and frontal structures of the region and to relate the changes observed to the physical forcings at the surface and horizontal boundaries. Over a period of 3 years cold water upwelling and entrainment features have been observed in AVHRR thermal imagery in the Capricorn channel during spring-time (September to December). Cool, saline water which exists on the narrow shelf south of the Capricorn channel apparently is upwelled or advected seaward just north of Heron Island and becomes entrained in the EAC. A mushroom jet-like feature has also been observed emerging from the coast between Cape Clinton and Bustard head. These features tend to be associated with relaxation or reversal of the prevailing SE trades and with weakening or reversal of the southward flow of the Eastern Australian Current (EAC).

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Title Southern Great Barrier Reef physical oceanography cruises (SGBR Project 1989-1990)
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/f8c45c76-b16d-4c3f-b5b2-9eba8ab45eee
Contact Point
CSIRO Oceans & Atmosphere
reception@aims.gov.au
Reference Period 20/11/2017
Geospatial Coverage {"type": "Polygon", "coordinates": [[[150.828333, -24.211667], [153.653333, -24.211667], [153.653333, -21.808333], [150.828333, -21.808333], [150.828333, -24.211667]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Southern Great Barrier Reef physical oceanography cruises (SGBR Project 1989-1990)". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/southern-great-barrier-reef-physical-oceanography-cruises-sgbr-project-1989-19901

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No duplicate datasets found.