Data

Fine scale surface currents in Cid Harbour, Whitsunday Islands, Great Barrier Reef

Australian Ocean Data Network
Australian Institute of Marine Science (AIMS)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://apps.aims.gov.au/metadata/view/fbda6937-8114-418f-8389-e9a5f1b7510d&rft.title=Fine scale surface currents in Cid Harbour, Whitsunday Islands, Great Barrier Reef&rft.identifier=https://apps.aims.gov.au/metadata/view/fbda6937-8114-418f-8389-e9a5f1b7510d&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=Aerial photographs, releases of numbered paper drogues and fluorescein dye were used to study fine-scale surface currents in Cid Harbour, Whitsunday Islands, during August 1975.Initially, existing aerial photographs were used to identify gyres formed by the tidal current behind rocky promontories or small islands, eddies, current directions and mixing patterns within the harbour (shear zones, frontal systems, convergences and divergences). Additional colour aerial photographs were taken at specified intervals from a height of 800m and the apparent rotation of the gyres in the photographs was compared to the rotational speed of the current measured from the position of drogues released from small boats within the gyres or eddy currents.Sets of 10-20 drogues were released from different locations within the harbour and at various times throughout the tidal cycle, to provide quantitative information of rates of flow and direction of water flow. Information on tidal cycles used to determine the timing of deployment of drogues was taken from predicted tides for the outer harbour for the city of Mackay. Each drogue in a set was deployed individually, with a specified distance between the release of each drogue. Each set of drogues was released over a period of 3-6 minutes. Corrections were later made to approximate simultaneous release. Observations of wind speed and direction were made at half hourly intervals during the release of drogues. Most drogues were released when the wind speed was Fluorescein dye was released from small boats and the dispersion of the dye photographed from an aircraft, to obtain finer scale measurements of current distribution. This study was initiated to obtain descriptive data on the fine-scale distribution of surface water currents in Cid Harbour, to complement studies of patterns in the distribution of zooplankton in the same area.Maintenance and Update Frequency: notPlanned&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2024&rft.coverage=westlimit=148.894493; southlimit=-20.297272; eastlimit=148.9398; northlimit=-20.244349&rft.coverage=westlimit=148.894493; southlimit=-20.297272; eastlimit=148.9398; northlimit=-20.244349&rft_rights= http://creativecommons.org/licenses/by-nc/3.0/au/&rft_rights=http://i.creativecommons.org/l/by-nc/3.0/au/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License&rft_rights=http://creativecommons.org/international/au/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=Use Limitation: All AIMS data, products and services are provided as is and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights=Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: Australian Institute of Marine Science (AIMS). (2011). Fine scale surface currents in Cid Harbour, Whitsunday Islands, Great Barrier Reef. https://apps.aims.gov.au/metadata/view/fbda6937-8114-418f-8389-e9a5f1b7510d, accessed[date-of-access].&rft_rights=Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License http://creativecommons.org/licenses/by-nc/3.0/au&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Non-Commercial Licence view details
CC-BY-NC

http://creativecommons.org/licenses/by-nc/3.0/au/

Creative Commons Attribution-NonCommercial 3.0 Australia License
http://creativecommons.org/licenses/by-nc/3.0/au

http://i.creativecommons.org/l/by-nc/3.0/au/88x31.png

WWW:LINK-1.0-http--related

License Graphic

Creative Commons Attribution-NonCommercial 3.0 Australia License

http://creativecommons.org/international/au/

WWW:LINK-1.0-http--related

WWW:LINK-1.0-http--related

License Text

Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2011). Fine scale surface currents in Cid Harbour, Whitsunday Islands, Great Barrier Reef. https://apps.aims.gov.au/metadata/view/fbda6937-8114-418f-8389-e9a5f1b7510d, accessed[date-of-access]".

Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.

Access:

Open

Brief description

Aerial photographs, releases of numbered paper drogues and fluorescein dye were used to study fine-scale surface currents in Cid Harbour, Whitsunday Islands, during August 1975.Initially, existing aerial photographs were used to identify gyres formed by the tidal current behind rocky promontories or small islands, eddies, current directions and mixing patterns within the harbour (shear zones, frontal systems, convergences and divergences). Additional colour aerial photographs were taken at specified intervals from a height of 800m and the apparent rotation of the gyres in the photographs was compared to the rotational speed of the current measured from the position of drogues released from small boats within the gyres or eddy currents.Sets of 10-20 drogues were released from different locations within the harbour and at various times throughout the tidal cycle, to provide quantitative information of rates of flow and direction of water flow. Information on tidal cycles used to determine the timing of deployment of drogues was taken from predicted tides for the outer harbour for the city of Mackay. Each drogue in a set was deployed individually, with a specified distance between the release of each drogue. Each set of drogues was released over a period of 3-6 minutes. Corrections were later made to approximate simultaneous release. Observations of wind speed and direction were made at half hourly intervals during the release of drogues. Most drogues were released when the wind speed was Fluorescein dye was released from small boats and the dispersion of the dye photographed from an aircraft, to obtain finer scale measurements of current distribution. This study was initiated to obtain descriptive data on the fine-scale distribution of surface water currents in Cid Harbour, to complement studies of patterns in the distribution of zooplankton in the same area.

Lineage

Maintenance and Update Frequency: notPlanned

Notes

Credit
Hamner, William M (Bill), Dr (Principal Investigator)

Modified: 10 08 2024

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related People

148.9398,-20.24435 148.9398,-20.29727 148.89449,-20.29727 148.89449,-20.24435 148.9398,-20.24435

148.9171465,-20.2708105

text: westlimit=148.894493; southlimit=-20.297272; eastlimit=148.9398; northlimit=-20.244349

Subjects
oceans |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information
Fine-scale surface currents in the Whitsunday Islands, Queensland, Australia: effect of tide and topography: Hamner WM and Hauri IR (1977) Fine-scale surface currents in the Whitsunday Islands, Queensland, Australia: effect of tide and topography. Australian Journal of Marine and Freshwater Research 28: 333-359.

local : articleId=1837

Identifiers
  • global : fbda6937-8114-418f-8389-e9a5f1b7510d