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Project details
| Title: | Whale Survey |
| Id: | 2539 |
| Investigator(s): | Joshua Reinke
Griffith University [details] |
| Description: | |
| Years: | 2015 |
List of surveys that this project was on.
Use [details] link to view survey details (map, reports, metadata etc) including links to download data.
| Survey | Investigator | Description |
|---|---|---|
| IN2015_V02 [details] |
B. Sloyan (CSIRO O&A) | Investigator Voyage IN2015_V02 Title: Sustained monitoring of the East Australian Current: Mass, heat and freshwater transports. Scientific objectives The East Australian Current (EAC) is a complex and highly energetic western boundary system in the south-western Pacific off eastern Australia. It provides both the western boundary of the South Pacific gyre and the linking element between the Pacific and Indian Ocean gyres. This voyage will deploy an array of full-depth current meter and property (CTD) moorings from the continental slope to the abyssal waters off Brisbane (27o S). At this location the EAC, north of the high eddy variability, the EAC approaches its maximum strength and its flow is relatively uniform and coherent. The aim of this observing system is to capture the mean and time-varying flow of the EAC. This is a component of IMOS, and will provide an intensive reference set of measurements of the EAC flow over sustained period for monitoring EAC transport, improved understanding of relationship of EAC and the South Pacific gyre and impact of the coastal marine ecosystem, and validation and interpretation of the current system in numerous climate and ocean models. The mooring array is located on the existing long-term XBT transects, satellite altimetry and glider tracks. The EAC deep mooring array will be complemented by a Queensland- IMOS operated inshore mooring array on the continental shelf region. Voyage objectives This voyage will redeploy an array of six full-depth current meter and property (temperature, salinity and pressure) moorings from the continental slope to the abyssal waters off Brisbane (26o S). The observing system is designed to capture the mean and time-varying flow of the EAC. In order to resolve interannual and decadal signals we aim to maintain a multi-year deployment of the array. The main aim of the voyage will be to deploy an array of (6) full-depth current meter/CTD moorings extending from the continental slope to the abyssal waters off Brisbane. The following specific objectives will be performed: List of tasks 1. Carry out swath mapping from the abyssal plain to the base of the continental slope 2. Deploy each of the moorings at appropriate locations, including position triangulation of each mooring 3. Complete CTD/rosette stations at each mooring, with LADCP 4. Complete a number of Ship ADCP sections along the mooring line 5. Complete deep CTD and RBR sensor testing at a number of CTD stations 6. Complete XBT and CTD side-by-side comparisons at CTD stations |