IMOS - Animal Tracking Facility - Satellite Relay Tagging Program - Near real-time CTD profile data

• Other Authors: AODN Data Manager (distributor), Data Officer (distributor), Department of Biological Sciences, Macquarie University (hasAssociationWith), Harcourt, Rob (hasPrincipalInvestigator), Integrated Marine Observing System (IMOS) (resourceProvider)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; WATER TEMPERATURE; EARTH SCIENCE; OCEAN TEMPERATURE; CONDUCTIVITY; SALINITY/DENSITY; Oceans | Marine Biology | Marine Mammals; Oceans | Marine Biology | Marine Birds; Animal Tagging Sub-Facility; Integrated Marine Observing System (IMOS); Satellite Tag; CTD Satellite Relay Data Logger; Agency | SMRU | Sea Mammal Research Unit; Tags and Tracking Devices; Global / Oceans | Southern Ocean; Global / Oceans | Indian Ocean; Global / Oceans | Pacific Ocean; Marine Features (Australia) | Great Australian Bight; SA/WA; Regional Seas | Tasman Sea; Marine Features (Australia) | Bass Strait; TAS/VIC; Countries | Australia; Countries | New Zealand; States; Territories (Australia) | Western Australia; Territories (Australia) | South Australia; Territories (Australia) | Victoria; Territories (Australia) | New South Wales; Territories (Australia) | Tasmania; land-sea mammals; Temperature of the water body; Practical salinity of the water body; Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it; Latitude north; Longitude east; water temperature sensor; CTD; Indian; New Zealand; Pacific; Southern Ocean; Weddell; Elephant Seal; Southern Elephant Seal; Weddell Seals
• Online Access: https://researchdata.edu.au/imos-animal-tracking-profile-data/955090

Maintenance and Update Frequency: asNeeded Statement: The Animal Tracking Facility make all satellite logger data available in near real-time, with no quality control applied to the data before release. Data available in near real-time is a subset of the full dataset collected by the satellite loggers. Satellite Relay Tag data has been supplied to IMOS by participants, via the St Andrews University Sea Mammal Research Unit. Tags used on species: Australian Fur Seal, Australian Sea Lion, New Zealand Fur Seal and Southern Elephant Seal - CTD Satellite Relay Data Loggers (SRDL). Collect conductivity, temperature and depth information. On some Australian Sea Lions - CTD/Fluorometer Satellite Relay Data Loggers (SRDL). Collects conductivity, temperature, fluorescence profiles and depth information. Weddell Seals - Satellite Relay Data Loggers (SRDL). Collect temperature, speed and depth information. CTD- SRDLs The CTD–Satellite Relay Data Loggers (CTD-SRDLs) are built by the Sea Mammal Research Unit (SMRU, University of St. Andrews, UK), incorporating CTD sensors developed by Valeport Ltd (Devon, UK). The sensor head consists of a pressure transducer, a platinum resistance thermometer, and an inductive cell for measuring conductivity. The temperature and conductivity sensors have a precision (repeatability) of 0.005°C and 0.005 mS/cm, respectively. Before being taken into the field, devices are calibrated in the laboratory by Valeport. Some of the CTD-SRDLs (about half) were also tested at sea against a ship-based CTD before the deployment. CTD-SRDLs record hydrographic profiles during the ascent of seals, retaining only the deepest dive in each six-hour time interval, and transmitting profiles in a compressed form (between 10 and 25 data points per profile, depending on the tag program) through the Advanced Research and Global Observation Satellite (ARGOS) system. The accuracy of ARGOS geo-positioning is typically better than ±5 km, because seals never stay at the surface more than a few minutes. New methods are ...