Tide Gauge Records, Macquarie Island
Tides are recorded at Macquarie Island using two sensors, one an acoustic height measuring system and the other a pressure measuring system. The raw records are stored at AADC.\n The records are processed by The National Tidal Centre to produce tidal records, predictions and residuals.\n \n Document...
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| Format: | Dataset |
| Language: | unknown |
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data.gov.au
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| Online Access: | https://researchdata.edu.au/tide-gauge-records-macquarie-island/1938969 http://data.gov.au/dataset/1d7091da-3e3a-4543-b448-520dc9b49807 |
| Summary: | Tides are recorded at Macquarie Island using two sensors, one an acoustic height measuring system and the other a pressure measuring system. The raw records are stored at AADC.\n The records are processed by The National Tidal Centre to produce tidal records, predictions and residuals.\n \n Documentation dated 2001-06-12\n The Macquarie Island Tide Gauge System\n \n The Macquarie Island Tide Gauge was first commissioned in November 1993. Since then every year attempts have been made to improve the performance of the system.\n The next improvement involves the installation of radio modems to effect a network link to the tide gauge dataloggers. Other improvements planned are include using the wave guide temperatures to correct the water heights for variations in the velocity of sound in air due to temperature gradients in the waveguide. \n The system consists of two separate sensors contained in separate housings on a rock shelf on the northern side of Garden Cove. One of the sensors is an Aquatrack acoustic type and the other is a Druck pressure transducer. Both housings contain a Platypus Engineering data logger and a battery. The housings consist each of an Admiralty Bronze ring bolted down to a concrete plinth and a glass fibre reinforced cover held down by a single central bolt and nut. \n Primary power for both installations comes from a solar panel array mounted on the northern side of the rock ridge behind the rock shelf. The solar panels are attached to an aluminium frame which is bolted to a galvanized steel frame cemented into holes in the rock face. The bolts are made of nylon with nylon washers so that the aluminium frame is not in contact with the galvanized frame.\n Mounted below the panels is a sealed plastic box with a hinged door. A multicore data cable runs from this box to the tide gauge housings. This cable is run inside a length of plastic conduit along with the power cable. The conduit is concealed in the vegetation and at the lower level is cemented into slots cut into the rock\n The ... |
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