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coastal structure

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    Contains observations of sea level at Port Arthur, Tasmania during the period June 1999 to September 2002.

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    Contains observations of sea level at Port Arthur, Tasmania during the period 1840 to 1842. A sea level benchmark was struck on a small cliff on the Isle of the Dead, near Port Arthur, Tasmania by T.J. Lempriere and Captain Clark Ross. Lempriere had previously constructed a tide gauge at Port Arthur where he made observations of the times and heights at approximately high and low water from mid-1837 to at least the end of 1842. No detailed information about the construction of the tidal gauge appears to have survived and was probably not self recording. Data includes the date, time and sea level.

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    Two OneTemp HOBO pressure data loggers were installed at the Seaport Marina in central Launceston in June 2014 by Dr Ian Kidd, measuring water depth at 1-hr intervals as well as water temperature. Depth is calculated from temperature, total pressure, and barometric pressure, based on fresh water density. The height of the gauge relative to AHD was measured 23 March 2018 by Launceston City Council surveyor Leigh Cornwell, and a correction applied to the data to give water level in metres AHD. The gauge was installed for the purpose of Dr Kidd's PhD research into sediment transport processes in the upper Tamar, and remains open with data collected monthly by Karen Palmer (IMAS honours student). Both projects were supervised by Dr Andrew Fischer.