Brief description
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.Lineage
Statement: Two HOBO pressure data loggers (U20L-04) were installed in a steel stilling well, fixed to a pontoon pile at the Seaport Marina. HOBOware Pro software has been used to calculate water levels from separately recorded air pressure and water temp, assuming fresh water density. Data logging was interupted when the stilling well was lost during June 2016 flood, and re-deployed after recovery 6 December 2016. Water levels from Dec 2016 - Feb 2018 are referenced to AHD. See 'Seaport metadata dec16_feb18.pdf' [attached to this record] for additional details.Notes
PurposeTo to monitor changes in estuarine equilibrium as the system reacts to silt removal by raking.
Data time period: 2014-06-27 to 2018-02-27
text: westlimit=147.05; southlimit=-41.50; eastlimit=147.25; northlimit=-41.300000000000004
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(DATA ACCESS 1 - raw supplied data pre-July 2016 (flood) (.xlsx worksheets))
(DATA ACCESS 2 - from Dec 2016-Feb 2018 (.csv))
(SUPPLEMENTARY INFO - additional logger metadata (.pdf))
(RELATED DATA - Tamar sea level data March-August 2018)
- global : cf40574e-79b0-4f92-9038-8e5a9c4cb294