This point feature class contains the locations of AWAC deployments across the state of Western Australia. Historic Tide and Wave data is held by DOT from Wyndham to Esperance. Tide; AWAC; Wave; Pressure and Current data currently available at the Department of Transport, Fremantle. This data can be ordered at the following link:http://www.transport.wa.gov.au/imarine/historical-tide-and-wave-data.aspWave data supplied is obtained by post-processing raw data from Datawell Wave rider. buoys. Wave statistics are produced by spectral analysis of raw elevations. The statistics supplied are the significant wave height (Hs) in metres, Peak Period (Tp) in seconds, Mean Period (T1) in seconds. These are supplied for the total wave as well as the separated sea and swell components. The sea:swell split is 8s.Directional data additionally has the direction at Tp of the sea and swell components. Directions are given in degrees from magnetic north. The directions as are calculated by the wave buoy at the Tp computed by the post-processing software.

Spatial representation of Coastline Movements data for the Department of Transport (DoT), WA. The Polyline feature class contains line work that represents the position of the vegetation and generalised water lines for WA held by DoT. The dataset also includes lines that mark the extent of sand drift areas along the WA coast. This dataset has been captured using available imagery and photogrammetric techniques. These coastline movement lines are used by the Department of Transport, WA, to produce coastline movement drawings. These drawings and their associated data are used by coastal engineers to estimate horizontal setback datum used in coastal planning. The dataset is currently not available for download. The vegetation lines for the years 1875 - 2009 may be viewed via the web map at the following link: https://mapsengine.google.com/09372590152434720789-17447516222354999649-4/mapview/?authuser=0 The full dataset may be requested from the Department of Transport, 1 Essex Street, Fremantle WA 6160.

Archived water level readings recorded at Gladstone Auckland Point using an automatic tide gauge.

Over time there have been a number of tide gauges deployed at Macquarie Island Station. The data download files contain further information about the gauges, but some of the information has been summarised here. Note that this metadata record only describes tide gauge data from 1993 to 2007. More recent data are described elsewhere. Macquarie Island used Aquatrak and Druck tide gauges during this period. Documentation from the older metadata record: Documentation dated 2001-06-12 The Macquarie Island Tide Gauge System 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. 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. 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. 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. 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 The batteries in the housing are kept charged by the solar panels but are isolated via power diodes, one in each housing. Either or both of the housing batteries or only the solar panel battery may be removed without interruption to data logging. The voltage of either housing battery may be found by interrogation of the appropriate data logger. Tide Gauge Bore Holes. Both gauges obtain access to the ocean via an inclined hole about 12 metres long inclined at approximately 34 and 39 degrees to the horizontal. Both holes are lined with a plastic pipe which is normally not removable. In the Aquatrack sensor hole a 50mm ABS pressure pipe runs down inside the liner and is fitted with a brass strainer and orifice at the lower end. This strainer protrudes into the ocean somewhat clear of the sea floor (see figure). Inside the 50mm pipe runs a 15mm diameter plastic pipe. The bottom end of this is fitted with a 600mm length of red brass tubing and stops about 100mm from the orifice at the bottom of the pipe. The 15mm pipe is held central in the 50mm pipe by three armed spiders placed about every metre down the pipe. The top end of both pipes is secured by a flange with two O rings and stainless steel screws. On top of the 15mm pipe is mounted the Aquatrack acoustic sensor the 15mm pipe acting as a waveguide for sound pulses from the sensor (see figure ). The Aquatrack sensor measures the distance of the water surface from a reference point on the sensor. About one metre down the wave guide is a small hole. This has two functions. One is to act as vent to allow water to rise and fall in the wave guide and the other is to provide an acoustic reflection at a known distance down the wave guide. This allows compensation for velocity of sound changes due to temperature changes. The Aquatrak wave guide

DOT wave data is collected using Datawell wave rider buoys. Older wave data was collected using non-directional wave rider buoys. As technology advanced and directional measuring capabilities were developed in wave buoys, the DOT wave buoy network was gradually upgraded to directional wave rider buoys. Older datasets do not have directional information whereas newer datasets have directional information.Historic Tide and Wave data is held by DOT from Wyndham to Esperance. Tide; AWAC; Wave; Pressure and Current data currently available at the Department of Transport, Fremantle. This data can be ordered at the following link:http://www.transport.wa.gov.au/imarine/historical-tide-and-wave-data.asp

DOT wave data is collected using Datawell wave rider buoys. Older wave data was collected using non-directional wave rider buoys. As technology advanced and directional measuring capabilities were developed in wave buoys, the DOT wave buoy network was gradually upgraded to directional wave rider buoys. Older datasets do not have directional information whereas newer datasets have directional information.

Measured and derived wave parameters from data collected by a wave monitoring buoy anchored at Wide Bay. For more information, please refer to www.qld.gov.au/waves. Field names: Hs - Significant wave height, an average of the highest third of the waves in a record (26.6 minute recording period). Hmax - The maximum wave height in the record. Tz - The zero upcrossing wave period. Tp - The peak energy wave period. Peak Direction - Direction (related to true north) from which the peak period waves are coming from. SST - Sea Surface Temperature as measured by a sensor embedded in the hull of the buoy.

A statistical assessment of wave, tide, and river power was carried out using a database of 721 Australian clastic coastal depositional environments to test whether their geomorphology could be predicted from numerical values. The geomorphic classification of each environment (wave- and tide-dominated deltas, wave- and tide-dominated estuaries, lagoons, strand plains, and tidal flats) was established independently from remotely sensed imagery. To our knowledge, such a systematic numerical analysis has not been previously attempted for any region on earth.

Tide Stations: Water level observations are in centimetres (unless otherwise stated) and are typically in intervals of 60, 15, 5 or 2 minutes (specified in the header). All measurements are recorded to Australian Western Standard Time and to the local vertical datum as specified in the header (if known). Tide station locations are to GDA2020, however some locations are an approximation only, particularly the historical tide stations and DoT does not provide any warranty as to the accuracy of the information nor as to its reliability.