Oceanographic data was collected to observe the circulation around the Dampier Archipelago. Measurements were made March-May 2001 to coincide with a coral spawning event. OCEANS Coastal Processes Tidal Height OCEANS Coastal Processes Sea Surface Height OCEANS Coastal Processes Longshore Currents OCEANS Ocean Circulation Advection OCEANS Ocean Circulation Ocean Currents OCEANS Ocean Circulation Thermohaline Circulation OCEANS Ocean Circulation Wind-driven Circulation OCEANS Ocean Temperature Water Temperature OCEANS Ocean Temperature Thermocline OCEANS Ocean Temperature Sea Surface Temperature OCEANS Ocean Pressure Sea Level Pressure OCEANS Salinity/density Conductivity

Four Aanderaa Water Level Recorders (tide gauges) were deployed during the Ningaloo Reef Circulation Study.Deployment details:Site 2: WLR 880 (-21.822067, 114.073783) Southern entrance to southern lagoonDeployed 26/11/97: Recovered 11/12/97. Depth at deployment: 2m.Site 4: WLR 599 (-21.81195, 114.084267) Inshore of gap in reefsDeployed 28/11/97: Recovered 11/12/97. Depth at deployment: 2m.Site 5: WLR 869 (-21.8076, 114.082133) Front of northern reefDeployed 28/11/97: Recovered 11/12/97. Depth at deployment: 9m.Site 6: WLR 799 (-21.8137, 114.069717) Front of southern reefDeployed 26/11/97: Recovered 11/12/97. Depth at deployment: 9m.Sensor: Pressure sensorSampling regime: 41 second averaging every 5 minutes (for all instruments). These data are a component of the project 'Ningaloo Reef Circulation Study, Western Australia (1997)'.

A WoodsHole Instrument Systems SeaPac 2100 Directional Wave Gauge was deployed on the back of the reef top on the southern reef (Site 10).Deployment details:Site 10: S/N 51035: (-21.816183, 114.07535)Deployed 29/11/97: Recovered 11/12/97. Depth 1.5mSensors: High resolution pressure and current sensorsSampling regime: 20 minute every hour starting on the hour. 0.25 second sampling interval, no averaging. These data are a component of the project 'Ningaloo Reef Circulation Study, Western Australia (1997)'.

An observational instrument array consisting of three Acoustic Doppler Current Profilers, six S4 Vector Averaging Current Meters (four of which were capable of wave measurements) one SeaPac 2100 Wave Gauge and four Water Level Recorders was deployed in a section of Ningaloo Reef for a period of fourteen days in November/December 1997. In addition a Waverider buoy was deployed well offshore and approximately 2.6 nautical miles north of the study region. The study site was chosen to fulfil two criteria: 1. the reef system had to be typical of the other reefs in the area: a series of reefs running approximately parallel to the coast separated by deep, narrow channels, and separated from the coast by wide lagoons open at both the north and south ends. 2. the area had to be sufficiently small to allow adequate coverage by the observational instrument array. The study location consisted of two reefs, each approximately 1km long, separated by a 100m wide channel. A shallow, 500m wide lagoon separated the reefs from the beach. Both reef faces had slopes of approximately 1 to 25 and rose from a depth of 10m to between 0m and 1m on the reef top. Instrument locations were chosen to observe all physically significant, short-term oceanographic processes that occur in, and influence the study region. Bathymetry data was also recorded using a downward looking Acoustic Doppler Current Meter mounted on the transom of a small boat and a DGPS positioning system. Meteorological data was obtained from the AIMS automatic weather station at the Milyering Visitor Centre, 30km south of the study region. The Ningaloo Reef study was undertaken to obtain a comprehensive dataset on the physical oceanographic processes that influence the circulation and flushing of the reefs in the Ningaloo region. Data obtained will be utilised to verify theoretical and numerical models of these oceanographic processes, such that these models can be generically applied to the Ningaloo Reef region as a whole. Instruments were deployed as follows: (a) An S4 current meter with an internal water level sensor was located in the northern entrance to the northern lagoon (Site 1) to measure flow into and out of the lagoon from the north. (b) An S4 current meter and Water Level Recorder (tide gauge) were located in the southern entrance to the southern lagoon (Site 2) to measure flow into and out of the lagoon from the south. (c) An S4 Current meter/Wave gauge was deployed in the channel between the two reefs (Site 3) to observe flow through this entrance. (d) A Water Level Recorder (tide gauge) was located within the lagoon, but in line with the channel between the two reefs (Site 4), to provide water level data within the lagoon relative to the water levels observed at both the northern and southern entrances. (e) Two Water Level Recorders (tide gauges) and two Acoustic Doppler Current Profilers were located In the deeper water immediately seaward of both the Northern (Site 5) and Southern (Site 6) reefs, to observe the water level and current structure in front of the reefs, and give some indication of the flow of water towards the reef front. (f) Current meter/Wave gauges were deployed near the reef break (Site 7) and slightly landward of the reef break (Site 8) of the northern reef and near the reef break (Site 9) and slightly landward of the reef break (Site 10) of the southern reef, to observe flow and wave height over the reef top. (g) A Waverider buoy was deployed offshore (Site 11) to observe swell incident on the study area.

In July 1985 the Division of Oceanography embarked on a wave observation program with the deployment of two "Waverider" buoys in the Southern Ocean near Cape Sorell on the west coast of Tasmania. Data were collected from moored Waverider Buoys deployed for various periods in Tasmanian coastal waters off Cape Grim, Cape Sorell (100m), Cape Sorell (50m) and Storm Bay. These observations are used to assess both typical and extreme sea states at these sites and for estimating spatial, seasonal and interannual variations in wave conditions in the Tasmanian region. The program concluded in December 1993 when the Storm Bay buoy ceased operation. There are two distinct datasets: a) Derived statistical data is available on-line for the seven locations mentioned in "Wave Climate Measurements in the Southern Ocean." b) Sample burst data for each of (possibly) nine locations. NOTES: All instruments used, and a copy of the data obtained during this program were sent to the Bureau of Meteorology. The Marine Observation Unit at the Bureau (marine_obs@bom.gov.au) may be able to provide additional information. The data files in this collection are not in a Datacente supported format and no assurances are given as to the accuracy of data, or of the locations implied by the data file names. The CSIRO Waverider program has not been continued.

The first oceanographic instruments were deployed in situ at Scott Reef and Rowley Shoals from 1993 to 2003. The measurements began at Scott Reef during July 1993. The full array of instruments was deployed at Scott Reef and Rowley Shoals in August 1994 and remained in place until the end of 1998. Gaps in the individual records reflect losses of data due to instrument failures in situ or incorrect instrument operation. A tide gauge which also recorded near-surface water temperatures was maintained at Scott Reef near-continuously from August 1993 to February 1999. Instruments were also deployed at Mermaid Reef where two years worth of useful sea level and near-surface water temperature data were recorded. In the NW Cape region, productivity and biomass measurements were largely made during the summers of 1997–1998, 1998–1999 and in April 2002 The study made repeated measurements of primary and bacterial production, with associated measurements of hydrographic structure, nutrient stocks, plankton biomass and community structure.

Four InterOcean S4 Current Meter/Wave Gauges were deployed during the Ningaloo Reef Circulation StudySite 3: Deployment 1 (S/N 626): -21.8099, 114.0811 (In gap between reefs, on 3m tower)Deployed 29/11/97: Recovered 5/12/97. Depth: approximately 7m below surfaceSite 3: Deployment 2 (S/N 012): -21.8099, 114.0811 (In gap between reefs, on 3m tower)Deployed 5/12/97: Recovered 11/12/97. Depth: approximately 7m below surfaceSite 7: Deployment 1 (S/N 058): -21.808767, 114.083283 (Reef top of northern reef)Deployed 28/11/97: Recovered 4/12/97. Depth: 1.5mSite 7: Deployment 2 (S/N 058): -21.808767, 114.083283 (Reef top of northern reef)Deployed 4/12/97: Recovered 11/12/97. Depth: 1.5mSite 8: Deployment 1 (S/N 615): -21.809, 114.084433 (Back of the reef top of the northern reef)Deployed 28/11/97: Recovered 4/12/97. Depth: 2mSite 8: Deployment 2 (S/N 615): -21.809, 114.084433 (Back of the reef top of the northern reef)Deployed 5/12/97: Recovered 11/12/97. Depth: 2mSite 9: Deployment 1 (S/N 012): -21.8152833, 114.07315 (Reef top of the southern reef)Deployed 29/11/97: Recovered 5/12/97. Depth: 2mSite 9: Deployment 2 (S/N 626): -21.8152833, 114.07315 (Reef top of the southern reef)Deployed 5/12/97: Recovered 11/12/97. Depth: 2mSensor: High resolution pressure sensorSampling regime: 20 minute bursts every hour starting on the hour. 0.5 second sampling interval, no averaging. These data are a component of the project 'Ningaloo Reef Circulation Study, Western Australia (1997)'.

Two InterOcean S4 Current Meters were deployed during the Ningaloo Reef Circulation Study.Deployment details:Site 1: S/N 630: -21.808883, 114.0872 (Northern entrance to northern lagoon)Deployed 28/11/97: Recovered 11/12/97. Depth: 3mSite 2: S/N 837: -21.822067, 114.073783 (Southern entrance to southern lagoon)Deployed 26/11/97: Recovered 11/12/97. Depth: 2mSensors: No pressure sensorSampling regime: 1 minute every 5 minutes. 0.5 second sampling interval, average all samples. These data are a component of the project 'Ningaloo Reef Circulation Study, Western Australia (1997)'.

Two RD Instruments Acoustic Doppler Current Profilers (ADCP) and a Sontek Acoustic Doppler Profiler (ADP) were deployed at the front of the northern reef and the southern reef during the Ningaloo Reef Circulation Study.Deployment details:Site 5 (Deployment 1): ADCP S/N 0412: -21.8076, 114.082133 (Front of northern reef)Deployed 28/11/97: Recovered 4/12/97. Depth: 9mSensors: Pressure sensorSite 5 (Deployment 2): ADP S/N C18: -21.8076, 114.082133 (Front of northern reef)Deployed 4/12/97: Recovered 11/12/97. Depth: 9mSensors: No pressure sensorSite 6: ADCP S/N 064: -21.8137, 114.069717 (Front of southern Reef)Deployed 26/11/97: Recovered 11/12/97. Depth: 9mSensors: No pressure sensorSampling regime: 20 minute bursts every hour starting on the hour. 0.5 second sampling interval, average every minute during burst. These data are a component of the project 'Ningaloo Reef Circulation Study, Western Australia (1997)'.

An array of oceanographic instruments was deployed to coincide with the first summer spring high tide inundation of the salt flats adjacent to the Norman River in November 1985. The instruments were deployed at two sites. Site A was located in the Norman River, where two Interocean Model S4 current meters were suspended in a bottom mounted frame 0.5m and 1.3m above the bottom. A second mooring was deployed, to which an Aanderaa current meter and an Aanderaa water level recorder were attached 1m below the surface. All meters logged data at five minute intervals and each mooring also included an Analite optical fibre nephelometer linked to an Aanderaa data logger, which logged data every 5 minutes.Site P was located in a narrow tidal creek, which drains into the Norman River and has a watershed comprised of only salt flats. An Aanderaa current meter was mounted on the bottom at this site.At site A, water samples were collected from 1m above the bottom and 1m below the surface using 5 litre Niskin bottles every 4 hours over two complete tidal cycles (14-17 November). During this time samples were also collected along the creek in which site P was located using 2 litre glass bottles. Near bottom and near surface water samples were also collected from sites ranging from 10km seaward of the mouth of the Norman River to 50km upstream of the river mouth before (13th November) and after (17th November) the tidal inundation. Water samples were filtered through preweighed 0.4µm Nucleopore polycarbonate membrane filters and stored frozen until analysis for dissolved orthphosphate, nitrate, nitrite and silicate. Separate samples were passed through 25mm diameter GF/F glass fibre filters, which were frozen until analysis for chlorophyll a.The Aanderaa current meters also recorded temperature and conductivity. In addition temperature, salinity and suspended solids were measured with a CTD probe, which included an optical fibre nephelometer. Vertical profiles were measured along the Norman River on the 13th and 17th of November; at hourly intervals for 48 hours at site A; and every 4 hours along the creek from site P. This research was undertaken to measure, for the first time, the outwelling of salt and nutrients from salt flats to a river estuary.