This dataset contains temperature data obtained from XBTs (expendable bathythermographs) deployed by vessels during different cruises in the Tasman Sea. Expendable Bathythermographs (XBTs) have been used for many years by oceanographers to measure the temperature of the upper ocean. These instruments are simple devices which are designed to be deployed from moving vessels, enabling broad scale coverage of the world's oceans.

Ozone depletion over Antarctica increases UVB irradiances reaching the Earth's surface in the region. Marine microbes, that support the Antarctic food web and play an integral part in carbon cycling, are damaged by UVB. This research determines Antarctic UV climate, biological responses to UV from the molecular to community level, and combines these elements to predict UV-induced changes in Antarctic marine microbiology. A season of field work was undertaken over November and December 1994 based from Davis Station with the intention of making field measurements of ultraviolet radiation in the fast ice environment, as well as some of the lakes in the Vestfold Hills. Instrumentation The instrument for the measurements was a Macam spectral radiometer, owned by Geography and Environmental Studies, University of Tasmania. Field personnel were Dr Kelvin Michael (IASOS) and Mr Michael Wall (Honours student, Geography and Environmental Studies, UTas). The radiometer was equipped with a 25-metre quartz light pipe, with a cosine sensor attachment at the end. To make a measurement of ultraviolet irradiance, the sensor would be oriented so that its sensing surface was horizontal, and it would collect light which was then transmitted along the light pipe to the radiometer - a suitcase-sized unit which ran on battery power in the field. The radiometer was encased in a wooden box lined with polystyrene foam to provide protection from the elements and heat insulation. The radiometer was controlled via a laptop PC and the data were stored on the hard disk of the PC. Measurements Measurements of the attenuation of ultraviolet and visible radiation as a function of wavelength in water were made at the ice edge and lake measurement sites. At the ice edge, the light pipe was spooled over a wheel and lowered to preset depths (typically 1,2,4,8,16 and 32 m below the water surface). On a lake, a 25-cm augur hole was drilled, and the light pipe was lowered by hand to various depths, the exact depths chosen depended on the depth of the lake. Where the lake ice conditions permitted, a frame was lowered through the hole and used to lever the light pipe against the underside of the ice and a measurement of the ultraviolet and visible transmission of the sea ice was collected. In all cases, measurements of the ultraviolet and visible surface irradiance were collected before and/or after the sub-surface measurements. When the sky conditions were sufficiently clear, the direct and diffuse components of the ultraviolet and visible irradiance values were estimated, via the use of a shading apparatus. This would ensure that the radiometer would measure the diffuse component of the radiation field, allowing the direct component to be estimated by subtraction of the diffuse from the global (unshaded) measurement. On some occasions, the upwelling irradiance from the snow or ice surface was also measured, providing information on the spectral albedo of the surface. At each measurement, spectral irradiance values were generally collected for two spectral ranges: UV-B (280 - 400 nm, in 1-nm steps) and visible (400 - 700 nm, in 5-nm steps). In some cases, the wavelength boundaries were different - eg 280 - 350 nm for the UV-B, or 550 - 680 nm in the visible (corresponding to channel 1 of the NOAA AVHRR sensor). The data were stored by the PC as raw data files. The names of these files are automatically defined from the time on the logging PC as 'hhmmss.dti'. Note that the PC was operating on Australian Eastern Summer Time, 4 hours ahead of DLT. These data files were later read into Excel spreadsheets for manipulation. See the linked report for further information. The measurements are all in units of watts per metre squared per nanometre (Wm^-2 nm_-1) The heading UV-B refers to the fact that the data are collected in the ultraviolet part of the spectrum (280 - 400 nm) The heading AVHRR refers to the fact that the data are collected in the visible part of the spectrum

The Bureau of Meteorology provides the Australian and international maritime communities with weather forecasts, warnings and observations for coastal waters areas and high seas around Australia. Generally most of these services are provided routinely throughout the day, while marine weather warnings may be issued at any time when the need becomes apparent. Because of the complex nature of the sea, the Bureau of Meteorology uses advanced computer models to predict the physical characteristics of the ocean. These computer forecasts are used by meteorologists in the preparation of marine forecasts and warnings. The forecasts include wind, weather, sea and swell and are intended to describe the average conditions over specified areas. Marine forecasts have been enhanced by the inclusion of ocean currents and sea-surface temperature forecasts through the BLUElink ocean forecasting initiative. Marine weather services include: * Marine warnings * Marine forecasts * Forecasts of winds * Sea and swell forecasts * Marine weather observations * Ocean services * General weather services * Definitions and terminology * Ways to get weather information This Metadata record links to the Marine Weather Services Home Page and the Latest Coastal Weather Observations for each State. Also included in this record are Weather Warnings Information, Australian High Seas Areas, Weather Analysis Archives, Satellite Products and Archive and Realtime Data and Formats.

High resolution, three-dimensional numerical modelling of the tidally driven dynamics around Scott Reef. The purpose of the modelling was to capture the fine scale (~100 m) flow structures resulting from the tide interacting with the complex reef topography. Hourly data of approximately 20 million model grid points were created. 3 tidal cycles during spring-tide conditions were modelled with model output including currents (u, v, w), water level, temperature and density at model grid points. Vertical extent is from surface to 3000 metres

This database describes the basic variables for the Southern Surveyor cruise of May 2006 and 2007 of a warm core eddies off Western Australia. Position locations, temperature, salinity variables along with some pigment data are provided. This data base is designed for participants of that cruise to use as a share tool.

This report describes the results of the third and final expedition to the Kimberley to document the marine flora and fauna of the area. The expedition took place in November-December 1996 with the assistance of a grant from the National Estates Grant Program. Twenty-four stations were examined. Detailed notes are presented on the station locations and habitat types present. At each station algae, seagrasses, molluscs, fish, crustacea and corals were collected and notes were made on the few mangroves observed in this area. 3.Five areas of particular significance were found. These were: - Station 5, Hedley Island - coral pools, fish, algae and general diversity. - Station 11, Low Water, East Montelivet - extensive coral/coralline reef flat with high diversity coral cover. Large pools, with spectacular coral cover and fish. - Station 13, East side, Cassini Island - geomorphology and coral cover. Station 21, Wild Cat Reefs, eastern reef, west side - high algal diversity. - Station 22, The Breakwater, Montgomery Reef - special reef. This report provides an extensive section outlining the coastal geomorphology of the central Kimberley. There have been no published records of the marine algae which occur in the Kimberley. This report provides details of ca. seventy species collected during the expedition. Coralline algae are poorly known and species in this group are currently being worked on taxonomically. One hundred and forty four species of scleractinian corals, 292 species of molluscs, 89 species of non-caridean decapod crustaceans and 80 species of caridean shrimps, 228 species of fish and 19 barnacles were recorded. Potentially new species were found in several groups. The taxonomy of many of the groups collected is poorly known. Material was obtained for specialists in particular groups in Australia and overseas. The material has been sorted and sent to the specialists for examination and determination of species. This work is complex and time consuming, so it has not been possible to provide identifications for this report. However, the material is currently being worked up and will be presented in the scientific literature when it has been completed.

Oceanic conditions are a critical factor in the earth's climate system. They directly influence fisheries and most aquaculture endeavours, while knowledge of them is essential for such diverse applications as coastal construction, maritime safety, marine pollution response and sustainable management of the marine environment. Oceanographic Services comprise some of the most recent additions to the suite of services provided by the Bureau of Meteorology. Since taking responsibility for operating the national centre for tidal expertise (the National Tidal Centre or NTC) in 2004, operational oceanographic services in the Bureau have grown rapidly. With the introduction of the routine provision of several new products from the BLUElink ocean prediction system, Oceanographic Services now encompass a substantial set of informative products which support the safer and more intelligent use of the ocean by users who undertake a wide range of activities on or near Australia's great oceanic environments. BLUElink is a multi-million dollar initiative by the Bureau, the CSIRO and the Royal Australian Navy to provide the nation with a major step forward in our ongoing understanding of the behaviour of the vast coastal and ocean areas in our neighbourhood, and for our ability to operate in those environments more safely, more effectively and for a more sustainable future. The Bureau has been providing tidal services, including predictions, tsunami services, ocean surface wave predictions, and a range of products concerning ocean temperature including sea surface temperature (SST) analyses and temperature-depth analyses, for some time. The new products from the BLUElink system now provide both analyses and daily forecasts out to 7 days, for a range of surface oceanographic variables, including SST, surface currents, surface salinity, and sea level elevation anomaly. These products support improvement to regional climate forecasts, ship routing to achieve greater fuel savings, improvement to maritime rescue and safety capabilities, and the identification of changes in coastal water temperatures, salinity and currents that directly influence reefs, aquaculture and all forms of marine life. Oceanographic Services encompasses a wide range of National and International Projects associated with the Bureau of Meteorology. These include the Australian Baseline Sea Level Monitoring Project, BLUElink Ocean Forecasting Australia, the Integrated Marine Observing System (IMOS), the Joint Australian Tsunami Warning Centre (JATWC), and the South Pacific Sea Level and Climate Monitoring Project. To learn more about these projects and view their online data, click on the links below.

To document the marine flora and fauna of the Kimberley region, and to make the information available to the public and scientific community. Survey focused on islands and reefs between Montgomery Island and Cassini Island. NOTE: survey boundary was not defined in report

The Red Rock (RRK) HF ocean radar site (32.031 S, 115.746 E) is one of two HF ocean radars covering the waters off Coffs Harbour, New South Wales. The other HF ocean radar station is at North Nambucca. The RRK HF ocean radar is a WERA phased array system with a 16-element receive array. This radar operates at a frequency of 13.912 MHz, with a bandwidth of 100 KHz, a maximum range of 100 Km and a range resolution of 1.5 Km. Azimuthally the radar covers a sweep 60 deg either side of a bore sight direction of 285 deg true east of north (approximately west by north-west). Within the HF radar coverage area surface current radials are measured. Data are also collected from which wind directions and significant wave height can be calculated.