AndreaBozzo/ceres-open-data-index huggingface dataset:
RV Investigator Voyage IN2026_V01 End of Voyage (EOV) Archive

This record describes the End of Voyage (EOV) data archive from the Marine National Facility (MNF) RV Investigator voyage IN2026_V01, titled "Cook Ice Ecosystems and Sediments (COOKIES)." The voyage took place between January 02, 2026 and February 25, 2026 (AEST), departing from Hobart and returning to Hobart.

For further information please refer to the voyage documentation links.

Instruments used and data collected include:
Regular measurements:
Lowered ADCP (LADCP), Acoustic Doppler Current Profiler (ADCP; 38, 75, 150 KHz ), Greenhouse Gas Analysers (Picarro), Cloud Condensation Nuclei counter (CCN), Condensation Particle Counters (CPC), Disdrometer, Radon sensor, Mobility particle size spectrometer (MPSS), Black Carbon sensor (Aethalometer), CTD, Hydrochemistry, Fisheries Echosounder (EK80), Multibeam Echosounder (EM712, EM124, EM2040), Sub-bottom Profiler (SBP29), GPS Positioning System, Doppler Velocity Log, Thermosalinographs (TSG), Fluorometer, Oxygen Optode, Infrared Sea Surface Temperature Autonomous Radiometer (ISAR), pCO2, Gravimeter, Ozone Sensor, Nephelometer, Atmospheric Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Starboard and Portside Radiometers, Air Sampler, Ultra Short BaseLine Underwater Positioning System (USBL), Weather Radar.

Voyage-specific measurements:
Micro Rain Radar (MRR), Core Argo floats, Biogeochemical (BGC) Argo floats, NIWA sled (mini-Sherman), Environmental DNA (eDNA), Multi-corer, Kasten corer, Giant Piston Corer (GPC), Trace Metals, Deep Towed Camera (DTC), Video, Wildlife Observations (seabirds, cetaceans and seals).

The archive for the IN2026_V01 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (https://data.csiro.au/), providing access to voyage participants and processors of the data collected on the voyage.

All voyage documentation is available electronically to MNF support via the local network. Applications to access voyage documentation by non-CSIRO participants can be made via data-requests-hf@csiro.au All processed data from this voyage are made publicly available through the MNF Data Trawler (in the related links)

Organization: Australian Ocean Data Network
Prydz Channel Fan and the History of Extreme Ice Advances in Prydz Bay

During the late Neogene, the Lambert Glacier-Amery Ice Shelf drainage system flowed across Prydz Bay in an ice stream that reached the shelf edge and built a trough mouth fan on the upper continental slope. The adjacent banks saw mostly subglacial till deposition beneath slower-moving ice. The fan consists mostly  of debris flow deposits derived from the melting out of subglacial debris at the grounding line at the continental shelf edge. Thick debris flow intervals are separated by thin mudstone horizons deposited when the ice had retreated from the shelf edge. Age control in ODP Site 1167 indicates that the bulk of the trough mouth fan was deposited prior to the Brunhes-Matuyama Boundary (780 ka) with as few as 3 debris flow intervals deposited since then. This stratigraphy indicates that extreme advances of the Lambert Glacier-Amery Ice Shelf system ceased during the mid Pleistocene. Possible causes for this change are progressive over-deepening of the inner shelf, a reduction in maximum ice volumes in the interior of the East Antarctic Ice Sheet caused by temperature change and a change in the interaction of Milanckovich cycles and the response time of the ice sheet.

Tags: AQ, Earth Sciences, External Publication, Monograph Contribution, Published_External, continental margins, marine, palaeoclimatology, seismic sections, underwater drilling
Organization: Australian Ocean Data Network
Capricorn and northern Tasman Basins: Structure and Depositional Systems

The Bureau of Mineral Resources completed a major marine multi-channel seismic reflection survey (MCS) off southeast Queensland in December 1989. The research cruise, using RV 'Rig Seismic: was designed to investigate the structure, stratigraphy and petroleum resource potential of offshore basins along this sector of the Australian continental margin. About half of the 2900 km of seismic data acquired were recorded over the Capricorn Basin and margins of the northern Tasman Basin. The survey included seismic ties to the only deep offshore wells in the region, Aquarius-1 and Capricorn-lA, located in the northern Capricorn Basin. It was the first MCS survey shot in the region since 1974. Sonobuoy refraction, gravity, magnetic and bathymetric data were also collected. The Capricorn Basin evolved in the Late Cretaceous as a failed rift arm at the northern end of the Tasman rift system. From the seismic data, basin development in the Capricorn Basin is seen as typically comprising 0.5 ? 1.0 s twt of syn-rift continental/Irestricted marine deposits (Late Cretaceous-early Palaeogene) overlain by about 1.5 s twt of Eocene-Recent, mainly marine, post-rift sediments.

Tags: AU-QLD, AU-TAS, AU-VIC, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, structural geology
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2023_V07 ADCP Data

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2023_V07, titled: "SWOT-ACC: smaller scales of the Antarctic Circumpolar Current in a meander south of Tasmania." The voyage took place between November 15, 2023 and December 20, 2023 (AEST), departing from Hobart and returning to Hobart.

The OS75 was not turned on due to the degraded performance, the WH75 was installed on the starboard drop keel to make up for the faulty OS75 and worked well for the duration of the voyage. The OS150 operated normally.

ADCP data were collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed using the Common Ocean Data Access System (CODAS). Documentation for these systems can be found in (Hummon, 2009-2021).

The RDI Ocean Surveyor OS150kHz was run in narrowband mode (nb) and the RDI Ocean Surveyor WH75kHz ADCP was run in broadband mode (bb).

Internal triggering was used.

Both port and starboard drop keels are located approximately 6m below the water line, additionally both port and starboard keels were extended by 1.2m for the entire duration of the voyage, subsequently the transducers were located approximately 7.2m below the water line.

For more information please see the Processing Report (linked below).

This dataset was processed (quality-controlled), and then archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Organization: Australian Ocean Data Network
BMR Research Newsletter 5

Titles in this newsletter:
Platinum group minerals from a layer in the Munni Munni Complex of the Pilbara Block
Review of Baas Becking Geobiological Laboratory
BMR enhances database activity
The Exmouth Plateau revisited
Gold medal awarded to BMR
Welcome: Dick Henley
Palaeogeographic map project
Corrigendum: 'Red Book' New Australian distributor
Southwest Pacific research cruise
Murray Basin subsurface stratigraphic database
Towards the integration of image processing and computer graphics in BMR
Woodlark Triple junction: Sonar imagery from a spreading back-arc basin
Marine heatflow: A new field for Australian marine geoscience
Stable isotopic evidence for high rates of organic carbon accumulation in the Late Proterozoic
The notion and motion of the Australian lithosphere
Computer modelling for gold tax inquiry
French expeditions to the southern Kerguelen Plateau
Global Geosciences Transect Project
Seismic symposium
Reflections of an Australian's visit to China: Rifts and resources
World Ni resources
1986 BMR Research Symposium, 13-14 November - program
Hydrocarbon fluid inclusions and timing of oil migration

Tags: Earth Sciences, GA Publication, Published_External, Research Newsletter
Organization: Australian Ocean Data Network
CSIRO Multibeam Backscatter Mapping of the Continental Shelf Backscatter 75m 2013 (20130147C)

A multi-beam sonar (MBS) has been used to map Australia's continental margin seabed from the marine national facility vessel Southern Surveyor on opportunistic transit and research voyages since 2004 with 0.35 M km2 mapped. The MBS data are used to infer key ecological features based on bathymetry (e.g. seamounts, canyons, terraces, banks and deep reefs) and backscatter data for ecological hard (consolidated, e.g. rock for attachment of fauna) and soft (unconsolidated, e.g. mud for burrowing fauna) substrate. Seabed consolidation inference is consistent with a seabed scattering model. To consistently infer ecological significant hard and soft substrate from the backscatter data requires minimisation of errors due to changing absorption (̃2 dB) with temperature and depth, calibration drift, changes in pulse length and estimates of area insonified due to seabed slope (&lt;8 dB). Area insonified corrections were required for both across and along-ship slopes. Highest corrections were needed for along-ship slopes in canyon regions and large incidence angles ( &gt;60°). A data collection and processing framework is described that works towards a national backscatter mapping program for environmental seabed mapping. Data collected and automated processing for depth, sound absorption and area insonified at level 2 of a possible 5 level data processing hierarchy is available. The final data was gridded at 75m resolution.

Not to be used for navigational purposes

Tags: AusSeabed, Australia-wide geoscience data, Backscatter, Bass Strait (Great Australian Bight), Bathymetry, Coral Sea, EARTH SCIENCES, Echo Multiplier (EM300), Great Australian Bight, Gulf of Carpentaria, Gulf of Guinea, Indian Ocean, Java Sea (East Indian Archipelago), Marine, Multibeam, Oceans, Offshore Mapping, Pacific Ocean, Published_External, Resourcing Australia's Prosperity, South Pacific Ocean, Tasman Sea, Torres Strait
Organization: Australian Ocean Data Network
Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 19/02/2003 to 24/02/2003 (Hobart - Dumont d'Urville)

These data were collected on the RV L'Astrolabe (platform code: FHZI) from 19/02/2003 to 24/02/2003 on a trip from Hobart to Dumont d'Urville.

Maximum photochemical efficiency of photosystem II (PSII), also called maximum quantum yield of PSII (Fv/Fm), has become one of the most widely utilized fluorescence parameters in phytoplankton research. It represents the potential photochemical efficiency, which is the probability that the light energy captured by the photosynthetic apparatus is being utilized as photochemistry. Fv/Fm has been shown to have an instant response to variations in physical and chemical properties and is interpreted as a diagnostic of the overall health or competence of phytoplankton. Together with the absorption cross section area of PSII and chlorophyll concentration, it can be used to measure primary production (Cheah et al. 2011, Deep Sea Research).

Seawater from 3 m depth was supplied continuously from the ship’s clean seawater line. FRR fluorescence yields were measured continuously at 1 minute intervals in dark-adapted state (! 15 minutes dark-adaptation) using a flash sequence consisting of a series of 100 subsaturation flashlets (1.1 μs flash duration and 2.8 μs interflash period) and a series of 20 relaxation flashlets (1.1 μs flash duration and 51.6 μs interflash period).

Tags: Continents | Antarctica, Countries | Australia, Fast Repetition Rate Fluorometer (FRRF), Global/Oceans | Southern Ocean, Instrument's photomultiplier electronic sensitivity (1-256), Latitude, Longitude, Maximum quantum yield (Fv/Fm), Minimum fluorescence in the light chamber of the FRRF (also used as a proxy for biomass), Oceans | Ocean Temperature | Sea Surface Temperature, Oceans | Salinity/density | Salinity, Photosynthesis, connectivity between PSII reaction centres under actinic light, functional absorption cross section of PSII (measure of the proportion of light harvested for photoc, maximum fluorescence in the light chamber of the FRRF, maximum quantum yield of photosystem II ( (FmL - FoL) / FmL), primary production, time constant of electron transport from PSII to PSI, variable fluorescence (FmL - FoL)
Organization: Australian Ocean Data Network
National Gravity Compilation 2019 includes airborne DGIR 1VD grid

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This National Gravity Compilation 2019 includes airborne DGIR 1VD grid is produced from the 2019 Australian National Gravity Grids B series. These gravity data were acquired under the project No. 202008. The grid has a cell size of 0.00417 degrees (approximately 435m). The data are derived from ground observations stored in the Australian National Gravity Database (ANGD) as at September 2019, supplemented by offshore data sourced from v28.1 of the Global Gravity grid developed using data from the Scripps Institution of Oceanography, the National Oceanic and Atmospheric Administration (NOAA), and National Geospatial-Intelligence Agency (NGA) at Scripps Institution of Oceanography, University of California San Diego. Airborne gravity and gravity gradiometry data were also included to provide better resolution to areas where ground gravity data was not of a suitable quality. Out of the approximately 1.8 million gravity observations, nearly 1.4 million gravity stations in the ANGD together with Airborne Gravity surveys totaling 345,000 line km and 106,000 line km of Airborne Gravity Gradiometry were used to generate this grid. The ground and airborne gravity data used in this grid has been acquired by the Commonwealth, State and Territory Governments, the mining and exploration industry, universities and research organisations from the 1940's to the present day. Station spacing for ground observations varies from approximately 11 km down to less than 1 km, with major parts of the continent having station spacing between 2.5 and 7 km. Airborne surveys have a line spacing ranging from 0.5 km to 2.5 km. The grid shows the first vertical derivative of the de-trended global isostatic residual (DGIR) anomalies over Australia and its continental margins. The DGIR grid was obtained by subtracting 3 quantities (i.e., the near-field isostatic correction, the far-field isostatic correction, and a first order trend correction) from Complete Bouguer Anomaly data (CBA) of the 2019 Australian National Gravity Grids B series. A first vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the DGIR grid of the 2019 Australian National Gravity Grids to produce this grid.

Tags: 1vd, Australia, B series, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, None, Published_External, airborne data, de-trended, first vertical derivative, geophysical survey, geophysics, grav, gravity, grid, ground digital data, isostatic, marine data gravity gradiometry, national, raster, residual, satellite data, survey 202008
Organization: Australian Ocean Data Network
Water Properties of Ashmore Reef, North-west Shelf, Australia

Ashmore Reef is a tropical marine reserve positioned at the confluence of Indian Ocean waters and the Indonesian Through Flow, has three vegetated cays all with fresh water lenses and two lagoons, separated by a calcareous algal rise.  Both lagoons have two entrances on the northern side of the reef.  The reef is subject to a 4.75 m semi-diurnal tide and on a spring tide ~7.5 km3 of water washes over the reef.  The regional, lagoonal and well water qualities in and around Ashmore Reef have been observed from 1991 with a more intensive program since 1999 to ascertain it's chemistry and possible relationships with biodiversity.   Sea surface temperatures of the surrounding oceanic water seasonally range from 25.48Â°C to 30.2Â°C and salinity from 34.51 to 34.75.  Satellite derived lagoonal temperatures range from 25.4Â°C - 34.5 Â°C with an average of 29.4 Â°C, salinity ranges from 39.6 to 31.2.  

The fresh water lens on West Island has up to 150 000 ltr/yr pumped from the well. Well water temperature varies between 28Â°C and 29Â°C, and salinity has ranged from  0.03  to 3.94 with a pH of 7.64 dissolved oxygen percentage ranged from 27% to 51 %. 

This reef is within the tropical monsoonal belt, with thunderstorms occurring on ~85 days/yr and where evaporation potential is ~1820 mm, almost twice that of annual rainfall of ~950 mm.

This article can be found in The Beagle, pp. 9-12. The Beagle is a print only journal.

Tags: Earth Sciences, External Publication, Published_External, hydrogeology, marine
Organization: Australian Ocean Data Network
Coral Spawn and Bathymetric Slicks in Synthetic Aperture Radar (SAR) Data from the Timor Sea, Northwest Australia

Annular to crescent-shaped low back scatter SAR slicks over carbonate reefs and shoals in the Timor Sea with slick `feathering', and within the coral spawning period for the region, are interpreted to be caused by a coral spawn event. In contrast, ocean current data and detailed swath bathymetry of the sea floor to the southeast of the coral spawn slicks suggest that elongate repeating slicks in this area are related to current flow over submarine channels. Assessment of these slicks in association with ancillary data, such as bathymetry, current velocities, weather and timing of scene capture allow a more robust interpretation of their origins.  Through differentiating coral spawn and bathymetric slicks from oil and other biological slicks in shallow carbonate systems, such as the Timor Sea, petroleum and environmental assessments for these areas can be improved.

Tags: Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine
Organization: Australian Ocean Data Network
Gifford Marine Park Bathymetry - 30m Resolution Grid

Australia has established a network of 58 marine parks within Commonwealth waters covering a total of 3.3 million square kilometres, or 40 per cent of our exclusive economic zone (excluding Australian Antarctic Territory). These parks span a range of settings, from near coastal and shelf habitats to abyssal plains. Parks Australia manages the park network through management plans that came into effect for all parks on 1 July 2018. Geoscience Australia is contributing to their management by collating and interpreting existing environmental data, and through the collection of new marine data. “Eco-narrative” documents are being developed for those parks, where sufficient information is available, delivering collations and interpretations of seafloor geomorphology, oceanography and ecology. Many of these interpretations rely on bathymetric grids and their derived products, including those in this data release. 
Bathymetry grids 
The bathymetry of the marine parks was created by compiling and processing Geoscience Australia’s bathymetry data holding gridded at the optimum resolution depending of the vessel’s sonar system. 
The bathymetry of the park is illustrated by a panchromatic geotiff image, developed by combining the bathymetric data with a hillshade image. 
 Morphological Surfaces 
Geoscience Australia has developed a new marine seafloor classification scheme, which uses the two-part seafloor mapping morphology approach of Dove et al (2016). This new scheme is semi-hierarchical and the first step divides the slope of the seafloor into three Morphological Surface categories (Plain, &lt;2°; Slope, 2-10°; Escarpment, &gt;10°). 
Dove, D., Bradwell, T., Carter, G., Cotterill, C., Gafeira, J., Green, S., Krabbendam, M., Mellet, C., Stevenson, A., Stewart, H., Westhead, K., Scott, G., Guinan, J., Judge, M. Monteys, X., Elvenes, S., Baeten, N., Dolan, M., Thorsnes, T., Bjarnadóttir, L., Ottesen, D. (2016). Seabed geomorphology: a twopart classification system. British Geological Survey, Open Report OR/16/001. 13 pages. 
This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, HVC_144641, Marine Biodiversity Hub, National Environmental Science Program, Published_External, bathymetry, bathymetry grid, marine, marine data
Organization: Australian Ocean Data Network
GA310 South West Margin 2D MSS, magnetic line data

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. These line dataset from the GA310 South West Margin 2D MSS were acquired for Geoscience Australia in 2008/2009 as part of the Australian Government's Offshore Energy Security Program. This survey acquired a range of pre-competitive geological and geophysical data that included seismic reflection, gravity, magnetic and swath bathymetry measurements, as well as seafloor dredge samples. A total of 26,000 line-kilometres of magnetic and gravity data were acquired during this survey.

Tags: EARTH SCIENCES, GA310, GEOPHYSICS, Magnetism and Palaeomagnetism, Published_External, SW margin, South West Margin, line, magnetic, marine, shipborne, vector
Organization: Australian Ocean Data Network
The Lower Carboniferous geology of the Rouchel district, New South Wales

The Rouchel district in eastern New South Wales is about 100 km northwest of Newcastle and occupies an area of about 1200 km- between the towns of Parkville, Scone, Aberdeen, and Muswellbrook in the west, and the Mount Royal Range in the east (Fig. 1). Carboniferous sedimentary and volcanic rocks in the Rouchel district are part of the New England Belt of the Palaeozoic Tasman Geosyncline (Fig. 2). During the early Palaeozoic the Tasman Geosyncline, an orthogeosyncline as defined by Kay (1951) contained the Lachlan and New England Belts; the Lachlan Belt ceased to be part of the geosyncline after the Middle Devonian Tabberabberan Orogeny, but geosynclinal conditions persisted in the New England Belt until late Palaeozoic time. Throughout the Late Devonian and Early Carboniferous the Rouchel district occupied a subsiding shelf, the Tamworth Trough, adjacent to and east of the Tabberabberan orogen. Conditions of sedimentation on the shelf were, in general, initially marine but later became progressively non-marine from west to east; a sequence 4000 to 4500 m thick was deposited between Late Devonian or Early Carboniferous and the medial Early Carboniferous (middle Visean).

Tags: AU-NSW, Bulletin, Earth Sciences, GA Publication, Published_External, geology
Organization: Australian Ocean Data Network