AndreaBozzo/ceres-open-data-index huggingface dataset:
RV Investigator Voyage IN2025_V01 Underway (UWY) Data

This record describes the Underway (UWY) data collected from the Marine National Facility (MNF) RV Investigator  voyage IN2025_V01, titled"Collaborative Australian Postgraduate Sea Training Network (CAPSTAN)." The voyage took place between March 08, 2025 and March 17, 2025 (AEST), departing from Hobart and returning to Hobart.

Standard Underway data is continuously recorded, consisting of:

(1) Navigation data (NAV): Latitude, Longitude, Speed, Heading, Course Over Ground, Gyros, and Doppler Log (dual GPS instrument).

(2) Thermosalinograph (TSG): Water Salinity, Flow-Rate, Temperature, Fluorescence, pCO2 and Optode/Oxygen.

(3) Atmospheric (MET): Humidity, Wind Speed and Direction (vane and ultrasonic), Radiometer/Sea Surface Temperature, Pyranometer/Solar Radiation, Photosynthetically Active Radiation (PAR), Air Temperature, Air Pressure, Rain, Ozone and Trace Gases (port and starboard instruments).

The quality-controlled RV Investigator underway meteorological and SST data are supplied to the IMOS AODN and other global data repositories and distributors, and made available for satellite SST validation by the Australian Bureau of Meteorology (BoM).

Near real-time, unprocessed data are available via the link "Visualisation tool for Underway Data."

This dataset has been processed (quality-controlled), and archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC). Data are available at time intervals of 5 sec (NetCDF format), 5 sec, 10 sec, 1 min and 5 min (ASCII format). Note: not all variables are quality controlled; please check for existing QC flags in the datasets. Additional information regarding this dataset is contained in the Voyage Summary and/or the Data Processing Reports for this voyage.

Organization: Australian Ocean Data Network
Informing environmental management with landscape mapping

Under the Antarctic Treaty system, Australia is committed to a range of environmental protection measures. Some, such as Antarctic Specially Protected Areas (ASPAs), are supported by management plans, but these often lack scientific evidence to support robust management decisions. Without the protection of snow and ice, rocky ice-free regions in Antarctica are easily damaged and are slow to recover. We will present examples from the Vestfold Hills, East Antarctica, to show how surficial geology maps in ice-free areas can support evidence-based management of Antarctic Specially Protected Areas (ASPAs) and polar landscapes.

ASPA No. 143 Marine Plain is valued for its “outstanding fossil fauna and rare geological features” (ATCM XXXVI 2013). We used regional geological mapping and field observations to derive recommended access points to the ASPA and reduce the likelihood of damage to fossil fauna. Our results are being used to inform revision of the ASPA management plan which will be considered at the next Antarctic Treaty Consultative Meeting.

We also identified a fragile fossil polychaete reef near Deep Lake in the Vestfold Hills which is vulnerable to accidental damage from trampling. Our results show how physical environmental datasets can support informed management of scientific, wilderness, and aesthetic values.

References:

ATCM XXXIV, 2013. Measure 9. Antarctic Specially Protected Area No 143 (Marine Plain, Mule Peninsula, Vestfold Hills, Princess Elizabeth Land): Revised Management Plan

Presented at the 2024 Australian Antarctic Research Conference

Tags: Antarctic geoscience, Antarctica, Geomorphology and earth surface processes, Published_External, environmental management, geology
Organization: Australian Ocean Data Network
3D Trajectories and Positioning Data of Individuals in an Antarctic Krill Swarm: TEMPO Observations from the RV Investigator voyage IN2021_V01

This record describes 3D coordinates of individual Antarctic krill collected during the Marine National Facility (MNF) RV Investigator research voyage IN2021_V01, titled “Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory.” The voyage occurred from Hobart (TAS) to Hobart between 29 January and 24 March 2021 (AEST) as part of the 2021 TEMPO (Trends in Euphausiids off Mawson, Predators, and Oceanography) survey. The data were obtained using an array of 10 GoPro Hero-8 cameras deployed into krill swarms to study their individual behaviour in natural conditions. The primary goal was to support estimates of krill biomass for updating catch limits in CCAMLR's Division 58.4.2-East. The Swarm study aimed to replicate methods from Burns et al. (2023), examining krill behaviour at the individual level. The dataset includes two parts: TEMPO_Orientation (head and tail coordinates of 305 krill) and TEMPO_Tracks (coordinates from video frames). Data includes camera details, horizontal distances, frame references, and converted 3D coordinates.

Organization: Australian Ocean Data Network
BRUVS (TM) - Fish and Benthic survey of Townsville Midshelf Reefs 2000-09-30 to 2000-10-05

The dataset comprises 1380 individuals from 128 species of fishes, sharks, rays and sea snakes observed at around Townsville Midshelf Reefs using 19 baited remote underwater video stations (BRUVS(TM)). 

Approximately 3500 of the best images from all BRUVS (TM) projects are stored in a reference library.

Data recorded concern:
- classification of the habitat in the field of view (topography, sediments, benthos)
- the identity of fish and CAABCODES
- their time of arrival
- their behaviour (8 categories, including feeding on the bait)
- their maturity (adult or juvenile)
- their relative abundance (as MaxN = the maximum number visible at one time, or distinguishable at different times as separate individuals e.g. much larger/smaller, male/female)
- the time elapsed before MaxN and feeding occurs.

A custom interface has been developed by AIMS staff, using Microsoft Access, for reading and analysis of BRUVS(TM) tapes.

Organization: Australian Ocean Data Network
Beagle Marine Park bathymetry survey 2018 (GA0364)

This resource includes bathymetry data for Beagle Marine Park (Bass Strait) collected by Geoscience Australia (GA) and the Institute for Marine &amp; Antarctic Studies (University of Tasmania; UTAS) during the period 17 - 26 June 2018 on the TV Bluefin. The survey was undertaken as a collaborative project funded through the National Environmental Science Program Marine Biodiversity Hub, with co-investment by GA and UTAS. The purpose of the project was to build baseline information for benthic habitats in the Beagle Marine Park that will support ongoing environmental monitoring within the South-east Marine Park Network as part of the 10-year management plan (2013-2023). Data acquisition for the project was completed during three separate voyages: Phase 1 - Seabed mapping by multibeam sonar; Phase 2 - Seabed imagery acquisition by Autonomous Underwater Vehicle, and sediment sampling; Phase 3 - Survey of demersal fish communities using Baited Remote Underwater Video (BRUVs). This dataset from Phase 1 comprises 11 bathymetry grids derived from multibeam sonar data gridded at 1 m spatial resolution, covering a combined area of 366 km2. A detailed report on the survey is provided in: Barrett, N., Monk, J., Nichol, S.L., Falster, G., Carroll, A., Siwabessy, J., Deane, A., Picard, K., Dando, N., Hulls, J., Evans, H. 2019, Beagle Marine Park Post Survey Report: South-east Marine Park Network. Report to the National Environmental Science Program, Marine Biodiversity Hub.

This dataset is not to be used for navigational purposes.
This dataset is published with the permission of the CEO, Geoscience Australia.

Tags: AusSeabed, EARTH SCIENCES, HVC_144641, Published_External, bathymetry
Organization: Australian Ocean Data Network
Diagenetic organic matter in Recent sediments and environments of deposition

Organic geochemical studies of the reduced organic material in sedimentary rocks provide a valuable insight into the origin and history of the sediments. Information on the source of the organic matter (marine or non-marine), the depositional environment (oxic or anoxic), whether or not biodegradation has occurred, and the maturity of the organic matter can be obtained by studying the distribution of various organic compounds, known as biological markers, in extracts from these sediments. Selection of environments with a fairly narrow range of source material allows more direct correlations to be made between source material and specific biological markers.

Tags: Earth Sciences, GA Publication, Journal, Published_External
Organization: Australian Ocean Data Network
Quaternary Evolution, Modern Geological Processes and Potential Effects of Additional Petroleum Exploration Activity on the Van Diemen Rise, Timor Sea (East Malita Graben Area) : Release 1 of 1992

To meet the formal requirements for the collection, interpretation and analysis ofenvironmental baseline data in Australia's offshore areas in which further petroleumexploration could take place, the modern geological processes, Quaternary evolutionand environmental features of the potential release area(s) in the Van Diemen Rise(East Malita Graben, Timor Sea) which will be included in the first release of 1992are described, analysed and interpreted.

The potential release area(s) overlie part of the Van Diemen Rise in the eastern partof the Timor Sea in the vicinity of Cootamundra and Evans Shoals. Sea bottomsediments in the region are dominantly calcareous sand grade and derived from thebreakdown of skeletal material which has developed on an extensive number ofbanks and shoals which characterise this part of the continental shelf.

The sea bottom is also marked by a number of sinuous and narrow curvilinearchannel like features which along with other geomorphic elements are attributed tothe effects of subaerial exposure and weathering of the carbonate shelf sedimentwedge during Quaternary lower sea level stages, as well as marine and coastalprocesses which occurred during sea level rise and marine inundation.

The Holocene rise in sea level has resulted in inundation of a large number of wave-cut scarps, channels and flat top banks, the latter of which became the focus ofcarbonate reef growth and hence a source of much of the sand-grade carbonatesediments evident on the sea floor.

Tags: Earth Sciences, GA Publication, Published_External, Record, geology, petroleum exploration
Organization: Australian Ocean Data Network
Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 18/02/2007 to 23/02/2007 (Hobart - Dumont d'Urville)

These data were collected on the RV L'Astrolabe (platform code: FHZI) from 18/02/2007 to 23/02/2007 on a trip from Hobar 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
The late Paleoproterozoic Buddycurrawa Volcanics, South Nicholson region

The Buddycurrawa Volcanics (BV, Benmara Group) are a sequence of trachyte lavas and interleaved shallow-marine siliciclastic rocks, exposed in the Benmara region, northwestern Mount Drummond 1:250 000 map sheet, Northern Territory. Previous information, including resource potential, on the BV was limited, and stratigraphic correlation with other regional volcanic units was speculative. Our new geochronology data establish the extrusion age of the BV as late Paleoproterozoic, constrained by a maximum age of ca. 1662 Ma (SHRIMP U-Pb zircon) and a minimum age of ca 1631 Ma (in situ laser Rb-Sr on glauconite within vesicles). The BV are, therefore, temporally equivalent to numerous ash fall tuffs reported throughout regional highly prospective late Paleoproterozoic successions. The BV also host vertical siliceous pipes, representing ‘white smokers’—peripheral low-temperature equivalents of black smokers—suggestive of a regional shallow-marine hydrothermal circulatory system and potential for associated base metal mineral systems. The BV are pervasively potassically altered. Laser Rb-Sr dating on matrix secondary microcline returns ages ca. 1612–1323 Ma, reflecting timing of fluid flow responsible for at least some of the potassic alteration. These are broadly consistent with similar estimates of episodes of regional fluid flow and base metal mineralisation and/or remobilisation in the Mount Isa Province.

Citation: Carson, C.J., Kositcin, N., Farkas, J., Champion, D.C., Whelan, J., Redaa, A., Gilbert. S., Henson, P.A., Maas, R., Williams, B. and Doublier, M.P., 2020. The late Paleoproterozoic Buddycurrawa Volcanics, South Nicholson region. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.

Tags: Basins, Benmara Group, EARTH SCIENCES, EFTF, Exploring For The Future, GEOLOGY, Geochronology, Potassic Alteration, Published_External, South Nicholson Basin, Volcanics
Organization: Australian Ocean Data Network
Benthic Nutrient Recycling in Port Phillip Bay, Australia

Benthic chamber measurements of the reactants and products involved with biogenic matter remineralization (oxygen, ammonium, nitrate, nitrite, phosphate, silicate, TCO2 and alkalinity) were used to define solute exchange rates between the sediment and overlying water column of Port Phillip Bay, Australia. Measurements at various sites throughout the bay, conducted during the summers of 1994 and 1995, indicate that the variability in flux values within a site is comparable to year-to-year variability (Â±50%). Four regions of the bay were distinguished by sediment properties and the northern region was identified as having 3-30 times greater nutrient regeneration rates than the other regions. Benthic recycling accounted for 63 and 72% of the annualized N and P input, respectively, to the entire bay as determined by summing benthic, dissolved riverine, atmospheric and dissolved effluent sources. However, bay-wide sedimentary denitrification accounted for a loss of 63% of the potentially recyclable N. This fraction is higher than many other coastal regions with comparable carbon loading. Denitrification efficiency is apparently not enhanced by benthic productivity nor by bio-irrigation. The rate of bio-irrigation is negatively correlated with denitrification efficiency. Bio-irrigation was studied using radon-222 and CsCl spike injection chamber measurements. Radon fluxes from sediments in Port Phillip Bay were enhanced over the diffusive flux by 3-16 times. The modelled rate of loss of Cs from chamber water was positively correlated with radon flux enhancement results. Both methods identify regions within Port Phillip Bay that have particularly high rates of non-diffusive pore-water overlying water solute exchange.

Tags: AU-VIC, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine, resource management
Organization: Australian Ocean Data Network
Tectonic geomorphology and Holocene uplift rates of the Lae Urban Area, Papua New Guinea

Lae is Papua New Guinea’s (PNG’s) second largest city and is the home of PNG’s largest port. Here, a convergence rate of ~50 mm/yr between the South Bismarck Plate and the Australian Plate is accommodated across the Ramu-Markham Fault Zone (RMFZ). The active structures of the RMFZ bifurcate immediately west of the Lae urban area, with one trace (the Wongat South Thrust) trending southeast through Lae City and connecting to the Markham Trench within the Huon Gulf. The geomorphology of the Lae urban area relates to the interaction between riverine (and limited marine) deposition and erosion, and range-building over the Wongat South Thrust. Flights of deformed river terraces imply repeated tectonic uplift events. Terrace riser heights are typically on the order of 2.5-3.0 m, indicating causative earthquake events of greater than magnitude 7.0. Preliminary dating of fluvial and marine terrace deposits indicates a recurrence for these events in the order of 300-400 years, at an uplift rate of ~12 m/kyr. The results of the tectonic geomorphology study form part of a PNGAus partnership project, and will inform future seismic hazard and risk assessments for the region

Tags: Papua New Guinea, Published_External, Structural geology and tectonics, earthquake geology, seismic hazard
Organization: Australian Ocean Data Network
Final report for Co-operative Research Centre for Spatial Information CRC-SI Project 114: Reconciling height datums in Australia: the bathymetric component

Vertical height datums are necessary as a reference for height measurements over the Earth. However the choice of reference is dependant on the purpose for the height data. For terrestrial users (especially on the coast), heights above a Mean Sea Level (MSL) are desired, whilst marine uses that depend on under keel clearance, prefer a low water tidal datum. The result of these preferences has produced two different types of height datum in Australia. Topography heights are referenced to the
Australian Height Datum (AHD), Roelse (1975), and bathymetry heights are referenced to Chart Datum (CD) or Lowest Astronomical Tide (LAT), calculated through a tidal observation. Both are not directly compatible with satellite based data in ellipsoidal heights, which span the land/sea interface. Users of these data sets are increasingly aware of difficulties in joining these adjacent datasets, primarily a result of datum disparities.
The focus of the research in this report is to reconcile the various bathymetry datums to allow joining of bathymetry datasets. A methodology has been presented to calculate uncertainty for short span observation MSL's relative to a long term reference epoch. This will increase the number of available MSL observations around the coast, which will aid in the creation of an ellipsoidal MSL surface with
uncertainties. Despite their inclusion in the original project scope, methodologies for computing uncertainties of the Lowest Astronomical Tide (LAT) and Highest Astronomical Tide (HAT) tidal planes have not been developed. Several alternative options for high water and low water tidal planes with associated uncertainties to define the intertidal zone about MSL in Australia will be presented for consideration.

Tags: Earth Sciences, GA Publication, Published_External, Report, marine
Organization: Australian Ocean Data Network
Bynoe Harbour Habitat Mapping Survey 2016: Chlorins and porosity data for seabed sediments

This resource contains surface sediment data for Bynoe Harbour collected by Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and Department of Land Resource Management (Northern Territory Government) during the period from 2-29 May 2016 on the RV Solander (survey SOL6432/GA4452). This project was made possible through offset funds provided by INPEX-led Ichthys LNG Project to Northern Territory Government Department of Land Resource Management, and co-investment from Geoscience Australia and Australian Institute of Marine Science. The intent of this four year (2014-2018) program is to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline data that enable the creation of thematic habitat maps that underpin marine resource management decisions. The specific objectives of the survey were to: 
1. Obtain high resolution geophysical (bathymetry) data for outer Darwin Harbour, including Shoal Bay; 
2. Characterise substrates (acoustic backscatter properties, grainsize, sediment chemistry) for outer Darwin Harbour, including Shoal Bay; and 
3. Collect tidal data for the survey area. Data acquired during the survey included: multibeam sonar bathymetry and acoustic backscatter; physical samples of seabed sediments, underwater photography and video of grab sample locations and oceanographic information including tidal data and sound velocity profiles.

This dataset comprises total chlorin concentrations, chlorin indices and porosity measured on seabed sediments. 

A detailed account of the survey is provided in Siwabessy, P.J.W., Smit, N., Atkinson, I., Dando, N., Harries, S., Howard, F.J.F., Li, J., Nicholas W.A., Picard, K., Radke, L.C., Tran, M., Williams, D. and Whiteway, T., 2016. Bynoe Harbour Marine Survey 2017: GA4452/SOL6432 Post-survey report. Record 2017/04. Geoscience Australia, Canberra. 

Thanks to the crew of the RV Solander for help with sample collection, Matt Carey, Craig Wintle and Andrew Hislop from the Observatories and Science Support at Geoscience Australia for technical support and Jodie Smith for reviewing the data. This dataset is published with the permission of the CEO, Geoscience Australia

Tags: Earth Sciences, Published_External, baseline information, continental shelf, geochemistry, marine, seabed
Organization: Australian Ocean Data Network