AndreaBozzo/ceres-open-data-index huggingface dataset:
Seasonal Changes in Major Ions, Nutrients and Chlorophyll a at two Sites in the Swan River Estuary, Western Australia

Seasonal variations in major ions, nutrients and chlorophyll a were examined at two sites in the upper reaches of the Swan River estuary, Western Australia. Intra-annual variations between the variables were strongly influenced by seasonal riverine discharge, though major ions behaved highly conservatively across a wide range of salinity. Reduced discharge following winter produced strong density stratification that coincided with upstream salt wedge propagation and produced distinct physico-chemical identities of surface and bottom waters. Anoxia of bottom waters associated with the salt wedge region induced increased concentrations of ammonium and phosphate, especially at the deeper of the two sites. Locally variable groundwater flow may have also been important in transporting sediment porewater nutrients into the water column. The seasonality of riverine discharge produced large intra-annual variations in temperature (13-29Â°C) and salinity (3-30). Transient increases in turbidity occurred when the salt wedge coincided with the position of sampling locations. The subsequent flocculation process likely contributed to further oxygen consumption and nutrient regeneration from the bottom sediments, while simultaneously depositing nutrient-rich flocs with low molar N:P ratios (3-8) to the sediment surface. Nutrient ratios and absolute nutrient concentrations suggest that nitrogen is the nutrient most likely to limit phytoplankton growth over most of the year.

Tags: AU-WA, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, geochemistry, marine, sedimentology
Organization: Australian Ocean Data Network
North-east Gippsland Basin and Southern New South Wales Margin : BMR Marine Survey 68 : Explanatory Notes to Accompany Release of Non-seismic Data

The purpose of this report is to summarise the processing techniques applied to the non-seismic geophysical data collected on BMR Marine Survey68, northeast Gippsland Basin and southern New South Wales margin. The cruise was conducted between 21 March and 15 April 1987.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, geophysics, marine, marine survey
Organization: Australian Ocean Data Network
Multimedia products of the bathymetry data from the MH370 Search Area

This is a collection of multimedia products of data visualisations showing sea floor terrain in the MH370 search area and associated public communications regarding the search and Phase 1 data release. The video flythroughs and data visualisations were developed from a sample of bathymetric data from Phase 1 collected as part of the search for missing Malaysia Airlines flight MH370. This includes all visualisations (images and videos) used in the 'Data behind the search for MH370' Story Map.

This also contains the translated versions of the MH370 Story Map on ESRIOnline ("the Data behind the search for MH370") into Malay and Chinese.

Tags: Movie, Multimedia, Published_External, bathymetry, mapping, marine, video
Organization: Australian Ocean Data Network
Darwin Harbour Habitat Mapping Program: Predicted seabed sand content

This resource contains a predicted seabed sand content grid for the greater Darwin Harbour region as part of a baseline seabed mapping program of Darwin Harbour and Bynoe Harbour. This project was funded through offset funds provided by an INPEX-led Ichthys LNG Project to the Northern Territory Government's Department of Environment and Natural Resources (NTG-DENR) with co-investment from Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS). The intent of this 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 and information to underpin marine resource management decisions. The predicted seabed sand content grid was derived from a compilation of multiple surveys undertaken by GA, AIMS and NTG-DENR between 2011 and 2017, including GA0333 (Siwabessy et al., 2015), GA0341 (Siwabessy et al., 2015), GA0351/SOL6187 (Siwabessy et al., 2016), GA4452/SOL6432 (Siwabessy et al., 2017), GA0356 (Radke et al., 2017), and GA0358 and GA0359 (Radke et al., 2018), adding to those from a previous survey GA0333 collected by GA, AIMS and NTG-DENR. This dataset provides spatially continuous predictions of seabed %sand (63-2000 µm) content for the Darwin and Bynoe harbour region, northern Australian marine margin. Data are presented in 10 m resolution raster grids format and ascii text file. Predictions are based on 395 samples and seven environmental variables derived from high resolution multibeam sonar bathymetry and backscatter data. Accuracy of predictions is high, with a VEcv = 39% for sand; and the predictive accuracy has been increased by 84.8% for sand in comparison with the commonly used method (i.e., IDW).  Absences in predictions occur in this dataset as a result of non-availability associated with predictive variables. This dataset supersedes previous predictions of sand content for the Darwin and Bynoe harbour region with demonstrated improvements in predictive accuracy.

Tags: Darwin Harbour, EARTH SCIENCES, Habitat Mapping, Predicted seabed sand content, Published_External
Organization: Australian Ocean Data Network
DLGWV—Digital Projects Dashboard contribution

Data published by the Department of Local Government, Water and Volunteers (DLGWV) that supports the Digital Projects Dashboard. Data resources include the list of digital and information and communication technology (ICT) enabled initiatives and their reported status.
For further information, visit the Queensland Government Digital Projects Dashboard website. Please refer to the pages: About the dashboard, FAQs and Glossary.

Tags: dashboard, digital-projects-dashboard, ict, ict-dashboard, initiatives, projects
Organization: Local Government, Water and Volunteers
RV Investigator Voyage IN2026_T02 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_T02, titled "CAPSTAN IN2026_T02." The voyage took place between April 23, 2026 and May 05, 2026 (AEST), departing from Fremantle 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), Environmental DNA (eDNA),  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, 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), Triaxus,  Weather Radar, Video, Expendable Bathythermographs (XBTs), Wildlife Observations (seabirds, cetaceans and seals).

Voyage-specific measurements:
Core Argo floats, Biogeochemical (BGC) Argo floats, Deep Argo floats, Continuous Plankton Recorder (CPR), Beam Trawl, Surface Net, Kasten corer, Sediment Grab, Hydrophones.

The archive for the IN2026_T02 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 HF-Data-Requests@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
Digital Earth Australia Coastlines

Background:
Australia has a highly dynamic coastline of over 30,000 km, with over 85% of its population living within 50 km of the coast. This coastline is subject to a wide range of pressures, including extreme weather and climate, sea level rise and human development. Understanding how the coastline responds to these pressures is crucial to managing this region, from social, environmental and economic perspectives. 

What this product offers:
Digital Earth Australia Coastlines is a continental dataset that includes annual shorelines and rates of coastal change along the entire Australian coastline from 1988 to the present. 

The product combines satellite data from Geoscience Australia's Digital Earth Australia program with tidal modelling to map the typical location of the coastline at mean sea level for each year. The product enables trends of coastal erosion and growth to be examined annually at both a local and continental scale, and for patterns of coastal change to be mapped historically and updated regularly as data continues to be acquired. This allows current rates of coastal change to be compared with that observed in previous years or decades. 

The ability to map shoreline positions for each year provides valuable insights into whether changes to our coastline are the result of particular events or actions, or a process of more gradual change over time. This information can enable scientists, managers and policy makers to assess impacts from the range of drivers impacting our coastlines and potentially assist planning and forecasting for future scenarios. 

Applications
- Monitoring and mapping rates of coastal erosion along the Australian coastline 
- Prioritise and evaluate the impacts of local and regional coastal management based on historical coastline change 
- Modelling how coastlines respond to drivers of change, including extreme weather events, sea level rise or human development 
- Supporting geomorphological studies of how and why coastlines have changed across time

Tags: MARINE Coasts, OCEANOGRAPHY Physical, Published_External
Organization: Australian Ocean Data Network
Generating Continental Scale Pixel-Based Surface Reflectance Composites in Coastal Regions with the Use of a Multi-Resolution Tidal Model

Generating continental-scale pixel composites in dynamic coastal and estuarine environments presents a unique challenge as the application of a temporal or seasonal approach to composite generation is confounded by tidal influences. We demonstrate how this can be resolved using an approach to compositing that provides robust composites of multi-type environments. In addition to the visual aesthetics of the images created, we demonstrate the utility of these composites for further interpretation and analysis. This is enabled by the manner in which our approach captures the spatial variation in tidal dynamics through the use of a Voronoi mesh, and preserves the band relationships within the modelled spectra at each pixel. Case studies are presented which include continental-scale mosaics of the Australian coastline at high and low tide and tailored examples demonstrating the potential of the tidally constrained composites to address a range of coastal change detection and monitoring applications. We conclude with a discussion on the potential applications of the composite products and method in the coastal and marine environment, as well as further development directions for our tidal modelling framework.

Citation: Sagar, S.; Phillips, C.; Bala, B.; Roberts, D.; Lymburner, L. Generating Continental Scale Pixel-Based Surface Reflectance Composites in Coastal Regions with the Use of a Multi-Resolution Tidal Model. Remote Sens. 2018, 10, 480. https://doi.org/10.3390/rs10030480

Tags: EARTH SCIENCES, Landsat, change detection, coastal, pixel=based composites, tidal
Organization: Australian Ocean Data Network
Franklin Voyage FR 04/97 Hydrology Data

This dataset contains the processed Hydrology (HYD) data collected on Franklin voyage FR 04/97 (TROPICS97 cruise 1). The voyage took place in the Coral Sea, Gulf of Papua, Solomon and Bismarck Seas during 8-23 May 1997. This dataset has been processed and is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the data processing report (as available). Franklin on-voyage hydrology data are typically obtained from water samples collected in Niskin bottles at various depths during each CTD cast. Parameters measured normally comprise temperature, salinity, dissolved oxygen, phosphate, nitrate, silicate and nitrite.

Organization: Australian Ocean Data Network
Refining the Moho across the Australian continent

In recent years there has been a considerable expansion of deployments of portable seismic stations across Australia, which have been analysed by receiver function or autocorrelation methods to extract estimates of Moho depth. An ongoing program of full-crustal reflection profiles has now provided more than 25,000 km of reflection transects that have been interpreted for Moho structure. The Moho dataset is further augmented by extensive marine reflection results. These new data sources have been combined with earlier refraction and receiver function results to provide full continental coverage, though some desert areas remain with limited sampling. 
The dense sampling of the Moho indicates the presence of rapid changes in Moho depth and so the Moho surface has been constructed using an approach that allows different weighting and spatial influence depending on the nature of the estimate. The inclusion of Moho results from gravity inversion with low weighting helps to resolve the continent-ocean transition and to provide additional control in the least sampled zones. The refined distribution indicates the presence of widespread smaller-scale variations in Moho structure. Strong lateral contrasts in crustal thickness remain, but some have become more subdued with improved sampling of critical areas. The main differences from earlier results lie in previously poorly sampled regions around the Lake Eyre Basin, where additional passive seismic results indicate somewhat thicker crust though still witha strong contrast in crustal thickness to the cratonic zone to the west.

Appeared in Geophysical Journal International, January 2023

Tags: AusArray, Australia, Body waves, Controlled source seismology, Crustal Structure, EFTF – Exploring for the Future, Published_External, Seismology and seismic exploration
Organization: Australian Ocean Data Network
Mapping the deep ocean: Geoscience Australia and the search for MH370

A short film describing the processes of bathymetric mapping and side scan sonar, used to gather data within the search area for missing Malaysia Airlines flight MH370. 

Synopsis:
The film begins with a brief description of Geoscience Australia's role working with the lead agencies in the search process. It explains that existing satellite data is not detailed enough to assist in the search for MH370 and that more detailed bathymetric surveying is required before an underwater search can commence. The film describes how a bathymetric survey is carried out using sonar systems mounted on a ship's hull. It then shows imagery derived from the bathymetric mapping of the search area. The film then shows how a detailed underwater search is carried out, using the bathymetry as a guide. Animation shows how a towed, submersible vehicle gathers more detailed data while travelling slowly at a height of approximately 100 metres above the sea floor. The animation shows how side scan sonar reveals more detailed information about sea floor features. The film ends with a brief summary of the role of the Australian Government agencies involved in the search. Brief credits follow with a copyright statement and publication information.

About the data visualisation:
This video contains data visualisation and animation sequences. Bathymetry visualisations are derived from data gathered within the MH370 search area. Side scan sonar visualisations are derived from demonstration data only, not gathered within the MH370 search area. Animation sequences showing ship-mounted bathymetry and towed side-scan sonar are representations only and not to scale.

Film production credits:

Geoscience Australia
Script, Direction: Bobby Cerini, Melinda Holland
Edit, Cinematography, Sound: Michael O'Rourke
Production Management: Bobby Cerini, Neil Caldwell
3D Data Visualisation, Animation: Neil Caldwell, Michael de Hoog
Graphics: Kath Hagan
Scientific Advice: Stuart Minchin, Anna Potter, Maggie Tran, Tanya Whiteway, Kim Picard 

Additional credits:

Voiceover: Media Sound Studios

Music: 'Namaste' by Jason Shaw, 2013

Animation of Globe: 'Earth in Cycles' by Adriano, 2012

3D Data Visualisation and Animation (ship, bathymetry, side scan, ocean features):  Eye Candy Animation 
Producer: Damian Stocks 
Creative Director: Rachael Johnson 
Studio Manager: Jess Burrows 
Lead Artist: Artur Piwko 
3D Artist: Kynan Stevenson

Tags: Earth Sciences, Movie, Multimedia, Published_External, marine
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2025_V06 CTD Data

This record describes the CTD data collected on Investigator voyage IN2025_V06, titled: "The Coral Sea frontier: Deep-sea biodiversity assessment of the Coral Sea Marine Park." The voyage took place between October 10, 2025 and November 14, 2025 (AEST), departing from Brisbane and returning to Brisbane.

Data for 41 CTD deployments were acquired using the Sea-Bird SBE911 CTD unit #24, fitted with 36 twelve-litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO-supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.
The final conductivity calibration was based on a single deployment grouping. The final calibration from the primary sensor had a standard deviation (SD) of 0.0025203 PSU, marginally outside our target of ‘better than 0.002 PSU’. The standard product of 1-decibar binned averages were produced using data from the primary sensors.
The dissolved oxygen data calibration fit had a SD of 0.88132 μM. The agreement between the CTD and bottle data was good.
PAR, altimeter, g\fluorescence, transmissometer, chlorophyll and turbidity sensors were also installed on the auxiliary A/D channels of the CTD.

The collected data were processed (quality-controlled), and subsequently archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.

Organization: Australian Ocean Data Network
Lower Cretaceous foraminifera from Phillips - Sunray Buckabie No. 1 well, Queensland

Phillips-Sunray Buckabie No.1 Well, situated 29 miles north of Quilpie, SW Queensland and was drilled to the depth of 9,070 feet. This report covers the examination of cuttings from 80 feet down to 3,310 feet which was considered to be the base of the marine Lower Cretaceous section. Core 1 at 1,123' 8-1,136' 6, core 3 at 3,264' - 3,264' 6 and core 8 at 5,518' - 5,537 were also examined. From the study of the lithology and of the first appearance of certain foraminiferal species and of Inoceramus prisms in the downward sequence, a fairly complete section of the Lower Cretaceous sequence in this south-western part of the Great Artesian Basin in Queensland has been determined.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, palaeontology
Organization: Australian Ocean Data Network
Preliminary Results from Marine Seismic Survey GA302 over Capel and Faust Basins

Data from 50 sonobuoys were recorded over the Capel and Faust Basins, 800 km to the east of Australia in water depths 1500-2000 m, during a 2006/07 seismic survey (GA302) for Geoscience Australia's New Oil initiative. These data were interpreted and forward modelled by ray-tracing to provide an estimate of P-wave velocities in the upper sedimentary section, and hence constrain estimates of sediment thickness. Also recorded were gravity and magnetic anomaly data which, in conjunction with the very high quality seismic reflection data, provided additional constraints upon the velocity models. The preliminary seismic reflection records studied are typified by four sets of reflection patterns: I) a ~500m thick sequence just below sea floor, II) a highly reflective flat-lying set of reflectors of variable thickness lying unconformably over III) a discontinuous, dipping, deformed sequence penetrated by high-amplitude events, and IV) deepest sequence generally marked by onset of high amplitude events. Typical ranges in four model layers below water were: 1.9, 2.3-3.0, 3.6-4.7, 5-5.3 km/s. Gravity models based on these results were compared to features identified on depth converted seismic reflection lines and indicate that sediment thickness at densities approximating 2.3 t/m3 (typically including sequences I-III) may reach 5 km in several localities.

Tags: AU, Article, Earth Sciences, External Publication, NC, NF, Published_External, gravity, marine, marine survey, sedimentary basins, seismic sections, sequence stratigraphy
Organization: Australian Ocean Data Network
Post Cruise Report, Prydz Bay and Mac. Robertson Shelf, Antarctica, January - March 1993

The Natural Variability Sub-program of the Co-operative Research Centre for Antarctic and Southern Ocean Environments aims to study past environmental change by examining ice core and sedimentary records in Antarctica and the Southern Ocean. As the first stage in marine sedimentological studies, Voyage 7 of the Australian National Antarctic Research Expeditions (ANARE) 1992/1993 shipping season included a geoscience program comprising echo sounder traverses, gravity coring and grab sampling of the Antarctic continental shelf and slope on the Mac. Robertson Shelf and in Prydz Bay. This record describes the preliminary results of the voyage and presents location information for core and grab samples and preliminary descriptions of grab samples and lists of subsamples taken by associated research programs.

Tags: AQ, Earth Sciences, GA Publication, Published_External, Record, marine, marine survey
Organization: Australian Ocean Data Network
Rib Reef Water Temperature From 14 Dec 2011 To 20 Jul 2017

The 'Wireless Sensor Networks Facility' (formerly known as Facility for The Automated Intelligent Monitoring of Marine Systems (FAIMMS)), part of the Great Barrier Reef Ocean Observing System project (GBROOS), is a facility of the Australian 'Integrated Marine Observing System' (IMOS) project. This data set was collected by the Great Barrier Reef Wireless Sensor Network.

Organization: Australian Ocean Data Network