AndreaBozzo/ceres-open-data-index huggingface dataset:
RV Investigator Voyage IN2025_V05 End of Voyage (EOV) Archive

This record describes the End of Voyage (EOV) data archive from the Marine National Facility (MNF) RV Investigator voyage IN2025_V05, titled "Eruption, destruction, and seafloor ecosystem recovery – Tonga's 2022 eruption of the century." The voyage took place between August 10, 2025 and October 01, 2025 (AEST), departing from Hobart and returning to Brisbane.
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, 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), Expendable Bathythermographs (XBTs).
Voyage-specific measurements:
Deep Towed Camera (DTC), Micro Rain Radar (MRR), Miniature Autonomous Plume Recorder (MAPR), Optical Backscatter sensor, Oxidation-Reduction Potential (ORP) meter, Box corer, Multi-corer, Piston Corer, Rock Dredge, NIWA epibenthic sled (mini-Sherman), Seismic, Video, Wildlife Observations (seabirds, cetaceans and seals).
The archive for the IN2025_V05 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: CSIRO Data Access Portal
Parkes observations for project P1365 semester 2025OCTS_07

Following the successful demonstration of a pilot first-pass (shallow) search of a small fraction of the sky, the second-pass processing has commenced for the SMART pulsar survey, which involves deep searches of 80-minute observations. The processing over the past year has led to the discovery of 11 new pulsars (including two millisecond ones), thus tripling the initial count from the first pass, and hinting at the exciting promise of this first southern-sky pulsar survey in the frequency band of SKA-Low.  All new pulsars need to be timed in order to determine their spin and astrometric parameters and to select specialised targets for detailed follow-ups. With the MWA no longer supporting routine pulsar observations for the coming year, timing follow-ups rely on other telescopes. The Parkes \emph{Murriyang} telescope, with an identical sky coverage, sensitivity and the wide frequency coverage, offers the best option to time SMART discoveries. We have demonstrated \emph{Murriyang's} suitability for this through a pilot project last semester and are now extending the project to a larger sample of 10 pulsars including two from the pilot project. The data will also allow us to study pulse profiles, polarisation, and flux densities from $\sim$100 MHz to 4 GHz. The analysis/results will be included in a publication in preparation that will detail the deep-search pipeline and report on initial pulsar discoveries.

Organization: CSIRO Data Access Portal
Parkes observations for project P960 semester 2025OCTS_06

We aim to carry out receiver pointing and characterisation tests of Parkes receivers. Typically, these tests are carried out after the receiver package is installed, but time does not always allow for proper characterisation. Receivers for consideration include UWL, MARS and 13MM packages. In addition to cross-referencing C007 for flux calibration via pointing, we aim to conduct gain-elevation and system temperature experiments using the Moon, to ensure users of the Parkes Observatory have the most accurate information available for calibration purposes.

Organization: CSIRO Data Access Portal
Parkes observations for project P1032 semester 2025OCTS_04

With this proposal, we aim to continue P1032, the rapid measurements of relativistic parameters of southern binary pulsar systems using data from the Parkes Ultra Wideband Low (UWL) receiver. As the MeerTime project at the MeerKAT radio telescope ended in early 2024, observations with the UWL receiver now form the backbone for extending the timing baselines of many pulsars that have been part of this project. Since the source selection in the previous semesters was tailored such that the UWL receiver is the most (versatile and) suited instrument to achieve the proposed scientific goals for the chosen pulsars, we propose to continue these observations. We will use the UWL data to obtain significant orbital coverage and timing baselines on these pulsars and obtain important constraints on orbital and temporal DM variations that will help in identifying the nature of the companion stars. Increasing the number of measured Neutron Star (NS) masses, as well as improving on current constraints has profound implications for NS internal structure and for stellar and binary evolution physics.

Organization: CSIRO Data Access Portal
Parkes observations for project P1381 semester 2025OCTS_04

The Galactic bulge is theorized to host a rich population of millisecond pulsars (MSPs), but direct detections have been severely hampered by high interstellar scattering, dispersion, and background noise near the Galactic center. These MSPs, if confirmed, would serve as powerful tools for testing gravity, studying dense matter, and probing gravitational waves. A key indirect tracer of this population is the Fermi GeV excess (FGE), an unresolved gamma-ray signal possibly originating from thousands of faint MSPs. However, the lack of direct detections has limited our ability to test this hypothesis.
  The MeerKAT Galactic Bulge Survey (MGBS) is the most sensitive pulsar search yet of this region, targeting the bulge MSP population. Early results from MGBS have already revealed several promising MSP candidates. We propose to use Murriyang to conduct targeted follow-up observations of three of the most compelling candidates from MGBS. Our goals are to confirm the pulsations, refine key parameters such as spectral indices and orbital characteristics, and strengthen their association with the bulge.
  Confirming even a handful of bulge MSPs would have wide-reaching impact: constraining the origin of the FGE, testing dark matter interpretations, refining models of Galactic structure, and improving predictions for low-frequency gravitational wave backgrounds. This proposal is a critical next step toward establishing a long-sought bulge MSP population and unlocking new physics from the inner Galaxy.

Organization: CSIRO Data Access Portal
Parkes observations for project P1054 semester 2025OCTS_05

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Fourtyfour sources have been discovered in targeted observations of Fermi unidentified point sources, two towards Supernova Remnants, 26 in the Magellanic Clouds, 106 in Globular Clusters and 87 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including a few relativistic systems, a pulsar with a planetary companion and  several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing for the precise measurement of rotational, astrometric and orbital parameters which, in turn, give us powerful tools to improve our understanding of the physics in extreme environments as well as of the population of neutron stars as a whole. The UWL receiver of the Parkes telescope is a sensitive, versatile instrument that is allowing us to successfully time these new sources, in the bright-end of TRAPUM discoveries.

Organization: CSIRO Data Access Portal
Metabarcoding in plankton surveys for informing fish spawning areas and monitoring changes in pelagic ecosystems

This collection consists of COI metabarcoding raw FASTQ.gz files prepared by CSIRO and SARDI from multiple bulked ichthyoplankton samples (larval fish and fish eggs) that were part of FRDC Project 2019-014 ' Can DNA from routine plankton surveys be used to measure fish spawning areas and monitor changes in pelagic ecosystems.'

Organization: CSIRO Data Access Portal
Genomic data for Australian, Little and Forest Ravens

Genomic data supporting the publication: 
Anna M. Kearns, Alex Drew, Lynn P. Pedler, Maya Penck, Stephen Donnellan and Leo Joseph. Unexpected hybridization and limited population structure uncovers perplexing taxonomic issues in the Australian, Little, and Forest Ravens. in prep.
Abstract:
Hybridization is common across the tree of life, and signals of introgression can be found in the genomes of birds world-wide. However, it is not always easy to differentiate between alternative evolutionary histories from genomic data. Here we use reduced representation sequencing to test hypotheses concerning the taxonomy and evolutionary history of a recently diverged lineage of ravens endemic to Australia. We find clear support for current species boundaries separating the Australian Corvus coronoides, Little C. mellori and Forest C. tasmanicus Ravens. Unexpectedly, however, we find genomic evidence for hybridization between C. mellori and C. coronoides in south-eastern Australia. Our data reject the hypothesis based on similar flocking behaviour, morphometrics, plumage and vocalisations that suggest the western subspecies of the Australian Raven C. c. perplexus may be sister to C. mellori. Instead, we find that C. c. perplexus is nested among other populations of C. coronoides, which themselves show little population structuring across the near continent-wide range of the species. Our genomic data reject the hypothesis that C. c. perplexus and C. c. coronoides are distinct species. Whether subspecies are warranted within C. coronoides depends on resolution of the significance of two critical sampling gaps and whether isolation-by-distance or historical allopatry and secondary contact best explain population structure. Our study highlights the diversity of biogeographic signals for widespread birds in Australia, the identification challenges existing among phenotypically similar species that also hybridise and the critical evolutionary insights that can be gained from historical museum specimens.

Organization: CSIRO Data Access Portal
Parkes observations for project P595 semester 2025OCTS_11

We propose to continue the PULSE@Parkes project in which high school students from Australia and around the World use the Parkes radio telescope in a remote observing model to observe and analyse pulsar data. The data from some PULSE@Parkes observations are used to support the space missions, other observations supplement the P456 Pulsar Timing Array project and the remainder were chosen in order to make a detailed analysis of pulsar timing irregularities and intermittency.

Organization: CSIRO Data Access Portal
Parkes observations for project P1375 semester 2025OCTS_05

Open clusters have historically shown a striking absence of neutron stars due to their shallow gravitational potential wells that cannot retain these compact objects after supernova explosions with large natal kicks. However, our recent archival search of Parkes observations has discovered three promising Rotating Radio Transient (RRAT) candidates, RRAT J1749-25, RRAT J1702-44, and RRAT J1237-60, in the direction of old open clusters. The dispersion measure (DM) analysis provides compelling evidence for cluster membership, with RRAT J1749-25 showing DM consistent with Theia 1661's predicted values, and RRAT J1237-60 exhibiting DM comparable to Trumpler 20's expectations. These detections are based on limited single-pulse observations with signal-to-noise ratios of ~7-8, requiring confirmation through extended observations. We propose follow-up observations using the Parkes Ultra-Wideband Low receiver with doubled integration times (2 hours per source, repeated twice) to confirm the astrophysical nature of these candidates and characterise their emission properties. Confirmation of neutron stars in open clusters would have profound implications for stellar evolution models, neutron star retention mechanisms, and our understanding of binary evolution in different stellar environments.

Organization: CSIRO Data Access Portal
Parkes observations for project P1357 semester 2025OCTS_03

MeerKAT has already discovered a number of Galactic transients, which are most likely to be Rotating Radio Transients (RRATs). Previous observations of a few of these sources with the Murriyang UWL receiver have proven its utility in follow-up timing observations of MeerKAT discoveries. MeerKAT has discovered a few more RRATs in its latest observing cycle and high quality UWL follow-up observations of these sources are required to determine the rotational period and period derivative and also to study their emission properties. Therefore, we request follow-up observations of 5 new sources to achieve this and to further enable spectral and polarization studies of these sources. Given the potential link between RRATs, magnetars, and some fast radio bursts (FRBs) suggested by both observations and theories, this study could reveal more similarities between these different classes of transient sources and significantly advance our understanding of their origins.

Organization: CSIRO Data Access Portal
Parkes observations for project PX600 semester 2020APRS_139

The Galactic Center (GC) is a key target for the radio component of Breakthrough Listen (BL) program. Offering the largest amount of stars in any given direction in the sky, the GC is widely cited as a location believed to harbour advanced civilizations, and it is also the most energetic region in the Milky Way. We aim to conduct BL-GC Survey with Parkes radio telescope for around 350 hours. We will cover the frequency range from 700 MHz to 4 GHz, utilizing the newly installed ultra-wideband receiver. Our team has already leveraged both standard and bespoke tools to construct a flexible software stack to search data for signals of interest. We will look for signals from extraterrestrial intelligence (ETI) by searching for both simple narrow-band signals and complex modulated signals. Along with that, as an ancillary science, we will also search for accelerated pulsars — likely orbiting a supermassive black hole at the centre of the Milky Way Galaxy. Data products produced during this program will also be publically available to engage larger pulsar community

Organization: CSIRO Data Access Portal
City Cable Australia Pty Ltd - Anticipatory Notice - Carlton - 12 November 2025

City Cable Australia Pty Ltd - Anticipatory Notice give on 12 November 2025 for ED25/98236

WKT Service_Area_Identifier Date contracted signed Project_Area Network_Infrastructure Estimated_Completion_Date
Polygon ((144.9610548 -37.8025767, 144.96135134 -37.80260708, 144.9612891 -37.80290791, 144.96100721 -37.8028732, 144.9610548 -37.8025767)) CityCable_009 07/11/2025 4-12 Leicester Place, Carlton Victoria 3053 FTTB 31/05/2027



Organization: SIP Register – City Cable Australia Pty Ltd
Parkes observations for project P1238 semester 2025OCTS_04

Young and energetic pulsars can power pulsar wind nebulae (PWNe), which are observable across the electromagnetic spectrum from radio to X-rays. Occasionally, the origin of a PWNe is connected to the parent supernova remnants (SNR). The exceptional sensitivity and high resolution of next-generation radio surveys conducted with ASKAP and MeerKAT make them particularly effective in discovering diffuse and low surface brightness objects in our Galaxy, such as PWNe and SNRs. We can then use these PWN and SNR associations to guide our targeted search for radio pulsars. This strategy has proven successful with our recent discoveries of two high-dispersion measure (DM) pulsars powering a bow-shocked PWNe. Building on this success, we continue our search and have selected the most promising and scientifically compelling candidates for detailed follow-up investigation. We propose to use the Parkes Ultra-Wideband Low (UWL) receiver to conduct a targeted search for three pulsar candidates. Given that the pulsar candidates are embedded in SNRs and/or PWNe, located near the Galactic Plane, and may be at large distances, we expect them to have high DMs. High DMs result in scattering and pulse broadening, making them difficult to detect in conventional low-frequency pulsar surveys. The wide frequency coverage of UWL, particularly its high-frequency band (3-4 GHz), presents a unique opportunity to mitigate these effects and significantly enhance the detectability of distant, highly dispersed pulsars.

Organization: CSIRO Data Access Portal
Parkes observations for project P1380 semester 2025OCTS_08

The association of FRB 200428 with the Galactic magnetar SGR 1935+2154 confirms that magnetars can power fast radio bursts (FRBs). However, FRB 200428 is 4 to 8 orders of magnitude less energetic than the typical population of cosmological FRBs. This discrepancy is likely due to the moderate magnetic field strength and evolved age of SGR 1935+2154. In contrast, newborn extragalactic magnetars, such as those formed in gamma-ray burst (GRB) central engines, are expected to have much stronger magnetic fields, more rapid spin-down, and highly dynamic magnetospheres, all of which favor the production of brighter and more frequent FRBs.
We propose a targeted search for FRBs from the recently localized GRB 230307A, a long-duration GRB with evidence suggesting the formation of a young magnetar. Given the source's relatively close distance (291 Mpc) and possible youth (less than 3 years), it offers a compelling opportunity to test FRB generation mechanisms during the early evolution of a magnetar.
We request 30 hours of observing time with the Parkes 64-m Murriyang telescope using the ultra-wideband low-frequency (UWL) receiver. Our plan includes one 10-hour long-duration session to detect rare or clustered bursts, and ten 2-hour sessions spread over 2-3 months to sample temporal variability. Data will be processed with state-of-the-art pipelines for single-pulse searches and coherent dedispersion.
A detection would strongly support magnetar-origin FRB models and provide key constraints on the early-time activity of GRB-formed neutron stars.

Organization: CSIRO Data Access Portal
East Australian Current gridded (depth, distance and time) mooring product

This daily-, distance- and depth-gridded product of currents, temperature and salinity in the East Australian Current (EAC) off Brisbane, Australia (2012-2022) is produced from the SOM-filled EAC individual mooring data product (see links section). The data can be used to produce volume and heat transport time series across the entire EAC. 
The dataset is fully described in: Sloyan, B.M., Cowley, R. &amp; Chapman, C.C. East Australian Current velocity, temperature and salinity data products. Sci Data 11, 10 (2024). https://doi.org/10.1038/s41597-023-02857-x

Organization: CSIRO Data Access Portal
RV Investigator BOM Atmospheric Data Overview (2016 onwards)

This record describes atmospheric data collected onboard the RV Investigator from 2016 onward and processed by the individual owners of the user-supplied instruments.
Different data types are available for each voyage; overall, they include:

User-supplied aerosol products (CSIRO, QUT, CSU)
Merged cloud radar-lidar product (BOM)
Microwave radiometer processed (MWR) data (University of Utah)
ODM470 disdrometer products (BOM/University of Hamburg)
Processed micro rain radar (MRR-2 or MRR-PRO) data and quicklooks (AAD/BOM)
NOAA surface flux products (NOAA)
Post-processed lidar data (AAD/BOM)
BASTA cloud radar level 2 data (BOM)

For more information please refer to the processing reports linked below.

Organization: CSIRO Data Access Portal
Long-term project observations for project P574 semester 2025OCTS_04

We request time to observe 270 pulsars on a regular basis in order to achieve three main science goals. The first is to understand pulsars: how do they spin down and what disrupts this process, how and why their profiles vary with time, whether they precess or have planetary mass companions, in short all the things that make pulsar timing noisier than the perfect clock. Secondly we want to understand the interstellar medium of our Galaxy through repeated monitoring of dispersion measure, rotation measure and flux density variations in conjunction with scintillation parameters. Finally, we provide these data as a community service both to the high-energy community where we have strong collaborative links (particularly to Fermi) and to the radio pulsar astronomers generally through the CSIRO archive. The project is on-going since 2007, we are (co-)authors on 107 papers arising from the P574 data. The data have contributed to the PhD theses of students from Bordeaux, Manchester, Oxford, Stanford, and Swinburne. We are seeking long-term project status with a view to continuing the project into the SKA era.

Organization: CSIRO Data Access Portal
Long-term project observations for project P1321 semester 2025OCTS_05

The atomic interstellar medium shows tiny-scale optical depth fluctuations on the scale of 0.1~10,000 AU, whose origin and nature are poorly understood. The existence of this Tiny-Scale Atomic Structure (TSAS) has significant implications, potentially calling into question our fundamental understanding of heating, cooling and dynamical processes in the interstellar medium. Yet observations remain sparse. This long-term project plans to search for temporal variations in HI absorption spectra seen against background pulsars to characterise TSAS in the Milky Way interstellar medium (ISM). These observations constitute the largest number of sightlines and densest temporal sampling ever performed in a single experiment, and will test predictions that TSAS is the tail end of a turbulent cascade, constrain its minimum size scale (down to resolutions of ~0.05 AU) and potentially provide the first direct measurements of pressures in "large" TSAS features of &gt; 1000 AU. We make use of the phase-resolved spectral line mode that we have recently implemented on Parkes, which has cut data rates and processing times by factors of ~1000 compared to past studies. This is an expansion of our pilot P1321 to a long term study.

Organization: CSIRO Data Access Portal