AndreaBozzo/ceres-open-data-index huggingface dataset:
Historical February Sea-Surface Temperature Estimates Utilising Diatom Transfer Functions with Core MD88-787

The purpose of this study was to estimate past sea-surface temperature in the Southeast Indian Ocean. The accumulation of diatom microplankton assemblages in sediments being the proxy for these records of climatic change. 
A transfer function is a mathematical method that allows quantitative estimations of environmental parameters from past biogenic sedimentation. In this study, a diatom transfer function was established to relate biological species to selected environmental parameter of the ocean (sea-surface temp). These equations were then employed on observed fossil species from core samples to provide quantitative estimates of sea-surface temperature.
Estimates of sea-surface temperature are given here based on the assemblages of diatoms found in core MD88-787. The information provided gives the extrapolated age-scale through the core, and two estimates of feb SST based on different diatom transfer functions (DTF 109/24/6 and DTF 166/34/4). 
It is probable that the 'real' SST signal lies between the model estimates. The model diagnostics and lower number of non-analogue events from DTF 109/24/6 over that of results produced by DTF 166/34/4 suggest that SST estimates are closer to those provided by the former model.

Tags: Biosphere | Microbiota | Diatoms, Oceans | Ocean Temperature | Sea Surface Temperature, Transfer function, core_depth, diatom_transfer_function_communality, diatom_transfer_function_sea_surface_temperature, extrapolated_age_scale, latitude, longitude, taxonomic_group_count, taxonomic_name
Organization: Australian Ocean Data Network
Secchi Disc data measured during a high rainfall event in Port Jackson, 25 August 2007

The Sydney Harbour catchment area includes a number of different river systems which drain into the Port Jackson estuary. During high rainfall events the catchment areas behave differently to deliver contaminants into the Port Jackson estuary. Under conditions of high rainfall contaminants are delivered to areas very quickly as freshwater slides over the top of the denser more saline waters of the estuary. Secchi Disc samples were taken along the Port Jackson estuary over four days to determine the behaviour of the freshwater plume as it travels in a layer of freshwater to be flushed or flocculate out at some point in the estuary.

Tags: Oceans | Ocean Optics | Secchi Depth, Oceans | Water Quality | Toxic Chemicals, secchi_depth_of_sea_water
Organization: Australian Ocean Data Network
Seagrass meadow extents derived from field to spaceborne earth observation at Green Island (Wunyami), a reef habitat in the Cairns section of the Great Barrier Reef, November 2020

Seagrass meadow extent and meadow-scape was mapped using two alternative approaches at Green Island, a reef clear water habitat, in the Cairns section of the Great Barrier Reef, in November 2020. Approach 1 included mapping seagrass meadow-scape using imagery captured during low spring tides with a DJI Mavic 2 Pro UAV at an altitude of 100 m, with a resolution of 2.45cm/pixel. Approach 2 used PlanetScope Dove imagery captured on 05 November 2020 coinciding as close as possible to the field-surveys from 25 to 27 November 2020, with 3.7 m x 3.7 m pixels (nadir viewing) acquired from the PlanetScope archive.
This record describes meadow extent data collected using Approach 2 (PlanetScope imagery). View the original metadata record at https://doi.pangaea.de/10.1594/PANGAEA.946605 for the full data collection.

Tags: Great Barrier Reef, benthic habitat, deep learning, machine learning, reef
Organization: Australian Ocean Data Network
Water Resources Data (WRDATA): Department of Water, Government of Western Australia

The Department of Water operates numerous surface water and groundwater monitoring sites throughout Western Australia and collects data on the quality and quantity of the State's water resources. The information, which includes surface water levels, flows and quality, and groundwater levels and quality, contributes to our understanding of the nature of the State's water resources, their fluctuations, and their response to changing climate and human pressures. This understanding allows us to make informed decisions, provide useful advice, and manage and plan effectively for safe and sustainable water supplies.
A summary of Water Resources Data for many monitoring sites throughout the state is available via this link. The reports are updated frequently and the data is generally current to within the last 12 months. Sites on the Rainfall Sites, Streamflow Sites and Groundwater Sites pages are listed by Site Number. To find a site by name simply click on the links below. If you require data other than that available from the Rainfall Sites or Streamflow Sites pages please use the Water Resources Information Catalogue to select the sites and data in which you are interested and send us a Data Request using the Data Request email address: Water Information Officer. A link to this can be accessed via the WA Water Resources Data (WRDATA) Homepage link below.

Tags: Atmosphere | Precipitation | Rain, Hydrosphere | Ground Water | Water Table, Hydrosphere | Surface Water | Discharge/flow, WESTERN AUSTRALIA, sea_level, sea_surface_swell_wave_significant_height, tide_level, wind_speed
Organization: Australian Ocean Data Network
Assessing the role of historical temperature regime and algal symbionts on the heat tolerance of coral juveniles

This study whether corals from the warmer reef produced more thermally tolerant hybrid and purebred offspring compared with crosses produced with colonies sourced from the cooler reef and whether different symbiont taxa affect heat tolerance. Juveniles were infected with Symbiodinium tridacnidorum, Cladocopium goreaui and Durusdinium trenchii and survival, bleaching and growth were assessed at 27.5&deg;C and 31&deg;C. The experiment focused on familial crosses produced from (n=3) parents from a warm far northern reef (WW1, WW2, WW3), one cross with a warm dam and cool sire (WC) and one cross with a cool dam and warm sire (CW).
Larvae from each cross were allowed to settle, and grown on plugs for 11 days. Juveniles were exposed to one of three treatments of the following Symbiodiniaceae taxa cultured at the Australian Institute of Marine Science Algal Culture Facility: S. tridacnidorum (monoclonal SCF022.01), C. goreaui (monoclonal SCF055-01.10) and D. trenchii (heterogeneous SCF082) as described in Quigley et al. (2014)
All inoculated juveniles were subsequently kept at 27.5&deg;C for 8 days and symbiosis establishment was visually confirmed over this period under a microscope.
Plugs were then randomly divided across treatment tanks, and half from each symbiosis-establishment treatment were placed into 31&deg;C treatment tanks without ramping, totalling six tanks (three replicate tanks at 27.5&deg;C and three replicate tanks at 31&deg;C).
Juvenile survival, bleaching and growth were assessed through image analysis, starting on the first day of exposure to 31&deg;C, with five time points measured and analysed at 1, 9, 35, 49 and 70 days of heat exposure.
Juveniles were scored as highly pigmented (3=D6), pale (2=D4), bleached (1=D1, translucent tissue), or dead (0, missing or bare skeleton with or without algal or cyanobacterial overgrowth)
Statistical analyses completed in R using generalisezd linear models and percent change in the bleaching score and juvenile area were calculated for each individual juvenile across host genetic background and symbiont type. See Quigley et al (2020) for full details.

Organization: Australian Ocean Data Network
A Validated Method to Quantify Microplastic Contamination in Subsurface Seawater: A case study sampling the Sydney nearshore under sail

AIMS, in collaboration with The Clean Ocean Foundation, has completed this proof-of-concept study to facilitate further sampling of microplastics in the Southern Ocean (a joint collaborative initiative involving the Australian Institute of Marine Science (AIMS), the Integrated Marine Observing System (IMOS) and solo yachtswoman Lisa Blair). In this project, AIMS trialled density flotation and chemical digestion separation methods to process subsurface seawater samples and retrieve environmental microplastics. This report presents findings from controlled spike recovery tests as well as opportunistic field sampling events of subsurface waters processed with both separation methods. Opportunistic samples were collected along the NSW coastline in December 2021. Given the location of the sampling transects, this report also provides the first spatial baseline information on microplastic contamination in NSW waters adjacent to estuary outflows and urban outfalls. After trialling both separation methods, microplastics retrieved from the NSW samples were physically and chemically characterized used stereomicroscopy and spectroscopy, respectively. No statistical analysis were performed due to the low number of replicates. Results showed repeated chemical digestion employing potassium hydroxide solutions was most effective at microplastic recovery. Microplastics were retrieved from each of the eight samples collected in NSW subsurface seawaters, with polyethylene and polyester fibres being the most prevalent polymer types detected. The highest numbers of microplastics were recorded adjcent to the estuary outflows and urban outfalls present within the sampling area. Overall, the sampling and processing protocols developed here are allowing for the extension of the spatial coverage of microplastic data in seawaters.

Organization: Australian Ocean Data Network
Current values collected through the water column using an Acoustic Doppler Current Profiler (ADCP) in the centre of Jervis Bay: Winter Deployment

The record describes data collected from a winter deployment of an Acoustic Doppler Current Profiler (ADCP) moored in the central part of Jervis Bay, New South Wales (35o 05'S, 150o 44'E). An ADCP measures how fast water is moving across an entire water column. Anchored to the seafloor it can measure current speed not just at the bottom, but also at equal intervals all the way up to the surface. For this experiment, the ADCP was moored on the seabed, in a frame, with sensors looking upwards and approximately 0.5m above the seabed. 
Over the winter deployment, 26th July 1991 to 26th September 1991, the ADCP was set-up with a 60 minute sampling interval and currents were measured over 1m depth bins. Bin numbers and currents are referenced as a height above the seabed (due to the uncertainty in defining water depth because of tides and air pressure). As such Bin #1 is centered at 1.5m above the transducer face or 2.0m above the seabed. Bin #2 is centered at 3m above the seabed, Bin #3 at 4m and so on.
The water depth was measured as 24m on deployment and the first 19 bins provided good data. Currents from bin 20 up were very noisy and it is inferred that contamination had occurred. These bins were removed from the dataset.
Two resources are provided in this record: 1) A schematic of depth bin location for the winter deployment and, 2) The raw, or unfiltered current values for each bin depth provided every 60 minutes in terms of east/west and north/south components.
This child record relates to the parent, c571bb80-2ae7-11dd-a735-00188b4c0af8. A pdf outlining the structure and hierarchy of all metadata records relating to this project is available to download through this record. Also available is a pdf of a published working paper documenting this experiment and the results.

Tags: Oceans | Ocean Circulation | Water Masses, Oceans | Ocean Circulation | Wind-driven Circulation, Oceans | Tides | Tidal Components, Oceans | Tides | Tidal Currents, depth, eastward_sea_water_velocity, northward_sea_water_velocity, sea_floor_depth_below_sea_surface, time
Organization: Australian Ocean Data Network
Fatty acids, sterols and hydrocarbons in the leaves of mangroves from northern Australia and New Zealand

Fresh leaves were collected from 11 species of mangrove plants for lipid analyses. The species examined were Avicennia marina, Avicennia marina var resinifera, Xylocarpus granatum, Rhizophora stylosa, Rhizophora apiculata, Rhizophora mucronata, Ceriops tagal var. australis, Bruguiera sexangula, Bruguiera gymnorrhiza, Acanthus ilicifolius and Sonneralia caseolaris, which were cultivated from seedlings in a shadehouse at the Australian Institute of Marine Science (AIMS). Ten of these species can be found along the coast of north Queensland, while Avicennia marina var resinifera occurs in New Zealand.The leaves were cut into small pieces and ground in an agate mortar and pestle under CHCl3-MeOH (1:1). After extraction, an aliquot of the solvent extract was saponified and partitioned to give the neutral lipids and the acidic lipids. Sterols and hydrocarbons were isolated from the neutral fraction by normal-phase HPLC. The acidic lipids were methylated with H2SO4-MeOH and analysed by GC. The sterols were further treated and after extraction yielded the steryl methyl ethers, which were analysed by GC. The hydrocarbons were also analysed by GC. Moisture content was also determined on separate leaf samples.
 This research was undertaken to assess the importance of mangrove leaves as a source of organic material such as fatty acids, sterols and hydrocarbons for food webs within coastal ecosystems. Variations in fatty acid, sterol and hydrocarbon composition were examined for potential chemotaxonomic significance.

Organization: Australian Ocean Data Network
NESP TWQ Project 3.6 - Establishing a research framework for future NESP investment into better understanding of the presence of Box-Jellyfishes (Irukandji) and risks in the Great Barrier Reef, 2015-2016 (JCU)

This project intends to conduct a workshop with key researchers and stakeholders to establish the future research framework for NESP investment into better understanding of box-jellyfishes presence and risk in the Great Barrier Reef. This will include defining the scope of work required to: identify how species of Irukandji and stingers respond to changing water quality conditions, predictions of box-jellyfishes presence based on environmental conditions, determine ecological impacts, innovative management options. We will engage with stakeholders to discuss scientific information already available, research gaps to be filled and develop a framework to guide future NESP research to meet end-user needs.

Tags: National Environmental Science Programme Tropical Water Quality (NESP TWQ) hub, marine
Organization: Australian Ocean Data Network
Foraging strategies and prey encounter rate of free-ranging Little Penguins

Data loggers were fitted to four Little Penguins in August 2002 to reconstruct the time/activity
budget of free-ranging Little Penguins from Penguin
Island, Western Australia as they foraged in the shallow waters of Comet Bay, Western Australia.

Tags: 40 001008, Eudyptula minor, Oceans | Marine Biology | Marine Birds, acceleration profiles, feeding and activity patterns
Organization: Australian Ocean Data Network
A 3D map of englacial attenuation rate from radar reflections at Law Dome, East Antarctica

The East Antarctic Ice Sheet (EAIS) is the largest source of potential sea-level rise, containing some 19 m of sea-level equivalent. One of the well-investigated regions in East Antarctica is Law Dome, which is a small independent ice cap situated to the west of Totten Ice Shelf. The ice cap is slow-moving, has a low melt-rate at the surface and moderate wind speeds, making it a useful study site for our investigations. Radar data from Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project has good coverage over this area. A new method is proposed for the estimation of attenuation rate from radar data which is mathematically modeled as a constrained regularised l2 minimization problem. In the proposed method, only radar data is required and the englacial reflectors are automatically detected from the radar data itself. A final product of 3D attenuation rates and 3D samples count is provided for the research community in this data set.

Tags: Attenuation rate, Count samples, Law Dome, altitude, attenuation, easting, ice penetrating radar, northing
Organization: Australian Ocean Data Network
Spencer Gulf and Gulf St Vincent oceanography: moored data

CTD and ADCP mooring data from numerous projects in Spencer Gulf and Gulf St Vincent, South Australia. Along with SAIMOS  and IS2 data this includes historical data collected by researchers as far back as the 1980's.

Tags: Buoys, Current Meters/Profilers | Acoustic Doppler Current Profiler (ADCP), Global/Oceans | Southern Ocean/ Australia extension, Marine Features (Australia) | Gulf St. Vincent, SA, Marine Features (Australia) | Spencer Gulf, SA, Oceans | Marine Sediments | Turbidity, Oceans | Ocean Chemistry | Oxygen, Oceans | Ocean Circulation | Ocean Currents, Oceans | Ocean Optics | Fluorescence, Oceans | Ocean Pressure | Water Pressure, Oceans | Ocean Temperature | Water Temperature, Oceans | Ocean Waves | Wave Speed/direction, Oceans | Salinity/density | Conductivity, direction_of_sea_water_velocity, fluorescence_in_sea_water, mass_concentration_of_oxygen_in_sea_water, sea_water_electrical_conductivity, sea_water_pressure, sea_water_salinity, sea_water_speed, sea_water_temperature, turbidity
Organization: Australian Ocean Data Network
Cumulative Pressures on the Distinctive Values of Exmouth Gulf

A report was developed by the Western Australian Marine Science Institution (WAMSI) in partnership with the Environmental Protection Authority (EPA) to help deliver strategic advice to the Western Australian Minister for the Environment under Section 16(e) of the Environmental Protection Act 1986 on the potential cumulative impacts of the proposed activities and developments on the environmental, social and cultural values of Exmouth Gulf.
The report provides a contemporaneous understanding of the Distinctive Values of Exmouth Gulf, the previous, current and forecasted human use of the system, and has drawn on scientific expertise to analyse the relationship between the Distinctive Value and Environmental Pressures of the Exmouth
Gulf region.  The extensive review of the literature uncovered over 600 references and provided a snapshot of research over nine decades.
Project webpage - https://wamsi.org.au/research/programs/exmouth-gulf/

Tags: Exmouth Gulf, World
Organization: Australian Ocean Data Network
ERIN Dual-processed Landsat TM tiles in Western Australia - Mount Barker tile

A Landsat TM image was cut using a NATMAP Geoscience Australia 1:250 000 scale map named Mount Barker (Map number SI50-11) and was saved in GeoTIFF format.
The image was geometrically rectified to GDA94 (Datum) and MGA50 (Projection) and a dual enhancement technique was conducted to Landsat TM satellite data where land was enhanced using bands 741 (RGB) and water was enhanced using bands 321 (RGB).  This is one of a series of tiles processed by ERIN from Coastal Atlas project in the 1990's.

Organization: Australian Ocean Data Network
Coastalwatch: Coastal Condition Monitoring System - Shoalhaven

Since its launch in 1998, Coastalwatch has become Australia's most popular water sports website, and is consistently ranked in the top eight sporting websites. The site displays live vision from over 90 coastal locations around Australia and overseas. It also provides daily surf reports, swell forecasting, weather information and news; as well as video, photographic and editorial content. 
Coastalwatch has also developed a Coastal Conditions Monitoring System, which utilises the camera network to make a significant contribution to safer coastal use and more efficient and cost effective coastal management.  To this end, Coastalwatch has partnered with Surf Life Saving Australia and Surfing Australia; and supports Volunteer Rescue organisations, community groups, and charities such as SurfAid International and the Surfrider Foundation Australia.  
Coastalwatch is committed to bringing the coast to all Australians and overseas visitors, and becoming the premier reference site for all coastal user groups. With this in mind, Coastalwatch is dedicated to assisting with sound coastal zone research and management through the use of all its resources.

Tags: Oceans | Coastal Processes | Beaches, Oceans | Coastal Processes | Erosion, Oceans | Coastal Processes | Intertidal Zone, Oceans | Coastal Processes | Longshore Currents, Oceans | Coastal Processes | Shoreline Displacement, Oceans | Coastal Processes | Shorelines, Oceans | Coastal Processes | Tidal Height, Oceans | Ocean Waves | Wave Frequency, Oceans | Ocean Waves | Wave Height
Organization: Australian Ocean Data Network
Secondary metabolites and pigments in the tissues and diet of the sea cucumber, Holothuria atra from the Great Barrier Reef

Three specimens of Holothuria atra were collected from Palfry Island in the Lizard Island group in December 1995, a week before mass spawning occurred. The sea cucumbers were kept alive in an aerated tank with running seawater, which contained sand, coral rubble and sediment from their natural habitat. After 14 days, the sea cucumbers were frozen and then the ovaries, epidermal tissues, viscera and gut content were removed. Additional sediment from the natural habitat was also collected.Tissue samples, gut contents and sediment were then processed to extract, separate and identify the metabolites and pigments present.
 This research was undertaken to determine the identity and concentration of metabolites and pigments occurring in the dorsal skin, gut contents, viscera and mature eggs of Holothuria atra and in the sediments of its natural habitat. The distribution of these metabolites and pigments within each tissue type, the gut contents and the sediment may give some insight into the origin and roles of these compounds.

Organization: Australian Ocean Data Network
IMOS - Deep Water Moorings - Current velocity time-series

The Deep Water Moorings Facility (formerly known as the Australian Bluewater Observing System) provides the coordination of national efforts in the sustained observation of open ocean properties with particular emphasis on observations important to climate and carbon cycle studies. This collection contains time-series observations of current velocity from moorings deployed by the facility. The primary parameters are the zonal, meridional and vertical components of the current speed within different bins in the water column, the height above the instrument of each bin, the pressure (when available) and depth at the instrument. Temperature at the instrument is also usually measured. The observations were made using a range of Acoustic Doppler Current Profiler (ADCP) and Acoustic Doppler Current Meter (single point measurement) instruments. This Deep Water Moorings' dataset includes discrete locations south of Tasmania, off Queensland and Indonesia.

Tags: Buoys | Moored Buoys, Countries | Australia, Countries | Indonesia, Countries | Timor-Leste, Current Meters/Profilers | Acoustic Doppler Current Profiler (ADCP), Deepwater Mooring, Global / Oceans | Pacific Ocean, Global / Oceans | Southern Ocean, Marine Features (Australia) | East Australian Current, Marine Features (Australia) | Indonesian Throughflow, Oceans | Bathymetry | Water Depth, Oceans | Ocean Circulation | Ocean Currents, Oceans | Ocean Temperature | Water Temperature, Oceans | Salinity/density | Conductivity, Regional Seas | Banda Sea, Regional Seas | Coral Sea, Regional Seas | Timor Sea, States, Territories (Australia) | Queensland, States, Territories (Australia) | Tasmania
Organization: Australian Ocean Data Network