AndreaBozzo/ceres-open-data-index huggingface dataset:
12,000 year record of sea spray and minerogenic input from Emerald Lake, Macquarie Island

Reconstructed sea spray and minerogenic data for a 12,000 year lake sediment record from Emerald Lake, Macquarie Island. Proxies are based on biological (diatoms) and geochemical (micro x-ray fluorescence and hyperspectral imaging) indicators.
Data correspond to the figures in: Saunders et al. 2018 Holocene dynamics of the Southern Hemisphere westerly winds and possible links to CO2 outgassing. Nature Geoscience 11:650-655. doi.org/10.1038/s41561-018-0186-5.
Detailed supplementary information: https://static-content.springer.com/esm/art%3A10.1038%2Fs41561-018-0186-5/MediaObjects/41561_2018_186_MOESM1_ESM.pdf
Abstract: The Southern Hemisphere westerly winds (SHW) play an important role in regulating the capacity of the Southern Ocean carbon sink. They modulate upwelling of carbon-rich deep water and, with sea ice, determine the ocean surface area available for air–sea gas exchange. Some models indicate that the current strengthening and poleward shift of these winds will weaken the carbon sink. If correct, centennial- to millennial-scale reconstructions of the SHW intensity should be linked with past changes in atmospheric CO2, temperature and sea ice. Here we present a 12,300-year reconstruction of wind strength based on three independent proxies that track inputs of sea-salt aerosols and minerogenic particles accumulating in lake sediments on sub-Antarctic Macquarie Island. Between about 12.1 thousand years ago (ka) and 11.2 ka, and since about 7 ka, the wind intensities were above their long-term mean and corresponded with increasing atmospheric CO2. Conversely, from about 11.2 to 7.2 ka, the wind intensities were below their long-term mean and corresponded with decreasing atmospheric CO2. These observations are consistent with model inferences of enhanced SHW contributing to the long-term outgassing of CO2 from the Southern Ocean.

Tags: AMD, AMD/AU, CEOS, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS, EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > RADIOCARBON, EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS, EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY, FIELD SURVEYS, GEOGRAPHIC REGION > POLAR, HOLOCENE, LABORATORY, LAKE SEDIMENT CORERS, MACQUARIE ISLAND, OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND, PHANEROZOIC > CENOZOIC > QUATERNARY > HOLOCENE, Palaeo Start Date 0 ka, Palaeo Stop Date 11.7 ka, SEDIMENT CORERS, WESTERLY WINDS
Organization: Australian Ocean Data Network
The distribution and composition of mesopelagic fish assemblages in the Southern Ocean and their relation to major water masses

Fieldwork was undertaken on Voyage 7 of 1997/98 season (April/May 1998) aboard Aurora Australis. The plan was to repeat the transect sampled in September 1996 to investigate seasonal differences between Spring and Autumn. We anticipated being able to sample further south on this voyage because the ice would be at close to its minimum extent.
Sixteen stations were successfully sampled with the MIDOC multiple opening/closing net at 1000-750m, 750-500m, 500-250m and 250-0m depth ranges. The stations were at the following approximate positions: 47o14S:145o43E, 47o57S:145o14E, 49o54S:144o28E, 50o28S:144o15E, 51o15S:144o45E, 52o04S:144o24E, 52o59S:144o52E, 54o00S:145o01E, 53o59S:145o56E, 53o37S:144o32E, 57o00S:145o08E, 59o00S:144o56E, 58o12S:145o44E, 63o41S:139o03E, 64o17S:140o41E, 61o03S:139o40E.
It was originally intended to sample 18 stations, some of which during both day and night, for a total of 26 samples, but consistently bad weather and the necessity to divert to Davis to pick up helicopters prevented the full programme being completed.
However, data for the transect sampled in September of 1996 are available as a collection in the biodiversity database at the provided URL - MIDOC Fish catch from 1996/97 Voyage 1 WASTE (WOCE Antarctic Southern Transect Expedition).

Tags: AMD, AMD/AU, AMD/SCAR-MARBIN, ANTABIF, CEOS, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH, EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > WATER MASSES, FISH NETS, GEOGRAPHIC REGION > POLAR, MESOPELAGIC FISH, MIDWATER TRAWLS, MYCTOPHIDS, OBIS/SCAR-MARBIN, OCEAN > SOUTHERN OCEAN > Transect from Tasmania to Antarctica (vicinity Mertz Glacier), SHIPS
Organization: Australian Ocean Data Network
Aurora Australis Voyage 4 1991-92 Underway Data

This dataset contains the underway data from Voyage 4 1991-92 of the Aurora Australis. This was a non-marine science voyage that visited Mawson and Davis, departing from and returning to Hobart. Underway data have not been quality checked.

Tags: AMD, AMD/AU, CEOS, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS, EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE, ECHO SOUNDERS, GEOGRAPHIC REGION > POLAR, MARINE, OCEAN > SOUTHERN OCEAN, OCEANOGRAPHY, R/V AA > R/V Aurora Australis, SHIPS
Organization: Australian Ocean Data Network
Switching state space model for pygmy blue whale satellite tag derived locations

An R data file containing a hierarchical switching state-space model of pygmy blue whale Argos-collected telemetry data using the bsam package (see Jonsen (2016). Joint estimation over multiple individuals improves behavioural state inference from animal movement data. Scientific Reports 6: 20625.) in R. The model estimated location states for each individual at regular 3-h time intervals, accounting for measurement error in the irregularly observed Argos surface locations; and estimated the behavioural state associated with each location. Satellite tags were deployed on pygmy blue whales located in the Bonney Upwelling region, SA, between 7 January and 16 March 2015.
File can be opened in R  (A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL https://www.R-project.org/ ) using the code: readRDS('bw_3h_ssm.RDS')

Tags: AMD, AMD/AU, CEOS, Computer > Computer, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALE, EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABI, EARTH SCIENCE > CLIMATE INDICATORS > BIOSPHERIC INDICATORS > SPECIES MIGRATION, EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > UPWELLING/DOWNWELLING, GEOGRAPHIC REGION > POLAR, MODELS, OCEAN > INDIAN OCEAN, OCEAN > INDIAN OCEAN > BONNEY UPWELLING, OCEAN > INDIAN OCEAN > EASTERN INDIAN OCEAN, OCEAN > INDIAN OCEAN > GREAT SOUTHERN AUSTRALIAN COASTAL UPWELLING SYSTEM, SATELLITE TELEMETRY, SATELLITES
Organization: Australian Ocean Data Network
Environmental parameters (1955-2012) for echinoids distribution modelling on the Kerguelen Plateau

Environmental variables in the region of the Kerguelen Plateau compiled from different sources and provided in the ascii raster format. Mean surface and seafloor temperature, salinity and their respective amplitude data are available on the time coverage 1955-2012 and over five decades: 1955 to 1964, 1965 to 1974, 1975 to 1984, 1985 to 1994 and 1995 to 2012. N/A was set as the no data reference.
Future projections are provided for several parameters: they were modified after the Bio-ORACLE database (Tyberghein et al. 2012). They are based on three IPCC scenarii (B1, AIB, A2) for years 2100 and 2200 (IPCC, 4th report).

Tags: AMD, AMD/AU, CEOS, Computer > Computer, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ECHINODERMS, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY, ENVIRONMENTAL DESCRIPTORS, Environmental Modeling, FUTURE PROJECTIONS, GEOGRAPHIC REGION > POLAR, HISTORICAL OVERVIEW, KERGUELEN PLATEAU, OCEAN > INDIAN OCEAN > KERGUELEN ISLANDS, SOUTHERN OCEAN
Organization: Australian Ocean Data Network
Role of micronutrients in the sea ice microbial ecosystem

The productivity of Antarctic waters may be controlled by the amount of iron. Experiments have shown that this is probably the case for phytoplankton but as yet we do not know if iron limits the growth of sea ice algae. This study will assess whether iron limits sea ice algae production and will conduct experiments to work out how these algae use iron.
Measurements have been made to determine whether sea ice algae are limited by Fe.  Sea ice samples were taken and this spreadsheet refers to those ice cores
Columns A-G are self explanatory
Column G is the depth in the ice core from the bottom
Column H is the chlorophyll concentration in mg Chl m-2
Column I is the phaeophytin concentration in mg m-2
J is the total amount of protein in the sample ng m-2
K is the total amount of the protein flavodoxin ng m-2
L is the total amount of ferrodoxin ng m-2
These last two enable the Fe limitation status to calculated (not completed).

Tags: ALGAE, AMD, AMD/AU, CEOS, CHLOROPHYLL, DATE, DEPTH, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE, EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOMASS DYNAMICS, EARTH SCIENCE > BIOSPHERE > VEGETATION > CHLOROPHYLL, EARTH SCIENCE > CRYOSPHERE > SEA ICE, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC MATTER, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > TRACE ELEMENTS, FERRODOXIN, FLAVODOXIN, GEOGRAPHIC REGION > POLAR, IRON, LATITUDE, LONGITUDE, MICRONUTRIENTS, OCEAN > SOUTHERN OCEAN > Sea Ice, PHAEOPHYTIN, PROTEIN, SEA ICE, SHIPS, SOUTHERN OCEAN
Organization: Australian Ocean Data Network
Macroalgal responses to heavy metals and varying light levels at Casey Station



In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of macroalga Desmarestia menziesii, assessing adaptation to high light exposure after sea ice breakout, and impact of Thala Valley tip wastes.


In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of sediment diatom material assessing adaptation to high light exposure after sea ice breakout, and impact of Thala Valley tip wastes.


In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of sponge Latrunculia decipiens assessing adaptation to high light exposure after sea ice breakout.


Ecotoxicological experiments where Desmarestia menziesii was exposed to copper in indoor aquaria, aim to determine EC50, NOEC, LOEC for copper.


Field collections of various macroalgae for stable isotope analysis: for determination of physiological mechanisms.


Field collections of sponge and diatom material for pigment analysis.



Tags: AMD, AMD/AU, CEOS, CHLOROPHYLL, CONTINENT > ANTARCTICA > Casey, CONTINENT > ANTARCTICA > Newcomb Bay, CONTINENT > ANTARCTICA > Shirley Island, CONTINENT > ANTARCTICA > Sparkes Bay, COPPER (CU), EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MACROALGAE (SEAWEEDS), EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS, EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOTOXICOLOGY > TOXICITY LEVELS, EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > EVOLUTIONARY ADA, EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC, EARTH SCIENCE > BIOSPHERE > VEGETATION > CHLOROPHYLL, EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS, EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > HEAVY METALS CONCENTRATION, FIELD SURVEYS, GEOGRAPHIC REGION > POLAR, HEAVY METALS, MACROALGAE, PAM > PORTABLE FLUORESCENCE ANALYZERS, PAM FLUOROMETRY, PAR, PULSE AMPLITUDE MODULATED FLUOROMETRY, SEA ICE BREAKOUT
Organization: Australian Ocean Data Network
Amery Ice Shelf - hot water drill borehole, AM01 Brancker thermistor data - 2011/2012 data

AM01 borehole drilled January 2002.
AM01b borehole drilled mid-December 2003.
No new thermistor strings deployed.
Consult Readme file for detail of data files and formats.
2011-2012 data may be final data from the unit owing to battery failure.
The original project for this dataset was ASAC 1164, but recent data fall under the auspices of project AAS 4096.

Tags: ACE/CRC, AMD, AMD/AU, AMERY ICE SHELF, AMISOR, CEOS, CONTINENT > ANTARCTICA, EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE, EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT COMPOSITION, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENTATION, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > STRATIGRAPHIC SEQUENCE, EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > THERMOCLINE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY, FIELD INVESTIGATION, GEOGRAPHIC REGION > POLAR, GROUND-BASED OBSERVATIONS, HOT WATER DRILL, OCEAN > SOUTHERN OCEAN, TEMPERATURE
Organization: Australian Ocean Data Network
Southern Ocean CTD data collected from the CEAMARC cruise of the Aurora Australis, 2007-2008

Oceanographic measurements were conducted on and around the Antarctic shelf in the vicinity of the Mertz Glacier during the southern summer of 2007/2008, on Aurora Australis voyage au0803, V3 2007/2008. Data were collected as part of the CASO (oceanography) and CEAMARC (fishing) programs. The CASO program included occupation of the southern portion of the SR3 transect, plus additional transects down the slope.  A total of (130) CTD vertical profile stations were taken, most to within 15 m of the bottom. Over (1400) Niskin bottle water samples were collected for the measurement of salinity, dissolved oxygen, nutrients, CFCs, dissolved inorganic carbon, alkalinity, oxygen-18, germanium, and biological parameters, using a 24 bottle rosette sampler. Full depth current profiles were collected by a lowered acoustic Doppler profiler (LADCP) attached to the rosette package, while near surface current data were collected by a ship mounted ADCP. Additional CTD profiles were taken at 2 subantarctic sites on the transit south. An array of 4 current meter and thermosalinograph moorings were deployed across a basin outflowing from the Mertz Polynya region.

Tags: ACE/CRC, ADCP > Acoustic Doppler Current Profiler, AMD, AMD/AU, CEOS, CTD > Conductivity, Temperature, Depth, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE, EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS, EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE, EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY, GEOGRAPHIC REGION > POLAR, OCEAN > SOUTHERN OCEAN, OXYGEN ANALYZERS, R/V AA > R/V Aurora Australis, SALINOMETERS, SHIPS
Organization: Australian Ocean Data Network
Iron content of Southern Ocean phytoplankton: implications for carbon transfer to the deep sea

Metadata record for data from ASAC Project 2297: Iron content of Southern Ocean phytoplankton: implications for carbon transfer to the deep sea.
Data on size-fractionated distribution of suspended trace elements (including iron) in marine particles taken from the surface Southern Ocean south of Australia.  Data for 4 size-fractions at 4 stations along ~142 degrees E are included.
Explanation of codes used in the dataset:
The isotope of the element of interest is listed down column A.  LR refers to low resolution and MR medium resolution (that is the resolution of the ICPMS analytical instrument).  So Mn55(LR) is the manganese isotope 55 ran in low resolution.
SFP1_2um_B2_1:
SFP=size-fractionated particles
1=station 1
2um=2micron filter size
B2=blank 2
1=replicate 1
RSD%=relative standard deviation in %
Blank=field blank
Blk/sample%=blank-to-sample ratio in %
CRMs_261102=certified reference materials (ran on 26 Nov 2002)
Scaled up=previous column times multiplication factor (a serial dilution was used)
Blk=blank subtracted
certified=the value certified by the manufacturer of the reference material
SLRS_1in25_1= the CRM 'SLRS', ran with a 1 in 25 dilution factor, replicate 1
DigBlk1_1=digestion blank 1, replicate 1
See the link below for public details on this project.

Tags: ACE/CRC, AMD, AMD/AU, CARBON, CARBON TRANSFER, CEOS, CLIVAR > Climate Variability, EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > BIOGEOCHEMICAL CYCLES, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > TRACE ELEMENTS, GEOGRAPHIC REGION > POLAR, IRON, OCEAN > SOUTHERN OCEAN, OCEAN > SOUTHERN OCEAN > CLIVAR SR3 TRANSECT 142E MERIDIAN, PARTICLES, R/V AA > R/V Aurora Australis, SHIPS, SOUTHERN OCEAN, TRACE ELEMENTS, VERTICAL LOCATION > SEA SURFACE
Organization: Australian Ocean Data Network
Coastal exposure index of sea ice in Antarctica

This is a simple index which looks at the 360x1-degree longitudinal wedges around the Antarctic continent to see if there is any sea ice (where sea ice concentration is greater than 15%) to the north of the continent in each of these wedges. 
The index goes from 0 (sea ice to the north off the continent in every longitude wedge) to 360 (no sea ice around the continent at all.
Notes about the spreadsheet:
"-" means no data. Satellite data was not available for those years.
Otherwise the index goes from 0 through to 360. 
- Zero means that there is no longitude around the continent where there is coastal exposure.
- 18 (for example) means that there are 18 longitudinal wedges around the continent with coastal exposure.
This project used the following NASA data to develop the coastal exposure index:
Cavalieri, D. J., C. L. Parkinson, P. Gloersen, and H. J. Zwally. 1996, updated yearly. Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1. [1979-2015]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: http://dx.doi.org/10.5067/8GQ8LZQVL0VL. [2016-05-30]

Tags: ACE/CRC, AMD, AMD/AU, CEOS, Coastal Exposure, Computer > Computer, EARTH SCIENCE > CRYOSPHERE > SEA ICE > SEA ICE CONCENTRATION > ICE FRACTION, EARTH SCIENCE > OCEANS > SEA ICE > SEA ICE CONCENTRATION, GEOGRAPHIC REGION > POLAR, GEOGRAPHIC REGION > SOUTHERN HEMISPHERE, Nimbus-7, Sea Ice
Organization: Australian Ocean Data Network
Amery Ice Shelf - hot water drill borehole, AM03 Brancker thermistor data - 2011/2012 data

AM03 borehole drilled December 2005.
Consult Readme file for detail of data files and formats.
2011-2012 data may be final data from the unit owing to battery failure.
The original project for this dataset was ASAC 1164, but recent data fall under the auspices of project AAS 4096.

Tags: ACE/CRC, AMD, AMD/AU, AMERY ICE SHELF, AMISOR, CEOS, CONTINENT > ANTARCTICA, EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE, EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT COMPOSITION, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENTATION, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > STRATIGRAPHIC SEQUENCE, EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > THERMOCLINE, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY, EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY, FIELD INVESTIGATION, GEOGRAPHIC REGION > POLAR, GROUND-BASED OBSERVATIONS, HOT WATER DRILL, OCEAN > SOUTHERN OCEAN, TEMPERATURE, Thermistors
Organization: Australian Ocean Data Network
Boundary layer profiles during melting of the sloping ice shelves

Direct Numerical Simulation (DNS) was used to study the effect of sloping the ice-shelves on the dissolution/melt rate at the ice-ocean interface. The simulations were done on the HPC Raijin at NCI, Canberra over March 2015 to June 2017. 
Numerical experiments were carried out over a range of slope angle (5 degrees – 90 degrees) of the ice-shelves measured from the horizon. Turbulent flow field is simulated over the domain length of 1.8 m, (for slope angle greater than or equal to 50 degrees) and 20 m (for slope angle less than or equal to 20 degrees) respectively; the flow-field is laminar otherwise. A constant ambient temperature 2.3 degrees C and salinity 35 psu is maintained throughout the simulations.
The DNS successfully resolved all possible turbulence length scales and relative contributions of diffusive and turbulent heat transfer into the ice wall is measured.
Data available:
Excel file Profile_salinity_temperature_velocity.xlsx contains along-slope velocity, temperature and salinity as a function of wall normal distance for slope angle 50 degrees, 65 degrees and 90 degrees respectively for the domain length 1.8 m.

Tags: AMD, AMD/AU, CEOS, CONTINENT > ANTARCTICA, Computer > Computer, DIRECT NUMERICAL SIMULATION, DNS, EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS, EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS > ICE SHEET MEASUREMENTS, EARTH SCIENCE > CRYOSPHERE > SEA ICE > SALINITY, EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE, GEOGRAPHIC REGION > POLAR, ICE SHELF, MODELS, OCEAN > SOUTHERN OCEAN, SLOPE ANGLE, SLOPING
Organization: Australian Ocean Data Network
The role of Antarctic marine protists in trophodynamics and global change and the impact of UV-B on these organisms - Voyage VMS, Aurora Australis 2010/2011 samples

Dataset contains chlorophyll a data collected for ASAC project 40 on voyage "VMS" of the Aurora Australis in the 2010/2011 season.  Samples were collected between January and February of 2011.
Public Summary from the project:
This program aims to determine the role of single celled plants, animals, bacteria and viruses in Antarctic waters. We quantify their vital role as food for other organisms, their potential influence in moderating global climate change through absorption of CO2 and production of DMS, and determine their response to effect of climate change.
For more information, see the other metadata records related to ASAC project 40 (ASAC_40).

Tags: AMD, AMD/AU, CAROTENOIDS, CEAMARC, CEOS, CHEMTAX, CHLOROPHYLL, CTD > Conductivity, Temperature, Depth, DATE, DEPTH, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS, EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL, FLOW, FLUOROMETERS, GEOGRAPHIC REGION > POLAR, HPLC, ICE, LATITUDE, LONGITUDE, LUGOLS, MARINE BIOLOGY, NISKIN BOTTLES, OCEAN > SOUTHERN OCEAN, PHYTOPLANKTON, PLANKTON NET SAMPLE, PROTISTS, R/V AA > R/V Aurora Australis, SHIPS, TIME, TUBE LABEL, VOYAGE, WATER TEMPERATURE
Organization: Australian Ocean Data Network