TemperateReefBase Geonetwork Catalogue
Nella Dan: SIBEX II Cruise - Oceanographic and nutrient data
This dataset contains CTD (conductivity, temperature, depth) and nutrient (nitrate, nitrite (insignificant concentrations), phosphate, silicate) data obtained from the Second International BIOMASS Experiment (SIBEX II) cruise of the Nella Dan, during January 1985. This cruise is the fourth in a series of six cruises, conducting a long term field survey on krill and other zooplankton. 64 CTD casts were taken in the Prydz Bay region, and nutrient data were collected at 44 of the stations. Casts were made to 1000 m or to near bottom if shallower. Oceanographic and nutrient sampling was done a supplement to the krill research program, and therefore was not always ideal for oceanographic purposes.
The fields in this dataset are:
cruise name
station number
date
start time
ship name
station position
cast depth
sea bottom depth
Depth
Nitrate
Nitrite
Phosphate
Silicate
Manganese (Mn)
Pressure
Temperature
Salinity
Sigma-T
Specific Volume Anomaly
Geopotential Anomaly
Number of samples
Temperature Deviation
Conductivity Deviation
This dataset was updated by Angela McGaffin to include a summary excel file. This download file also contains the original datasets.
Simple
Identification info
- Alternate title
- Nella Dan: SIBEX II Cruise - Oceanographic and nutrient data
- Date (Publication)
- 2012-06-08
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.26179/5d26d6e3ba624
Originator
Reeve, J.
Publisher
Australian Antarctic Data Centre
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
- Topic category
-
- Climatology, meteorology, atmosphere
- Elevation
- Geoscientific information
- Oceans
Extent
N
S
E
W
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1985-01-03 1985-01-26
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS
- 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 > ATMOSPHERE > PRECIPITATION > LIQUID PRECIPITATION > RAIN
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
- EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
- Keywords
-
- CAST DEPTH
- CONDUCTIVITY DEVIATION
- CRUISE NAME
- DATE
- DEPTH
- GEOPOTENTIAL ANOMALY
- MANGANESE (MN)
- MARINE
- NITRATE
- NITRITE
- NUMBER OF SAMPLES
- OCEANOGRAPHY
- PHOSPHATE
- SIGMA-T
- SALINITY
- SEA BOTTOM DEPTH
- PRESSURE
- SHIP NAME
- SILICATE
- START TIME
- SPECIFIC VOLUME ANOMALY
- STATION POSITION
- TEMPERATURE
- STATION NUMBER
- TEMPERATURE DEVIATION
- NASA/GCMD Earth Science Keywords
-
- CTD > Conductivity, Temperature, Depth
- NISKIN BOTTLES
- NASA/GCMD Earth Science Keywords
-
- SHIPS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIBEX_II_ocean when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Distributor
- Fees
- Free
- Planned available datetime
- 2012-06-08T00:00:00
- Units of distribution
- kb
- Transfer size
- 498
- Distribution format
-
- Excel, text, word
- OnLine resource
-
GET DATA
Download page for Australian Antarctic Data Centre
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Oceanography and nutrient measurements were taken where possible, which was not always at ideal locations. Therefore coverage of the area is not necessarily complete. Nutrient data were only recorded at 44 out of the 64 CTD stations. This cruise is however part of a series of 6 cruises which operated in this area, providing data from varying seasons and condition. Data collection: A Neil Brown Mark III CTD (conductivity, temperature, depth probe #2941) system attached to a rosette water sampler (General Oceanics) was used for collecting continuous vertical profiles of conductivity and temperature. Water samples were collected at different depths using the rosette water sampler with 5L Niskin bottles. Measurements were made on the downcast, and water samples collected on the upcast. The water sampling depths were determined depending on the readings made during the downcast. The CTD was lowered at a rate as close to 1 m/sec, and raised between samples at speeds between 1 and 2 m/sec. Conductivity and temperature readings were also made at each water sampling station. 64 CTD stations were taken along a series of transects. Nutrient samples were taken at 44 of the CTD stations. Ship-board processing: 250 mL water sub-samples were filtered through GF/F glass fibre filters, transferred to rinsed polyethylene bottles and immediately frozen. Water samples were analysed on board the ship for salinity and oxygen. Post-ship processing: Oceanography data - Data was initially recorded on audio cassettes, but later replayed to produce digital nine-track magnetic tapes by a PDP 11/23. Data tapes were then processed on a VAX 11/750. For each CTD downcast, an uncalibrated, despiked file was generated, using a recursive filter to compensate for sensor mismatch. The data files were used to generate 2 dbar averages for in situ temperature, salinity, sigma-t, specific volume anomaly and geopotential anomaly. The averages were centred on even, integral depths, and were only calculated when averages contained eight or more valid data points. The temperature and conductivity means were calculated for the interval, and the salinity calculated for the mid point of the pressure interval from the temperature and salinity means. Data processing software was supplied by CSIRO Division of Oceanography. Nutrient data - Analyses was completed by the Australian Government Analytical Laboratories for nitrate, nitrite, silicate, chlorophyll a and other pigments. Nitrite concentrations were found to be insignificant. The complete dataset is logically consistent, as krill and zooplankton hauls and phytoplankton pigment analysis were also obtained at the same sampling sites as the oceanographic and nutrient data. The cruise track was established before the experiment in order to eliminate bias. The oceanographic sampling was done as a supplement to the krill research program and the nutrient sampling to help interpret phytoplankton distribution and abundance, so sampling location and depth were not necessarily selected according to oceanographic or nutrient related considerations.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2012-06-08 - record updated by Dave Connell to include the re-worked datasets produced by Angela McGaffin. 2019-07-11 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/SIBEX_II_ocean
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Australian Antarctic Division
Owner
AADC
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 211d1c20-ff91-4e4f-879b-107c75b1320a
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2019-07-11T16:24:51
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/SIBEX_II_ocean
Point of truth for the metadata record
- Date info (Creation)
- 1999-10-07T00:00:00
- Date info (Last Update)
- 2019-07-11
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available