TemperateReefBase Geonetwork Catalogue
Nella Dan: AAMBER Cruise - Oceanography data
This dataset contains CTD (conductivity, temperature, depth) data obtained from the Australian Antarctic Marine Biological Ecosystem Research (AAMBER) 86/87 cruise of the Nella Dan, during Feb - Apr 1987. This cruise is the last out of a series of six, conducting a long term field survey on krill, fish and zooplankton. 94 CTD casts were taken in the Prydz Bay region, as a supplement to the krill and fish research program. Casts were made to the bottom over the continental shelf, and to either 200 m or 1000 m off the shelf. This dataset is a subset of the whole cruise data.
The fields in this dataset are:
Pressure
Temperature
Sigma-T
Salinity
Geopotential Anomaly
Specific volume Anomaly
samples
deviation
conduction
Simple
Identification info
- Alternate title
- Nella Dan: AAMBER Cruise - Oceanography data
- Date (Publication)
- 2013-08-14
- Edition
- 1
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
- Oceans
Extent
N
S
E
W
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1987-02-15 1987-03-23
- NASA/GCMD Earth Science Keywords
-
- 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 > WATER DEPTH
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE
- Keywords
-
- CONDUCTION
- DEVIATION
- GEOPOTENTIAL ANOMALY
- MARINE
- OCEANOGRAPHY
- PRESSURE
- SALINITY
- SAMPLES
- SIGMA-T
- SPECIFIC VOLUME ANOMALY
- TEMPERATURE
- 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
- Data are 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=AAMBER_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
- OnLine resource
-
GET DATA
Download page for Australian Antarctic Data Centre
- OnLine resource
-
VIEW RELATED INFORMATION
Marine Science Data Search
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Some problems were experienced with the conductivity cell freezing, and after March 3rd, 1987 only temperature profiles could be taken. Oceanography measurements were taken where possible, which was not always at ideal locations. Therefore coverage of the area is not necessarily complete. 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 #1103) 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. 94 CTD stations were taken. Ship-board processing: 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, de-spiked 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. 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, so sampling location and depth were not necessarily selected according to oceanographic related considerations.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2014-09-11 - record updated by Dave Connell.
Metadata
- Metadata identifier
- string/AAMBER_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
- 1fee3ced-751d-4c18-8771-d69266cdb9b6
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-30T03:57:35
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/AAMBER_ocean
Point of truth for the metadata record
- Date info (Creation)
- 1999-10-07T00:00:00
- Date info (Last Update)
- 2017-04-26
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