TemperateReefBase Geonetwork Catalogue
Gas flux over sea ice and calcium carbonate concentration in sea ice from the SIPEX II voyage of the Aurora Australis
Gas Flux over Sea Ice
-------------
We observed amount of gas exchange between sea ice and atmosphere. At the ice station, semi-automated chambers developed in Japan, were used for measurement of air-sea ice CO2 flux. These chambers could be used to examine spatial variability and also temporal variability of gas flux over sea ice. Samples were also taken from the snow and ice in order to measure CH4 and VOC, however these analyses will be conducted post-voyage. This metadata record will be updated in future to reflect the analysis.
The chambers are designed to be placed over a snow and sea ice. When the lid is closed, CO2 concentration was measured. The opening and closing functions of the chambers are automated and were set to a 30 minutes interval. CO2 concentration (as voltage) were recorded in the data logger (CR10X, Campbell Scientific Inc.) and downloaded after the experiments. Raw data are contained in the excel files.
During the CO2 flux measurement, we collected the snow, sea ice, brine/slush and under-ice water. Snow and sea ice samples were melted after sampling in PVDF film bags (like Tedlar bags in order to avoid gas exchange with ambient air) in 4C temperature and treated for analysis.
A chemical analysis for carbonate systems and VOC (water), salinity, nutrient, pigment and oxygen isotopic ratio samples will take place in Japan after the voyage for analysis.
During the cruise, to examine ice growth processes, we made sea ice thin-section to classify the ice cores into granular ice, columnar ice or mixed granular and columnar ice (Eicken and Lange, 1989).
The CO2 data are contained in Excel spreadsheets. These use Japanese column headings.
Calcium Carbonate (CACO3.6H20) as Ikaite in Sea Ice and Snow
-----------
At each listed ice station we collected sea-ice cores using a Kovacs 9cm ice corer. Cores were sectioned into 10-20cm and melted at 4 degrees C, filtered and dried for later analysis of Calcium Carbonate in a home laboratory using an ICP, which produces text file outputs (included).
Also included is a spreadsheet listing the cores, and the calcium carbonate measurements.
Simple
Identification info
- Alternate title
- Gas flux over sea ice and calcium carbonate concentration in sea ice from the SIPEX II voyage of the Aurora Australis
- Date (Publication)
- 2017-09-04
- 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:10.4225/15/59acaf89a07b4
Originator
Publisher
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Environment
- Oceans
Extent
))
))
))
))
))
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2012-09-28 2012-10-29
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > CRYOSPHERE > SEA ICE
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
- Keywords
-
- SIPEX
- Gas Flux
- CO2 Flux
- NASA/GCMD Earth Science Keywords
-
- R/V AA > R/V Aurora Australis
- NASA/GCMD Earth Science Keywords
-
- AMD
- AMD/AU
- CEOS
- ACE/CRC
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- CONTINENT > ANTARCTICA
- 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=SIPEX_II_Gas_Flux when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2017-09-04T00:00:00
- Units of distribution
- MB
- Transfer size
- 12.9
- Distribution format
-
- Excel
- OnLine resource
-
GET DATA
Download point for the data
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 4073
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2013-01-09 - record created by Dave Connell. 2017-09-04 - record updated by Dave Connell to publicly release the data.
Metadata
- Metadata identifier
- string/SIPEX_II_Gas_Flux
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
- Title
- Parent Metadata Record
- Citation identifier
- SIPEX_II
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- f80a29b1-4e3f-4b15-8519-4880de0a0110
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-30T03:23:03
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/SIPEX_II_Gas_Flux
Point of truth for the metadata record
- Date info (Creation)
- 2013-01-09T00:00:00
- Date info (Last Update)
- 2017-09-04
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
Provided by
