Metadata details
SIPEX_II_CO2_Flux
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Nomura, D. (2017) Atmospheric carbon dioxide (CO2) concentrations for CO2 flux, Ver. 1, Australian Antarctic Data Centre - doi:10.4225/15/59b0e233195e3, Accessed: 2026-05-17
- Title
- Atmospheric carbon dioxide (CO2) concentrations for CO2 flux
- Data Centre
- Australian Antarctic Data Centre, Australia
- DOI
- doi:10.4225/15/59b0e233195e3
- Created Date
- 2014-09-23
- Revision Date
- 2017-09-07
- Parent record
- SIPEX_II
Datasets and documents
Related links
Description
During the ice stations, measurements of the air CO2, concentration for CO2 flux between sea ice and atmosphere were made with the chamber technique. Air-sea ice CO2 fluxes were measured over the sea ice with semi-automated chambers. Sample air from the chamber is passed through Teflon tubes connected to non-dispersive infrared (NDIR) analyzer (Model 800, LICOR Inc., USA) that was connected to a system controller and data logger (Model 10x, Campbell Scientific Inc., USA), that controls the opening/closing of the chambers as well. During the observation period, the CO2 flux was measured under three different conditions or surface types: (1) a chamber was installed above snow; (2) over the bare ice after removing the snow; (3) slush layer after removing the snow and slush crystals. The CO2 concentration in the chamber was measured every 5 s during experiments lasting 20 minutes for each chamber. A one hour cycle of measurements therefore consist of three 20 minute periods from each chamber (i.e. surface type).
Data available: excel files containing sampling station name for each spreadsheet, dates, sampling time and air CO2 concentration as output voltage from NDIR (to indicated as ppm we need to calculate, but, not yet done this process) in the air and chamber for CO2 flux measurement.
Also see the record - SIPEX_II_Gas_Flux
Quality
There were no problems with data collection. The data quality are good.
Access
These data are publicly available for download from the provided URL.
Temporal Coverages
- Start date: 2012-09-26 - Stop date: 2012-10-22
Spatial Coverages
Science Keywords
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE
Additional Keywords
- SIPEX II
- CO2 Flux
Locations
- CONTINENT > ANTARCTICA
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Platforms
- SHIPS
- R/V Aurora Australis
Instruments
- CO2 ANALYZERS
- Infrared Carbon Dioxide Analyzer
- Nondispersive Infrared Gas Analyzer
Researchers
- nomura, daiki (INVESTIGATOR,TECHNICAL CONTACT)
- connell, dave (DIF AUTHOR)
Use 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 athttp://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II_CO2_Flux when using these data.
