Atmospheric carbon dioxide (CO2) concentrations for CO2 flux

There were no problems with data collection. The data quality are good. 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 cham...

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Bibliographic Details
Other Authors: AADC (originator), AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider)
Format: Dataset
Language:unknown
Published: Australian Ocean Data Network
Subjects:
climatologyMeteorologyAtmosphere
oceans
CARBON DIOXIDE
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC CHEMISTRY
CARBON AND HYDROCARBON COMPOUNDS
SIPEX II
CO2 Flux
CO2 ANALYZERS
IR CO2 ANALYZER &gt
Infrared Carbon Dioxide Analyzer
NDIR GAS ANALYZER &gt
Nondispersive Infrared Gas Analyzer
SHIPS
R/V AA &gt
R/V Aurora Australis
AMD
AMD/AU
CEOS
ACE/CRC
CONTINENT &gt
ANTARCTICA
OCEAN &gt
SOUTHERN OCEAN
GEOGRAPHIC REGION &gt
POLAR
Southern Ocean
Antarc*
Antarctica
aurora australis
Sea ice
Online Access:https://researchdata.ands.org.au/atmospheric-carbon-dioxide-co2-flux/685429
https://data.aad.gov.au/metadata/records/SIPEX_II_CO2_Flux
https://data.aad.gov.au/eds/3963/download
https://data.aad.gov.au/metadata/records/SIPEX_II_Gas_Flux
https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=4073
http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II_CO2_Flux
Description
Summary:There were no problems with data collection. The data quality are good. 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

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