Data

Atmospheric carbon dioxide (CO2) concentrations for CO2 flux

Australian Ocean Data Network
Nomura, D. ; NOMURA, DAIKI
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/records/SIPEX_II_CO2_Flux&rft.title=Atmospheric carbon dioxide (CO2) concentrations for CO2 flux&rft.identifier=http://data.aad.gov.au/metadata/records/SIPEX_II_CO2_Flux&rft.publisher=Australian Antarctic Data Centre&rft.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_FluxProgress Code: completedStatement: There were no problems with data collection. The data quality are good.&rft.creator=Nomura, D. &rft.creator=NOMURA, DAIKI &rft.date=2014&rft.coverage=westlimit=118.65; southlimit=-65.22; eastlimit=120.19; northlimit=-64.45&rft.coverage=westlimit=118.65; southlimit=-65.22; eastlimit=120.19; northlimit=-64.45&rft_rights=This metadata record is publicly available.&rft_rights=These data are publicly available for download from the provided URL.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=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. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=oceans&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE&rft_subject=SIPEX II&rft_subject=CO2 Flux&rft_subject=CO2 ANALYZERS&rft_subject=IR CO2 ANALYZER > Infrared Carbon Dioxide Analyzer&rft_subject=NDIR GAS ANALYZER > Nondispersive Infrared Gas Analyzer&rft_subject=SHIPS&rft_subject=R/V AA > R/V Aurora Australis&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=ACE/CRC&rft_subject=CONTINENT > ANTARCTICA&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License
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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.
http://creativecommons.org/licenses/by/4.0/).

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This metadata record is publicly available.

These data are publicly available for download from the provided URL.

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Brief 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

Lineage

Progress Code: completed
Statement: There were no problems with data collection. The data quality are good.

Data time period: 2012-09-26 to 2012-10-22

This dataset is part of a larger collection

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120.19,-64.45 120.19,-65.22 118.65,-65.22 118.65,-64.45 120.19,-64.45

119.42,-64.835

text: westlimit=118.65; southlimit=-65.22; eastlimit=120.19; northlimit=-64.45

Subjects
ACE/CRC | AMD | AMD/AU | CEOS | CO2 ANALYZERS | CO2 Flux | CONTINENT > ANTARCTICA | EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE | GEOGRAPHIC REGION > POLAR | IR CO2 ANALYZER > Infrared Carbon Dioxide Analyzer | NDIR GAS ANALYZER > Nondispersive Infrared Gas Analyzer | OCEAN > SOUTHERN OCEAN | R/V AA > R/V Aurora Australis | SHIPS | SIPEX II | climatologyMeteorologyAtmosphere | oceans |

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Other Information
See the metadata record for the Gas Flux data (EXTENDED METADATA)

uri : https://data.aad.gov.au/metadata/records/SIPEX_II_Gas_Flux

Download point for the data (GET DATA)

uri : https://data.aad.gov.au/eds/3963/download

Identifiers
  • global : SIPEX_II_CO2_Flux
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