c912b420-66fc-4724-ae9a-c452fca9e09c urn:uuid Earth Sciences New Zealand dan.smale@earthsciences.nz 2026-03-18T22:26:24.638Z 2023-09-19T03:06:17 ISO 19115-1 2018 https://antcat.antarcticanz.govt.nz/geonetwork/srv/eng/catalog.search#/metadata/c912b420-66fc-4724-ae9a-c452fca9e09c In Situ Flask and Cylinder Air Sampling: Greenhouse Gases and Isotopes, Antarctica, 1989-Present 2023-08-14T17:12:25 2023-08-14T17:13:37 Gas samples (CO2, CH4, CO, N2O, 13CO2, 14CH4, 13CO, C18O, 14CO) are collected from an inlet atop of a mast 5 metres above ground level in North sector wind conditions. Flasks and cylinders are analysed back at NIWA Greta point Gaslab. The sampling was established in November 1989. Samples are only taken when wind is from the Northerly sector and above 5kts. High pressure cylinders: ~1600psi in 30 litre cylinders and low-pressure flask samples taken (~5 litres, 25 psi in 2 litre flask). Air samples in the Cylinders & Flasks shipped to New Zealand regularly. Analysis performed at NIWA's GASLAB located at Greta Point Wellington. Analysis by Gas chromatography (GC) and isotope ratio mass spectrometry (IRMS). A semi-automated flask sampling system was installed in February 2017, allowing extra flask samples with minimal operator intervention. Instrument coordinates (-77.83, 166.67) GET DATA: g.brailsford@earthsciences.nz Brailsford, G. g.brailsford@earthsciences.nz ORCid Smale, D. dan.smale@earthsciences.nz ORCid Earth Sciences New Zealand climatologyMeteorologyAtmosphere 166.3168 167.1826 -77.9203 -77.7584 -77.83000000000001 166.67 1989-11-21T00:00:00 2023-08-09T12:46:56 https://antcat.antarcticanz.govt.nz:/geonetwork/srv/api/records/c912b420-66fc-4724-ae9a-c452fca9e09c/attachments/K085_InSituFlask.png INSTALLATION K085A ANTARCTICA ROSS ISLAND GCMD Locations Keywords 2023-06-30 geonetwork.thesaurus.external.place.ardc-curated_gcmd-locations_15-2-2023-01-03 GCMD Locations Keywords https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/locations locations https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/locations GROUND STATIONS GCMD Platform/Sources Keywords 2023-06-30 geonetwork.thesaurus.external.platform.ardc-curated_gcmd-platforms_15-2-2023-01-03 GCMD Platform/Sources Keywords https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms platforms https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms FLASKS GCMD Instrument/Sensors Keywords 2023-06-30 geonetwork.thesaurus.external.instrument.ardc-curated_gcmd-instruments_15-2-2023-01-05(1) GCMD Instrument/Sensors Keywords https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments instruments https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments ATMOSPHERIC CARBON MONOXIDE CARBON DIOXIDE CARBON MONOXIDE METHANE TRACE GASES/TRACE SPECIES NITROUS OXIDE GCMD Earth Science and Earth Science Services Keywords 2023-06-30 geonetwork.thesaurus.external.theme.ardc-curated_gcmd-sciencekeywords_15-2-2023-01-12 GCMD Earth Science and Earth Science Services Keywords https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords sciencekeywords https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords This data set conforms to the CC BY-NC Attribution License (https://creativecommons.org/licenses/by-nc/4.0/) Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/ https Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Human Readable Summary of CC BY-NC. Creative Commons Attribution Non-Commercial This data set conforms to the CC BY-NC Attribution License (https://creativecommons.org/licenses/by-nc/4.0/) Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/ https Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Human Readable Summary of CC BY-NC. Creative Commons Attribution Non-Commercial