H2 in firn air from Megadunes, Antarctica ...
This dataset contains two items: 1) firn air measurements of H2 from Megadunes, Antarctica. 2) atmospheric surface flask air measurements of H2 from NOAA GML, CSIRO, and AGAGE from 1991-2003 adjusted to a common calibration scale. Firn air was sampled at the Megadunes site in central Antarctica (80....
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Online Access: | https://dx.doi.org/10.7280/d18698 https://datadryad.org/stash/dataset/doi:10.7280/D18698 |
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ftdatacite:10.7280/d18698 2024-02-04T09:56:03+01:00 H2 in firn air from Megadunes, Antarctica ... Saltzman, Eric 2021 https://dx.doi.org/10.7280/d18698 https://datadryad.org/stash/dataset/doi:10.7280/D18698 en eng Dryad https://dx.doi.org/10.1073/pnas.2103335118 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 Atmospheric chemistry Dataset dataset 2021 ftdatacite https://doi.org/10.7280/d1869810.1073/pnas.2103335118 2024-01-05T04:51:50Z This dataset contains two items: 1) firn air measurements of H2 from Megadunes, Antarctica. 2) atmospheric surface flask air measurements of H2 from NOAA GML, CSIRO, and AGAGE from 1991-2003 adjusted to a common calibration scale. Firn air was sampled at the Megadunes site in central Antarctica (80.78 °S, 124.49 °E, Alt: 2,283 m) Antarctica during January of 2004. A 3” diameter hole was bored to a depth of 70 m using an ice core drill. Drilling was paused at 15 unique depths so that firn air could be sampled. The sampling method was similar to techniques from previous published firn air studies. The hole was sealed above each sampling depth with an inflatable rubber packer to prevent contamination from the modern atmosphere. A waste air intake was positioned directly below the rubber packer. The waste air intake was separated from the sample air intake by a stainless-steel baffle with a 2 ¾” diameter. Air was pumped from the waste air intake 3x faster than from the sample air intake to ensure that no air ... : The firn air samples were analyzed for H2 at NOAA/GML using gas chromatography with a mercuric oxide reduction gas analyzer (HgO-RGA). Relative measurement uncertainty is estimated at ±2%. The H2 measurements are reported as dry air mole fraction (ppb=nmol H2 mol-1 air). The measurements were corrected for calibration drift, detector non-linearity, and gravitational fractionation. ... Dataset Antarc* Antarctica ice core DataCite Metadata Store (German National Library of Science and Technology) Baffle ENVELOPE(-67.083,-67.083,-68.200,-68.200) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Atmospheric chemistry |
spellingShingle |
Atmospheric chemistry Saltzman, Eric H2 in firn air from Megadunes, Antarctica ... |
topic_facet |
Atmospheric chemistry |
description |
This dataset contains two items: 1) firn air measurements of H2 from Megadunes, Antarctica. 2) atmospheric surface flask air measurements of H2 from NOAA GML, CSIRO, and AGAGE from 1991-2003 adjusted to a common calibration scale. Firn air was sampled at the Megadunes site in central Antarctica (80.78 °S, 124.49 °E, Alt: 2,283 m) Antarctica during January of 2004. A 3” diameter hole was bored to a depth of 70 m using an ice core drill. Drilling was paused at 15 unique depths so that firn air could be sampled. The sampling method was similar to techniques from previous published firn air studies. The hole was sealed above each sampling depth with an inflatable rubber packer to prevent contamination from the modern atmosphere. A waste air intake was positioned directly below the rubber packer. The waste air intake was separated from the sample air intake by a stainless-steel baffle with a 2 ¾” diameter. Air was pumped from the waste air intake 3x faster than from the sample air intake to ensure that no air ... : The firn air samples were analyzed for H2 at NOAA/GML using gas chromatography with a mercuric oxide reduction gas analyzer (HgO-RGA). Relative measurement uncertainty is estimated at ±2%. The H2 measurements are reported as dry air mole fraction (ppb=nmol H2 mol-1 air). The measurements were corrected for calibration drift, detector non-linearity, and gravitational fractionation. ... |
format |
Dataset |
author |
Saltzman, Eric |
author_facet |
Saltzman, Eric |
author_sort |
Saltzman, Eric |
title |
H2 in firn air from Megadunes, Antarctica ... |
title_short |
H2 in firn air from Megadunes, Antarctica ... |
title_full |
H2 in firn air from Megadunes, Antarctica ... |
title_fullStr |
H2 in firn air from Megadunes, Antarctica ... |
title_full_unstemmed |
H2 in firn air from Megadunes, Antarctica ... |
title_sort |
h2 in firn air from megadunes, antarctica ... |
publisher |
Dryad |
publishDate |
2021 |
url |
https://dx.doi.org/10.7280/d18698 https://datadryad.org/stash/dataset/doi:10.7280/D18698 |
long_lat |
ENVELOPE(-67.083,-67.083,-68.200,-68.200) |
geographic |
Baffle |
geographic_facet |
Baffle |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_relation |
https://dx.doi.org/10.1073/pnas.2103335118 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.7280/d1869810.1073/pnas.2103335118 |
_version_ |
1789960397871120384 |