Stephens, Mark (2022): Beryllium-7 concentrations in aerosols during the MOSAiC expedition [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945413, In: Stephens, M (2022): Beryllium-7 concentrations in snow, ice, seawater, and aerosols during the MOSAiC expedition [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.945414
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Abstract:
Aerosol samples were obtained with a Tisch TE-5170V-BL high volume aerosol sampler, modified to collect 12 replicate samples on acid-washed 47mm diameter Whatman-41 (W-41) filters. The aerosol sampler was mounted on the Polarstern p-deck. Sampling was controlled using wind speed, direction and precipitation sensors (also mounted on the p deck) in order to avoid contamination from ship exhaust. For Be-7 analysis, three of the 47mm aerosol samples were stacked in a plastic Petri dish and counted by gamma spectroscopy. Be-7 has a readily identifiable gamma peak at 478 keV. The counting system was calibrated by preparing a commercial standard in geometry identical to the samples.
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
National Science Foundation (NSF), grant/award no. 1753423: Collaborative Research: Defining the Atmospheric Deposition of Trace Elements into the Arctic Ocean-Ice Ecosystem During the Year-Long MOSAiC Ice Drift
Coverage:
Median Latitude: 84.667628 * Median Longitude: 27.549989 * South-bound Latitude: 80.661401 * West-bound Longitude: 8.174451 * North-bound Latitude: 88.072650 * East-bound Longitude: 116.865817
Date/Time Start: 2019-12-20T18:55:00 * Date/Time End: 2020-06-02T17:35:00
Minimum Elevation: -4423.4 m * Maximum Elevation: -905.6 m
Event(s):
PS122/2_17-129 * Latitude: 86.677150 * Longitude: 112.824183 * Date/Time: 2019-12-20T21:55:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Aerosol sampler (AEROS)
PS122/2_18-116 * Latitude: 86.596517 * Longitude: 116.865817 * Date/Time: 2019-12-30T15:01:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Aerosol sampler (AEROS)
PS122/2_21-149 * Latitude: 87.476267 * Longitude: 94.891667 * Date/Time: 2020-01-22T12:00:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Aerosol sampler (AEROS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Stephens, Mark | |||
| 2 | Sample ID | Sample ID | Stephens, Mark | |||
| 3 | DATE/TIME | Date/Time | Stephens, Mark | Geocode – start | ||
| 4 | DATE/TIME | Date/Time | Stephens, Mark | Geocode – end | ||
| 5 | LATITUDE | Latitude | Stephens, Mark | Geocode – start | ||
| 6 | LONGITUDE | Longitude | Stephens, Mark | Geocode – start | ||
| 7 | LATITUDE | Latitude | Stephens, Mark | Geocode – end | ||
| 8 | LONGITUDE | Longitude | Stephens, Mark | Geocode – end | ||
| 9 | Air volume | Air vol | m3 | Stephens, Mark | ||
| 10 | Beryllium-7, in air | Be-7 air | mBq/m3 | Stephens, Mark | Gamma spectrometry | |
| 11 | Beryllium-7, in air, error | Be-7 air e | ± | Stephens, Mark | Gamma spectrometry |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
98 data points