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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.
Keyword(s):
aerosols; beryllium-7; central Arctic Ocean; Mosaic; winter
Project(s):
Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventStephens, Mark
2 Sample IDSample IDStephens, Mark
3 DATE/TIMEDate/TimeStephens, MarkGeocode – start
4 DATE/TIMEDate/TimeStephens, MarkGeocode – end
5 LATITUDELatitudeStephens, MarkGeocode – start
6 LONGITUDELongitudeStephens, MarkGeocode – start
7 LATITUDELatitudeStephens, MarkGeocode – end
8 LONGITUDELongitudeStephens, MarkGeocode – end
9 Air volumeAir volm3Stephens, Mark
10 Beryllium-7, in airBe-7 airmBq/m3Stephens, MarkGamma spectrometry
11 Beryllium-7, in air, errorBe-7 air e±Stephens, MarkGamma 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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Sample ID		3 
Date/Time
(start)		4 
Date/Time
(end)		5 
Latitude
(start)		6 
Longitude
(start)		7 
Latitude
(end)		8 
Longitude
(end)		9 
Air vol [m3]		10 
Be-7 air [mBq/m3]		11 
Be-7 air e [±]
PS122/2_17-129 Deploy 12019-12-20T18:55:002019-12-30T10:45:0086.6772112.824286.5989116.789400525.20.810.16
PS122/2_18-116 Deploy 22019-12-30T12:01:002020-01-02T16:15:0086.5965116.865886.8467116.303500690.60.900.12
PS122/2_21-149 Deploy 32020-01-22T12:35:002020-01-26T08:03:0087.476394.891787.412893.4353001784.01.550.10
PS122/2_21-150 Deploy 42020-01-26T08:14:002020-02-02T12:20:0087.412993.442287.352394.680600672.40.890.17
PS122/2_23-107 Deploy 52020-02-04T04:54:002020-02-09T11:35:0087.465794.000087.731792.9465001705.11.120.11
PS122/2_23-121 Deploy 62020-02-09T11:53:002020-02-17T07:02:0087.733092.920288.072679.2018001040.71.550.12
PS122/2_25-2 Deploy 72020-02-17T07:37:002020-02-27T17:00:0088.072779.162288.396136.035300682.21.340.28
PS122/3_31-92 Deploy 82020-03-14T18:52:002020-03-18T08:33:0087.118416.860686.703612.1274001571.41.480.07
PS122/3_32-100 Deploy 92020-03-22T19:15:002020-03-24T06:20:0086.224315.815486.197815.676050712.21.850.15
PS122/3_33-114 Deploy102020-03-24T08:44:002020-03-25T19:14:0086.195815.630586.079713.490800699.91.510.13
PS122/3_34-105 Deploy112020-04-03T07:03:002020-04-04T18:15:0084.810013.731184.628112.975900723.61.590.12
PS122/3_34-106 Deplo122020-04-04T18:55:002020-04-07T15:54:0084.624612.983784.496714.5501501426.42.000.07
PS122/3_35-141 Deploy132020-04-09T07:56:002020-04-11T12:26:0084.439614.843184.321414.7393001068.31.220.10
PS122/3_36-175 Deploy 142020-04-13T12:24:002020-04-16T13:28:0084.293514.963984.342913.090300714.51.320.13
PS122/3_36-176 Deploy 152020-04-16T14:12:002020-04-18T16:45:0084.346513.090684.602914.772950126.31.230.69
PS122/3_37-144 Deploy 162020-04-23T18:38:002020-04-25T16:30:0084.068316.031383.982315.570900777.91.470.13
PS122/3_37-145 Deploy 172020-04-25T17:08:002020-04-26T18:12:0083.979615.569383.917015.526200494.31.750.20
PS122/3_37-146 Deploy 182020-04-26T18:48:002020-04-30T14:33:0083.916615.528983.927817.5159501064.21.140.08
PS122/3_38-136 Deploy 192020-04-30T15:14:002020-05-03T14:19:0083.926317.523383.886418.0183001390.71.310.08
PS122/3_38-137 Deploy 202020-05-03T15:19:002020-05-07T09:57:0083.886818.046183.936016.797500653.61.480.18
PS122/3_39-128 Deploy 212020-05-07T10:24:002020-05-09T16:39:0083.935516.769883.749413.884600988.31.590.13
PS122/3_40-38 Deploy 232020-05-14T07:51:002020-05-20T06:11:0083.39309.933783.19909.6765001238.50.210.06
PS122/3_41-18 Deploy 242020-05-20T07:15:002020-05-26T06:29:0083.19299.786782.39688.190467524.10.530.19
PS122/3_42-44 Deploy 252020-05-28T06:16:002020-05-31T07:28:0082.38858.300981.80209.855780138.0
PS122/3_42-45 Deploy 262020-05-31T08:35:002020-06-02T17:35:0081.79759.861480.65939.579680309.00.280.21