Arndt, Stefanie; Ludewig, Elke; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2015 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889281
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Manual measurements of sea ice thickness, sub-ice platelet layer thickness, freeboard, and snow thickness are distributed evenly and repeated along a 25km-long transect across Atka Bay every 2 to 4 weeks. At each measurement location, 5 holes were drilled through the ice in order to determine the aforementioned parameters, one in the center and one in a distance of five meters in each direction, to cover their small-scale spatial variabilities.
The measurements have been mainly conducted by the meteorologist (Elke Ludewig), Anderas Leonhardt, Jens-Peter Biethant, Annamarie Sticher and Bettina Nekat, all of the overwintering team.
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -70.596309 * Median Longitude: -15.808516 * South-bound Latitude: -70.615920 * West-bound Longitude: -70.607840 * North-bound Latitude: -70.575210 * East-bound Longitude: 7.840210
Date/Time Start: 2015-04-01T14:45:00 * Date/Time End: 2016-02-04T13:52:00
Event(s):
Atka_Ice_Port * Latitude: -70.610000 * Longitude: -8.140000 * Location: Atka Bay * Campaign: ANT-Land_2002-2009_ATKA * Basis: NEUMAYER III * Method/Device: Observation (OBSE)
Comment:
On 2019-11-19 it was noted, that Freeboard and Snow thickness were interchanged. What was called Snow thickness actually was Freeboard and vice versa. This is corrected now.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Arndt, Stefanie | Geocode – start, UTC | ||
| 2 | LATITUDE | Latitude | Arndt, Stefanie | Geocode | ||
| 3 | LONGITUDE | Longitude | Arndt, Stefanie | Geocode | ||
| 4 | Sample code/label | Sample label | Arndt, Stefanie | |||
| 5 | Air temperature at 2 m height | T2 | °C | Arndt, Stefanie | Digital thermometer | |
| 6 | Temperature, air | TTT | °C | Arndt, Stefanie | Digital thermometer | surface |
| 7 | Temperature, ice/snow | t | °C | Arndt, Stefanie | Digital thermometer | Snow surface |
| 8 | Temperature, ice/snow | t | °C | Arndt, Stefanie | Digital thermometer | Snow-ice interface |
| 9 | Temperature, water | Temp | °C | Arndt, Stefanie | Digital thermometer | |
| 10 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 11 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 12 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 13 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 14 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | Center | |
| 15 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 16 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 17 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 18 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 19 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | North | |
| 20 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 21 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 22 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 23 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 24 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | East | |
| 25 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 26 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 27 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 28 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 29 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | South | |
| 30 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 31 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 32 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 33 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 34 | Comment | Comment | Arndt, Stefanie | general |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
465 data points
Data
| 1 Date/Time (start, UTC) | 2 Latitude | 3 Longitude | 4 Sample label | 5 T2 [°C] (Digital thermometer) | 6 TTT [°C] (surface, Digital thermometer) | 7 t [°C] (Snow surface, Digital thermom...) | 8 t [°C] (Snow-ice interface, Digital t...) | 9 Temp [°C] (Digital thermometer) | 10 EsEs [m] (Center, Ruler stick) | 11 SIPL [m] (Center, Ruler stick) | 12 Snow thick [m] (Center, Ruler stick) | 13 Freeboard [m] (Center, Ruler stick) | 14 Comment (Center, Ruler stick) | 15 EsEs [m] (North, Ruler stick) | 16 SIPL [m] (North, Ruler stick) | 17 Snow thick [m] (North, Ruler stick) | 18 Freeboard [m] (North, Ruler stick) | 19 Comment (North, Ruler stick) | 20 EsEs [m] (East, Ruler stick) | 21 SIPL [m] (East, Ruler stick) | 22 Snow thick [m] (East, Ruler stick) | 23 Freeboard [m] (East, Ruler stick) | 24 Comment (East, Ruler stick) | 25 EsEs [m] (South, Ruler stick) | 26 SIPL [m] (South, Ruler stick) | 27 Snow thick [m] (South, Ruler stick) | 28 Freeboard [m] (South, Ruler stick) | 29 Comment (South, Ruler stick) | 30 EsEs [m] (West, Ruler stick) | 31 SIPL [m] (West, Ruler stick) | 32 Snow thick [m] (West, Ruler stick) | 33 Freeboard [m] (West, Ruler stick) | 34 Comment (general) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015-04-01T14:45 | -70.583250 | -7.945530 | ATKA07 | -17.8 | -25.2 | -10.5 | -4.2 | -1.7 | 5.80 | 4.00 | 1.45 | -0.07 | |||||||||||||||||||||
| 2015-04-21T16:40 | -70.575210 | -8.049350 | ATKA03 | -22.6 | -22.7 | -4.9 | -5.0 | -1.6 | 2.46 | 2.57 | 1.00 | -0.12 | |||||||||||||||||||||
| 2015-04-21T14:40 | -70.583250 | -7.945530 | ATKA07 | -20.4 | -22.0 | -5.3 | -8.9 | -1.6 | 2.86 | 1.61 | -0.09 | quite compact platelet ice | |||||||||||||||||||||
| 2015-04-21T13:34 | -70.605270 | 7.840210 | ATKA11 | -20.1 | -19.9 | -6.1 | -10.9 | -1.7 | 2.37 | 2.73 | 0.90 | -0.09 | |||||||||||||||||||||
| 2015-04-21T12:30 | -70.599800 | -70.607840 | ATKA16 | -18.6 | -23.8 | -11.2 | -7.3 | -1.6 | 3.20 | 0.40 | 0.94 | -0.10 | |||||||||||||||||||||
| 2015-04-21T11:15 | -70.607840 | -7.576830 | ATKA21 | -22.7 | -20.7 | -19.7 | -20.7 | -1.8 | 2.30 | 1.70 | 0.94 | -0.03 | |||||||||||||||||||||
| 2015-04-21T10:00 | -70.615920 | -7.482750 | ATKA24 | -19.1 | -22.9 | -17.6 | -17.6 | 2.50 | 1.90 | 0.05 | |||||||||||||||||||||||
| 2015-05-23T10:00 | -70.575210 | -8.049350 | ATKA03 | -34.5 | -35.6 | -19.2 | -7.1 | -1.7 | 2.65 | 4.05 | 0.83 | -0.07 | 2.58 | 2.69 | 0.84 | -0.03 | |||||||||||||||||
| 2015-05-23T11:30 | -70.583250 | -7.945530 | ATKA07 | -34.5 | -36.0 | -13.8 | -6.2 | -1.5 | 8.18 | 2.62 | 1.66 | -0.10 | |||||||||||||||||||||
| 2015-05-23T15:15 | -70.605270 | 7.840210 | ATKA11 | -30.2 | -34.9 | -18.3 | -7.3 | -1.5 | 2.50 | 2.80 | 0.89 | -0.09 | |||||||||||||||||||||
| 2015-05-23T13:25 | -70.599800 | -70.607840 | ATKA16 | -32.0 | -33.8 | -15.8 | -7.5 | -1.5 | 1.70 | 3.40 | 0.97 | -0.11 | |||||||||||||||||||||
| 2015-06-27T10:00 | -70.575210 | -8.049350 | ATKA03 | -27.1 | -31.5 | -14.1 | -6.5 | -1.6 | 3.10 | 2.50 | 1.25 | -0.10 | |||||||||||||||||||||
| 2015-06-27T12:34 | -70.583250 | -7.945530 | ATKA07 | -25.9 | -30.6 | -17.5 | -7.5 | -1.5 | 5.20 | 2.07 | 2.00 | -0.10 | |||||||||||||||||||||
| 2015-06-27T14:40 | -70.605270 | 7.840210 | ATKA11 | -25.3 | -23.5 | -13.7 | -9.2 | -1.6 | 2.67 | 4.43 | 1.10 | -0.12 | |||||||||||||||||||||
| 2015-06-27T15:31 | -70.599800 | -70.607840 | ATKA16 | -23.5 | -32.3 | -14.1 | -8.8 | -1.6 | 2.70 | 4.34 | 1.15 | -0.14 | |||||||||||||||||||||
| 2015-06-27T16:15 | -70.607840 | -7.576830 | ATKA21 | -22.7 | -28.5 | -13.8 | -8.9 | -1.8 | 2.48 | 7.52 | 1.06 | -0.04 | |||||||||||||||||||||
| 2015-07-28T09:45 | -70.575210 | -8.049350 | ATKA03 | 2.80 | 4.50 | 1.30 | -0.09 | ||||||||||||||||||||||||||
| 2015-07-28T10:27 | -70.583250 | -7.945530 | ATKA07 | 7.00 | 2.80 | 2.05 | -0.20 | ||||||||||||||||||||||||||
| 2015-07-28T12:20 | -70.605270 | 7.840210 | ATKA11 | 2.95 | 5.55 | 1.20 | -0.14 | ||||||||||||||||||||||||||
| 2015-07-28T13:45 | -70.599800 | -70.607840 | ATKA16 | 3.63 | 0.52 | 1.32 | -0.13 | ||||||||||||||||||||||||||
| 2015-07-28T14:55 | -70.607840 | -7.576830 | ATKA21 | 2.45 | 7.75 | 1.20 | |||||||||||||||||||||||||||
| 2015-07-28T15:55 | -70.615920 | -7.482750 | ATKA24 | 3.32 | 2.18 | 0.30 | 0.36 | Snow depth 0-50cm | |||||||||||||||||||||||||
| 2015-08-28T09:46 | -70.575210 | -8.049350 | ATKA03 | -35.9 | -33.0 | -15.6 | -0.8 | -1.6 | 2.95 | 6.95 | 1.32 | -0.09 | |||||||||||||||||||||
| 2015-08-28T10:35 | -70.583250 | -7.945530 | ATKA07 | -34.9 | -29.8 | -21.7 | -6.8 | 8.13 | 2.37 | 2.10 | -0.19 | platelet ice probably so thick that ice thickness is overestimated | |||||||||||||||||||||
| 2015-08-28T12:17 | -70.605270 | 7.840210 | ATKA11 | -38.6 | -23.8 | 2.80 | 6.10 | 1.13 | -0.09 | ||||||||||||||||||||||||
| 2015-08-28T13:20 | -70.599800 | -70.607840 | ATKA16 | -32.0 | -25.0 | 3.93 | 4.29 | 1.18 | -0.13 | ||||||||||||||||||||||||
| 2015-08-28T14:05 | -70.607840 | -7.576830 | ATKA21 | -33.0 | -23.0 | 2.61 | 6.93 | 1.17 | -0.04 | ||||||||||||||||||||||||
| 2015-08-28T14:39 | -70.615920 | -7.482750 | ATKA24 | -37.0 | -21.0 | 3.10 | 3.80 | 0.09 | high sastrugis | ||||||||||||||||||||||||
| 2015-10-02T09:42 | -70.575210 | -8.049350 | ATKA03 | -11.0 | -16.8 | -13.0 | -8.0 | -2.0 | 3.18 | 7.12 | 1.50 | -0.14 | |||||||||||||||||||||
| 2015-10-02T10:20 | -70.583250 | -7.945530 | ATKA07 | -11.2 | -14.2 | -14.0 | -9.0 | -3.0 | 8.64 | 4.30 | 2.15 | -0.14 | platelet ice probably so compact that ice thickness is overestimated | ||||||||||||||||||||
| 2015-10-02T11:40 | -70.605270 | 7.840210 | ATKA11 | -11.6 | -13.1 | -12.0 | -9.0 | -2.0 | 2.90 | 6.43 | 1.40 | -0.16 | |||||||||||||||||||||
| 2015-10-02T12:45 | -70.599800 | -70.607840 | ATKA16 | -12.0 | -15.8 | -14.2 | -10.0 | -3.0 | 2.90 | 7.20 | 1.30 | -0.14 | |||||||||||||||||||||
| 2015-10-02T13:20 | -70.607840 | -7.576830 | ATKA21 | -12.3 | -16.7 | -13.0 | -10.0 | -2.0 | 3.02 | 4.58 | 1.36 | -0.10 | |||||||||||||||||||||
| 2015-10-02T14:25 | -70.615920 | -7.482750 | ATKA24 | -11.4 | -15.4 | -14.0 | -14.0 | 3.32 | 2.22 | 0.30 | 0.41 | ||||||||||||||||||||||
| 2015-10-28T09:42 | -70.575210 | -8.049350 | ATKA03 | -18.0 | -20.5 | -12.0 | -6.0 | -2.8 | 3.10 | 6.80 | 1.41 | -0.13 | |||||||||||||||||||||
| 2015-10-28T10:38 | -70.583250 | -7.945530 | ATKA07 | -17.0 | -19.6 | -13.8 | -9.8 | 8.45 | 2.65 | 2.33 | -0.16 | platelet ice probably so compact that ice thickness is overestimated | |||||||||||||||||||||
| 2015-10-28T12:35 | -70.605270 | 7.840210 | ATKA11 | -16.0 | -19.6 | -14.8 | -8.9 | -2.9 | 3.38 | 8.06 | 1.28 | -0.11 | |||||||||||||||||||||
| 2015-10-28T13:50 | -70.599800 | -70.607840 | ATKA16 | -15.0 | -17.8 | -12.0 | -9.8 | -3.0 | 4.50 | 4.40 | 1.32 | -0.15 | |||||||||||||||||||||
| 2015-10-28T13:20 | -70.607840 | -7.576830 | ATKA21 | -15.2 | -16.8 | -14.2 | -8.8 | -2.8 | 3.17 | 8.35 | 1.38 | -0.06 | |||||||||||||||||||||
| 2015-10-28T15:15 | -70.615920 | -7.482750 | ATKA24 | -15.0 | -16.2 | 3.33 | 5.20 | 0.00 | 0.37 | ||||||||||||||||||||||||
| 2015-11-29T08:35 | -70.575210 | -8.049350 | ATKA03 | -9.8 | 3.27 | 8.06 | 1.48 | -0.10 | |||||||||||||||||||||||||
| 2015-11-29T09:09 | -70.583250 | -7.945530 | ATKA07 | -8.1 | 8.27 | 3.53 | 2.30 | -0.10 | |||||||||||||||||||||||||
| 2015-11-29T10:20 | -70.605270 | 7.840210 | ATKA11 | -7.0 | 3.01 | 9.39 | 1.41 | -0.10 | |||||||||||||||||||||||||
| 2015-11-29T14:45 | -70.599800 | -70.607840 | ATKA16 | -6.1 | 3.12 | 8.15 | 1.55 | -0.20 | |||||||||||||||||||||||||
| 2015-11-29T11:25 | -70.607840 | -7.576830 | ATKA21 | -6.4 | 2.94 | 9.36 | 1.61 | -0.08 | |||||||||||||||||||||||||
| 2015-11-29T11:54 | -70.615920 | -7.482750 | ATKA24 | -4.9 | 3.48 | 6.30 | 0.17 | 0.28 | |||||||||||||||||||||||||
| 2016-01-02T13:26 | -70.575210 | -8.049350 | ATKA03 | 0.0 | -4.1 | -4.0 | -4.9 | -1.9 | 4.75 | 6.35 | 1.53 | -0.12 | |||||||||||||||||||||
| 2016-01-02T14:19 | -70.583250 | -7.945530 | ATKA07 | 0.8 | -8.3 | -4.7 | -6.1 | -1.9 | 9.16 | 6.18 | 2.25 | -0.15 | platelet ice probably so compact that ice thickness is overestimated | ||||||||||||||||||||
| 2016-01-02T16:16 | -70.605270 | 7.840210 | ATKA11 | 0.0 | -5.8 | -3.0 | -4.8 | -1.9 | 4.29 | 2.31 | 1.37 | -0.12 | |||||||||||||||||||||
| 2016-01-02T17:05 | -70.599800 | -70.607840 | ATKA16 | -0.1 | -5.6 | -3.5 | -5.2 | -1.9 | 3.86 | 6.02 | 1.60 | -0.21 | |||||||||||||||||||||
| 2016-01-02T18:05 | -70.607840 | -7.576830 | ATKA21 | -0.5 | -9.3 | -2.4 | -4.3 | -1.9 | 4.46 | 4.46 | 1.48 | -0.09 | |||||||||||||||||||||
| 2016-01-02T18:54 | -70.615920 | -7.482750 | ATKA24 | 1.6 | -7.4 | -0.4 | -0.8 | -2.2 | 2.82 | 5.28 | 0.21 | 0.48 | |||||||||||||||||||||
| 2016-02-04T13:52 | -70.575210 | -8.049350 | ATKA03 | -0.2 | -6.3 | -4.1 | -4.3 | -1.9 | 5.77 | 3.57 | 1.44 | -0.15 | Tests along the Atka measuring route showed that the sea ice is traversed by numerous longitudinal cracks. Especially in the east of the bay, from Atka16 the border to the water was about 1.5 km. |