Arndt, Stefanie; Rau, Andrea; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2016 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889270
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 (Andrea Rau), Thomas Schaefer and Steven Franke, 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: -70.596408 * Median Longitude: -14.834428 * South-bound Latitude: -70.615920 * West-bound Longitude: -70.607840 * North-bound Latitude: -70.575210 * East-bound Longitude: 7.840210
Date/Time Start: 2016-06-07T13:28:00 * Date/Time End: 2016-12-22T16:45:00
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 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 15 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 16 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 17 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 18 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | North | |
| 19 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 20 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 21 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 22 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 23 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 24 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 25 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 26 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 27 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 28 | Sub-ice platelet-layer thickness | SIPL | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 29 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 30 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 31 | Comment | Comment | Arndt, Stefanie | general |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
982 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 EsEs [m] (North, Ruler stick) | 15 SIPL [m] (North, Ruler stick) | 16 Snow thick [m] (North, Ruler stick) | 17 Freeboard [m] (North, Ruler stick) | 18 Comment (North, Ruler stick) | 19 EsEs [m] (East, Ruler stick) | 20 SIPL [m] (East, Ruler stick) | 21 Snow thick [m] (East, Ruler stick) | 22 Freeboard [m] (East, Ruler stick) | 23 EsEs [m] (South, Ruler stick) | 24 SIPL [m] (South, Ruler stick) | 25 Snow thick [m] (South, Ruler stick) | 26 Freeboard [m] (South, Ruler stick) | 27 EsEs [m] (West, Ruler stick) | 28 SIPL [m] (West, Ruler stick) | 29 Snow thick [m] (West, Ruler stick) | 30 Freeboard [m] (West, Ruler stick) | 31 Comment (general) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016-06-07T14:20 | -70.575210 | -8.049350 | ATKA03 | -27.0 | -27.1 | -19.5 | -11.1 | -2.1 | 0.83 | 0.90 | 0.24 | 0.03 | 0.81 | 0.92 | 0.23 | 0.03 | 0.86 | 0.89 | 0.26 | 0.02 | 0.80 | 0.93 | 0.25 | 0.03 | 0.85 | 1.01 | 0.24 | 0.03 | ||
| 2016-06-07T13:28 | -70.605270 | 7.840210 | ATKA11 | -24.1 | -27.5 | -20.1 | -15.7 | -2.8 | 0.77 | 0.23 | 0.12 | 0.04 | PE could not be determined precisely | |||||||||||||||||
| 2016-07-12T13:10 | -70.575210 | -8.049350 | ATKA03 | -19.9 | -23.4 | -8.6 | -2.2 | 1.01 | 0.15 | 0.01 | 0.09 | 1.03 | 0.17 | 0.02 | 0.10 | 1.03 | 0.13 | 0.01 | 0.10 | 1.02 | 0.09 | 0.01 | 0.10 | 1.05 | 0.10 | 0.01 | 0.10 | |||
| 2016-07-12T13:45 | -70.583250 | -7.945530 | ATKA07 | -21.8 | -25.0 | -15.5 | -6.4 | -2.1 | 1.07 | 0.40 | 0.03 | 0.09 | 1.06 | 0.42 | 0.03 | 0.11 | 1.08 | 0.34 | 0.03 | 0.09 | 1.07 | 0.49 | 0.02 | 0.11 | 1.08 | 0.40 | 0.04 | 0.12 | ||
| 2016-07-12T14:35 | -70.605270 | 7.840210 | ATKA11 | -23.4 | -25.7 | -16.2 | -13.9 | -2.2 | 1.24 | 0.92 | 0.10 | 0.08 | 1.30 | 1.10 | 0.11 | 0.07 | 1.30 | 1.09 | 0.11 | 0.08 | 1.20 | 0.98 | 0.00 | 0.09 | 1.27 | 1.03 | 0.10 | 0.05 | ||
| 2016-07-12T15:10 | -70.599800 | -70.607840 | ATKA16 | -24.2 | -26.1 | -16.9 | -12.5 | -2.2 | 1.07 | 0.68 | 0.14 | 0.07 | 1.13 | 0.67 | 0.13 | 0.06 | 1.16 | 0.71 | 0.10 | 0.08 | 1.20 | 0.71 | 0.13 | 0.60 | 1.13 | 0.62 | 0.13 | 0.07 | ||
| 2016-07-12T14:00 | -70.607840 | -7.576830 | ATKA21 | -17.7 | -24.7 | -12.9 | -8.9 | -2.1 | 1.26 | 1.20 | 0.48 | 0.00 | 1.30 | 1.12 | 0.41 | 0.00 | 1.18 | 1.35 | 0.39 | 0.02 | 1.17 | 1.27 | 0.48 | 0.00 | 1.21 | 1.17 | 0.38 | 0.00 | ||
| 2016-07-12T14:50 | -70.615920 | -7.482750 | ATKA24 | -18.9 | -25.1 | -17.1 | -14.0 | -2.3 | 1.25 | 0.89 | 0.13 | 0.04 | 1.20 | 0.97 | 0.18 | 0.07 | 1.27 | 0.89 | 0.09 | 0.07 | 1.20 | 0.95 | 0.12 | 0.06 | 1.23 | 1.05 | 0.11 | 0.05 | ||
| 2016-08-19T11:10 | -70.575210 | -8.049350 | ATKA03 | -20.0 | -27.4 | -15.4 | -11.5 | -2.1 | 1.40 | 0.10 | 0.15 | 0.10 | 1.39 | 0.12 | 0.07 | 0.10 | 1.41 | 0.13 | 0.13 | 0.09 | 1.49 | 0.11 | 0.09 | 0.09 | 1.37 | 0.07 | 0.14 | 0.10 | wet snow/ice interface at Atka03-16 | |
| 2016-08-19T11:45 | -70.583250 | -7.945530 | ATKA07 | -19.6 | -24.4 | -16.1 | -12.7 | -2.1 | 1.43 | 0.37 | 0.17 | 0.10 | 1.38 | 0.50 | 0.16 | 0.06 | 1.43 | 0.42 | 0.24 | 0.06 | 1.42 | 0.44 | 0.09 | 0.08 | 1.44 | 0.37 | 0.18 | 0.08 | wet snow/ice interface at Atka03-16 | |
| 2016-08-19T12:28 | -70.605270 | 7.840210 | ATKA11 | -19.2 | -22.7 | -13.8 | -10.6 | -2.1 | 1.55 | 1.46 | 0.27 | 0.11 | 1.50 | 1.35 | 0.23 | 0.09 | 1.53 | 1.45 | 0.34 | 0.09 | 1.61 | 1.33 | 0.23 | 0.12 | 1.54 | 1.35 | 0.26 | 0.09 | wet snow/ice interface at Atka03-16 | |
| 2016-08-19T13:05 | -70.599800 | -70.607840 | ATKA16 | -18.9 | -22.6 | -15.4 | -11.6 | -2.1 | 1.37 | 1.16 | 0.20 | 0.07 | 1.43 | 1.14 | 0.19 | 0.06 | 1.39 | 1.27 | 0.19 | 0.08 | 1.41 | 1.30 | 0.24 | 0.08 | 1.39 | 1.32 | 0.20 | 0.07 | wet snow/ice interface at Atka03-16 | |
| 2016-08-19T13:45 | -70.607840 | -7.576830 | ATKA21 | -18.7 | -22.2 | -12.6 | -8.4 | -2.1 | 1.36 | 1.29 | 0.41 | 0.00 | 1.42 | 1.21 | 0.55 | 0.01 | 1.34 | 1.28 | 0.44 | -0.01 | 1.36 | 1.36 | 0.42 | -0.01 | 1.33 | 1.33 | 0.43 | -0.03 | wet snow/ice interface at Atka03-16 | |
| 2016-09-14T14:18 | -70.575210 | -8.049350 | ATKA03 | -17.9 | -23.3 | -15.5 | -15.3 | -2.1 | 1.57 | 0.13 | 0.01 | 0.13 | 1.60 | 0.18 | 0.01 | 0.14 | 1.67 | 0.10 | 0.01 | 0.11 | 1.55 | 0.25 | 0.06 | 0.11 | 1.57 | 0.21 | 0.04 | 0.12 | wet snow/ice interface at Atka03-11 | |
| 2016-09-14T15:00 | -70.583250 | -7.945530 | ATKA07 | -18.8 | -26.1 | -17.0 | -16.0 | -2.1 | 1.60 | 0.86 | 0.14 | 0.10 | 1.65 | 0.78 | 0.24 | 0.08 | 1.58 | 0.85 | 0.10 | 0.10 | 1.48 | 0.86 | 0.12 | 0.09 | 1.57 | 0.95 | 0.13 | 0.09 | wet snow/ice interface at Atka03-11 | |
| 2016-09-14T15:47 | -70.605270 | 7.840210 | ATKA11 | -20.0 | -28.4 | -16.8 | -14.6 | -2.1 | 1.74 | 1.50 | 0.24 | 0.12 | 1.65 | 1.20 | 0.30 | 0.07 | 1.75 | 1.45 | 0.28 | 0.11 | 1.80 | 1.53 | 0.19 | 0.11 | 1.75 | 1.77 | 0.26 | 0.13 | wet snow/ice interface at Atka03-11 | |
| 2016-09-14T16:20 | -70.599800 | -70.607840 | ATKA16 | -21.9 | -29.5 | -17.2 | -14.0 | -2.1 | 1.55 | 1.55 | 0.26 | 0.09 | 1.56 | 1.63 | 0.23 | 0.06 | 1.58 | 1.55 | 0.23 | 0.09 | 1.58 | 1.67 | 0.18 | 0.09 | 1.55 | 1.50 | 0.25 | 0.09 | wet snow/ice interface at Atka03-11 | |
| 2016-09-14T17:05 | -70.607840 | -7.576830 | ATKA21 | -23.5 | -30.7 | -15.7 | -11.1 | -2.0 | 1.50 | 1.68 | 0.46 | 0.00 | 1.47 | 1.81 | 0.47 | 0.00 | 1.50 | 1.59 | 0.50 | 0.00 | 1.44 | 1.81 | 0.46 | 0.00 | 1.54 | 1.87 | 0.52 | 0.00 | wet snow/ice interface at Atka03-11 | |
| 2016-09-14T14:30 | -70.615920 | -7.482750 | ATKA24 | -23.5 | -31.8 | -16.9 | -6.9 | -2.0 | 1.50 | 1.78 | 0.86 | -0.14 | 1.51 | 1.95 | 0.85 | -0.09 | 1.57 | 1.75 | 0.69 | -0.09 | wet snow/ice interface at Atka03-11 | |||||||||
| 2016-10-13T18:30 | -70.575210 | -8.049350 | ATKA03 | -14.6 | -19.7 | -11.7 | -4.5 | -2.0 | 1.21 | 2.97 | 1.10 | -0.21 | 1.15 | 2.18 | 0.99 | -0.15 | 1.18 | 2.09 | 0.95 | -0.14 | wet snow/ice interface at Atka03-16 | |||||||||
| 2016-10-13T17:45 | -70.583250 | -7.945530 | ATKA07 | -13.8 | -19.9 | -12.9 | -8.0 | -2.0 | 1.47 | 3.10 | 0.59 | -0.05 | 1.44 | 2.70 | 0.69 | -0.08 | 1.57 | 3.01 | 0.68 | -0.06 | 1.68 | 3.16 | 0.60 | -0.04 | 1.53 | 2.96 | 0.67 | -0.07 | wet snow/ice interface at Atka03-16 | |
| 2016-10-13T17:05 | -70.605270 | 7.840210 | ATKA11 | -14.8 | -19.0 | -13.4 | -9.5 | -2.0 | 1.68 | 3.00 | 0.44 | -0.01 | 1.74 | 2.31 | 0.26 | 0.00 | 1.66 | 2.49 | 0.50 | 0.01 | 1.70 | 2.70 | 0.52 | 0.01 | 1.70 | 2.67 | 0.55 | 0.00 | wet snow/ice interface at Atka03-16 | |
| 2016-10-13T16:20 | -70.599800 | -70.607840 | ATKA16 | -14.6 | -17.7 | -13.1 | -11.7 | -2.2 | 1.77 | 3.00 | 0.37 | 0.06 | 1.81 | 2.96 | 0.27 | 0.09 | 3.00 | 1.71 | 0.36 | 0.06 | 1.91 | 2.71 | 0.22 | 0.10 | 1.85 | 2.70 | 0.33 | 0.03 | wet snow/ice interface at Atka03-16 | |
| 2016-10-13T15:40 | -70.607840 | -7.576830 | ATKA21 | -14.6 | -19.3 | -14.2 | -11.3 | -2.0 | 1.66 | 1.44 | 0.37 | 0.04 | 1.71 | 1.58 | 0.37 | 0.03 | 1.74 | 1.31 | 0.33 | 0.04 | 1.37 | 1.70 | 0.33 | 0.03 | 1.70 | 1.49 | 0.37 | 0.03 | wet snow/ice interface at Atka03-16 | |
| 2016-10-13T15:10 | -70.615920 | -7.482750 | ATKA24 | -15.0 | -18.1 | -14.2 | -14.6 | -2.0 | 1.80 | 0.36 | 0.05 | 0.13 | 1.77 | 0.23 | 0.07 | 0.13 | 1.74 | 0.31 | 0.10 | 0.12 | 1.78 | 0.17 | 0.04 | 0.12 | 1.55 | 0.24 | 0.02 | 0.14 | wet snow/ice interface at Atka03-16 | |
| 2016-11-20T18:26 | -70.575210 | -8.049350 | ATKA03 | -4.5 | -8.6 | -4.1 | -4.0 | -2.0 | 2.02 | 3.69 | 0.84 | -0.13 | 1.79 | 4.44 | 0.81 | -0.15 | 2.14 | 3.62 | 0.79 | -0.12 | 1.85 | 3.84 | 0.85 | -0.11 | 1.80 | 3.78 | 0.87 | -0.12 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-11-20T17:55 | -70.583250 | -7.945530 | ATKA07 | -4.1 | -8.5 | -4.4 | -13.5 | -2.0 | 1.74 | 4.35 | 0.69 | -0.02 | 1.62 | 4.68 | 0.64 | -0.02 | 1.75 | 4.51 | 0.62 | -0.01 | 4.17 | 1.77 | 0.56 | 0.00 | 1.70 | 5.00 | 0.63 | 0.00 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-11-20T17:23 | -70.605270 | 7.840210 | ATKA11 | -3.0 | -9.0 | -4.6 | -5.5 | -2.1 | 2.07 | 4.27 | 0.40 | 0.15 | 1.93 | 4.85 | 0.47 | 0.11 | 1.85 | 4.16 | 0.53 | 0.07 | 2.53 | 5.47 | 0.32 | 0.09 | 3.01 | 6.63 | 0.32 | 0.18 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-11-20T16:50 | -70.599800 | -70.607840 | ATKA16 | -2.4 | -6.8 | -4.5 | -5.5 | -2.1 | 2.01 | 4.27 | 0.36 | 0.16 | 1.93 | 3.63 | 0.24 | 0.12 | 1.98 | 4.37 | 0.35 | 0.17 | 2.02 | 3.84 | 0.15 | 0.13 | 2.01 | 3.80 | 0.23 | 0.18 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-11-20T16:15 | -70.607840 | -7.576830 | ATKA21 | -1.8 | -6.1 | -4.2 | -5.5 | -2.2 | 1.76 | 3.49 | 0.55 | 0.00 | 1.85 | 3.42 | 0.37 | 0.02 | 1.84 | 3.69 | 0.03 | 0.06 | 1.84 | 3.69 | 0.32 | 0.06 | 1.85 | 4.01 | 0.52 | 0.00 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-11-20T15:35 | -70.615920 | -7.482750 | ATKA24 | -1.6 | -6.7 | -4.0 | -4.7 | -2.1 | 1.86 | 1.69 | 0.12 | 0.16 | 1.90 | 1.65 | 0.13 | 0.16 | 1.89 | 1.87 | 0.09 | 0.15 | 1.94 | 1.83 | 0.16 | 0.18 | 1.86 | 1.76 | 0.20 | 0.12 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T18:15 | -70.575210 | -8.049350 | ATKA03 | -3.0 | -8.4 | -4.1 | -3.5 | -2.2 | 2.39 | 3.67 | 0.75 | -0.04 | 1.93 | 3.87 | 0.79 | -0.04 | 1.93 | 3.20 | 0.78 | -0.07 | 1.91 | 4.17 | 0.78 | -0.06 | 1.94 | 4.14 | 0.78 | -0.04 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T17:38 | -70.583250 | -7.945530 | ATKA07 | -3.1 | -8.3 | -4.5 | -3.9 | -2.0 | 1.85 | 4.56 | 0.69 | -0.04 | 1.99 | 4.09 | 0.61 | -0.06 | 1.76 | 4.92 | 0.71 | -0.02 | 1.73 | 4.68 | 0.66 | -0.01 | 1.66 | 4.71 | 0.67 | -0.01 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T16:55 | -70.605270 | 7.840210 | ATKA11 | -2.8 | -7.4 | -4.9 | -4.6 | -2.0 | 2.38 | 5.62 | 0.31 | 0.18 | 2.15 | 4.23 | 0.49 | 0.20 | 1.91 | 3.61 | 0.50 | 0.09 | 0.03 | 0.05 | 0.46 | 0.18 | 2.40 | 4.79 | 0.36 | 0.18 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T16:26 | -70.599800 | -70.607840 | ATKA16 | -2.9 | -6.9 | -4.5 | -4.3 | -2.0 | 2.05 | 3.17 | 0.16 | 0.19 | 2.04 | 3.94 | 0.38 | 0.17 | 1.98 | 3.50 | 0.28 | 0.19 | 2.04 | 2.10 | 0.18 | 0.17 | 1.92 | 4.97 | 0.12 | 0.15 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T15:45 | -70.607840 | -7.576830 | ATKA21 | -2.5 | -5.0 | -4.8 | -4.4 | -2.0 | 1.87 | 3.71 | 0.42 | 0.05 | 1.91 | 3.39 | 0.48 | 0.01 | 1.83 | 3.55 | 0.46 | 0.03 | 1.80 | 3.60 | 0.47 | 0.20 | 1.85 | 3.79 | 0.34 | 0.04 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-08T15:00 | -70.615920 | -7.482750 | ATKA24 | -1.8 | -5.0 | -2.5 | -2.5 | -2.0 | 1.80 | 1.58 | 0.01 | 0.13 | 1.74 | 2.04 | 0.07 | 0.16 | 1.88 | 1.80 | 0.01 | 0.17 | 1.85 | 1.74 | 0.02 | 0.11 | 1.89 | 1.68 | 0.05 | 0.17 | Atka16-21: slightly brown/green-colored waters coming up; wet snow/ice interface at Atka03-16 | |
| 2016-12-22T16:45 | -70.575210 | -8.049350 | ATKA03 | -0.3 | -4.2 | -1.2 | -2.6 | -1.9 | 1.86 | 3.26 | 0.70 | -0.09 | 1.77 | 3.63 | 0.74 | -0.10 | 1.96 | 3.56 | 0.60 | -0.04 | 1.81 | 3.41 | 0.75 | -0.15 | Since the sea ice at that time was traversed by large cracks, only Atka03 was drilled for safety reasons. The pingi ramp had already been closed at this time, the sea ice ramp os still navigable with slight offset. The snow was very sticky and soft. |