Hoppmann, Mario; Arndt, Stefanie; Schmithüsen, Holger; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2010 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889292
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 (Holger Schmithüsen) and Armin Ganter, both of the overwintering team.
Version 2, 2018-04-26.
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: -70.591525 * Median Longitude: -7.800015 * South-bound Latitude: -70.616100 * West-bound Longitude: -8.128830 * North-bound Latitude: -70.570500 * East-bound Longitude: -7.482200
Date/Time Start: 2010-05-25T12:30:00 * Date/Time End: 2010-12-12T10:10:00
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 ist 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-ice interface |
| 8 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 9 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 10 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 11 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | Center | |
| 12 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 13 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 14 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 15 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | North | |
| 16 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 17 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 18 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 19 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | East | |
| 20 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 21 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 22 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 23 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | South | |
| 24 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 25 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 26 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 27 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | West | |
| 28 | Comment | Comment | Arndt, Stefanie | general | ||
| 29 | Comment 2 (continued) | Comm 2 | Arndt, Stefanie | general |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
902 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-ice interface, Digital t...) | 8 EsEs [m] (Center, Ruler stick) | 9 Snow thick [m] (Center, Ruler stick) | 10 Freeboard [m] (Center, Ruler stick) | 11 Comment (Center, Ruler stick) | 12 EsEs [m] (North, Ruler stick) | 13 Snow thick [m] (North, Ruler stick) | 14 Freeboard [m] (North, Ruler stick) | 15 Comment (North, Ruler stick) | 16 EsEs [m] (East, Ruler stick) | 17 Snow thick [m] (East, Ruler stick) | 18 Freeboard [m] (East, Ruler stick) | 19 Comment (East, Ruler stick) | 20 EsEs [m] (South, Ruler stick) | 21 Snow thick [m] (South, Ruler stick) | 22 Freeboard [m] (South, Ruler stick) | 23 Comment (South, Ruler stick) | 24 EsEs [m] (West, Ruler stick) | 25 Snow thick [m] (West, Ruler stick) | 26 Freeboard [m] (West, Ruler stick) | 27 Comment (West, Ruler stick) | 28 Comment (general) | 29 Comm 2 (general) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010-05-25T12:30 | -70.570500 | -8.128830 | ATKA00 | -27.5 | -29.1 | -10.8 | 2.10 | 0.15 | 0.68 | 0.20 | The drill fell through after about 2.80m were drilled. However, a frazil-ice-like layer below the ice prevented the measuring equipment to unfold. Therefore, the ice thickness was not determined. | Slush below ice down to 4m from snow surface, thickness not determined | ||||||||||||||||
| 2010-06-10T11:00 | -70.573900 | -8.016900 | ATKA04 | -19.6 | -3.4 | -3.4 | 0.62 | 0.22 | 0.01 | 0.78 | 0.13 | 0.05 | 0.78 | 0.10 | 0.05 | 0.71 | 0.24 | 0.02 | 0.72 | 0.16 | 0.02 | Measurements were taken on two floes to be more representative for the area. | ||||||
| 2010-06-10T12:37 | -70.573900 | -7.908000 | ATKA08 | -14.3 | 0.41 | 0.00 | 0.06 | floe 1 | 0.35 | 0.00 | 0.03 | floe 2 | 0.32 | 0.00 | 0.05 | floe 2 | 0.41 | 0.00 | 0.05 | floe 1 | 0.34 | 0.00 | 0.03 | floe 2 | Measurements were taken on two floes to be more representative for the area. | |||
| 2010-06-10T13:37 | -70.574300 | -7.803600 | ATKA12 | -15.8 | -14.4 | 0.58 | 0.00 | 0.06 | floe 1 | 0.71 | 0.00 | 0.06 | floe 2 | 0.44 | 0.00 | 0.06 | floe 1 | 0.41 | 0.00 | 0.05 | floe 1 | 0.49 | 0.00 | 0.05 | floe 1 | Measurements were taken on two floes to be more representative for the area. | ||
| 2010-06-10T14:16 | -70.573900 | -7.742600 | ATKA14 | -15.8 | -13.8 | 0.32 | 0.00 | 0.04 | 0.33 | 0.00 | 0.04 | 0.38 | 0.00 | 0.04 | 0.36 | 0.00 | 0.04 | 0.36 | 0.00 | 0.04 | Measurements were taken on two floes to be more representative for the area. | |||||||
| 2010-07-02T09:45 | -70.573900 | -8.128600 | ATKA00 | -37.8 | -19.2 | 0.8 | 1.95 | 0.57 | 0.10 | Approx. 0.5m below the top floe was another floe. This was also drilled, but the bottom of that one was not reached within 5m from the snow surface. The thickness of the top floe was 1.95m. | 0.82 | 0.28 | The hole was drilled down to 5m (from the snow surface) but no well defined bottom was reached. However, water was in the bore hole. | 0.56 | 0.17 | The hole was drilled down to 5m (from the snow surface) but no well defined bottom was reached. However, water was in the bore hole. | Air temperature 2m was measured with an Assmann psychrometer. Surface and snow-ice temperatures were measured with a digital thermometer with an external probe. | These two measurements are not trusted very well. A lead separated the ice from north-west to south-east. Within the 30 minutes that were spent at the site, the lead opened up from initially about 2m to 5m width. | ||||||||||
| 2010-08-19T10:48 | -70.575700 | -8.050700 | ATKA03 | -26.1 | -26.4 | -8.5 | 1.37 | 0.38 | 0.06 | 1.30 | 0.48 | 0.04 | 1.43 | 0.38 | 0.06 | 1.35 | 0.52 | 0.05 | 1.57 | 0.42 | 0.03 | |||||||
| 2010-08-19T12:57 | -70.583700 | -7.945700 | ATKA07 | -24.4 | -15.5 | -11.6 | 1.22 | 0.05 | 0.12 | 1.24 | 0.02 | 0.13 | 1.23 | 0.02 | 0.14 | 1.22 | 0.01 | 0.11 | 1.24 | 0.04 | 0.13 | |||||||
| 2010-08-19T14:33 | -70.592200 | -7.826000 | ATKA11 | -26.3 | -18.7 | -6.8 | 0.98 | 0.13 | 0.06 | 0.97 | 0.14 | 0.06 | 1.01 | 0.15 | 0.06 | 0.99 | 0.15 | 0.08 | 1.01 | 0.15 | 0.06 | |||||||
| 2010-08-19T15:47 | -70.572480 | -7.681220 | ATKA17 | -26.4 | -18.8 | -2.0 | 0.61 | 0.25 | -0.04 | 0.62 | 0.26 | -0.04 | 0.62 | 0.15 | -0.04 | 0.65 | 0.26 | -0.03 | 0.70 | 0.27 | -0.02 | |||||||
| 2010-08-19T12:36 | -70.608100 | -7.576900 | ATKA21 | -30.8 | -25.2 | -4.1 | 0.70 | 0.34 | -0.04 | Platelet ice visible | 0.72 | 0.30 | -0.03 | Platelet ice visible | 0.65 | 0.32 | -0.06 | Platelet ice visible | 0.69 | 0.35 | -0.04 | Platelet ice visible | 0.79 | 0.28 | -0.03 | Platelet ice visible | ||
| 2010-08-19T13:30 | -70.616100 | -7.482200 | ATKA24 | -30.6 | -21.1 | -2.7 | 0.73 | 0.22 | -0.01 | Platelet ice visible | 0.72 | 0.22 | 0.00 | Platelet ice visible | 0.71 | 0.30 | -0.02 | Platelet ice visible | 0.71 | 0.27 | -0.02 | Platelet ice visible | 0.74 | 0.18 | 0.02 | Platelet ice visible | ||
| 2010-09-04T10:04 | -70.575700 | -8.050700 | ATKA03 | -22.6 | -24.6 | -9.8 | 1.38 | 0.31 | 0.06 | 1.38 | 0.32 | 0.07 | 1.50 | 0.33 | 0.07 | 1.40 | 0.48 | 0.05 | 1.74 | 0.09 | 0.06 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-04T11:25 | -70.583700 | -7.945700 | ATKA07 | -22.0 | -18.7 | -17.1 | 1.38 | 0.02 | 0.15 | 1.41 | 0.03 | 0.15 | 1.40 | 0.02 | 0.17 | 1.30 | 0.02 | 0.14 | 1.39 | 0.01 | 0.15 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-04T12:42 | -70.592200 | -7.826000 | ATKA11 | -20.6 | -16.0 | -12.3 | 1.11 | 0.06 | 0.08 | 1.08 | 0.09 | 0.08 | 1.17 | 0.02 | 0.06 | 1.15 | 0.02 | 0.09 | 1.13 | 0.05 | 0.07 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-04T13:53 | -70.600000 | -7.701100 | ATKA16 | -22.3 | -18.7 | -6.2 | 0.79 | 0.25 | -0.03 | 0.77 | 0.24 | -0.03 | 0.81 | 0.24 | 0.00 | 0.79 | 0.33 | -0.04 | 0.81 | 0.36 | -0.06 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-04T15:00 | -70.608100 | -7.576900 | ATKA21 | -22.2 | -17.2 | -3.7 | 0.75 | 0.27 | -0.05 | 0.80 | 0.45 | -0.04 | 0.75 | 0.29 | -0.04 | 0.82 | 0.32 | -0.03 | 0.91 | 0.23 | 0.00 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-04T15:59 | -70.616100 | -7.482200 | ATKA24 | -22.1 | -17.8 | -4.8 | 0.83 | 0.24 | 0.00 | 0.87 | 0.24 | 0.02 | 0.85 | 0.29 | 0.00 | 0.82 | 0.26 | 0.00 | 0.86 | 0.19 | 0.04 | Platelet ice in all bore holes visible. | ||||||
| 2010-09-21T09:33 | -70.575700 | -8.050700 | ATKA03 | -24.0 | -23.8 | -11.3 | 1.46 | 0.28 | 0.09 | 1.45 | 0.36 | 0.08 | 1.66 | 0.24 | 0.07 | 1.55 | 0.03 | 0.49 | 1.91 | 0.24 | 0.08 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-09-21T10:37 | -70.583700 | -7.945700 | ATKA07 | -21.5 | -20.0 | -13.2 | 1.58 | 0.13 | 0.11 | 1.59 | 0.30 | 0.12 | 1.57 | 0.07 | 0.14 | 1.57 | 0.07 | 0.10 | 1.57 | 0.18 | 0.11 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-09-21T11:23 | -70.592200 | -7.826000 | ATKA11 | -20.8 | -17.0 | -15.6 | 1.30 | 0.05 | 0.12 | 1.24 | 0.08 | 0.11 | 1.37 | 0.01 | 0.11 | 1.27 | 0.06 | 0.10 | 1.27 | 0.10 | 0.10 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-09-21T12:12 | -70.600000 | -7.701100 | ATKA16 | -20.5 | -18.2 | -7.4 | 0.93 | 0.35 | -0.04 | 0.92 | 0.28 | 0.00 | 0.99 | 0.30 | -0.01 | 0.90 | 0.34 | -0.06 | 0.92 | 0.38 | -0.11 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-09-21T13:17 | -70.608100 | -7.576900 | ATKA21 | -20.2 | -19.5 | -6.5 | 1.03 | 0.57 | -0.06 | 0.96 | 0.60 | -0.07 | 0.97 | 0.65 | -0.06 | 0.96 | 0.50 | -0.08 | 0.91 | 0.62 | -0.11 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-09-21T14:30 | -70.616100 | -7.482200 | ATKA24 | -18.5 | -16.2 | -8.7 | 0.96 | 0.23 | 0.03 | 0.91 | 0.22 | 0.03 | 0.94 | 0.23 | 0.05 | 0.98 | 0.22 | 0.04 | 0.96 | 0.32 | 0.01 | Platelet ice in all bore holes visible. Experiments with video camera were performed to determine the thickness of the platlet ice layer. | ||||||
| 2010-10-16T09:45 | -70.575700 | -8.050700 | ATKA03 | -16.2 | -19.2 | -9.2 | 1.70 | 0.78 | -0.07 | Platlet ice seen in bore hole. Area probably flooded due to negative freeboard. | 1.58 | 0.88 | -0.08 | Platlet ice seen in bore hole. Area probably flooded due to negative freeboard. | 1.70 | 0.77 | -0.08 | Platlet ice seen in bore hole. Area probably flooded due to negative freeboard. | 1.59 | 0.89 | -0.12 | Platlet ice seen in bore hole. Area probably flooded due to negative freeboard. | 1.73 | 0.91 | -0.09 | Platlet ice seen in bore hole. Area probably flooded due to negative freeboard. | ||
| 2010-10-16T10:50 | -70.583700 | -7.945700 | ATKA07 | -14.3 | -16.2 | -7.8 | 1.67 | 0.54 | 0.04 | Platlet ice seen in bore hole. | 1.65 | 0.43 | 0.04 | Platlet ice seen in bore hole. | 1.67 | 0.54 | 0.05 | Platlet ice seen in bore hole. | 1.71 | 0.68 | 0.05 | Platlet ice seen in bore hole. | 1.68 | 0.48 | 0.03 | Platlet ice seen in bore hole. | ||
| 2010-10-16T12:05 | -70.592200 | -7.826000 | ATKA11 | -12.7 | -11.3 | -9.4 | 1.47 | 0.18 | 0.10 | Platlet ice seen in bore hole. | 1.54 | 0.10 | 0.10 | Platlet ice seen in bore hole. | 1.53 | 0.10 | 0.11 | Platlet ice seen in bore hole. | 1.45 | 0.17 | 0.09 | Platlet ice seen in bore hole. | 1.45 | 0.23 | 0.08 | Platlet ice seen in bore hole. | ||
| 2010-10-16T13:05 | -70.600000 | -7.701100 | ATKA17 | -10.9 | -9.2 | -6.1 | 1.11 | 0.56 | -0.07 | A soft layer of 4cm on top of the ice. | 1.07 | 0.62 | -0.11 | A soft layer of 4cm on top of the ice. | 1.15 | 0.50 | -0.05 | A soft layer of 3cm on top of the ice. | 1.22 | 0.54 | -0.03 | A soft layer of 3cm on top of the ice. | 1.10 | 0.71 | -0.15 | A soft layer of 2cm on top of the ice. | ||
| 2010-10-16T14:25 | -70.608100 | -7.576900 | ATKA21 | -10.3 | -10.3 | -4.3 | 1.05 | 0.81 | -0.16 | Position was moved some 12m NW from original position. Comparably little platlet ice seen in bore hole. | 0.92 | 0.91 | -0.19 | Comparably little platlet ice seen in bore hole. | 0.98 | 0.96 | -0.22 | 4cm of water above ice before drilling. Comparably little platlet ice seen in bore hole. | 1.10 | 0.81 | -0.13 | Comparably little platlet ice seen in bore hole. | 1.01 | 0.80 | -0.17 | Comparably little platlet ice seen in bore hole. | ||
| 2010-10-16T15:35 | -70.616100 | -7.482200 | ATKA24 | -10.9 | -9.8 | -6.8 | 1.10 | 0.46 | -0.02 | 1.13 | 0.50 | -0.02 | 1.12 | 0.45 | -0.02 | 1.11 | 0.45 | -0.02 | 1.16 | 0.49 | 0.00 | |||||||
| 2010-11-06T09:50 | -70.575700 | -8.050700 | ATKA03 | -11.7 | -11.2 | -7.3 | 1.69 | 0.80 | -0.09 | New crack some 300m south of station | 1.55 | 0.76 | -0.08 | 1.66 | 0.70 | -0.06 | 1.63 | 0.79 | -0.05 | 1.96 | 0.78 | -0.04 | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | |||||
| 2010-11-06T11:00 | -70.583700 | -7.945700 | ATKA07 | -10.2 | -9.8 | -8.7 | 1.76 | 0.57 | 0.04 | 1.75 | 0.59 | 0.04 | 1.80 | 0.54 | 0.04 | 1.76 | 0.66 | 0.05 | 1.75 | 0.60 | 0.03 | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | ||||||
| 2010-11-06T13:40 | -70.592200 | -7.826000 | ATKA11 | -8.2 | -8.2 | -10.5 | 1.57 | 0.28 | 0.07 | 1.61 | 0.26 | 0.08 | 1.65 | 0.16 | 0.08 | 1.57 | 0.34 | 0.07 | 1.55 | 0.35 | 0.06 | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | ||||||
| 2010-11-06T13:40 | -70.600000 | -7.701100 | ATKA16 | -7.6 | -7.7 | -7.2 | 1.19 | 0.59 | -0.08 | 1.16 | 0.65 | -0.14 | 1.16 | 0.64 | -0.11 | 1.16 | 0.57 | -0.10 | 1.21 | 0.63 | -0.10 | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | ||||||
| 2010-11-06T15:00 | -70.608100 | -7.576900 | ATKA21 | -6.4 | -5.2 | -7.7 | 1.10 | 0.90 | -0.21 | no well defined ice surface, some 9cm of slush on top of ice | 1.07 | 0.99 | -0.28 | 2cm of slush on top of ice | 1.14 | 0.78 | -0.17 | 2cm of slush on top of ice | 1.07 | 0.79 | -0.19 | no well defined ice surface, some 11cm of slush on top of ice | 1.00 | 0.98 | -0.26 | no well defined ice surface, some 8cm of slush on top of ice | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | |
| 2010-11-06T16:35 | -70.616100 | -7.482200 | ATKA24 | -7.6 | -7.4 | -7.6 | 1.25 | 0.51 | 0.02 | 1.21 | 0.54 | 0.04 | 1.19 | 0.48 | 0.00 | 1.25 | 0.49 | 0.00 | 1.28 | 0.49 | 0.03 | Most liekely flooding values influenced by previous drillings. Some platelet ice seen. | ||||||
| 2010-11-27T08:30 | -70.575700 | -8.050700 | ATKA03 | -8.0 | -6.8 | -5.7 | 1.50 | 0.84 | -0.07 | 1.51 | 0.88 | -0.13 | 1.68 | 0.75 | -0.10 | 1.62 | 0.73 | -0.08 | 1.60 | 0.74 | -0.07 | Few platelet ice seen. | ||||||
| 2010-11-27T09:15 | -70.583700 | -7.945700 | ATKA07 | -7.3 | -6.3 | -6.3 | 1.78 | 0.53 | 0.06 | 1.80 | 0.54 | 0.06 | 1.81 | 0.57 | 0.07 | 1.82 | 0.57 | 0.07 | 1.81 | 0.56 | 0.05 | Few platelet ice seen. | ||||||
| 2010-11-27T09:55 | -70.592200 | -7.826000 | ATKA11 | -6.2 | -5.5 | -6.5 | 1.64 | 0.58 | 0.03 | 1.70 | 0.42 | 0.05 | 1.72 | 0.57 | 0.04 | 1.63 | 0.52 | 0.02 | 1.63 | 0.49 | 0.01 | Few platelet ice seen. | ||||||
| 2010-11-27T10:45 | -70.600000 | -7.701100 | ATKA16 | -6.0 | -4.5 | -5.1 | 1.16 | 0.72 | -0.13 | 1.21 | 0.85 | -0.24 | 1.17 | 0.63 | -0.08 | 1.16 | 0.56 | -0.09 | 1.14 | 0.79 | -0.22 | Few platelet ice seen. | ||||||
| 2010-11-27T11:25 | -70.608100 | -7.576900 | ATKA21 | -6.5 | -5.8 | -4.9 | 1.15 | 0.75 | -0.13 | 1.26 | 0.78 | -0.10 | 1.17 | 0.77 | -0.18 | 1.19 | 0.78 | -0.13 | 1.19 | 0.71 | -0.09 | Few platelet ice seen. | ||||||
| 2010-11-27T12:05 | -70.616100 | -7.482200 | ATKA24 | -6.3 | -4.6 | -5.3 | 1.30 | 0.53 | 0.06 | 1.28 | 0.54 | 0.07 | 1.29 | 0.48 | 0.11 | 1.28 | 0.46 | 0.02 | 1.33 | 0.47 | 0.07 | Few platelet ice seen. | ||||||
| 2010-12-12T08:55 | -70.575700 | -8.050700 | ATKA03 | -3.2 | -3.0 | -5.0 | 1.72 | 0.79 | -0.09 | position was moved some 15m NE of original position | 1.71 | 0.83 | -0.10 | 1.68 | 0.78 | -0.08 | 1.86 | 0.86 | -0.10 | 1.68 | 0.96 | -0.07 | Few platlet ice seen. | |||||
| 2010-12-12T10:10 | -70.583700 | -7.945700 | ATKA07 | -2.1 | -2.4 | -5.3 | 1.81 | 0.57 | 0.06 | 1.81 | 0.54 | 0.07 | 1.83 | 0.55 | 0.09 | 1.86 | 0.51 | 0.06 | 1.83 | 0.59 | 0.04 | Few platlet ice seen. |