Hoppmann, Mario; Arndt, Stefanie; Asseng, Jölund; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2011 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889291
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 (Jölund Asseng), Fabian Zahn and Markéta Pokerná, all 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: -70.595664 * Median Longitude: -7.768049 * South-bound Latitude: -70.616100 * West-bound Longitude: -8.050700 * North-bound Latitude: -70.575700 * East-bound Longitude: -7.482200
Date/Time Start: 2011-06-06T12:00:00 * Date/Time End: 2012-01-17T00:00:00
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 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 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 12 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | Center |
| 13 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | Center | |
| 14 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 15 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 16 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | North |
| 17 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | North | |
| 18 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 19 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 20 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | East |
| 21 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | East | |
| 22 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 23 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 24 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | South |
| 25 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | South | |
| 26 | Sea ice thickness | EsEs | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 27 | Snow thickness | Snow thick | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 28 | Freeboard | Freeboard | m | Arndt, Stefanie | Ruler stick (RULER) | West |
| 29 | Comment | Comment | Arndt, Stefanie | Ruler stick (RULER) | West | |
| 30 | Comment | Comment | Arndt, Stefanie | general |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1515 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 Snow thick [m] (Center, Ruler stick) | 12 Freeboard [m] (Center, Ruler stick) | 13 Comment (Center, Ruler stick) | 14 EsEs [m] (North, Ruler stick) | 15 Snow thick [m] (North, Ruler stick) | 16 Freeboard [m] (North, Ruler stick) | 17 Comment (North, Ruler stick) | 18 EsEs [m] (East, Ruler stick) | 19 Snow thick [m] (East, Ruler stick) | 20 Freeboard [m] (East, Ruler stick) | 21 Comment (East, Ruler stick) | 22 EsEs [m] (South, Ruler stick) | 23 Snow thick [m] (South, Ruler stick) | 24 Freeboard [m] (South, Ruler stick) | 25 Comment (South, Ruler stick) | 26 EsEs [m] (West, Ruler stick) | 27 Snow thick [m] (West, Ruler stick) | 28 Freeboard [m] (West, Ruler stick) | 29 Comment (West, Ruler stick) | 30 Comment (general) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011-06-06T12:00 | -70.575700 | -8.050700 | ATKA03 | 0.85 | 0.12 | 0.04 | 0.83 | 0.25 | 0.00 | 0.83 | 0.15 | 0.00 | 0.80 | 0.25 | 0.02 | 0.88 | 0.19 | 0.04 | 2-m temperature measured in 0.5m. | ||||||||||
| 2011-06-06T13:13 | -70.583700 | -7.945700 | ATKA07 | -29.6 | -23.4 | -3.5 | 0.98 | 0.28 | Zwischenschicht | 1.00 | 0.06 | 0.77 | 0.94 | 0.25 | 0.14 | 0.75 | 0.25 | 0.05 | 0.73 | 0.02 | 0.33 | 2-m temperature measured in 0.5m. | |||||||
| 2011-06-06T13:50 | -70.592200 | -7.826000 | ATKA11 | -30.3 | -26.3 | -2.9 | 0.92 | 0.10 | 0.07 | 0.74 | 0.16 | 0.02 | 0.73 | 0.13 | 0.05 | 0.80 | 0.07 | 0.05 | 0.80 | 0.12 | 0.03 | 2-m temperature measured in 0.5m. | |||||||
| 2011-06-06T14:33 | -70.600000 | -7.701100 | ATKA16 | -31.7 | -22.7 | -2.7 | 0.75 | 0.18 | 0.10 | 0.75 | 0.14 | 0.03 | 0.72 | 0.24 | 0.03 | 0.78 | 0.17 | 0.08 | 0.70 | 0.22 | 0.03 | 2-m temperature measured in 0.5m. | |||||||
| 2011-06-06T15:10 | -70.608100 | -7.576900 | ATKA21 | -31.6 | -22.2 | -2.4 | 0.67 | 0.25 | -0.03 | 0.64 | 0.33 | -0.06 | 0.75 | 0.20 | 0.00 | 0.74 | 0.18 | 0.01 | 0.74 | 0.19 | 0.01 | 2-m temperature measured in 0.5m. | |||||||
| 2011-06-06T15:54 | -70.616100 | -7.482200 | ATKA24 | -31.6 | -25.4 | -2.2 | 0.52 | 0.25 | -0.06 | 0.55 | 0.43 | -0.09 | 0.52 | 0.25 | -0.03 | 0.52 | 0.25 | -0.03 | 0.52 | 0.26 | -0.02 | 2-m temperature measured in 0.5m. | |||||||
| 2011-07-01T12:45 | -70.575700 | -8.050700 | ATKA03 | -6.8 | -6.8 | -8.0 | -1.9 | 1.05 | 0.34 | -0.01 | 0.95 | 0.44 | -0.05 | 0.97 | 0.47 | -0.06 | 1.10 | 0.31 | 0.00 | 1.08 | 0.44 | 0.00 | |||||||
| 2011-07-01T13:15 | -70.583700 | -7.945700 | ATKA07 | -6.5 | -6.5 | -8.4 | -2.2 | 1.45 | 0.27 | 0.02 | 1.64 | 0.21 | 0.43 | 1.24 | 0.28 | 0.10 | 0.88 | 0.55 | 0.06 | 1.67 | 0.14 | 0.33 | |||||||
| 2011-07-01T13:45 | -70.592200 | -7.826000 | ATKA11 | -6.4 | -6.2 | -8.9 | -1.9 | 1.06 | 0.31 | 0.09 | 0.79 | 0.45 | -0.04 | 0.98 | 0.30 | -0.03 | 1.11 | 0.32 | 0.08 | 1.00 | 0.30 | 0.05 | |||||||
| 2011-07-01T14:10 | -70.600000 | -7.701100 | ATKA16 | -6.4 | -6.3 | -7.1 | -2.0 | 1.05 | 0.34 | 0.02 | 1.18 | 0.30 | 0.08 | 1.11 | 0.36 | 0.09 | 1.03 | 0.42 | 0.01 | 1.04 | 0.53 | 0.03 | |||||||
| 2011-07-01T14:40 | -70.608100 | -7.576900 | ATKA21 | -6.5 | -6.4 | -7.5 | -2.2 | 0.92 | 0.40 | -0.03 | 0.82 | 0.49 | -0.06 | 0.90 | 0.48 | -0.04 | 0.97 | 0.23 | 0.01 | 0.92 | 0.40 | -0.03 | |||||||
| 2011-07-01T15:05 | -70.616100 | -7.482200 | ATKA24 | -6.6 | -6.5 | -7.4 | -2.0 | 0.75 | 0.36 | -0.01 | 0.78 | 0.55 | -0.10 | 0.82 | 0.39 | -0.03 | 0.84 | 0.40 | 0.00 | 0.78 | 0.65 | -0.07 | |||||||
| 2011-08-04T00:00 | -70.575700 | -8.050700 | ATKA03 | -23.6 | -23.7 | -21.6 | -7.6 | -1.8 | 1.22 | 0.34 | -0.05 | 1.13 | 0.76 | -0.12 | 1.14 | 0.48 | 0.07 | 1.22 | 0.60 | -0.05 | 1.17 | 0.50 | -0.08 | ||||||
| 2011-08-04T00:00 | -70.583700 | -7.945700 | ATKA07 | -23.6 | -23.8 | -22.8 | -12.9 | -2.8 | 1.65 | 0.25 | 0.30 | 1.85 | 0.30 | 0.45 | 1.50 | 0.39 | 0.14 | 1.17 | 0.60 | 0.07 | soft in the lower part | 1.82 | 0.27 | 0.40 | |||||
| 2011-08-04T00:00 | -70.592200 | -7.826000 | ATKA11 | -23.6 | -23.8 | -23.1 | -8.7 | -2.0 | 1.23 | 0.58 | -0.02 | 0.98 | 0.47 | -0.07 | 1.22 | 0.85 | -0.02 | 1.22 | 0.41 | 0.01 | 1.18 | 0.51 | -0.04 | ||||||
| 2011-08-04T00:00 | -70.600000 | -7.701100 | ATKA16 | -23.2 | -21.8 | -19.1 | -8.8 | -2.8 | 1.30 | 0.40 | 0.00 | 1.35 | 0.52 | 0.04 | 1.29 | 0.54 | -0.01 | 1.23 | 0.52 | -0.02 | 1.15 | 0.46 | -0.03 | ||||||
| 2011-08-04T00:00 | -70.608100 | -7.576900 | ATKA21 | -23.4 | -22.8 | -21.5 | -12.4 | -2.2 | 1.15 | 0.24 | 0.08 | 1.00 | 0.43 | -0.02 | 1.22 | 0.38 | -0.03 | 1.25 | 0.34 | 0.01 | 1.10 | 0.38 | 0.00 | ||||||
| 2011-08-04T00:00 | -70.616100 | -7.482200 | ATKA24 | -23.9 | -23.6 | -21.7 | -10.1 | -2.2 | 0.94 | 0.27 | 0.08 | 0.92 | 0.36 | 0.00 | 0.89 | 0.37 | 0.00 | 0.91 | 0.41 | -0.02 | 0.93 | 0.20 | 0.01 | ||||||
| 2011-08-19T00:00 | -70.575700 | -8.050700 | ATKA03 | -14.6 | -15.3 | -18.2 | -10.8 | -1.6 | 1.23 | 0.46 | -0.07 | Pe, Pegel | 1.20 | 0.70 | -0.08 | 1.26 | 0.52 | -0.08 | Platelet ice | 1.36 | 0.65 | -0.03 | Platelet ice | 1.30 | 0.40 | 0.00 | Platelet ice | ||
| 2011-08-19T00:00 | -70.583700 | -7.945700 | ATKA07 | -14.7 | -9.8 | -17.8 | -11.2 | -2.0 | 1.77 | 0.35 | 0.24 | 2.03 | 0.10 | 0.53 | Layers | 1.70 | 0.36 | 0.18 | 1.58 | 0.50 | 0.17 | 1.90 | 0.30 | 0.49 | inbetween soft layer | ||||
| 2011-08-19T00:00 | -70.592200 | -7.826000 | ATKA11 | -14.8 | -17.5 | -18.2 | -9.0 | -1.9 | 0.32 | 0.54 | 0.00 | 1.16 | 0.40 | -0.03 | Platelet ice | 1.26 | 0.60 | -0.03 | ice level pole installed. Platelet ice | 1.31 | 0.40 | 0.00 | Platelet ice | 1.26 | 0.54 | -0.02 | |||
| 2011-08-19T00:00 | -70.600000 | -7.701100 | ATKA16 | -14.7 | -19.0 | -18.4 | -10.2 | -1.9 | 1.31 | 0.48 | 0.00 | 1.45 | 0.46 | 0.02 | 1.30 | 0.40 | 0.06 | 1.32 | 0.46 | 0.06 | 1.21 | 0.49 | -0.03 | ||||||
| 2011-08-19T00:00 | -70.608100 | -7.576900 | ATKA21 | -15.4 | -15.8 | -17.5 | -10.9 | -2.0 | 1.17 | 0.38 | 0.03 | Pe | 1.06 | 0.44 | -0.04 | ice level pole installed | 1.21 | 0.49 | 0.00 | 1.21 | 0.49 | 0.02 | Platelet ice | 1.14 | 0.30 | 0.00 | |||
| 2011-08-19T00:00 | -70.616100 | -7.482200 | ATKA24 | -16.8 | -16.5 | -16.3 | -10.7 | -2.3 | 0.98 | 0.28 | 0.04 | 0.98 | 0.40 | 0.01 | Platelet ice | 0.97 | 0.38 | 0.02 | 1.00 | 0.32 | 0.00 | 0.99 | 0.20 | 0.05 | |||||
| 2011-09-07T00:00 | -70.575700 | -8.050700 | ATKA03 | -24.1 | -23.8 | -23.5 | -11.3 | -2.0 | 1.35 | 0.48 | -0.04 | 1.24 | 0.76 | -0.09 | wet | 1.24 | 0.65 | -0.10 | Platelet ice | 1.38 | 0.65 | -0.07 | Platelet ice | 1.34 | 0.56 | -0.06 | Platelet ice | Cancelled due to decreasing weather conditions. | |
| 2011-09-14T00:00 | -70.575700 | -8.050700 | ATKA03 | -6.8 | -7.0 | -9.2 | -8.4 | -2.2 | 1.42 | 0.50 | -0.03 | level: 85 | 1.28 | 0.88 | -0.10 | Platelet ice | 1.31 | 0.78 | -0.09 | Platelet ice | 1.58 | 0.71 | -0.06 | 1.36 | 0.69 | -0.08 | Platelet ice | Measurement order from 6 to 1 | |
| 2011-09-14T00:00 | -70.583700 | -7.945700 | ATKA07 | -6.8 | -7.1 | -10.2 | -10.9 | -2.4 | 1.93 | 0.44 | 0.28 | 2.02 | 0.28 | 0.39 | 1.78 | 0.52 | 0.11 | 1.66 | 0.60 | 0.12 | 2.10 | 0.34 | 0.39 | Measurement order from 6 to 1 | |||||
| 2011-09-14T00:00 | -70.592200 | -7.826000 | ATKA11 | -6.9 | -7.0 | -11.1 | -9.2 | -2.0 | 1.43 | 0.60 | 0.07 | 1.26 | 0.49 | -0.05 | 1.31 | 0.66 | -0.01 | level: 90 | 1.40 | 0.54 | 0.04 | 1.24 | 0.60 | -0.01 | Measurement order from 6 to 1 | ||||
| 2011-09-14T00:00 | -70.600000 | -7.701100 | ATKA16 | -6.9 | -7.1 | -8.6 | -9.1 | -2.3 | 1.48 | 0.52 | 0.00 | Platelet ice | 1.58 | 0.57 | 0.01 | Platelet ice | 1.47 | 0.58 | 0.01 | Platelet ice | 1.42 | 0.48 | 0.08 | Platelet ice | 1.35 | 0.52 | 0.00 | Platelet ice | Measurement order from 6 to 1 |
| 2011-09-14T00:00 | -70.608100 | -7.576900 | ATKA21 | -6.8 | -7.0 | -9.8 | -9.2 | -2.3 | 1.31 | 0.49 | 0.06 | Platelet ice | 1.17 | 0.60 | -0.03 | level: 93 | 1.30 | 0.48 | 0.01 | Platelet ice | 1.24 | 0.58 | 0.01 | Platelet ice | 1.22 | 0.55 | -0.03 | Platelet ice | Measurement order from 6 to 1 |
| 2011-09-14T00:00 | -70.616100 | -7.482200 | ATKA24 | -6.8 | -6.3 | -8.0 | -9.8 | -2.0 | 1.17 | 0.30 | 0.06 | Platelet ice | 1.11 | 0.38 | 0.03 | Platelet ice | 1.14 | 0.37 | 0.03 | Platelet ice | 1.14 | 0.44 | 0.00 | Platelet ice | 1.17 | 0.27 | 0.02 | Platelet ice | Measurement order from 6 to 1 |
| 2011-10-09T00:00 | -70.575700 | -8.050700 | ATKA03 | -14.0 | -13.4 | -15.1 | -6.9 | -1.9 | 1.45 | 0.88 | -0.10 | Platelet ice; level: 90 | 1.36 | 0.85 | -0.11 | Platelet ice | 1.35 | 1.00 | -0.13 | Platelet ice | 1.51 | 0.93 | -0.10 | Platelet ice | 1.45 | 0.82 | -0.10 | ||
| 2011-10-09T00:00 | -70.583700 | -7.945700 | ATKA07 | -13.9 | -13.0 | -14.4 | -2.4 | 2.10 | 0.52 | 0.19 | 2.29 | 0.40 | 0.39 | 1.88 | 0.68 | 0.06 | 1.82 | 0.69 | 0.07 | 2.35 | 0.38 | 0.47 | |||||||
| 2011-10-09T00:00 | -70.592200 | -7.826000 | ATKA11 | -13.2 | -8.7 | -14.4 | -7.9 | -2.2 | 1.49 | 0.62 | 0.00 | Platelet ice | 1.35 | 0.61 | -0.03 | Platelet ice | 1.47 | 0.62 | 0.00 | Platelet ice | 1.50 | 0.60 | 0.02 | 1.46 | 0.62 | -0.02 | Platelet ice | ||
| 2011-10-09T00:00 | -70.600000 | -7.701100 | ATKA16 | -14.1 | -13.5 | -15.0 | -7.7 | -2.2 | 1.60 | 0.68 | -0.03 | 1.58 | 0.66 | -0.05 | 1.56 | 0.70 | -0.05 | 1.46 | 0.68 | -0.05 | 1.47 | 0.74 | -0.05 | small platelet ice | |||||
| 2011-10-09T00:00 | -70.608100 | -7.576900 | ATKA21 | -15.5 | -14.1 | -15.4 | -7.0 | -2.1 | 1.34 | 0.70 | -0.08 | 1.30 | 0.72 | -0.07 | Platelet ice | 1.38 | 0.80 | -0.05 | Platelet ice | 1.44 | 0.59 | -0.05 | Platelet ice | 1.38 | 0.73 | -0.05 | |||
| 2011-10-09T00:00 | -70.616100 | -7.482200 | ATKA24 | -15.2 | -14.6 | -14.1 | -11.0 | -2.2 | 1.33 | 0.24 | 0.05 | 1.28 | 0.35 | 0.08 | small platelet ice | 1.27 | 0.30 | 0.08 | 1.25 | 0.34 | 0.03 | small platelet ice | 1.30 | 0.21 | 0.06 | ||||
| 2011-10-30T00:00 | -70.575700 | -8.050700 | ATKA03 | -15.6 | -2.1 | 1.55 | 0.85 | -0.12 | 1.41 | 0.94 | -0.16 | 1.44 | 0.90 | -0.16 | 1.57 | 0.87 | -0.14 | 1.51 | 0.74 | -0.14 | sunny; from ATKA11 onwards: windy | ||||||||
| 2011-10-30T00:00 | -70.583700 | -7.945700 | ATKA07 | -15.5 | -15.5 | -15.6 | -7.9 | -2.4 | 2.20 | 0.72 | 0.19 | 2.80 | 0.44 | 0.45 | 1.90 | 0.80 | -0.03 | 1.70 | 0.95 | 0.00 | 2.22 | 0.60 | 0.30 | sunny; from ATKA11 onwards: windy | |||||
| 2011-10-30T00:00 | -70.592200 | -7.826000 | ATKA11 | -15.7 | -14.5 | -14.1 | -6.7 | -2.1 | 1.51 | 0.71 | -0.04 | small platelet ice | 1.40 | 0.85 | -0.07 | small platelet ice | 1.45 | 0.77 | -0.06 | small platelet ice | 1.56 | 0.58 | 0.00 | small platelet ice | 1.50 | 0.78 | -0.03 | Platelet ice | sunny; from ATKA11 onwards: windy |
| 2011-10-30T00:00 | -70.600000 | -7.701100 | ATKA16 | -12.9 | -13.9 | -14.3 | -6.5 | 1.67 | 0.85 | -0.07 | small platelet ice | 1.73 | 0.85 | -0.10 | small platelet ice | 1.60 | 0.84 | -0.07 | small platelet ice | 1.53 | 0.88 | -0.06 | small platelet ice | 1.50 | 0.82 | -0.05 | small platelet ice | sunny; from ATKA11 onwards: windy | |
| 2011-10-30T00:00 | -70.608100 | -7.576900 | ATKA21 | -13.2 | -12.2 | -12.2 | -6.2 | -2.1 | 1.43 | 0.72 | -0.07 | Platelet ice | 1.39 | 0.76 | -0.04 | Platelet ice | 1.46 | 0.65 | -0.05 | Platelet ice | 1.46 | 0.78 | -0.08 | Platelet ice | 1.43 | 0.74 | -0.07 | Platelet ice | sunny; from ATKA11 onwards: windy |
| 2011-10-30T00:00 | -70.616100 | -7.482200 | ATKA24 | -12.2 | -12.2 | -12.4 | -8.2 | -2.2 | 1.43 | 0.48 | 0.01 | dark | 1.37 | 0.37 | 0.05 | small platelet ice | 1.34 | 0.51 | 0.04 | small platelet ice | 1.33 | 0.35 | 0.00 | small platelet ice | 1.46 | 0.35 | 0.04 | Platelet ice; dark | sunny; from ATKA11 onwards: windy |
| 2011-11-18T00:00 | -70.575700 | -8.050700 | ATKA03 | -6.5 | -6.6 | -7.5 | -4.7 | -1.8 | 1.68 | 0.95 | -0.14 | 1.79 | 0.90 | -0.09 | 1.60 | 0.96 | -0.12 | 1.70 | 0.95 | -0.13 | 1.66 | 0.89 | -0.09 | ||||||
| 2011-11-18T00:00 | -70.583700 | -7.945700 | ATKA07 | -5.0 | -4.4 | -7.0 | -6.2 | -1.8 | 2.27 | 0.96 | 0.11 | 2.50 | 0.70 | 0.26 | 2.50 | 1.12 | -0.08 | 2.05 | 1.16 | -0.10 | 2.60 | 0.81 | 0.29 | ||||||
| 2011-11-18T00:00 | -70.592200 | -7.826000 | ATKA11 | -5.3 | -4.8 | -7.8 | -5.0 | -1.8 | 1.57 | 1.07 | -0.14 | 1.49 | 1.04 | -0.19 | 1.50 | 1.11 | -0.20 | 1.61 | 1.03 | -0.14 | 1.64 | 0.92 | -0.07 | ||||||
| 2011-11-18T00:00 | -70.600000 | -7.701100 | ATKA16 | -6.6 | -5.2 | -6.5 | -5.1 | -1.9 | 1.80 | 0.73 | 0.00 | 1.82 | 0.85 | -0.08 | 1.64 | 0.78 | -0.08 | 1.61 | 0.77 | -0.06 | 1.68 | 0.73 | -0.01 | ||||||
| 2011-11-18T00:00 | -70.608100 | -7.576900 | ATKA21 | -6.0 | -5.8 | -7.1 | -5.1 | -1.8 | 1.51 | 0.78 | -0.05 | 1.45 | 0.73 | -0.06 | 1.53 | 0.84 | -0.11 | 1.53 | 0.95 | -0.09 | 1.50 | 0.80 | -0.09 | ||||||
| 2011-11-18T00:00 | -70.616100 | -7.482200 | ATKA24 | -6.4 | -6.8 | -7.0 | -5.9 | -1.9 | 1.53 | 0.37 | 0.09 | W brown | 1.68 | 0.36 | 0.18 | W brown | 1.42 | 0.51 | 0.07 | W brown | 1.46 | 0.40 | 0.09 | W brwon | 1.56 | 0.11 | 0.15 | W brown | |
| 2011-12-11T00:00 | -70.575700 | -8.050700 | ATKA03 | 1.65 | 1.06 | -0.16 | 1.59 | 0.90 | -0.11 | 1.65 | 1.03 | -0.12 | 1.72 | 0.97 | -0.16 | 1.71 | 0.99 | -0.08 | |||||||||||
| 2011-12-11T00:00 | -70.583700 | -7.945700 | ATKA07 | 2.83 | 0.94 | 0.08 | 2.56 | 0.70 | 0.31 | 2.18 | 1.05 | -0.13 | 1.99 | 1.14 | -0.09 | 2.56 | 0.81 | 0.28 | |||||||||||
| 2011-12-11T00:00 | -70.592200 | -7.826000 | ATKA11 | 1.66 | 1.01 | -0.11 | Platelet ice | 1.61 | 0.97 | -0.16 | Platelet ice | 1.63 | 1.03 | -0.16 | Platelet ice | 1.71 | 0.98 | -0.12 | 1.60 | 1.02 | -0.15 | Platelet ice | |||||||
| 2011-12-11T00:00 | -70.600000 | -7.701100 | ATKA16 | 1.69 | 0.86 | -0.12 | Platelet ice | 1.94 | 0.87 | -0.06 | 1.76 | 0.79 | -0.05 | 1.64 | 0.82 | -0.07 | 1.67 | 0.81 | -0.08 | Platelet ice | |||||||||
| 2011-12-11T00:00 | -70.608100 | -7.576900 | ATKA21 | 1.54 | 0.82 | -0.09 | Platelet ice | 1.49 | 0.74 | -0.07 | 1.62 | 0.74 | -0.05 | 1.60 | 0.88 | -0.09 | 1.51 | 0.79 | -0.07 | ||||||||||
| 2011-12-11T00:00 | -70.616100 | -7.482200 | ATKA24 | 1.57 | 0.35 | 0.09 | 1.47 | 0.30 | 0.06 | 1.52 | 0.46 | 0.08 | 1.50 | 0.43 | 0.01 | 1.54 | 0.34 | 0.07 | |||||||||||
| 2011-12-29T00:00 | -70.575700 | -8.050700 | ATKA03 | 0.0 | -0.3 | -0.1 | -2.3 | -1.8 | 1.73 | 0.89 | -0.16 | big platelet ice | 1.74 | 0.87 | -0.13 | big platelet ice | 1.76 | 0.96 | -0.17 | 1.82 | 0.96 | -0.15 | Platelet ice | 1.65 | 0.90 | -0.13 | Platelet ice | one ice core per station | |
| 2011-12-29T00:00 | -70.583700 | -7.945700 | ATKA07 | -0.2 | 0.5 | 0.0 | -3.0 | 1.42 | 0.88 | 0.07 | 3.10 | 0.77 | 0.24 | layers | 2.17 | 1.09 | -0.15 | 1.90 | 1.09 | -0.12 | 1.77 | 0.71 | 0.28 | one ice core per station | |||||
| 2011-12-29T00:00 | -70.592200 | -7.826000 | ATKA11 | 0.2 | 0.3 | 0.0 | -2.5 | -1.9 | 1.82 | 0.80 | -0.05 | Platelet ice | 1.62 | 0.85 | -0.16 | Platelet ice | 1.68 | 0.90 | -0.15 | Platelet ice | 1.73 | 0.80 | -0.12 | Platelet ice | 1.65 | 0.93 | -0.16 | some platelet ice | one ice core per station |
| 2011-12-29T00:00 | -70.600000 | -7.701100 | ATKA16 | 0.0 | 0.0 | 0.0 | -3.4 | -1.9 | 1.82 | 0.68 | -0.06 | 1.82 | 0.80 | -0.12 | Platelet ice | 1.89 | 0.82 | -0.07 | Platelet ice | 1.70 | 0.80 | -0.07 | Platelet ice | 1.71 | 0.73 | -0.09 | Platelet ice | one ice core per station | |
| 2011-12-29T00:00 | -70.608100 | -7.576900 | ATKA21 | 0.1 | 0.1 | 0.0 | -2.8 | -1.9 | 1.66 | 0.70 | -0.03 | 1.50 | 0.80 | -0.10 | Platelet ice | 1.62 | 0.78 | -0.06 | Platelet ice | 1.58 | 0.83 | -0.13 | Platelet ice | 1.55 | 0.82 | -0.08 | one ice core per station | ||
| 2011-12-29T00:00 | -70.616100 | -7.482200 | ATKA24 | 0.1 | -0.4 | -0.3 | -2.6 | -1.9 | 1.59 | 0.33 | 0.06 | Platelet ice brown | 1.56 | 0.25 | 0.07 | Platelet ice brown | 1.54 | 0.40 | 0.08 | Platelet ice brown | 1.54 | 0.39 | 0.00 | Platelet ice brown | 1.58 | 0.31 | 0.05 | Platelet ice brown | one ice core per station |
| 2012-01-17T00:00 | -70.575700 | -8.050700 | ATKA03 | -0.7 | 0.2 | 0.0 | -1.9 | 1.75 | 0.90 | -0.17 | Platelet ice / level: 83 | 1.65 | 0.88 | -0.13 | Platelet ice | 1.68 | 0.92 | -0.12 | Platelet ice | 1.44 | 0.95 | -0.16 | Platelet ice/ ice core | 1.71 | 0.90 | -0.14 | Platelet ice | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. | |
| 2012-01-17T00:00 | -70.583700 | -7.945700 | ATKA07 | -1.9 | 0.0 | 0.0 | -1.9 | -1.8 | 2.24 | 0.90 | 0.12 | ice core | 2.44 | 0.80 | 0.07 | 1.05, slush | 2.16 | 1.00 | -0.18 | 2.03 | 0.97 | -0.04 | 1m slush | 2.36 | 0.74 | 0.23 | 1.1m slush | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. | |
| 2012-01-17T00:00 | -70.592200 | -7.826000 | ATKA11 | -0.3 | -0.3 | -0.1 | -1.9 | -1.7 | 1.79 | 0.87 | -0.18 | Platelet ice | 1.63 | 0.83 | -0.20 | Platelet ice/ ice core | 1.75 | 0.88 | -0.15 | Platelet ice/ level: 83 | 1.81 | 0.80 | -0.11 | Platelet ice | 1.75 | 0.85 | -0.14 | Platelet ice/yellow snow | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. |
| 2012-01-17T00:00 | -70.600000 | -7.701100 | ATKA16 | -1.2 | -0.4 | 0.0 | -2.5 | -1.8 | 1.81 | 0.68 | -0.10 | Platelet ice/ ice core | 1.94 | 0.76 | -0.05 | Platelet ice | 1.94 | 0.74 | -0.08 | Platelet ice | 1.73 | 0.84 | -0.09 | Platelet ice | 1.71 | 0.68 | -0.08 | Platelet ice | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. |
| 2012-01-17T00:00 | -70.608100 | -7.576900 | ATKA21 | -1.5 | -1.3 | 0.0 | -2.2 | -1.8 | 1.63 | 0.80 | -0.10 | Platelet ice | 1.53 | 0.80 | -0.10 | platelet ice, level: 95 | 1.62 | 0.80 | -0.09 | Platelet ice | 1.60 | 0.90 | -0.17 | Platelet ice/ ice core | 1.60 | 0.81 | -0.09 | Platelet ice | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. |
| 2012-01-17T00:00 | -70.616100 | -7.482200 | ATKA24 | -2.9 | -1.8 | -0.8 | -1.8 | -1.8 | 1.65 | 0.33 | 0.07 | Platelet ice | 1.55 | 0.33 | 0.10 | Platelet ice | 1.55 | 0.32 | 0.08 | Platelet ice | 1.52 | 0.37 | 0.01 | Platelet ice/ ice core | 1.51 | 0.27 | 0.05 | Platelet ice/ W brown | At ATKA07 partially slush under solid ice. Weather: sunny and weak winds; in some circumstances radiation error in temperature measurements. |