Arndt, Stefanie; Schulz, Hauke; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2017 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889250
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 (Hauke Schulz) and Max Merl, both 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: -70.601403 * Median Longitude: -7.931567 * South-bound Latitude: -70.615500 * West-bound Longitude: -8.140978 * North-bound Latitude: -70.574750 * East-bound Longitude: -7.484250
Date/Time Start: 2017-05-08T13:54:00 * Date/Time End: 2017-12-24T13:45:00
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 | 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 | Ruler stick (RULER) | West | |
35 | Comment | Comment | Arndt, Stefanie | general | ||
36 | Comment 2 (continued) | Comm 2 | Arndt, Stefanie | general |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1703 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 (West, Ruler stick) | 35 Comment (general) | 36 Comm 2 (general) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2017-05-08T13:54 | -70.609159 | -8.140978 | Shelf100 | -32.0 | -34.0 | -14.2 | -3.0 | -2.1 | 3.06 | 1.08 | 0.05 | T_snow in 50cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | |||||||||||||||||||||
2017-05-08T14:39 | -70.609619 | -8.138613 | Shelf200 | -31.9 | -32.2 | -13.9 | -3.6 | -2.0 | 0.55 | 0.19 | 0.45 | -0.17 | T_snow in 15cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | ||||||||||||||||||||
2017-05-08T14:58 | -70.610056 | -8.136275 | Shelf300 | -32.3 | -33.9 | -19.8 | -6.0 | -2.0 | 0.76 | 0.37 | -0.05 | T_snow in 15cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | |||||||||||||||||||||
2017-05-08T15:22 | -70.610531 | -8.133960 | Shelf400 | -32.3 | -33.8 | -22.1 | -7.0 | -2.0 | 0.68 | 0.31 | -0.06 | T_snow in 15cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | |||||||||||||||||||||
2017-05-08T15:44 | -70.611011 | -8.131651 | Shelf500 | -31.3 | -30.8 | -16.8 | -15.1 | -2.0 | 0.70 | 0.09 | 0.14 | 0.04 | T_snow in 15cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | ||||||||||||||||||||
2017-05-08T16:10 | -70.613507 | -8.120407 | Shelf1000 | -30.6 | -31.2 | -15.8 | -10.5 | -2.0 | 0.61 | 0.20 | -0.02 | T_snow in 15cm | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. | Thermometers could hardly be read at the prevailing temperatures or the device failed completely at times. Temperature values are therefore not reliable. | |||||||||||||||||||||
2017-05-12T16:35 | -70.609619 | -8.138613 | Shelf200 | -11.6 | -15.5 | -6.3 | -4.4 | -2.0 | 0.70 | 0.36 | 0.23 | -0.03 | slush-ice at snow/ice interface | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. Sometimes long cracks can be seen in the sea ice. Snow temperatures were measured in the middle of the snow. | |||||||||||||||||||||
2017-05-12T16:25 | -70.610056 | -8.136275 | Shelf300 | -11.7 | -15.0 | -7.7 | -5.0 | -2.0 | 0.64 | 0.33 | 0.35 | -0.02 | slush-ice at snow/ice interface | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. Sometimes long cracks can be seen in the sea ice. Snow temperatures were measured in the middle of the snow. | |||||||||||||||||||||
2017-05-12T16:13 | -70.610531 | -8.133960 | Shelf400 | -11.6 | -14.4 | -8.6 | -6.1 | -2.0 | 0.56 | 0.33 | 0.28 | -0.03 | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. Sometimes long cracks can be seen in the sea ice. Snow temperatures were measured in the middle of the snow. | ||||||||||||||||||||||
2017-05-12T16:05 | -70.611011 | -8.131651 | Shelf500 | -11.6 | -16.2 | -10.6 | -9.2 | -2.1 | 0.70 | 0.23 | 0.15 | 0.06 | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. Sometimes long cracks can be seen in the sea ice. Snow temperatures were measured in the middle of the snow. | ||||||||||||||||||||||
2017-05-12T15:50 | -70.613507 | -8.120407 | Shelf1000 | -10.5 | -16.5 | -9.4 | -8.0 | -2.0 | 0.62 | 0.05 | 0.17 | 0.00 | Sea ice was very flat. At the 5th drilling there were some snowdrifts/raises. Surface temperatures of the snow were measured with IR thermometers. Sometimes long cracks can be seen in the sea ice. Snow temperatures were measured in the middle of the snow. | ||||||||||||||||||||||
2017-05-18T15:25 | -70.574750 | -8.045700 | Atka03 | -21.1 | -13.2 | -14.0 | -8.0 | -2.0 | 1.80 | 0.62 | 0.32 | 0.05 | 1.04 | 0.42 | 0.25 | 0.01 | 1.62 | 0.39 | 0.26 | 0.02 | double ice layer at 1.20m | 0.46 | not enough corer extensions | 2.98 | 1.06 | 0.30 | 0.00 | bore hole quite fast refrozen, therefore freeboard value not reliable | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||
2017-05-18T13:20 | -70.582450 | -7.944417 | Atka07 | -21.5 | -18.4 | -13.8 | -8.7 | -2.0 | 0.73 | 0.10 | 0.38 | -0.03 | strikingly clear water | 0.69 | 0.11 | 0.22 | -0.02 | clear water | 0.71 | 0.10 | 0.28 | -0.05 | clear water | 0.89 | 0.12 | 0.21 | -0.06 | slush-ice at snow/ice interface (before drilling), clear water | 0.81 | 0.63 | 0.33 | -0.02 | clear water | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. |
2017-05-18T18:03 | -70.609159 | -8.140978 | Shelf100 | -25.1 | -25.7 | -10.5 | -3.7 | -2.0 | 3.83 | 0.60 | 1.03 | freeboard quite positiv | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-18T17:52 | -70.609619 | -8.138613 | Shelf200 | -25.6 | -25.9 | -13.0 | -6.2 | -2.0 | 0.73 | 0.63 | 0.20 | 0.01 | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-18T17:32 | -70.610056 | -8.136275 | Shelf300 | -24.4 | -25.6 | -14.3 | -7.0 | -2.0 | 0.61 | 0.49 | 0.34 | -0.04 | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-18T17:13 | -70.610531 | -8.133960 | Shelf400 | -25.2 | -24.7 | -14.7 | -8.4 | -3.0 | 0.59 | 0.53 | 0.29 | -0.04 | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-18T16:57 | -70.611011 | -8.131651 | Shelf500 | -25.3 | -25.4 | -19.4 | -15.8 | -2.2 | 0.77 | 0.42 | 0.13 | 0.06 | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-18T16:38 | -70.613507 | -8.120407 | Shelf1000 | -24.4 | -21.5 | -14.8 | -11.4 | -2.0 | 0.69 | 0.39 | 0.19 | 0.01 | The sea ice was still very even between Shelf100 and Shelf1000, but there were significantly more cracks to be seen. At Atka3 there were some distortions, also on the way to Atka7, distortions and flat surfaces alternated. | Atka7 was rather on an uneven spot. Surface temperatures of the snow were measured with IR thermometers. Conductivities were analyzed from a water sample and refer to a reference temperature of 20°C. | |||||||||||||||||||||
2017-05-30T19:14 | -70.574750 | -8.045700 | ATKA03 | -12.3 | -14.1 | -10.7 | -9.1 | -2.1 | 1.06 | 0.50 | 0.10 | 0.05 | 1.96 | 1.37 | 0.35 | -0.06 | 0.94 | 0.32 | 0.17 | 0.05 | 1.24 | 0.36 | 0.46 | 0.07 | 1.01 | 0.37 | 0.04 | 0.08 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | ||||||
2017-05-30T16:55 | -70.582450 | -7.944417 | ATKA07 | -14.6 | -17.2 | -9.6 | -6.4 | -2.0 | 0.79 | 0.22 | 0.66 | -0.14 | slush | 0.77 | 1.86 | 0.57 | -0.13 | 0.80 | 0.17 | 0.66 | -0.16 | slush | 0.96 | 0.03 | 0.70 | -0.16 | slush | 0.80 | 0.25 | 0.66 | -0.12 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | |||
2017-05-30T15:38 | -70.591533 | -7.824533 | ATKA11 | -14.7 | -16.8 | -12.9 | -10.4 | -2.1 | 0.76 | 0.02 | 0.11 | 0.04 | 0.64 | 0.07 | 0.16 | 0.01 | 0.95 | 0.06 | 0.06 | 0.05 | 0.73 | 0.09 | 0.08 | 0.04 | 0.69 | 0.11 | 0.15 | 0.02 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | ||||||
2017-05-30T13:19 | -70.599250 | -7.701850 | ATKA16 | -14.4 | -15.6 | -12.3 | -11.9 | -2.1 | 0.64 | 0.14 | 0.06 | 0.04 | 0.65 | 0.13 | 0.05 | 0.04 | 0.65 | 0.18 | 0.06 | 0.04 | 0.64 | 0.23 | 0.05 | 0.04 | 0.65 | 0.12 | 0.05 | 0.04 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | ||||||
2017-05-30T14:50 | -70.607333 | -7.578000 | ATKA21 | -14.6 | -16.8 | -11.3 | -10.5 | -2.0 | 0.82 | -0.03 | 0.10 | 0.03 | 0.71 | 0.08 | 0.12 | 0.03 | 0.71 | 0.11 | 0.10 | 0.04 | 0.73 | 0.08 | 0.10 | 0.04 | 0.71 | 0.09 | 0.10 | 0.04 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | ||||||
2017-05-30T14:16 | -70.615500 | -7.484250 | ATKA24 | -14.9 | -16.6 | -11.2 | -9.8 | -2.1 | 0.70 | 0.79 | 0.11 | 0.04 | 0.70 | 0.06 | 0.11 | 0.04 | 0.70 | 0.05 | 0.09 | 0.04 | 0.69 | 0.04 | 0.10 | 0.04 | 0.71 | 0.05 | 0.11 | 0.04 | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | ||||||
2017-05-30T16:55 | -70.582407 | -7.944267 | Buoys | -14.6 | -17.2 | -9.6 | -6.0 | -2.0 | 0.80 | 0.17 | 0.66 | -0.16 | slush; measurement corresponds to Atka07-East; thermistor chain was let into this hole. | Conductivities were measured directly in the field. Surface temperatures were measured with IR thermometers. | |||||||||||||||||||||
2017-06-12T16:45 | -70.578107 | -8.053735 | ATKA03 | 1.02 | 0.02 | 0.26 | 0.01 | Please note the changed position! It was moved south to sample thermodynamically grown ice and not to be under the influence of the iceberg in the north. | Test drive for the EM31 with corresponding test drillings. | ||||||||||||||||||||||||||
2017-06-12T18:00 | -70.582450 | -7.944417 | ATKA07 | 1.06 | 0.10 | 0.72 | -0.12 | Test drive for the EM31 with corresponding test drillings. | |||||||||||||||||||||||||||
2017-06-12T19:10 | -70.609619 | -8.138613 | Shelf200 | 0.80 | 1.00 | 0.48 | -0.07 | Test drive for the EM31 with corresponding test drillings. | |||||||||||||||||||||||||||
2017-06-18T13:31 | -70.582450 | -7.944417 | ATKA07 | -24.4 | -25.9 | -11.9 | -5.8 | -2.0 | 1.11 | 0.12 | 0.52 | -0.05 | no slush | 1.09 | 0.17 | 0.52 | -0.10 | slush; water on sea ice already before drilling | 1.03 | 0.20 | 0.59 | -0.12 | Slush, water on the ice, piled up ice floe hidden in the snow and near the borehole | 1.12 | 0.11 | 0.44 | -0.07 | slush, water on the ice | 1.10 | 0.06 | 0.55 | -0.10 | slush, water on the ice, water sample | Conductivity measurements should be taken with caution, as slush ice, which could have influenced the measurements, was usually in the drilling channel during the measurements. | |
2017-06-18T12:40 | -70.591533 | -7.824533 | ATKA11 | -25.4 | -27.3 | -17.4 | -14.5 | -2.2 | 0.80 | 0.17 | 0.19 | 0.05 | water sample | 0.94 | 0.01 | 0.07 | 0.06 | 0.85 | 0.04 | 0.19 | 0.03 | 0.82 | 0.01 | 0.11 | 0.04 | 0.80 | 0.09 | 0.17 | 0.05 | Conductivity measurements should be taken with caution, as slush ice, which could have influenced the measurements, was usually in the drilling channel during the measurements. | |||||
2017-06-18T11:56 | -70.599250 | -7.701850 | ATKA16 | -24.4 | -26.3 | -15.9 | -13.4 | -2.2 | 0.86 | 0.30 | 0.17 | 0.04 | 0.88 | 0.26 | 0.10 | 0.05 | 0.83 | 0.14 | 0.20 | 0.04 | 0.86 | 0.12 | 0.26 | 0.03 | 0.85 | 0.25 | 0.12 | 0.04 | Conductivity measurements should be taken with caution, as slush ice, which could have influenced the measurements, was usually in the drilling channel during the measurements. | ||||||
2017-06-18T11:15 | -70.607333 | -7.578000 | ATKA21 | -25.1 | -26.4 | -16.9 | -13.9 | -2.2 | 0.89 | 0.42 | 0.32 | 0.03 | 0.85 | 0.30 | 0.18 | 0.04 | 0.89 | 0.32 | 0.37 | 0.04 | 0.88 | 0.42 | 0.09 | 0.04 | 0.88 | 0.34 | 0.11 | 0.04 | Conductivity measurements should be taken with caution, as slush ice, which could have influenced the measurements, was usually in the drilling channel during the measurements. | ||||||
2017-06-18T10:39 | -70.615500 | -7.484250 | ATKA24 | -23.6 | -24.9 | -17.6 | -15.2 | -2.2 | 0.88 | 0.03 | 0.10 | 0.04 | 0.85 | 0.16 | 0.19 | 0.04 | 0.86 | 0.08 | 0.13 | 0.04 | 0.89 | 0.10 | 0.09 | 0.04 | 0.86 | 0.04 | 0.09 | 0.04 | Conductivity measurements should be taken with caution, as slush ice, which could have influenced the measurements, was usually in the drilling channel during the measurements. | ||||||
2017-06-19T07:13 | -70.574750 | -8.045700 | ATKA03 | -19.6 | -20.0 | -13.8 | -11.2 | -2.2 | 1.12 | 0.20 | 0.24 | 0.06 | 1.02 | 0.04 | 0.19 | 0.05 | water sample | 1.03 | 0.14 | 0.26 | 0.07 | Salinometer was pushed approx. 1m into the drill channel | 1.33 | 0.07 | 0.29 | 0.10 | bore hole filled up with slush | 0.71 | 0.48 | 0.21 | 0.08 | Salinometer was pushed approx. 1m into the drill channel | This measurement completes the series of 18.06.2017, which had to be shortened due to technical problems. | ||
2017-07-14T14:00 | -70.613507 | -8.120407 | Shelf1000 | -33.4 | -32.0 | -18.5 | -14.4 | -2.3 | 1.23 | 1.79 | 0.27 | 0.08 | |||||||||||||||||||||||
2017-07-17T11:30 | -70.609619 | -8.138613 | Shelf200 | -27.3 | -27.5 | -15.7 | -9.7 | -2.2 | 1.18 | 2.34 | 0.67 | 0.00 | Holes on Shelf200 and Shelf300 were drilled by hand after two drills broke. | ||||||||||||||||||||||
2017-07-17T11:02 | -70.610056 | -8.136275 | Shelf300 | -26.5 | -27.3 | -15.4 | -10.8 | -2.2 | 1.06 | 1.55 | 0.46 | 0.00 | first signs of platelet ice at 251 cm | Holes on Shelf200 and Shelf300 were drilled by hand after two drills broke. | |||||||||||||||||||||
2017-07-17T10:47 | -70.610531 | -8.133960 | Shelf400 | -26.5 | -27.2 | -16.9 | -10.5 | -2.1 | 1.10 | 1.34 | 0.45 | 0.05 | first signs of platelet ice at 280 cm | Holes on Shelf200 and Shelf300 were drilled by hand after two drills broke. | |||||||||||||||||||||
2017-07-17T10:30 | -70.611011 | -8.131651 | Shelf500 | -26.2 | -29.6 | -18.8 | -13.5 | -2.1 | 1.30 | 1.91 | 0.32 | 0.03 | Holes on Shelf200 and Shelf300 were drilled by hand after two drills broke. | ||||||||||||||||||||||
2017-07-17T10:15 | -70.613507 | -8.120407 | Shelf1000 | -25.7 | -28.0 | -19.5 | -14.0 | -2.2 | 1.21 | 1.75 | 0.30 | 0.05 | first signs of platelet ice at 570 cm | Holes on Shelf200 and Shelf300 were drilled by hand after two drills broke. | |||||||||||||||||||||
2017-07-20T15:00 | -70.574750 | -8.045700 | ATKA03 | -24.0 | -23.1 | -18.7 | -14.9 | -2.1 | 1.35 | 0.21 | 0.26 | 0.04 | first signs of platelet ice at 3.81 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||||||||
2017-07-20T13:55 | -70.582450 | -7.944417 | ATKA07 | -24.7 | -25.5 | -15.5 | -7.7 | -2.1 | 1.34 | 0.46 | 0.84 | -0.12 | During the platelet ice measurement, no slow transition (increasing resistance) could be noticed at this point, but a hard edge | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||||||||
2017-07-20T13:00 | -70.591533 | -7.824533 | ATKA11 | -24.1 | -24.1 | -20.4 | -15.0 | -2.1 | 1.07 | 0.32 | 0.20 | 0.07 | first signs of platelet ice at 3.35 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||||||||
2017-07-20T12:29 | -70.599250 | -7.701850 | ATKA16 | -24.2 | -24.5 | -18.9 | -14.8 | -2.2 | 1.15 | 0.90 | 0.22 | 0.04 | first signs of platelet ice at 2.82 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||||||||
2017-07-20T11:48 | -70.607333 | -7.578000 | ATKA21 | -25.3 | -25.3 | -19.8 | -15.5 | -2.2 | 1.17 | 2.03 | 0.23 | 0.07 | first signs of platelet ice at 4.45 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||||||||
2017-07-20T10:43 | -70.615500 | -7.484250 | ATKA24 | -25.2 | -29.0 | -21.0 | -19.8 | -2.2 | 1.20 | 0.64 | 0.10 | 0.07 | 0.07 | 0.11 | 0.08 | 1.24 | 0.53 | 0.09 | -0.07 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. Due to technical problems, all drilling was done by hand and therefore reduced to one hole per position. | |||||||||||||||
2017-08-08T09:45 | -70.609619 | -8.138613 | Shelf200 | -21.4 | -29.7 | -11.1 | -6.8 | -2.2 | 1.20 | 4.14 | 1.15 | -0.23 | first signs of platelet ice at 5.27 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. | |||||||||||||||||||||
2017-08-08T10:05 | -70.610056 | -8.136275 | Shelf300 | -20.5 | -28.0 | -11.2 | -7.1 | -2.1 | 1.10 | 3.09 | 0.77 | -0.15 | first signs of platelet ice at 5.86 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. | |||||||||||||||||||||
2017-08-08T10:20 | -70.610531 | -8.133960 | Shelf400 | -20.6 | -24.0 | -11.6 | -8.0 | -2.1 | 1.18 | 3.09 | 0.49 | 0.00 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. | ||||||||||||||||||||||
2017-08-08T10:38 | -70.611011 | -8.131651 | Shelf500 | -20.5 | -23.5 | -12.2 | -8.8 | -2.1 | 1.42 | 2.70 | 0.57 | -0.05 | first signs of platelet ice at 6.90 m | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. | |||||||||||||||||||||
2017-08-08T10:58 | -70.613507 | -8.120407 | Shelf1000 | -20.6 | -23.0 | -12.3 | -9.2 | -2.0 | 1.34 | 2.56 | 0.45 | 0.00 | High resistance in the measuring hole due to platelet ice, so that only the striking platelet ice boundary could be measured | All conductivities refer to a temperature of 20°C. Surface temperatures were measured with IR thermometers. | |||||||||||||||||||||
2017-08-17T17:40 | -70.574750 | -8.045700 | ATKA03 | -37.1 | -37.0 | -19.5 | -11.5 | -2.1 | 1.47 | 1.96 | 0.51 | 0.01 | 1.45 | 1.77 | 0.41 | 0.01 | 1.39 | 1.77 | 0.52 | 0.00 | 1.47 | 2.07 | 0.60 | 0.00 | 1.49 | 1.80 | 0.42 | 0.04 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||||
2017-08-17T15:30 | -70.582450 | -7.944417 | ATKA07 | -31.9 | -34.7 | -14.3 | -7.0 | -2.0 | 1.41 | 1.95 | 1.00 | -0.11 | 1.45 | 1.15 | 1.20 | -0.17 | 1.31 | 1.30 | 1.10 | -0.26 | 1.30 | 1.00 | 0.90 | -0.17 | 1.37 | 1.00 | 1.20 | -0.20 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||||
2017-08-17T14:35 | -70.591533 | -7.824533 | ATKA11 | -33.8 | -33.5 | -22.1 | -16.0 | -2.1 | 1.77 | 1.06 | 0.18 | 0.10 | 1.41 | 0.73 | 0.35 | 0.05 | 2.07 | 1.50 | 0.20 | 0.14 | 1.51 | 0.94 | 0.35 | 0.07 | 1.74 | 1.11 | 0.28 | 0.10 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||||
2017-08-17T13:35 | -70.599250 | -7.701850 | ATKA16 | -31.6 | -33.3 | -19.8 | -14.2 | 6.7 | 1.27 | 1.00 | 0.28 | 0.04 | 1.36 | 0.91 | 0.27 | 0.02 | 1.25 | 0.99 | 0.37 | 0.02 | 1.24 | 1.15 | 0.22 | 0.03 | 1.29 | 0.97 | 0.26 | 0.01 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||||
2017-08-17T12:45 | -70.607333 | -7.578000 | ATKA21 | -29.9 | -34.0 | -20.7 | -16.3 | -2.1 | 1.37 | 1.30 | 0.23 | 0.12 | 1.33 | 1.12 | 0.22 | 0.06 | 1.27 | 1.60 | 0.28 | 0.02 | 1.35 | 1.19 | 0.23 | 0.03 | 1.39 | 1.40 | 0.23 | 0.04 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||||
2017-08-17T11:05 | -70.615500 | -7.484250 | ATKA24 | -28.8 | -34.7 | -19.4 | -14.9 | -2.1 | 1.44 | 0.63 | 0.22 | 0.06 | first signs of platelet ice at 1.23 m | 1.39 | 0.58 | 0.25 | 0.08 | 1.39 | 0.68 | 0.23 | 0.07 | 1.40 | 0.83 | 0.48 | 0.07 | first signs of platelet ice at 1.77 m | 1.40 | 1.97 | 0.14 | 0.06 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured at Atka11-Atka24 with the IR thermometer (IR measuring range down to -30°C), otherwise with the insertion thermometer (testo). | ||||
2017-09-20T16:05 | -70.609619 | -8.138613 | Shelf200 | -30.8 | -31.3 | -8.7 | -2.0 | 2.14 | 4.27 | 1.80 | -0.76 | 70cm slush already before drilling | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer (testo). | ||||||||||||||||||||||
2017-09-20T15:35 | -70.610056 | -8.136275 | Shelf300 | -30.3 | -31.1 | -12.3 | -6.6 | -2.0 | 1.27 | 4.76 | 1.44 | -0.21 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer (testo). | ||||||||||||||||||||||
2017-09-20T14:53 | -70.610531 | -8.133960 | Shelf400 | -29.0 | -29.5 | -13.4 | -7.5 | -2.0 | 1.35 | 4.37 | 1.22 | -0.18 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer (testo). | ||||||||||||||||||||||
2017-09-20T16:40 | -70.611011 | -8.131651 | Shelf500 | -30.3 | -31.3 | -13.2 | -8.3 | -2.0 | 2.11 | 3.99 | 1.07 | -0.13 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer (testo). | ||||||||||||||||||||||
2017-09-20T17:05 | -70.613507 | -8.120407 | Shelf1000 | -30.7 | -31.4 | -16.8 | -9.6 | -2.1 | 1.51 | 3.62 | 0.61 | -0.01 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer (testo). | ||||||||||||||||||||||
2017-09-21T17:15 | -70.574750 | -8.045700 | ATKA03 | -25.8 | -25.9 | -19.0 | -10.1 | -2.1 | 1.63 | 0.73 | 0.58 | -0.04 | 1.48 | 0.82 | 0.60 | -0.07 | 1.43 | 0.86 | 0.70 | -0.14 | 1.55 | 0.60 | 0.59 | -0.09 | 1.61 | 0.63 | 0.51 | -0.05 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-09-21T15:43 | -70.582450 | -7.944417 | ATKA07 | -26.6 | -27.3 | -12.9 | -7.4 | -2.1 | 1.59 | 1.72 | 2.08 | -0.38 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||||||||||||||||||
2017-09-21T14:45 | -70.591533 | -7.824533 | ATKA11 | -27.1 | -28.0 | -22.9 | -16.9 | -2.1 | 1.10 | 3.17 | 0.30 | 0.14 | 1.76 | 1.73 | 0.29 | 0.03 | 2.17 | 1.70 | 0.30 | 0.17 | 2.96 | 1.00 | 0.39 | 0.12 | 1.74 | 1.83 | 0.30 | 0.10 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-09-21T14:10 | -70.599250 | -7.701850 | ATKA16 | -27.0 | -25.5 | -21.3 | -17.8 | -2.1 | 1.58 | 1.30 | 0.17 | 0.12 | 1.58 | 1.27 | 0.21 | 0.02 | 1.44 | 1.64 | 0.26 | 0.03 | 1.47 | 1.38 | 0.16 | 0.07 | 1.54 | 1.42 | 0.17 | 0.04 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-09-21T13:30 | -70.607333 | -7.578000 | ATKA21 | -26.4 | -27.2 | -20.7 | -12.8 | -2.1 | 1.57 | 1.50 | 0.50 | 0.00 | 1.65 | 1.41 | 0.44 | -0.01 | 1.47 | 1.90 | 0.45 | -0.04 | 1.65 | 1.62 | 0.48 | 0.00 | 1.64 | 1.38 | 0.48 | 0.00 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-09-21T12:40 | -70.615500 | -7.484250 | ATKA24 | -25.4 | -32.9 | -21.3 | -17.3 | -2.0 | 1.61 | 0.69 | 0.16 | 0.11 | 1.59 | 0.58 | 0.30 | 0.10 | 1.51 | 0.72 | 0.18 | 0.10 | 1.60 | 0.83 | 0.22 | 0.12 | 1.66 | 1.01 | 0.15 | 0.09 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. At Atka07 the snow ablation was very high. | Due to the influence of the iceberg located approx. 800m to the east, an abnormal amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-10-25T15:25 | -70.574750 | -8.045700 | ATKA03 | -12.4 | -8.7 | -9.2 | -6.0 | -2.0 | 1.74 | 1.18 | 1.14 | -0.21 | 1.73 | 1.18 | 1.10 | -0.20 | 1.61 | 1.52 | 1.14 | -0.20 | 1.62 | 0.87 | 1.20 | -0.25 | 1.72 | 1.45 | 1.16 | -0.20 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-10-25T13:00 | -70.582450 | -7.944417 | ATKA07 | -8.2 | -2.4 | -2.1 | 1.48 | 3.99 | 3.30 | -1.80 | Slush ice with a thickness of 180 cm was also assumed as freeboard, boundary layer temperature snow/ice measured at interface slush/water. | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. | ||||||||||||||||||||||
2017-10-25T12:50 | -70.591533 | -7.824533 | ATKA11 | -14.1 | -10.6 | -14.7 | -10.0 | -2.0 | 2.14 | 3.29 | 0.50 | 0.04 | 1.93 | 3.06 | 0.55 | 0.03 | 2.27 | 2.99 | 0.44 | 0.06 | 1.94 | 2.85 | 0.44 | 0.05 | 1.87 | 2.86 | 0.51 | 0.05 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-10-25T12:06 | -70.599250 | -7.701850 | ATKA16 | -15.5 | -14.0 | -12.0 | -7.9 | -2.0 | 1.67 | 2.56 | 0.50 | 0.00 | 1.75 | 2.62 | 0.58 | 0.00 | 1.63 | 2.64 | 0.55 | 0.00 | 1.57 | 2.48 | 0.50 | -0.02 | 1.71 | 2.57 | 0.52 | 0.00 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-10-25T11:25 | -70.607333 | -7.578000 | ATKA21 | -15.2 | -13.6 | -11.0 | -6.7 | -1.8 | 1.69 | 2.33 | 0.94 | -0.16 | 1.72 | 2.86 | 0.99 | -0.16 | 1.70 | 2.79 | 0.88 | -0.08 | 1.81 | 3.14 | 0.77 | -0.10 | 1.80 | 2.82 | 0.95 | -0.12 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. | |||||
2017-10-25T10:35 | -70.615500 | -7.484250 | ATKA24 | -14.8 | -13.3 | -15.0 | -11.3 | -2.0 | 1.94 | 1.46 | 0.20 | 0.09 | brown water | 1.77 | 1.46 | 0.25 | 0.10 | braunes Wasser | 1.69 | 1.66 | 0.30 | 0.07 | brown water | 1.68 | 1.71 | 0.47 | 0.10 | brown water | 1.81 | 1.79 | 0.24 | 0.09 | brown water | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. Snow temperatures refer to the middle of the snow pack. | At Atka7 the amount of snow was very high Due to the influence of the iceberg located approx. 800m to the east, an abnormally high amount of snow has been added since the last measurement compared to the surrounding area. |
2017-10-27T16:55 | -70.609619 | -8.138613 | Shelf200 | -8.8 | -8.2 | -2.8 | -2.8 | -2.0 | 2.42 | 11.10 | 1.90 | -0.55 | Slush: 55 cm, boundary layer temperature snow/ice at the interface snow/slush, hard edge platelet ice at 582 cm, given value at first detection of platelet ice | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |||||||||||||||||||||
2017-10-27T16:50 | -70.610056 | -8.136275 | Shelf300 | -8.7 | -8.4 | -6.5 | -3.7 | -2.0 | 1.46 | 12.33 | 2.05 | -0.78 | Slush: 78 cm, boundary layer temperature snow/ice at the interface snow/slush, hard edge platelet ice at 541 cm, given value at first detection of platelet ice | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |||||||||||||||||||||
2017-10-27T16:10 | -70.610531 | -8.133960 | Shelf400 | -8.9 | -7.5 | -9.3 | -5.8 | -2.0 | 1.95 | 12.46 | 1.78 | -0.23 | Slush: 20 cm, hard edge platelet ice at 549 cm, above value at first detection | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |||||||||||||||||||||
2017-10-27T15:39 | -70.611011 | -8.131651 | Shelf500 | -9.1 | -8.4 | -9.0 | -5.8 | -2.0 | 1.93 | 7.00 | 1.50 | -0.20 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||||||||||||||||||
2017-10-27T15:24 | -70.613507 | -8.120407 | Shelf1000 | -8.6 | -8.1 | -10.3 | -6.4 | -2.0 | 1.66 | 4.48 | 0.83 | -0.03 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||||||||||||||||||
2017-11-20T12:34 | -70.574750 | -8.045700 | ATKA03 | -6.1 | -4.0 | -7.1 | -4.3 | -1.9 | 1.82 | 2.23 | 1.11 | -0.17 | 2.12 | 1.86 | 1.17 | -0.19 | 1.61 | 2.60 | 1.08 | -0.16 | first signs of platelet ice at 5.50 m | 1.73 | 2.35 | 1.10 | -0.19 | 1.82 | 1.95 | 1.06 | -0.20 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |||||
2017-11-20T14:20 | -70.591533 | -7.824533 | ATKA11 | -5.8 | -5.5 | -8.9 | -6.8 | -2.0 | 2.27 | 5.20 | 0.62 | 0.12 | 1.97 | 4.40 | 0.69 | 0.07 | 2.56 | 4.51 | 0.55 | 0.08 | 2.22 | 4.25 | 0.57 | 0.10 | 1.82 | 4.05 | 0.70 | 0.00 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-11-20T15:10 | -70.599250 | -7.701850 | ATKA16 | -5.0 | -4.4 | -4.9 | -6.7 | -2.0 | 1.72 | 5.32 | 0.42 | 0.02 | 1.81 | 4.05 | 0.56 | -0.01 | 1.65 | 4.30 | 0.59 | -0.02 | 1.77 | 4.00 | 0.46 | 0.05 | 1.82 | 4.00 | 0.59 | 0.01 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-11-20T16:10 | -70.607333 | -7.578000 | ATKA21 | -5.9 | -8.8 | -7.5 | -5.4 | -2.0 | 1.81 | 4.05 | 1.14 | -0.16 | 1.80 | 4.40 | 1.15 | -0.17 | 1.76 | 4.05 | 1.15 | -0.16 | 1.87 | 4.45 | 1.14 | -0.15 | 1.99 | 3.70 | 1.10 | -0.18 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-11-20T17:05 | -70.615500 | -7.484250 | ATKA24 | -6.1 | -6.7 | -6.3 | -7.4 | -2.0 | 1.77 | 2.35 | 0.20 | 0.12 | Brown deposit in drilling mud | 1.82 | 2.60 | 0.34 | 0.12 | Brown deposit in drilling mud | 1.72 | 2.65 | 0.29 | 0.10 | Brown deposit in drilling mud | 1.87 | 2.55 | 0.26 | 0.13 | Brown deposit in drilling mud | 1.87 | 2.40 | 0.20 | 0.10 | Brown deposit in drilling mud | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |
2017-12-24T09:10 | -70.574750 | -8.045700 | ATKA03 | -1.5 | -0.2 | -3.0 | -3.3 | -1.9 | 1.99 | 1.17 | 1.15 | -0.23 | 1.97 | 0.95 | 1.16 | -0.35 | 1.72 | 1.21 | 1.29 | -0.30 | 1.77 | 1.80 | 1.20 | -0.30 | 1.97 | 1.22 | 0.98 | -0.25 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-12-24T10:50 | -70.591533 | -7.824533 | ATKA11 | -0.4 | -0.3 | -3.9 | -4.1 | -1.9 | 2.39 | 5.87 | 0.91 | 0.00 | 1.94 | 5.34 | 0.80 | -0.08 | 2.12 | 1.43 | 0.88 | -0.05 | 2.23 | 3.15 | 0.82 | -0.04 | 1.98 | 2.10 | 0.99 | -0.04 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-12-24T12:00 | -70.599250 | -7.701850 | ATKA16 | 0.0 | 0.7 | -3.7 | -3.7 | -1.8 | 1.76 | 3.05 | 0.60 | -0.06 | 1.83 | 3.00 | 0.82 | -0.04 | 1.72 | 3.05 | 0.63 | -0.05 | 1.93 | 3.14 | 0.58 | 0.00 | 1.85 | 2.75 | 0.68 | -0.07 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | ||||||
2017-12-24T12:45 | -70.607333 | -7.578000 | ATKA21 | 2.6 | 0.6 | -3.0 | -3.1 | -1.8 | 1.89 | 3.93 | 1.05 | -0.18 | 1.93 | 3.62 | 1.18 | -0.22 | drilled before snow/ice boundary layer measured --> no temperature of this boundary layer | 1.89 | 3.43 | 1.10 | -0.15 | 1.92 | 3.60 | 1.20 | -0.20 | 1.95 | 3.36 | 1.00 | -0.16 | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. | |||||
2017-12-24T13:45 | -70.615500 | -7.484250 | ATKA24 | 3.0 | -0.5 | -3.2 | -3.6 | -1.8 | 1.91 | 2.46 | 0.33 | 0.11 | brown deposits in drilling mud | 1.87 | 4.37 | 0.26 | 0.09 | brown deposits in drilling mud | 1.80 | 4.42 | 0.39 | 0.09 | 1.86 | 2.46 | 0.45 | 0.12 | brown deposits in drilling mud | 1.96 | 2.41 | 0.33 | 0.11 | brown deposits in drilling mud | All conductivities refer to a temperature of 20°C. Surface temperatures were measured exclusively with the insertion thermometer. |