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Hoppmann, Mario; Arndt, Stefanie; Behrens, Lisa K; Nicolaus, Marcel (2018): Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2013 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.889286

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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 (Lisa Behrens) and Julia Regnery, both of the overwintering team.
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: -70.597498 * Median Longitude: -14.736697 * South-bound Latitude: -70.615920 * West-bound Longitude: -70.607840 * North-bound Latitude: -70.575210 * East-bound Longitude: 7.840210
Date/Time Start: 2013-04-28T00:00:00 * Date/Time End: 2014-01-17T16:58:00
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeArndt, StefanieGeocode – start, UTC
LATITUDELatitudeArndt, StefanieGeocode
LONGITUDELongitudeArndt, StefanieGeocode
Sample code/labelSample labelArndt, Stefanie
Air temperature at 2 m heightT2°CArndt, StefanieDigital thermometer
Temperature, airTTT°CArndt, StefanieDigital thermometersurface
Temperature, ice/snowt°CArndt, StefanieDigital thermometerSnow surface
Temperature, ice/snowt°CArndt, StefanieDigital thermometerSnow-ice interface
Temperature, waterTemp°CArndt, StefanieDigital thermometer
10 Sea ice thicknessEsEsmArndt, StefanieRuler stick (RULER)Center
11 Sub-ice platelet-layer thicknessSIPLmArndt, StefanieRuler stick (RULER)Center
12 Snow thicknessSnow thickmArndt, StefanieRuler stick (RULER)Center
13 FreeboardFreeboardmArndt, StefanieRuler stick (RULER)Center
14 CommentCommentArndt, StefanieRuler stick (RULER)Center
15 Sea ice thicknessEsEsmArndt, StefanieRuler stick (RULER)North
16 Sub-ice platelet-layer thicknessSIPLmArndt, StefanieRuler stick (RULER)North
17 Snow thicknessSnow thickmArndt, StefanieRuler stick (RULER)North
18 FreeboardFreeboardmArndt, StefanieRuler stick (RULER)North
19 CommentCommentArndt, StefanieRuler stick (RULER)North
20 Sea ice thicknessEsEsmArndt, StefanieRuler stick (RULER)East
21 Sub-ice platelet-layer thicknessSIPLmArndt, StefanieRuler stick (RULER)East
22 Snow thicknessSnow thickmArndt, StefanieRuler stick (RULER)East
23 FreeboardFreeboardmArndt, StefanieRuler stick (RULER)East
24 CommentCommentArndt, StefanieRuler stick (RULER)East
25 Sea ice thicknessEsEsmArndt, StefanieRuler stick (RULER)South
26 Sub-ice platelet-layer thicknessSIPLmArndt, StefanieRuler stick (RULER)South
27 Snow thicknessSnow thickmArndt, StefanieRuler stick (RULER)South
28 FreeboardFreeboardmArndt, StefanieRuler stick (RULER)South
29 CommentCommentArndt, StefanieRuler stick (RULER)South
30 Sea ice thicknessEsEsmArndt, StefanieRuler stick (RULER)West
31 Sub-ice platelet-layer thicknessSIPLmArndt, StefanieRuler stick (RULER)West
32 Snow thicknessSnow thickmArndt, StefanieRuler stick (RULER)West
33 FreeboardFreeboardmArndt, StefanieRuler stick (RULER)West
34 CommentCommentArndt, StefanieRuler stick (RULER)West
35 CommentCommentArndt, Stefaniegeneral
36 Comment 2 (continued)Comm 2Arndt, Stefaniegeneral
37 Comment 3 (continued)Comm 3Arndt, Stefaniegeneral
Size:
578 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/Time
(start, UTC)

Latitude

Longitude

Sample label

T2 [°C]
(Digital thermometer)

TTT [°C]
(surface, Digital thermometer)

t [°C]
(Snow surface, Digital thermom...)

t [°C]
(Snow-ice interface, Digital t...)

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)
37 
Comm 3
(general)
2013-04-28T00:00-70.575210-8.049350ATKA03-18.7-17.5-16.4-3.42.924.310.100.353.104.700.030.33The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-04-28T12:20-70.583250-7.945530ATKA07-17.4-17.9-6.4-2.03.686.070.823.687.200.82Platelet ice 660/7203.604.970.100.33The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-04-28T14:30-70.6052707.840210ATKA11-15.9-15.7-2.7-2.11.207.200.290.05Platelet ice 607/7201.200.290.053.257.430.98Platelet ice 650/743The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-04-28T15:15-70.599800-70.607840ATKA16-16.5-16.8-11.2-2.22.543.300.470.050.243.300.470.051.200.200.10The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-04-28T16:20-70.607840-7.576830ATKA21-15.8-16.1-11.7-2.22.204.000.310.032.603.400.240.292.204.000.310.032.484.130.240.40The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-04-28T10:30Buoys-18.3-16.7-15.2-3.22.513.280.010.32The ice platelet gauge has broken twice at Atka03. Once the gauge could be saved and repaired so that it could be used again. The second time the tape measure had to be cut.On Atka07 it was not possible to determine the freeboard, because the snow cover was too big. Two different layers of platelet ice were visible. A slightly lower one with less resistance and a slightly higher one with more resistance.At Atka11 no platelet ice was measurable.
2013-05-30T16:30-70.575210-8.049350ATKA03-20.5-20.4-12.3-2.23.054.800.200.28
2013-05-30T14:30-70.583250-7.945530ATKA07-20.2-20.3-15.9snow ca 1m, ice thickness>3m, thick platelet ice layer4.001.13
2013-05-30T13:45-70.6052707.840210ATKA1118.9-19.1-13.5-1.91.700.600.03almost no platelet ice visible
2013-05-30T15:55-70.599800-70.607840ATKA16-18.7-18.8-16.4-1.92.803.300.740.03
2013-05-30T11:35-70.607840-7.576830ATKA21-18.8-19.0-15.4-2.12.704.200.750.05
2013-05-30T10:15-70.615920-7.482750ATKA24-18.9-19.1-13.2-2.12.352.600.340.202.333.060.320.222.302.850.380.20
2013-07-21T12:00-70.583250-7.945530ATKA07-32.5-36.5-29.63.358.401.100.40
2013-08-07T09:15-70.575210-8.049350ATKA03-17.2-17.1-16.5-2.13.205.900.080.323.406.700.070.33The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-07T10:45-70.583250-7.945530ATKA07-17.8-17.7-16.6-1.93.008.501.320.10Platelet ice 520/850The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-07T16:05-70.6052707.840210ATKA11-26.6-27.2-21.4-1.91.201.901.00-0.20The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-07T12:00-70.599800-70.607840ATKA16-21.5-22.8-17.1-1.92.605.501.00Platelet ice 290/550The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-07T14:55-70.607840-7.576830ATKA21-24.1-25.3-20.5-2.02.406.901.100.13The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-07T13:40-70.615920-7.482750ATKA24-20.7-21.8-19.2-2.12.205.000.600.10The sea ice between beginning and Atka07 was very difficult to navigate, especially between the shelf ice edge (west) and the iceberg between Atka03 and Atka07.The stretch between Atka07 and Atka16 was very well navigable. The closer one got to the shelf ice edge (east), the worse the conditions became again.
2013-08-24T12:00-70.575210-8.049350ATKA03-30.6-29.3-28.3-2.23.626.460.040.47At Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-08-24T10:00-70.583250-7.945530ATKA07-31.3-31.3-30.9-1.93.005.501.38negative freeboard, PE = 330/550At Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-08-24T15:15-70.6052707.840210ATKA11-34.6-33.8-29.7-2.01.403.600.90negative freeboardAt Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-08-24T10:15-70.599800-70.607840ATKA16-34.8-35.8-32.6-2.02.435.561.14negative freeboardAt Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-08-24T13:50-70.607840-7.576830ATKA21-32.6-32.0-33.1-1.92.307.101.300.00At Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-08-24T11:45-70.615920-7.482750ATKA24-32.2-31.6-30.5-2.12.215.390.550.14At Atka07 a lot of platelet ice, two layers of platelet ice visible.
2013-09-18T13:35-70.575210-8.049350ATKA03-27.8-28.7-28.1-2.63.807.400.330.39
2013-09-18T12:15-70.583250-7.945530ATKA07-28.7-29.8-30.5-1.93.808.901.350.10Platelet ice 890/500
2013-09-18T15:30-70.6052707.840210ATKA11-27.8-28.4-29.2-1.91.444.501.10-0.10
2013-09-18T09:50-70.599800-70.607840ATKA16-31.2-33.3-33.8-1.92.405.761.37-0.08
2013-09-18T14:10-70.607840-7.576830ATKA21-30.6-30.7-30.2-1.92.557.251.200.20
2013-09-18T11:35-70.615920-7.482750ATKA24-30.1-31.2-31.6-2.12.455.460.450.15
2013-10-08T11:40-70.575210-8.049350ATKA03-23.3-22.6-23.2-2.63.707.650.100.55freeboard and water temperature values not reliable due to high freeboard
2013-10-08T13:30-70.583250-7.945530ATKA07-22.3-23.6-24.7-2.14.359.751.490.30freeboard 30/35; platelet ice layer thicker than noted
2013-10-08T15:15-70.6052707.840210ATKA11-22.3-22.0-22.4-1.91.604.800.880.00
2013-10-08T15:10-70.599800-70.607840ATKA16-20.1-20.7-19.9-1.82.656.101.40-0.11
2013-10-08T16:30-70.607840-7.576830ATKA21-21.0-22.3-20.0-1.82.347.691.13-0.06Platelet ice 769/677
2013-10-08T17:45-70.615920-7.482750ATKA24-21.8-22.4-20.7-2.12.305.600.580.17
2013-11-19T09:30-70.575210-8.049350ATKA03-2.7-5.8-7.3-2.13.828.550.17at a depth of 1-1.5m: hard and solid ice, everywhere else soft ice; freeboard and water temperature values not reliable due to highly negative freeboard
2013-11-19T18:50-70.583250-7.945530ATKA07-5.4-7.5-5.4-1.83.008.351.760.01
2013-11-19T10:50-70.6052707.840210ATKA11-2.0-5.3-7.1-1.81.526.381.31-0.19sea ice surface wet and salty; sea ice wet
2013-11-19T18:00-70.599800-70.607840ATKA16-2.7-4.0-5.8-1.82.506.771.42-0.11
2013-11-19T12:00-70.607840-7.576830ATKA21-1.9-5.1-5.9-1.82.458.291.40-0.11ice lower than a meter sludgy
2013-11-19T13:30-70.615920-7.482750ATKA24-1.5-3.5-4.8-1.92.465.900.610.14
2013-12-16T19:50-70.575210-8.049350ATKA03-1.8-2.1-1.7-2.13.547.850.030.394.808.850.000.424.108.200.000.44
2013-12-16T21:50-70.6052707.840210ATKA11-2.6-2.7-1.9-1.81.596.631.21-0.20sea ice surface wet and crumbly
2013-12-16T22:45-70.599800-70.607840ATKA16-3.4-3.7-2.3-1.92.756.751.370.00
2013-12-16T23:30-70.607840-7.576830ATKA21-6.2-7.1-2.6-1.82.508.351.34-0.10ice thickness: 250 (471)
2013-12-16T00:30-70.615920-7.482750ATKA24-6.3-6.7-3.5-2.12.605.700.590.15algae layer below ice
2014-01-17T14:30-70.575210-8.049350ATKA03-2.20.20.13.447.690.210.10bore hole really fast refrozen
2014-01-17T16:30-70.583250-7.945530ATKA07-1.20.20.0-1.83.501.320.20ice thickness just a guess from the ice corer due to fast refreezing
2014-01-17T16:58-70.6052707.840210ATKA11-1.90.00.0-1.81.816.401.06-0.16
2014-01-17T00:00-70.607840-7.576830ATKA21-2.1-0.20.0-1.82.607.301.08-0.08
2014-01-17T00:00-70.615920-7.482750ATKA24-2.1-1.90.0-0.12.685.100.400.04