Goeller, Sebastian; Steinhage, Daniel; Thoma, Malte; Grosfeld, Klaus (2023): Predicted subglacial lakes in Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964002
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Abstract:
This data set comprises the geographical coordinates of modelled outlines of 31 new subglacial lakes in Dronning Maud Land, Antarctica, using the general hydraulic potential equation (Shreve 1972), Bedmap2 data sets (Fretwell and others, 2013), and AWI airborne radio-echo sounding data collected between 1994–2013. The modelling was conducted in 2015 using the Bedmap2 bedrock topography and ice thickness data (Fretwell and others, 2013) at 5 km grid cell size. Determined sinks in the hydraulic potential were checked for coverage by AWI airborne radio-echo sounding data. Based on the structure of the subglacial reflexions, sinks were classified as subglacial lakes. The outline of like that identified subglacial lakes are presented here. Not all calculated sinks were covered by AWI airborne radio-echo sounding data.
Related to:
Goeller, Sebastian; Steinhage, Daniel; Thoma, Malte; Grosfeld, Klaus (2016): Assessing the subglacial lake coverage of Antarctica. Annals of Glaciology, 57(72), 109-117, https://doi.org/10.1017/aog.2016.23
References:
Fretwell, Peter; Pritchard, Hamish D; Vaughan, David G; Bamber, Jonathan L; Barrand, N E; Bell, Robin E; Bianchi, Cristina; Bingham, Robert G; Blankenship, Donald D; Casassa, Gino; Catania, Ginny A; Callens, Denis; Conway, Howard; Cook, A J; Corr, Hugh F J; Damaske, Detlef; Damm, Volkmar; Ferraccioli, Fausto; Forsberg, René; Fujita, Shuji; Gim, Y; Gogineni, S; Griggs, Jennifer; Hindmarsh, Richard C A; Holmlund, Per; Holt, John W; Jacobel, R W; Jenkins, Adrian; Jokat, Wilfried; Jordan, Tom A; King, E C; Köhler, Janna; Krabill, W; Riger-Kusk, M; Langley, Sean; Leitchenkov, German L; Leuschen, C; Luyendyk, Bruce P; Matsuoka, Kenichi; Mouginot, Jeremie P; Nitsche, Frank-Oliver; Nogi, Yoshifumi; Nøst, Ole Anders; Popov, Sergey V; Rignot, Eric; Rippin, David M; Rivera, A; Roberts, Jason L; Ross, Neil; Siegert, Martin J; Smith, Abigail M; Steinhage, Daniel; Studinger, Michael; Sun, B; Tinto, B K; Welch, Brian C; Wilson, D; Young, Duncan A; Xiangbin, C; Zirizzotti, A (2013): Bedmap2: improved ice bed, surface and thickness datasets for Antarctica. The Cryosphere, 7(1), 375-393, https://doi.org/10.5194/tc-7-375-2013
Shreve, Roland Lee (1972): Movement of Water in Glaciers. Journal of Glaciology, 11(62), 205-214, https://doi.org/10.3189/S002214300002219X
Project(s):
Coverage:
Median Latitude: -75.282853 * Median Longitude: 18.581093 * South-bound Latitude: -87.514174 * West-bound Longitude: -18.897783 * North-bound Latitude: -73.191252 * East-bound Longitude: 154.728115
Comment:
Each file basin_bedmap2_0nnnn.dat has 3 columns: longitude - latitude - constant (0.9)
RES lines format: YYYYPnnn
YYYY = year of collection (in Antarctica always the younger year)
P = radar system respectively Pulse (2 = 600 ns, coarse vertical resolution; 3 = 60 ns, higher vertical resolution)
nnn = counter; 000-499 = lines in Antarctica
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Identification | ID | Steinhage, Daniel | Tally | ||
| 2 | LATITUDE | Latitude | Steinhage, Daniel | Geocode | ||
| 3 | LONGITUDE | Longitude | Steinhage, Daniel | Geocode | ||
| 4 | Profile ID | Profile ID | Steinhage, Daniel | RES profile no/flight line | ||
| 5 | Shot number range | Shot number | Steinhage, Daniel | |||
| 6 | Text file | TEXT | Steinhage, Daniel | |||
| 7 | Text file (File Size) | TEXT (Size) | Bytes | Steinhage, Daniel |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
208 data points