Wright, Andrew P (2012): (Table 1) Ice thickness of new subglacial lakes identified in the ICECAP RES data and of previously known subglacial lakes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.842053, Supplement to: Wright, Andrew P; Young, Duncan A; Roberts, Jason L; Schroeder, Dustin M; Bamber, Jonathan L; Dowdeswell, Julian A; Young, Neal W; Le Brocq, Anne M; Warner, Roland C; Payne, Antony J; Blankenship, Donald D; van Ommen, Tas D; Siegert, Martin J (2012): Evidence of a hydrological connection between the ice divide and ice sheet margin in the Aurora Subglacial Basin, East Antarctica. Journal of Geophysical Research, 117(F1), F01033, https://doi.org/10.1029/2011JF002066
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Subglacial hydrology in East Antarctica is poorly understood, yet may be critical to the manner in which ice flows. Data from a new regional airborne geophysical survey (ICECAP) have transformed our understanding of the topography and glaciology associated with the 287,000 km**2 Aurora Subglacial Basin in East Antarctica. Using these data, in conjunction with numerical ice sheet modeling, we present a suite of analyses that demonstrate the potential of the 1000 km-long basin as a route for subglacial water drainage from the ice sheet interior to the ice sheet margin. We present results from our analysis of basal topography, bed roughness and radar power reflectance and from our modeling of ice sheet flow and basal ice temperatures. Although no clear-cut subglacial lakes are found within the Aurora Basin itself, dozens of lake-like reflectors are observed that, in conjunction with other results reported here, support the hypothesis that the basin acts as a pathway allowing discharge from subglacial lakes near the Dome C ice divide to reach the coast via the Totten Glacier.
Further details:
Wright, Andrew P; Siegert, Martin J (2011): The identification and physiographical setting of antarctic subglacial lakes: An update based on recent discoveries. In: Antarctic Subglacial Aquatic Environments (eds M. J. Siegert and M. C. Kennicutt), American Geophysical Union, Washington, D. C., 192
Project(s):
Coverage:
Median Latitude: -73.066500 * Median Longitude: 123.406080 * South-bound Latitude: -75.980514 * West-bound Longitude: 100.818180 * North-bound Latitude: -70.433461 * East-bound Longitude: 135.005142
Event(s):
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Comment | Comment | Wright, Andrew P | |||
| 5 | Identification | ID | Wright, Andrew P | Tally No., corresponds to the catalog numbers proposed by Wright and Siegert (2011) | ||
| 6 | Record length | Length | m | Wright, Andrew P | of record; # = +4000 | |
| 7 | Ice thickness | Ice thick | m | Wright, Andrew P |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
76 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Comment | 5 ID | 6 Length [m] | 7 Ice thick [m] |
|---|---|---|---|---|---|---|
| R03Wa_1 | -70.433461 | 130.398686 | New Subglacial Lakes | 388 | 2150 | 3910 |
| R04Ea_9 | -71.620702 | 135.005142 | New Subglacial Lakes | 389 | 3500 | 2790 |
| R05Ea_4 | -71.666198 | 128.119159 | New Subglacial Lakes | 390 | 750 | 3284 |
| R05Ea_5 | -71.842993 | 129.054823 | New Subglacial Lakes | 391 | 1950 | 3750 |
| R06Wa_4 | -72.884014 | 127.041169 | New Subglacial Lakes | 392 | 1000 | 3869 |
| R07Ea_9 | -73.438228 | 126.023279 | New Subglacial Lakes | 393 | 1250 | 3707 |
| R07Ta_1 | -73.814169 | 125.655172 | New Subglacial Lakes | 394 | 1800 | 3644 |
| R08Wa_0.1 | -74.290807 | 122.585428 | New Subglacial Lakes | 395 | 3350 | 3745 |
| R08Wa_0.2 | -74.300259 | 122.502928 | New Subglacial Lakes | 396 | 1200 | 3709 |
| R13Ea_8 | -75.980514 | 106.045218 | New Subglacial Lakes | 397 | 3500 | 3521 |
| R15Ea_4 | -74.083950 | 100.818180 | New Subglacial Lakes | 398 | 5650 | 3523 |
| Totten_2 | -70.806000 | 110.610000 | New Lines Over Previously Known Subglacial Lakes | 375 | 6500 | 3942 |
| SPRI-33 | -74.002000 | 118.473000 | New Lines Over Previously Known Subglacial Lakes | 30 | 8650 | 4084 |
| Lake_Aurora | -74.492000 | 119.267000 | New Lines Over Previously Known Subglacial Lakes | 31 | 16000 | 4066 |
| Lake_Concordia | -74.098000 | 125.191000 | New Lines Over Previously Known Subglacial Lakes | 6 | 39500 | 4065 |
| SPRI-28/63 | -73.075000 | 127.829000 | New Lines Over Previously Known Subglacial Lakes | 25 | #28100 | 4050 |
| SPRI-36 | -71.734123 | 128.472623 | New Lines Over Previously Known Subglacial Lakes | 33 | 1550 | 3142 |
| SPRI-37 | -71.692307 | 128.259010 | New Lines Over Previously Known Subglacial Lakes | 34 | 950 | 2928 |
| Lake_L1 | -74.008784 | 133.364704 | New Lines Over Previously Known Subglacial Lakes | 141 | 6800 | 4200 |