Sun, Sainan; Hattermann, Tore; Pattyn, Frank; Drews, Reinhard; Berger, Sophie (2019): Time series of basal melt rates of the Roi Baudouin Ice Shelf, Antarctica (4hours) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.903181, In: Sun, S et al. (2019): Time series of basal melt rates of the Roi Baudouin Ice Shelf, Antarctica [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.903182
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Ice shelves play a crucial role in helping controlling the current rate of mass loss from the Antarctic ice sheet through their buttressing potential. This control is modulated by variations in ice shelf mass balance, which cause changes in the thickness of the ice shelf, and therefore in its ability to restrain flow from the grounded ice sheet. We present results showing temporal variability in sub-shelf melting using autonomous phase-sensitive radio-echo sounders (ApRES) near the grounding line of the Roi Baudouin Ice Shelf, Dronning Maud Land, East Antarctica. When combined with additional oceanographic evidence of seasonal variation in stratification and the amplification of the diurnal tides around the Gunnerus Bank, the results suggest an intricate mechanism in which topographic waves control the seasonal melt rate variability near the grounding line of the Roi Baudouin Ice Shelf.
Related to:
Sun, Sainan; Hattermann, Tore; Pattyn, Frank; Nicholls, Keith W; Drews, Reinhard; Berger, Sophie (2019): Topographic Shelf Waves Control Seasonal Melting Near Antarctic Ice Shelf Grounding Lines. Geophysical Research Letters, 46(16), 9824-9832, https://doi.org/10.1029/2019GL083881
Coverage:
Latitude: -70.433300 * Longitude: 24.316600
Date/Time Start: 2016-01-15T18:06:53 * Date/Time End: 2016-12-20T23:13:10
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Sun, Sainan | Geocode – t1 | ||
| 2 | DATE/TIME | Date/Time | Sun, Sainan | Geocode – t2 | ||
| 3 | Time in days | Time | days | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | between t1 and t2 |
| 4 | Ice draft | Draft | m | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | at t1 |
| 5 | Ice draft | Draft | m | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | at t2 |
| 6 | Strain rate, vertical | Strain rate vert | m/a | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | |
| 7 | Strain rate, error | Strain rate e | ± | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | |
| 8 | Melt rate | Melt rate | m/a | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | |
| 9 | Melt rate, error | Melt rate e | ± | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | |
| 10 | Displacement | DIS | mm | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | of ice draft between t1 and t2 |
| 11 | Displacement | DIS | mm | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | ice draft due to vertical strain |
| 12 | Displacement, error | Displacement e | ± | Sun, Sainan | Autonomous phase-sensitive radio-echo sounder (ApRES) | ice draft due to vertical strain |
| 13 | Coefficient | Coeff | Sun, Sainan | M(1): constant coefficient in the linear fit | ||
| 14 | Coefficient | Coeff | Sun, Sainan | M(2): slope coefficient in the linear fit | ||
| 15 | Number | No | Sun, Sainan | nmatch: number of internal layers used for linear fit | ||
| 16 | Number | No | Sun, Sainan | dphase: phase change between time 2 and time 1 | ||
| 17 | Correlation coefficient | R | Sun, Sainan | corR: correlation coefficient for the range array and the displacement array of internal layers (to evaluate how good is the linear fit) | ||
| 18 | Probability | Prob | Sun, Sainan | corP: p-value for the range array and the displacement array of internal layers (to evaluate how good is the linear fit) | ||
| 19 | Depth, relative | Depth rel | m | Sun, Sainan | zeroShift: depth at which fit offset is zero |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
136833 data points
Download Data
View dataset as HTML (shows only first 2000 rows)