Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

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.

RIS CitationBibTeX CitationShow MapGoogle Earth

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.
Keyword(s):
1 year time series; ApRES; basal ice shelf melt rates; ice-ocean interaction
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):
RoiBaudoin_IceShelf * Latitude: -70.433300 * Longitude: 24.316600 * Location: Antarctica * Method/Device: Multiple investigations (MULT)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeSun, SainanGeocode – t1
2DATE/TIMEDate/TimeSun, SainanGeocode – t2
3Time in daysTimedaysSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)between t1 and t2
4Ice draftDraftmSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)at t1
5Ice draftDraftmSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)at t2
6Strain rate, verticalStrain rate vertm/aSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)
7Strain rate, errorStrain rate e±Sun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)
8Melt rateMelt ratem/aSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)
9Melt rate, errorMelt rate e±Sun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)
10DisplacementDISmmSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)of ice draft between t1 and t2
11DisplacementDISmmSun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)ice draft due to vertical strain
12Displacement, errorDisplacement e±Sun, SainanAutonomous phase-sensitive radio-echo sounder (ApRES)ice draft due to vertical strain
13CoefficientCoeffSun, SainanM(1): constant coefficient in the linear fit
14CoefficientCoeffSun, SainanM(2): slope coefficient in the linear fit
15NumberNoSun, Sainannmatch: number of internal layers used for linear fit
16NumberNoSun, Sainandphase: phase change between time 2 and time 1
17Correlation coefficientRSun, SainancorR: correlation coefficient for the range array and the displacement array of internal layers (to evaluate how good is the linear fit)
18ProbabilityProbSun, SainancorP: p-value for the range array and the displacement array of internal layers (to evaluate how good is the linear fit)
19Depth, relativeDepth relmSun, SainanzeroShift: depth at which fit offset is zero
Size:
136833 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)