Locations, outlines and ICESat-2 tracks of active lakes at the onset of the Jutulstraumen Glacier (Antarctica)
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2021
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| _version_ | 1867170104152686592 |
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| author | Neckel, Niklas Franke, Steven Helm, Veit |
| author_facet | Neckel, Niklas Franke, Steven Helm, Veit |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We analysed a 6 year time series of displacement maps from Sentinel-1 SAR interferometry in the upstream region of Dronning Maud Lands Jutulstraumen Glacier (Antarctica). Our results reveal short-term cascade-like events of subsidence and uplift of the ice surface, which we interpret as drainage and filling of subglacial water pockets. This indicates a periodic transport of subglacial water through an interconnected drainage system. The water re-location events in this study are located in a slow flowing region 225~km upstream of the grounding line. An examination of high-resolution ultra-wideband radar data and the hydropotential gradient reveals that subglacial water is moving downstream along a canyon-like system of local valleys. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_927120 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Locations, outlines and ICESat-2 tracks of active lakes at the onset of the Jutulstraumen Glacier (Antarctica) Neckel, Niklas Franke, Steven Helm, Veit AC; Aircraft; Antarctica; AWI UWB; DInSAR; Dronning Maud Land; Dronning Maud Land, Antarctica; ICESat-2; JuRaS, CHIRP; Jutulstraumen; Jutulstraumen_Glacier; MULT; Multiple investigations; P6_215_UWB_2018_1812220301; P6_215_UWB_2018_1812240401; P6_215_UWB_2018_1812260501; P6_215_UWB_2018_1812260602; P6_215_UWB_2018_1812270701; P6_215_UWB_2018_1812270802; P6-215_UWB_2018; POLAR 6; Sentinel-1; subglacial hydrology; subglacial lakes We analysed a 6 year time series of displacement maps from Sentinel-1 SAR interferometry in the upstream region of Dronning Maud Lands Jutulstraumen Glacier (Antarctica). Our results reveal short-term cascade-like events of subsidence and uplift of the ice surface, which we interpret as drainage and filling of subglacial water pockets. This indicates a periodic transport of subglacial water through an interconnected drainage system. The water re-location events in this study are located in a slow flowing region 225~km upstream of the grounding line. An examination of high-resolution ultra-wideband radar data and the hydropotential gradient reveals that subglacial water is moving downstream along a canyon-like system of local valleys. |
| title | Locations, outlines and ICESat-2 tracks of active lakes at the onset of the Jutulstraumen Glacier (Antarctica) |
| topic | AC; Aircraft; Antarctica; AWI UWB; DInSAR; Dronning Maud Land; Dronning Maud Land, Antarctica; ICESat-2; JuRaS, CHIRP; Jutulstraumen; Jutulstraumen_Glacier; MULT; Multiple investigations; P6_215_UWB_2018_1812220301; P6_215_UWB_2018_1812240401; P6_215_UWB_2018_1812260501; P6_215_UWB_2018_1812260602; P6_215_UWB_2018_1812270701; P6_215_UWB_2018_1812270802; P6-215_UWB_2018; POLAR 6; Sentinel-1; subglacial hydrology; subglacial lakes |
| url | https://doi.org/10.1594/PANGAEA.927120 |