The internal drainage system of the lower Mittivakkat Glacier, Ammassalik Island, SE Greenland
Bibliographic Data
| ID | 9849909 |
|---|---|
| Authors | Sebastian H Mernild (0000-0003-0797-3975, University of Copenhagen, corresponding author) |
| Year | 2006 |
| Volume | 106 |
| Issue | 1 |
| Pages | 13-24 |
| Publication date | 2006-01-01 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Geografisk Tidsskrift-Danish Journal of Geography (JOURNAL) |
| Journal identifiers | ISSN: 0016-7223 • E-ISSN: 1903-2471 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/00167223.2006.10649542 |
| OpenAlex | W2059553006 |
| Language | EN |
| Citations received | 5 |
| References cited | 30 |
Geografisk Tidsskrift, Danish Journal of Geography 106(1):13–24, 2006 A dye-tracer technique was used to examine the spatial and the temporal size, structure and hydraulic response of the internal drainage system in the lower ablation area of the Mittivakkat Glacier, southeast Greenland. Eight dye-tracer tests were conducted at five active moulins during the last part of the ablation period, August 2004. The internal drainage system, about 300–685 m from the glacier terminus, consisted of two distinct internal drainage paths: one through a hydraulically efficient channelled (fast) drainage system, and another through a relatively hydraulically inefficient distributed (slow) system. The internal drainage system 0–300 m from the glacier terminus was drained by one conduit. It was observed that 100 m from the glacier watershed divide, dye return curves indicated transport of englacial and subglacial water to the nearby glacier catchment. Spatial transit velocity (fastest, dominating, and median transit velocities) decreased with increased transit distance, due to increased complexity and transit delay in the internal drainage paths; the fastest transit velocities variedfrom 0.18 to 0.37 m s−1, dominating transit velocities from 0.10 to 0.27 m s−1, and median transit velocities from 0.08 to 0.20 m s−1. The diurnal transit velocity increased with increasing discharge and vice versa, indicating a clockwise velocity-discharge hysteresis
Ablation zone · Accumulation zone · Drainage · Drainage basin · Drainage system (geomorphology · Geography · Geomorphology · Geotechnical engineering · Glacier · Glacier terminus · Greenland ice sheet · Hydrology (agriculture · Ice stream · Structural basin · Climate change and permafrost · Cryospheric studies and observations · Geology · Landslides and related hazards · Oceanography
Water flow through Mittivakkat Glacier, Ammassalik Island, SE Greenland
Hydrology, sediment transport and water resources of Ammassalik Island, SE Greenland
Meteorological observations 2004 at the Sermilik Station, Ammassalik Island, Southeast Greenland
The internal drainage system of the lower Mittivakkat Glacier, Ammassalik Island, SE Greenland
Landscape and sediment processes in a proglacial valley, the Mittivakkat Glacier area, Southeast Greenland
| Unique citing works | 5 |
|---|---|
| Citations per year | 0,25 |
| Citation span | 2006 - 2008 (3) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 5 |