82ffab1f-4755-4cd9-a8c3-98a4a0e59e7a urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2015-12-12T01:10:04 creation ISO 19115 2016 Windmill Islands 1:10000 Jokulhlaup Event near Casey winter 1985 GIS Dataset 82ffab1f-4755-4cd9-a8c3-98a4a0e59e7a This dataset is one of a number of datasets containing geomorphological data relating to the Windmill Islands, Wilkes Land, Antarctica. The dataset comprises of a digital single point coverage of a Jokulhlaup event near Casey Station (ie outburst of water from beneath a cold ice-cap terminus on Law Dome). This event was observed and documented by Dr Ian D Goodwin. The Jokulhlaup is represented as a point which is linked to a separate digital database (ie attribute tables) containing additional information. From the results of oxygen-isotope and solute analysis, the water was found to have originated as basal melt water. It contained a high total solute load with a dominant enrichment in alkalis, indicating that it has been squeezed through subglacial sediments for an extensive time period. This event represents one of the first known recordings in Antarctica and provides further insight into determining the subglacial hydrological regime beneath the Law Dome ice cap. {"type": "Polygon", "coordinates": [[[110.0, -67.0], [111.0, -67.0], [111.0, -66.0], [110.0, -66.0], [110.0, -67.0]]]} 110.0 111.0 -67.0 -66.0 AMD AMD-AU CEOS CONTINENT - ANTARCTICA - Windmill Islands EARTH SCIENCE - CRYOSPHERE - GLACIERS-ICE SHEETS - GLACIERS EARTH SCIENCE - LAND SURFACE - LAND USE-LAND COVER FIELD SURVEYS GEOGRAPHIC REGION - POLAR GEOMORPHOLOGY GIS GROUND-BASED OBSERVATIONS JOKULHLAUP WINDMILL ISLANDS Point of truth URL of this metadata record documentDigital Point of truth URL of this metadata record Download point for the data - shapefiles documentDigital Download point for the data - shapefiles SHP Public information for ASAC project 339 documentDigital Public information for ASAC project 339 Citation reference for this metadata record and dataset documentDigital Citation reference for this metadata record and dataset