Mapping of meltwater features and De Geer moraines in central Nunavut, Canada from the high-resolution (2 m) ArcticDEM
datasetposted on 15.05.2020 by Stephen Livingstone, Emma Lewington, Christopher Clark, Robert Storrar, Andrew Sole, Isabelle Mcmartin, Nico Dewald, Felix Ng
Datasets usually provide raw data for analysis. This raw data often comes in spreadsheet form, but can be any collection of data, on which analysis can be performed.
The dataset contains shapefiles of eskers, moraines, meltwater channels and meltwater corridors. Manual digitisation of eskers and other meltwater landforms (e.g. meltwater channels and subglacial meltwater corridors) was undertaken in ArcGIS 10.4 using hillshaded Digital Surface Models (DSMs) following standard practises. We used the 2 m ArcticDEM v7 mosaic to identify and map meltwater features. The outlines of esker beads were mapped as polygons at their break of slope, and esker ridge crestlines, moraine ridge crestlines, meltwater channel sides and subglacial meltwater corridor centrelines were mapped as polylines.
Emma Lewington was funded through a NERC doctoral training partnership ACCE DTP (NE/L002450/1)
PALGLAC (PI Chris Clark) - funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 787263)
EthicsThere is no personal data or any that requires ethical approval
PolicyThe data complies with the institution and funders' policies on access and sharing
Sharing and access restrictionsThe data can be shared openly
- The file formats are open or commonly used
Methodology, headings and units
- There is a readme.txt file describing the methodology, headings and units