An accumulation of boulders, stones or other debris carried and deposited by a glacier. Data Dictionary for moraine_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-moraine_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Sand: crushed rock, shells etc smaller than 2mm in size Data Dictionary for sand_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-sand_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Ice stream; a current of ice in an ice sheet or ice cap that flows more rapidly than the surrounding ice,usually flowing to the ocean or to an ice shelf and not constrained by exposed rock. Data Dictionary for ice_stream_cl: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-ice_stream_cl.html This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Ice cliff edge; any vertical wall of ice eg. a very steep surface bounding a glacier or mass of shelf ice; the cliffed edge of an ice sheet or glacier on a land surface or the cliffs at the seaward floating edge of a glacier or ice shelf. Data Dictionary for ice_cliff_edge: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-ice_cliff_edge This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Area of dry or relatively dry land surrounded by water or low wetland Data Dictionary for island_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-island_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Disturbed ice area edge; designated where the presence of seracs, criss-crossed crevasses and skauk are in such numerous quantities that is is difficult to separate one ice formation from another. Data Dictionary for distice_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-distice_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Glacial lake boundary; a lake fed by meltwater, or forming in glacier ice because of differential melting, or one confined by a morainal dam, or held in a bedrock basin produced by glacial erosion. Data Dictionary for glacial_lake_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-glacial_lake_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

A crack or fissure in a glacier resulting from stress; may be 20m wide and 45 metres deep and several hundred metres long. Data Dictionary for crevasse_cl: https://docs.topo.linz.govt.nz/data-dictionary/tdd-class-crevasse_cl.html This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

An isolated rock or rock formation between high and low tides. Data Dictionary for rock_pnt: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-rock_pnt This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

This layer contains the DEM for LiDAR data from the Kaikoura area captured in 2012. The DSM is available as layer [Canterbury - Kaikoura Lidar 1m DSM (2012)](http://data.linz.govt.nz/layer/3545). The index tiles are available as layer [Canterbury - Kaikoura Lidar Index Tiles (2012)](http://data.linz.govt.nz/layer/3570). The LAS point cloud and vendor project reports are available from [OpenTopography](http://opentopo.sdsc.edu/datasets). Lidar was captured for Environment Canterbury Regional Council by Aerial Surveys in 2012. Note that this capture was prior to the significant vertical and horizontal displacements from the 2016 Kaikoura earthquakes. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes the Kaikoura township area and adjacent coastal strips. Data management and distribution is by Land Information New Zealand. Data comprises: •DEM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout •DSM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout •Point cloud: las tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout Data was collected at >1 pulse/square metre pulse density. Attributes include: -Elevation -Intensity values -Return number -Adjusted GPS time -Classification Vertical accuracy specification is +/-0.2m (@ 95% confidence) Vertical datum is NZVD2016