NZ Topo - object class crevasse_cl

This page describe the crevasse_cl object class used to represent objects in the NZTopo topographic database.


A crack or fissure in a glacier resulting from stress; may be 20m wide and 45 metres deep and several hundred metres long.

Ant50 description

In areas where there are a large number of crevasses, only a selection of the larger may be held in the data and shown on the maps

Representation specification

Representation specification showing crevasse_cl

Click to enlarge image

Important information: The absense of crevasse data does not necessarily indicate a crevasse-free area

See also: distice_poly

Class attributes

Attribute Value
Object class crevasse_cl
Entity class CREVASSE
Additional entity class Not applicable
Object inheritance simple_line
Entity source US Std Entity
Map series Ant50
LSLIFF object class 500

Object attributes

This object class does not have attributes.

Change log

Feature version Revised Description
3 2012-08-28 Updated map image and aerial view; added representation specification and example feature photographs
2 2001-11-23 Unspecified update
1 1999-03-01 intial status