New Zealand Topographic Data Dictionary


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For more information contact the New Zealand National Topo/Hydro Authority. Please note: the metadata presented here is prior to changes agreed with ICSM members and is therefore subject to alteration. Please read the Explanatory Page for explanations of the fields, abbreviations and symbols which have been used.


Object_class Entity_class Additional entity class Object Inheritance
ice_vd_seed ICEFIELD Not applicable graphic_point
Object description
Ice void; a clear area inside an area of ice that is currently not captured as any other object; the internal boundary which is marked, delimits an area which is not defined as part of that polygon object.
Map image Digital data image

ice.jpg

ice.gif
Click to enlarge map Click to enlarge diagram
Comments
A void area is captured if no other 'real world' object is present. Ice and snow voids are treated as coincident objects.
Entity Source Classification Seed class Last updated Edition number
US Standard Entity 50k ant not_applicable 23/11/2001 3

Associated Objects

(Where applicable)

ice_vd_bdy
ice_vd_poly
ice_bdy
ice_poly
ice_seed
snow_bdy
snow_poly
snow_seed
sno_void_bdy
sno_void_poly
sno_void_seed

Object Attributes

(Where applicable)