Hydrology: Hydrologic Zone Boundaries of British Columbia
868 views (13 recent)Published by the Ministry of Environment and Climate Change Strategy - Knowledge Management
Licensed under Open Government Licence - British Columbia
Data and Resources
BC Geographic Warehouse Custom Downloadother
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To estimate streamflows, flooding, annual runoff
Hydrologic zone boundaries were digitized from 1:600,000 hardcopy maps. Coastline & islands were copied from 1:50K BC WSA. Linework updated January 2003. Polygons & Regions built September 20, 2004. Boundaries accuracy is +/- 1 kilometre based on hydrologic maps, graphical plots, & previous definitions.
|Name||Ashfaque Ahmed (pointOfContact)|
|Organization||Ministry of Environment and Climate Change Strategy|
Access & Security
|Who can view this dataset?||Public|
|Who can download this dataset?||Public|
|Record Last Modified||2021-09-28|
Object Name: WHSE_WATER_MANAGEMENT.HYDZ_HYDROLOGICZONE_SP
Short Name: HYD_BC_H_Z
Comments: Hydrologic zone boundaries were digitized from 1:600,000 hardcopy maps.
|Column Name||Short Name||Data Type||Data Precision||Comments|
|HYDROLOGICZONE_SP_ID||HYDZN_SPID||NUMBER||10||Primary unique numeric identifier for a Hydrological Zone Polygon.|
|FEATURE_CODE||FEAT_CODE||VARCHAR2||10||A standard numeric code to identify the type of feature represented by the spatial data.|
|HYDROLOGICZONE_NO||HYDZN_NO||NUMBER||10||A numeric identifier assigned to a zone that represents an area of homogenous hydrologic and geomorphological characteristics.|
|HYDROLOGICZONE_NAME||HYDZN_NAME||VARCHAR2||100||A descriptive name, assigned to a zone having a numeric identifier and that represents an area of homogenous hydrologic and geomorphological characteristics.|
|FEATURE_AREA_SQM||AREA_SQM||NUMBER||19||FEATURE_AREA_SQM is the system calculated area of a two-dimensional polygon in square meters|
|FEATURE_LENGTH_M||FEAT_LEN||NUMBER||19||FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters|
|GEOMETRY||GEOMETRY||SDO_GEOMETRY||1||GEOMETRY is the column used to reference the spatial coordinates defining the feature.|
|OBJECTID||OBJECTID||NUMBER||38||OBJECTID is a required attribute of feature classes and object classes in a geodatabase.|
|SE_ANNO_CAD_DATA||BLOB||4000||SE_ANNO_CAD_DATA is a binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.|