Hydrology: Normal Annual Runoff Isolines (1961 - 1990) - Historical

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Published by the Ministry of Environment and Climate Change Strategy - Knowledge Management
Licensed under Open Government Licence - British Columbia

Normal Annual Runoff for 1961 - 1990, in mm

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.5° to -113.5°

Additional Information


Spatial layer intended to display normal annual runoff isolines, in millimetres, for 1961 -1990.

Lineage Statement

Isolines delineated as part of report titled 'British Columbia Streamflow Inventory - 1998' by H. Coulson & W. Obedkoff.

Contact Information

NameAshfaque Ahmed (pointOfContact)
OrganizationMinistry of Environment and Climate Change Strategy
Sub-OrganizationKnowledge Management

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2011-03-09
Record Last Modified 2019-12-17
Resource Status completed

Object Description


Short Name: HYD_NAR_LN
Comments: ANNUAL RUNOFF LINE SP represents the normal hydrometric annual runoff isoline in mm.

Column Name Short Name Data Type Data Precision Comments
ANNUAL_RUNOFF_LINE_ID NNLRNFFLND NUMBER 10 ANNUAL RUNOFF LINE ID is the primary unique numeric identifier for a feature.
FEATURE_CODE FTRCD VARCHAR2 10 FEATURE CODE is a 10 character alpha-numeric code based on the Canadian Council on Surveying and Mapping (CCSM) coding convention.
ANNUAL_RUNOFF_IN_MM NNLRNFFNMM NUMBER 5 ANNUAL RUNOFF IN MM is the normal annual runoff isoline for 1961 - 1990 in millimetres .
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.
FEATURE_LENGTH_M FEAT_LEN NUMBER 19 FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters