Freshwater Atlas Watersheds

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Published by the Ministry of Forests, Lands, Natural Resource Operations and Rural Development - GeoBC
Licensed under Open Government Licence - British Columbia

All fundamental watershed polygons generated from watershed boundary lines, bank edges, delimiter edges, coastline edges, and administrative boundary edges

Data and Resources

Dataset Extent

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

Additional Information

Purpose

This spatially-based information is typically used in allocation decisions, boundary definitions, planning processes and environmental monitoring, by internal and external stakeholders.

Lineage Statement

Automated, mathematical and statistical algorithms were applied against the TRIM I stream network and the TRIM I elevation surface model.

Contact Information

NameGeoBC Inquiries (pointOfContact)
EmailGeoBCInfo@gov.bc.ca
OrganizationMinistry of Forests, Lands, Natural Resource Operations and Rural Development
Sub-OrganizationGeoBC

Access & Security

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

Metadata Information

Record Published 2011-03-09
Record Last Modified 2019-09-05
Resource Status onGoing

Object Description

Object Name: WHSE_BASEMAPPING.FWA_WATERSHEDS_POLY

Short Name: FWWTRSHDSP
Comments: Contains all watershed polygons generated from principal watershed boundary lines, bank edges, delimiter edges, coastline edges and administrative boundary edges, following the 1:50K datamodel. May contain multipart geometries. Spatial type: multipart geometry

Column Name Short Name Data Type Data Precision Comments
WATERSHED_FEATURE_ID WTRSHDFTRD NUMBER 18 A unique identifier for each watershed in the layer.
WATERSHED_GROUP_ID WTRSHDGRPD NUMBER 18 An automatically generate id that uniquely identifies the watershed group feature.
WATERSHED_TYPE WTRSHDTP VARCHAR2 1 The type of watershed. This has yet to be determined for FWA version 2.0.0, but possible values may include: 'R' - real watershed, 'F' - face unit watershed, 'W' - waterbody watershed, etc.
GNIS_ID_1 GNIS_ID_1 NUMBER 10 The first BCGNIS (BC Geographical Names Information System) feature id associated with the watershed key of the principal watershed.
GNIS_NAME_1 GNSNM1 VARCHAR2 80 The first BCGNIS (BC Geographical Names Information System) name associated with the watershed key of the principal watershed.
GNIS_ID_2 GNIS_ID_2 NUMBER 10 The second BCGNIS (BC Geographical Names Information System) feature id associated with the watershed key of the principal watershed.
GNIS_NAME_2 GNSNM2 VARCHAR2 80 The second BCGNIS (BC Geographical Names Information System) name associated with the watershed key of the principal watershed.
GNIS_ID_3 GNIS_ID_3 NUMBER 10 The third BCGNIS (BC Geographical Names Information System) feature id associated with the watershed key of the principal watershed.
GNIS_NAME_3 GNSNM3 VARCHAR2 80 The third BCGNIS (BC Geographical Names Information System) name associated with the watershed key of the principal watershed.
WATERBODY_ID WTRBDD NUMBER 10 If the principal watershed is made up of a lake or river, this field will contain the waterbody id associated with that waterbody, otherwise it will be null.
WATERBODY_KEY WTRBDK NUMBER 10 If the principal watershed is made up of a lake or river, this field will contain the waterbody key associated with that waterbody, otherwise it will be null.
WATERSHED_KEY WTRSHDK NUMBER 10 The watershed key associated with the watershed polygon (and watershed code).
FWA_WATERSHED_CODE FWWTRSHDCD VARCHAR2 143 The 143 character watershed code associated with the watershed polygon.
LOCAL_WATERSHED_CODE LCLWTRSHDC VARCHAR2 143 A 143 character code similar to the fwa watershed code that further subdivides remnant polygons to provide an approximate location along the mainstem.
WATERSHED_GROUP_CODE WTRSHDGRPC VARCHAR2 4 The watershed group code associated with the polygon.
LEFT_RIGHT_TRIBUTARY LFTRGHTTRB VARCHAR2 7 A value attributed via the watershed code to all watersheds indicating on what side of the watershed they drain into.
WATERSHED_ORDER WTRSHDRDR NUMBER 10 The maximum order of the watershed key associated with the principal watershed polygon.
WATERSHED_MAGNITUDE WTRSHDMGNT NUMBER 10 The maximum magnitude of the watershed key associated with the principal watershed.
LOCAL_WATERSHED_ORDER LCLWTRSHDR NUMBER 10 The order associated with the local watershed code.
LOCAL_WATERSHED_MAGNITUDE LCLWTRSHDM NUMBER 10 The magnitude associated with the local watershed code.
AREA_HA AREA_HA NUMBER 38 Area of the watershed, in hectares.
RIVER_AREA RIVER_AREA NUMBER 38 Area of double line rivers within the watershed, in hectares.
LAKE_AREA LAKE_AREA NUMBER 38 Area of lakes within the watershed, in hectares.
WETLAND_AREA WTLNDR NUMBER 38 Area of wetland features within the watershed, in hectares.
MANMADE_AREA MNMDR NUMBER 38 Area of manmade features within the watershed, in hectares.
GLACIER_AREA GLCRR NUMBER 38 Area of glacier features within the watershed, in hectares.
AVERAGE_ELEVATION VRGLVTN NUMBER 15 The average elevation of the watershed, in meters.
AVERAGE_SLOPE VRGSLP NUMBER 15 The average slope of the watershed.
ASPECT_NORTH SPCTNRTH NUMBER 15 The percentage of the watershed that has an aspect within 45 degrees of north, ie. an aspect between 315 and 45 degrees.
ASPECT_SOUTH SPCTSTH NUMBER 15 The percentage of the watershed that has an aspect within 45 degrees of south, ie. an aspect between 135 and 225 degrees.
ASPECT_WEST SPCTWST NUMBER 15 The percentage of the watershed that has an aspect within 45 degrees of west, ie. an aspect between 225 and 315 degrees.
ASPECT_EAST SPCTST NUMBER 15 The percentage of the watershed that has an aspect within 45 degrees of east, ie. an aspect between 45 and 135 degrees.
ASPECT_FLAT SPCTFLT NUMBER 15 The percentage of the watershed with no discernable aspect, ie. the flat land.
FEATURE_CODE FTRCD VARCHAR2 10 FEATURE CODE contains a value based on the Canadian Council of Surveys and Mapping's (CCSM) system for classification of geographic features.
GEOMETRY GEOMETRY SDO_GEOMETRY 1
OBJECTID OBJECTID NUMBER 38
SE_ANNO_CAD_DATA BLOB 4000
FEATURE_AREA_SQM FEAT_AREA 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