Baseline Thematic Mapping Present Land Use Version 1 Spatial Layer

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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

This layer represents Land use polygons as determined by a combination of analytic techniques, mostly using Landsat 5 image mosaics . BTM 1 was done on a federal satellite image base that was only accurate to about 250m. The images were geo-corrected, not ortho-corrected, so there is distortion in areas of high relief. This is not a multipart feature

Data and Resources

Dataset Extent

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

Additional Information

Purpose

Land Information specialists frequently use BTM as a critical comprehensive baseline inventory of human activity and natural resources. BTM can be used to monitor land use activities and is a mandatory input into the Land Resource Management Plans (LRMP) process.

Lineage Statement

Original data was generated in PAMAP GIS, and translated into BCSAIF format in the late 1990s. The original NTS ESRI shape files were loaded into ArcStorm at BC MELP Information Management Branch. At that time they were reprojected and tiled into a BCAlbers Provincial coverage.

Contact Information

NameMalcolm Gray (pointOfContact)
Emailmalcolm.gray@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 2019-05-04
Resource Status completed

Object Description

Object Name: WHSE_BASEMAPPING.BTM_PRESENT_LAND_USE_V1_SVW

Short Name: BTM_PLU_V1

Column Name Short Name Data Type Data Precision Comments
PRESENT_LAND_USE_V1_ID PLU_VI_ID NUMBER 10
FEATURE_CODE FEAT_CODE VARCHAR2 10
MEAN_ELEVATION MEAN_ELEVN NUMBER 4
MINIMUM_ELEVATION MIN_ELEVTN NUMBER 4
MAXIMUM_ELEVATION MAX_ELEVTN NUMBER 4
ELEVATION_STD_DEV EL_STD_DEV NUMBER 4
MEAN_SLOPE_DEGREES MEAN_SL_DE NUMBER 2
MINIMUM_SLOPE_DEGREES MIN_SL_DEG NUMBER 2
MAXIMUM_SLOPE_DEGREES MAX_SL_DEG NUMBER 2
SLOPE_STD_DEV_DEGREES SLP_STDDEG NUMBER 2
PERCENT_ASPECT_NORTH PCNT_NORTH NUMBER 3
PERCENT_ASPECT_NORTHEAST PCNT_NEAST NUMBER 3
PERCENT_ASPECT_EAST PCNT_EAST NUMBER 3
PERCENT_ASPECT_SOUTHEAST PCNT_SEAST NUMBER 3
PERCENT_ASPECT_SOUTH PCNT_SOUTH NUMBER 3
PERCENT_ASPECT_SOUTHWEST PCNT_SWEST NUMBER 3
PERCENT_ASPECT_WEST PCNT_WEST NUMBER 3
PERCENT_ASPECT_NORTHWEST PCNT_NWEST NUMBER 3
PERCENT_ASPECT_FLAT PCNT_FLAT NUMBER 3
PRESENT_LAND_USE_LABEL PLU_LABEL VARCHAR2 100
PRESENT_LAND_USE_DESCRIPTION PLU_DESCRP VARCHAR2 1000
MINIMUM_AREA_MAPPED MIN_AR_MAP NUMBER 3
FEATURE_AREA_SQM NUMBER 19
FEATURE_LENGTH_M NUMBER 19
GEOMETRY GEOMETRY SDO_GEOMETRY 64
OBJECTID OBJECTID NUMBER 38
SE_ANNO_CAD_DATA BLOB 4000