Mapped Floodplains in BC (Historical) - Study Area Limits
263 views (3 recent)Published by the Ministry of Environment and Climate Change Strategy - Knowledge Management
Licensed under Open Government Licence - British Columbia
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Limits of study areas for floodplain boundaries are provided to support broad based floodplain management reviews and land use planning
Hardcopy Floodplain mapping (1:5,000)digitized by Resources Inventory Branch (MoELP) GIS Unit, September 1998-January 1999.
|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_BASEMAPPING.CWB_FLOODPLAINS_LIMIT_LINE_SP
Short Name: CWBFP_L_SP
Comments: FLOODPLAINS LIMIT LINE SP spatial definition consists of lines representing the extent of the floodplain study area. This is necessary for liability purposes as the extent of the floodplain may go beyond the limit of the study. This layer will store line with FEATURE CODE =WA17101000 that make up the upstream of downstream limit of the floodplain study area. This is not a multipart feature.
|Column Name||Short Name||Data Type||Data Precision||Comments|
|FLOODPLAINS_LIMIT_LINE_ID||FP_LL_ID||NUMBER||10||Primary unique numeric identifier for a feature.|
|FEATURE_CODE||FEAT_CODE||VARCHAR2||10||A standard alphanumeric code to identify the type of feature represented by the spatial data. A feature code is most importantly a means of linking a feature to its name and definition. For example, the code GB15300120 on a digital geographic feature links it to the name "Lake - Dry" with the definition "A lake bed from which all water has drained or evaporated." The feature code does NOT mark when it was digitized, what dataset it belongs to, how accurate it is, what it should look like when plotted, or who is responsible for updating it. It only says what it represents in the real world. It also doesn't even matter how the lake is represented. If it is a very small lake, it may be stored as a point feature. If it is large enough to have a shape at the scale of data capture, it may be stored as an outline, or a closed polygon. The same feature code still links it to the same definition.|
|LABEL||LABEL||VARCHAR2||14||LABEL is a text indicating "LIMIT OF STUDY". This text was added for liability purposes to ensure users knew the extent of the floodplain study area.|
|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|