Shore Unit Classifications - Line

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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

The Shore Unit Classifications Lines depict the most current Shorezone mapping lines for the Province of British Columbia. Shorezone is an aerial imaging, habitat classification, and mapping system used to inventory alongshore and across-shore geomorphological and biological attributes of the coast. Habitat attributes are interpreted from oblique aerial imagery acquired during the lowest tides of the year.

Data and Resources

Dataset Extent

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

Additional Information

Purpose

The Shore Unit Classifications Lines depict the most current Shorezone mapping lines for the Province of British Columbia.

Data Quality

The British Columbia Coastal Resource Information System (CRIMS) is an internet based interactive map for viewing coastal and marine data. A wide variety of coast and marine resources are included, such as aquaculture, shoreline classification, selected fisheries information, and offshore oil and gas information. The development of the Coastal Resource Information System is ongoing. The application provides access to data currently held in the BC Geographic Warehouse. As additional layers are added to the BCGW, subsequent releases of the application will include these additional layers and further enhancements.

Lineage Statement

This dataset was formally a depiction of the SHZN_MAIN_SP warehouse layer.

More Information

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 2014-12-15
Record Last Modified 2019-05-10
Resource Status onGoing

Object Description

Object Name: WHSE_ENVIRONMENTAL_MONITORING.SHZN_SHORE_UNIT_CLASS_LINES_SV

Short Name: SU_CL_LN_S

Column Name Short Name Data Type Data Precision Comments
PHYIDENT PHYIDENT VARCHAR2 4000 PHYIDENT is a 13-character slash-delimited (/) concatenation of the shoreunits REGION, SECTION, UNIT and SUBUNIT that uniquely identifies the shoreunit for use in the shorezone mapping system, e.g., 01/02/0345/01.
REGION REGION NUMBER 2 REGION is a unique number assigned to a particular region. A region is a large subdivision area of a project used for administrative purposes. The regions are numbered 1 to 13, e.g., 1, 2, 3.
SECTION SECTION NUMBER 2 SECTION is a unique number assigned to a particular section of a region. A section is a subdivision of a region used for administrative purposes, e.g., 1, 2, 3.
UNIT UNIT NUMBER 4 UNIT is a number assigned to the primary unit of measure in the shorezone coverage. This main subdivision of a SECTION forms the "along-shore" physical unit. There are a maximum of 9,999 UNITS within a SECTION, i.e. 1324.
SUBUNIT SUBUNIT NUMBER 38 SUBUNIT is a number used to show the across-shore component of the shoreline. In the PHYIDENT, the SUBUNIT portion is at the end of the phyident and typically has a leading "0". A subunit of 00 signifies a homogeneous unit while subunits identified with 01, 02, etc. signify variants or anomalies in the unit, usually features that have only a short alongshore length, e.g., 0,1,2.
PROJECT_CODE PROJECT_CD VARCHAR2 6 PROJECT CODE is a unique three-to-six letter acronym code assigned to a particular very large administrative project area in the province of BC. Project codes are used for administrative purposes for the identification and grouping of regions and sections, e.g., WCVI (for West Coast Vancouver Island), MIDC (for MidCoast).
REP_TYPE REP_TYPE NUMBER 2 REP TYPE is a commonly-used abbreviated term for REPETITIVE SHORE TYPE, which is a descriptor code that loosely quantifies the shoreunit's COASTAL CLASSes in terms of geomorphology. The REP TYPE is stored as a number, e.g., 5.
REP_TYPE_NAME RP_TYP_NM VARCHAR2 50 REP TYPE NAME is a commonly-used shortened form of Repetitive Shoretype Name which is the name assigned to the repetitive shoretype. Repetitive shoretypes are a geomorphic descriptor used to quantify the shoreunit's overall character, e.g., Rock with Gravel Beach, Sand and gravel flat.
COASTAL_CLASS_NAME CSTL_CLSSM VARCHAR2 50 COASTAL CLASS NAME is the name given to a particular Coastal Class, which is a geomorphic descriptor of the shore unit that describes its overall texture, e.g., Rock with Gravel Beach > 10 m.
COASTAL_CLASS CSTL_CLSS NUMBER 2 COASTAL CLASS is a coded summary of shoreunit morphology and substrate in terms of one of 36 different criteria categories defined by a systematic consideration of substrate, sediment, width and slope. Using these categories, the Coastal Class is an indicator of repeatable collections of across-shore detail on the morphology and sediment components contained within the shoreunit. The Coastal Class is stored as a number, e.g., 5.
OIL_RESIDENCY_INDEX OL_RSDNCYX NUMBER 38 OIL RESIDENCY INDEX (also well-known as ORI) is a scaled index from 1 to 5 that indicates the length of time that oil will remain on a specific shoreline type and thus the severity of the oil spill in terms of time if no action is taken to clean up the spill. The value is populated from an algorithm that uses the exposure and coastal class. The value of 999 is used when the ORI is unknown. Unknown ORIs occur when the combination of exposure and coastal class produces a combination that is not found in nature, i.e., 1 (short: days to weeks), 2 (short-medium: weeks to months; emphasis on weeks), 3 (medium: weeks to months; emphasis on months), 4 (medium-long: months to years; emphasis on months), 5 (long: months to years; emphasis on years), 999 (na: combination should not occur).
OIL_RESIDENCY_NAME OL_RSDNCYM VARCHAR2 4000 OIL RESIDENCY NAME is the name given to the oil residency index and describes the severity of the ORI in terms relative to time. The name "na" is used when the ORI is not applicable, i.e., na, short, short-medium, medium, medium-long, long.
OIL_RESIDENCY_DEFINITION OL_RSDNCYN VARCHAR2 4000 OIL RESIDENCY DEFINITION describes the severity of the ORI in terms of days months and years, e.g., weeks to months; emphasis on weeks.
EXP_FINAL EXP_FINAL VARCHAR2 4000 EXP FINAL is a shortened commonly-used term for Final Exposure, which is a calculated one or two letter abbreviation that represents the 'best' available exposure code based on data confidence using the four other exposure types. An exposure code is a grade of the relative exposure to the elements in nature (primarily the ocean waves) that affect the shoreunit, e.g., SE (for Semi-exposed).
BIO_EXP_OBS B_XP_BS VARCHAR2 3 BIO EXP OBS is a shortened commonly-used term for the Observed Exposure type for this shoreunit as interpreted from a biological perspective: that is, an observation of the flora and fauna types was used to record the exposure for this shoreunit as only certain types of species can live in certain types of exposures, i.e., E (Exposed), P (Protected), SE (Semi-Exposed), SP (Semi-Protected), VE (Very Exposed), VP (Very Protected).
BIO_EXP_OBS_NAME B_XP_BS_NM VARCHAR2 50 BIO EXP OBS NAME is the commonly-used name for the Observed Exposure type for this shoreunit as interpreted from a biological perspective: that is, an observation of the flora and fauna types was used to record the exposure for this shoreunit as only certain types of species can live in certain types of exposures, i.e., Exposed, Protected, Semi-Exposed, Semi-Protected, Very Exposed, Very Protected.
EXP_OBS EXP_OBS VARCHAR2 3 EXP OBS is a shortened commonly-used term for Observed Exposure type, which is the grade of the relative exposure to the elements observed in the field that affect the shoreunit, i.e., E (Exposed), P (Protected), SE (Semi-Exposed), SP (Semi-Protected), VE (Very Exposed), VP (Very Protected).
EXP_OBS_NAME EXP_OBS_NM VARCHAR2 50 EXP OBS NAME is the commonly-used name for the Observed Exposure type, which is the grade of the relative exposure to the elements observed in the field that affect the shoreunit, i.e., Exposed, Protected, Semi-Exposed, Semi-Protected, Very Exposed, Very Protected.
BIO_EXP_CALC B_XP_CLC VARCHAR2 3 BIO EXP CALC is a shortened commonly-used term for the Calculated Exposure type for this shoreunit as interpreted from a biological perspective: that is, it is a Calculated (i.e. NOT an actual observation as is the case with BIO_EXP_OBS) of the flora and fauna types was used to record the exposure for this shoreunit as only certain types of species can live in certain types of exposures, i.e., E (Exposed), P Protected), SE (Semi-Exposed), SP (Semi-Protected), VE (Very Exposed), VP (Very Protected).
BIO_EXP_CALC_NAME B_XP_CLC_M VARCHAR2 50 BIO EXP CALC NAME is the commonly-used name for the Calculated Exposure type for this shoreunit as interpreted from a biological perspective: that is, it is a Calculated (i.e. NOT an actual observation as is the case with BIO_EXP_OBS) of the flora and fauna types was used to record the exposure for this shoreunit as only certain types of species can live in certain types of exposures, i.e., Exposed, Protected, Semi-Exposed, Semi-Protected, Very Exposed, Very Protected.
EXP_CALC EXP_CALC VARCHAR2 3 EXP CALC is a shortened commonly-used term for Calculated Exposure type, which is the grade of the relative exposure to the elements calculated from variables like the fetch data (not captured in the field) that affect the shoreunit, i.e., E (Exposed), P Protected), SE (Semi-Exposed), SP (Semi-Protected), VE (Very Exposed), VP (Very Protected).
EXP_CALC_NAME EXP_CLC_NM VARCHAR2 50 EXP CALC NAME is the commonly-used name for the Calculated Exposure type, which is the grade of the relative exposure to the elements calculated from variables like the fetch data (not captured in the field) that affect the shoreunit, i.e., Exposed, Protected, Semi-Exposed, Semi-Protected, Very Exposed, Very Protected.
SEDIMENT_DIRECTION SDMNT_DRCN VARCHAR2 3 SEDIMENT DIRECTION is the dominant alongshore direction of sediment transport expressed as one of eight Cardinal compass points, i.e., N, NE, E, SE, S, SW, W, NW.
NTS NTS VARCHAR2 15 NTS is the number(s) of the National Topographic Service map sheet that contains this shoreunit. Most shoreunits are contained on one NTS map but occasionally span several. In this case, the map numbering is condensed with forward slashes after the map block portion of the name followed by a comma-separated list of individual map numbers to a maximum of 3 map numbers, e.g., 92F.013 or 103A/16 (for a single map), 92F/07,10 (this means the NTS maps used for mapping were NTS 92F07 and 92F10).
SCALE SCALE VARCHAR2 12 SCALE is the map scale of the NTS map from which the linework was derived. Scale on a map is a ratio between a certain distance on the map and the distance on the ground, e.g., 50,000 means the map scale is 1:50000.
CHART CHART VARCHAR2 15 CHART is the literal number(s) assigned to any CHS (Canadian Hydrographic Service) chart used for mapping the shoreunit. Most shoreunits are contained on one CHS chart but occasionally span several. In this case, the chart numbering is condensed with forward slashes to a maximum of 3 chart numbers, e.g., 3824 (for a single chart), 3311/2 (this means the charts used for mapping were CHS chart 3311 and 3312) .
COMMENTS COMMENTS VARCHAR2 254 COMMENTS is a note or observation about this shoreunit, usually made in the field at the time of mapping but could be added after the fact by the person interpreting the field notes and doing the mapping, e.g., incorrect shoreline-man-made modification.
UNIT_KEY UNIT_KEY NUMBER 10 UNIT KEY is a unique numeric identifier that was assigned to each unit, numbered sequentially according to the project. NOTE: This field is deprecated and only used for legacy linkages.
MAX_DIRECTION MX_DRCTN NUMBER 3 MAX_DIRECTION is the azimuth direction (in degrees from true north) of the direction of the maximum wave fetch, e.g., 238.
MAX_FETCH MAX_FETCH NUMBER 7 MAX FETCH is the distance in kilometers of the maximum fetch as measured along the maximum fetch direction. Fetch is the open-water area offshore from the shoreunit over which waves can be generated by winds, e.g., 13.5, 110, 13565.
LEFT45 LEFT45 NUMBER 7 LEFT45 is the fetch distance in kilometers at a 45 degree angle to the left of the shore normal, e.g., 23.4, 5467.
PERPENDICULAR90 PRPNDCLR90 NUMBER 7 PERPENDICULAR90 is the fetch distance in kilometers measured along the shore normal (at 90 degrees), e.g., 23.4, 5467.
RIGHT45 RIGHT45 NUMBER 7 RIGHT45 is the fetch distance in kilometers at a 45 degree angle to the right of the shore normal, e.g., 23.4, 5467.
SHORENORMAL SHRNRML NUMBER 3 SHORENORMAL is the azimuth (in degrees from true north) of the normal to general orientation of the shoreunit. That is, if the general trend of the shoreline is from northwest to southeast with open water to the east, then the ShoreNormal Direction would be about 45 degrees, e.g., 38, 223.
EFT_FETCH EFT_FETCH NUMBER 8 EFT FETCH is a shortened commonly-used term for Effective Fetch, which is the distance in kilometers as computed from the fetch distance measurements. The modified effective fetch represents a simplification of the standard engineering procedures for estimating effective fetch, e.g., 11.35.
TIDE_LARGE TIDE_LARGE NUMBER 6 TIDE LARGE is a value in meters for the large tide as taken from the nearest reference station to the shoreunit. Values come from the Canadian Tide and Current Tables, published by the Canadian Hydrographic Service, e.g., 7.7, 5.27.
TIDE_MEAN TIDE_MEAN NUMBER 6 TIDE MEAN is a value in meters for the average tide as taken from the nearest reference station to the shoreunit. Values come from the Canadian Tide and Current Tables, published by the Canadian Hydrographic Service, e.g., 7.7, 5.27.
TIDE_STATION TD_STTN VARCHAR2 50 TIDE STATION is the name of the tidal reference station used for the tide large and mean values, as per the Canadian Tide and Current Tables, e.g., Shushartie Bay.
UNIT_TYPE_CODE UNT_TYP_CD VARCHAR2 4 UNIT TYPE CODE is a short code used to indicate the spatial makeup of the shoreunit, i.e., H (homogenous), V (variant), P (polygon).
UNIT_TYPE_DEF UNT_TYP_DF VARCHAR2 512 UNIT TYPE DEF is a shortened term for Unit Type Definition, which indicates the spatial makeup of the shoreunit, i.e., Homogenous, Variant, Polygon.
TIDE_TYPE_CODE TD_TYP_CD VARCHAR2 4 TIDE TYPE CODE is a unique alphabetic identifier for the type of tide that occurs within the shoreunit. Tide types are taken from the CHS Tide Tables, e.g., MSD (Mixed semi-diurnal), U (Unknown).
TIDE_TYPE_DEF TD_TYP_DF VARCHAR2 255 TIDE TYPE DEF is a shortened term for Tide Type Definition, which is the type of tide that occurs within the shoreunit as taken from the CHS Tide Tables, e.g., SemiDiurnal: two HW (High Water a.k.a. high tide) and two LW (Low Water a.k.a. low tide) occur each lunar day, each of approximately equal height.
CHANGE_TYPE_CODE CHNG_TYP_D VARCHAR2 2 CHANGE TYPE CODE is a unique short acronym based on the type of change occuring in the shoreunit. Change Type is an indication of a net accumulation of sediment over time, e.g., E (Erosional), S(Stable).
CHANGE_TYPE_NAME CHNG_TYP_M VARCHAR2 50 CHANGE TYPE NAME is the name given to a particular net accumulation of sediment over time, e.g., Erosional, Stable.
SEDIMENT_SOURCE_CODE SDMNT_SRCD VARCHAR2 5 SEDIMENT SOURCE CODE is a 1-character abbreviation of the source of the sediment (unconsolidated material) occuring in the shoreunit, i.e., A (Alongshore), B (Backshore), F (Fluvial), O (Offshore), U (Unknown).
SEDIMENT_SOURCE_NAME SDMNT_SRCM VARCHAR2 50 SEDIMENT SOURCE NAME is the name of the source of the sediment (unconsolidated material) occuring in the shoreunit, i.e., Alongshore, Backshore, Fluvial, Offshore, Unknown.
SEDIMENT_ABUNDANCE_CODE SDMNT_BNDD VARCHAR2 5 SEDIMENT ABUNDANCE CODE is a 1-character abbreviation of the amount of sediment that occurs within the shoreunit, i.e., A (Abundant), M (Moderate), S (Sparse).
SEDIMENT_ABUNDANCE_NAME SDMNT_BNDM VARCHAR2 50 SEDIMENT ABUNDANCE NAME is the name given to a specific qualitative index of the amount of sediment that occurs within the shoreunit, i.e., Abundant, Moderate, Sparse.
GROUP_NAME GROUP_NM VARCHAR2 50 GROUP NAME is the proper name assigned to the particular geographic grouping to which this shoreunit belongs, e.g., Kyuquot Sound.
SPECIFIER_NAME SPCFR_NM VARCHAR2 50 SPECIFIER NAME is a lower-level shoreunit name grouping that clarifies the shoreunit's geographic location, e.g., East side, Northern end.
SHORENAME_NAME SHRNM_NM VARCHAR2 50 SHORENAME_NAME is the proper geographic name assigned to a shoreunit, e.g., Meares Island.
ZONE ZONE VARCHAR2 1 ZONE is a unique alphabetic identifier based on the relative elevation of the component with respect to the intertidal zone, i.e., A (supratidal), B (intertidal), C (subtidal).
COMPONENT COMPONENT NUMBER 38 COMPONENT is an integer that represents a subdivision of the Zone sequenced from landward to seaward. The number 99 is used when the component is unknown, e.g., 1, 3, 99.
FORM FORM VARCHAR2 40 FORM is a string of form codes for each component. Form codes are descriptors of the morphological nature or surface expression within a component described by twelve primary form descriptors. Additional information on each of these upper-case primary form descriptors can be presented through the use of secondary lower-case form modifiers, e.g., Bt;Plfi;Plfs.
MATERIAL MATERIAL VARCHAR2 40 MATERIAL is a string of material codes for each component. Material codes are descriptors of the physical materials (like sediments or bedrock) within the component and are described by five primary material descriptors. Additional information on each of these primary materials can be presented through the use of secondary material modifiers, e.g., At/Cps;Cli.
FEATURE_LENGTH_M FEAT_LEN NUMBER 19 FEATURE LENGTH M is the system calculated length or perimeter of a geometry in meters.
OBJECTID OBJECTID NUMBER 38 OBJECTID is a column required by spatial layers that interact with ESRI ArcSDE. It is populated with unique values automatically by SDE.
SHAPE SHAPE SDO_GEOMETRY 1 SHAPE is the column used to reference the spatial coordinates defining the feature.
SE_ANNO_CAD_DATA ANNO_CAD 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.