Base Stream and Flow Representation

Identification Information:

Citation:

Citation Information:

Originator: Alberta Environment and Parks, Government of Alberta

Publication Date: 20000905

Title: Base Stream and Flow Representation

Geospatial Data Presentation Form: vector digital data

Publication Information:

Publication Place: Edmonton, Alberta

Publisher: Alberta Environment and Parks, Government of Alberta

Online Linkage: https://geospatial.alberta.ca/titan/rest/services/environment/base_water_feature/MapServer

File or Table Name: BASEFEAT.BF_HYDRO_SLNET_ARC

Description:

Abstract: The Single Line Hydrography Network (SLNET) contains all captured single line representations of hydrographic features. In addition, single line representations of polygonal features and single line arbitrary network connectors are in the file.

Purpose: The Single Line Network (SLNET) layer was designed to provide users with a connected network of single line hydrography.

Language of Dataset: en

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1981

Ending Date: 1996

Currentness Reference: ground condition

Status:

Progress: Complete

Maintenance and Update Frequency: As needed

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -121.000000

East Bounding Coordinate: -109.000000

North Bounding Coordinate: 61.000000

South Bounding Coordinate: 48.000000

Local Bounding Coordinates:

Left Bounding Coordinate: -121.000000

Right Bounding Coordinate: -109.000000

Bottom Bounding Coordinate: 48.000000

Top Bounding Coordinate: 61.000000

Keywords:

Theme:

Theme Keyword Thesaurus: ISO 19115 Topic Category

Theme Keyword: inlandWaters

Theme:

Theme Keyword Thesaurus: none

Theme Keyword: stream

Theme Keyword: perennial stream

Theme Keyword: intermittent stream

Theme Keyword: recurring stream

Theme Keyword: indefinite stream

Theme Keyword: representation line

Theme Keyword: lake representation line

Theme Keyword: river representation line

Theme Keyword: canal representation line

Access Constraints: To access the data you must agree to the terms of the Open Government Licence - Alberta

Use Constraints: Your use of the information will be governed by the terms of the Open Government Licence - Alberta, in force as of the date you accessed the information.

Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Alberta Environment and Parks, Government of Alberta

Contact Position: Information and Data Provisioning Services, Informatics Branch, Corporate Services Division

Contact Address:

Address Type: mailing and physical address

Address: 14th Floor, Oxbridge Place

Address: 9820 - 106 Street NW

City: Edmonton

State or Province: Alberta

Postal Code: T5K 2J6

Country: Canada

Contact Electronic Mail Address: AEP.GDAMetadata@gov.ab.ca

Hours: 08:15 to 16:30 Monday to Friday

Contact Facsimile Telephone: 7804220712

Contact Instructions: This is the point of contact regarding the creation of, and characteristics of, the data set. Queries about the creation and/or characteristics of the data set submitted through facsimile or electronic mail must include the salutation "Attention: Information and Data Provisioning Services, Informatics Branch, Corporate Services Division; Dataset: Base Stream and Flow Representation". For Distribution Information contact instructions, refer to the Distribution Information section of this metadata record. For Metadata Information contact instructions, refer to the Metadata Reference Information section of this metadata record.

Data Set Credit: Alberta Environment and Parks, Government of Alberta

Security Information:

Security Classification System: Government of Alberta Data and Information Security Classification

Security Classification: Public

Native Data Set Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.3500

Native Dataset Format: SDE Feature Class

Data Quality Information:

Logical Consistency Report: Base Stream arcs are classified according to valid hydrography feature types, and each feature type contains attributes with valid value domains for feature type and feature code. Base Representation arcs are classified according to the type of polygonal hydrography feature type they are associated with. Arbitrary Flow representation arcs are classified according to whether they have been created using DEM or generated manually.

Completeness Report: Feature typing and attribution is complete for all single line hydrography arcs in Alberta.

Lineage:

Source Information:

Source Citation:

Citation Information:

Originator: Alberta Environment and Parks, Government of Alberta

Title: 1:20 000 Provincial Digital Base Mapping Program

Publication Information:

Publication Place: Edmonton, Alberta

Publisher: Alberta Environment and Parks, Government of Alberta

Source Scale Denominator: 20000

Type of Source Media: digital map

Source Citation Abbreviation: Provincial Digital Base Mapping Program, April 1988 (PDBMP)

Source Contribution: The majority of features in the Base Features hydrography data sets are compiled from an Intergraph Standard File Format (ISFF) to ArcInfo conversion of the PDBMP features.

Source Information:

Source Citation:

Citation Information:

Originator: Alberta Environment and Parks, Government of Alberta

Publication Date: various

Title: Alberta Access Mapping Program ISFF map files

Geospatial Data Presentation Form: vector digital data

Source Scale Denominator: 50000

Type of Source Media: digital map

Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 19550101

Ending Date: 19961231

Source Currentness Reference: ground condition

Source Citation Abbreviation: Alberta Access Mapping Program ISFF map files

Source Contribution: Base Features hydrography features created by conversion of the PDBMP were supplemented with approved Access Mapping Program geometry variances exceeding 6 metres from PDBMP geometry. The format of the data was ISFF. Attribution may also have been modified from PDBMP.

Source Information:

Source Citation:

Citation Information:

Originator: Alberta Environment and Parks, Government of Alberta

Publication Date: various

Title: Alberta Vegetation Inventory Program ISFF map files

Geospatial Data Presentation Form: vector digital data

Source Scale Denominator: 20000

Type of Source Media: digital map

Source Citation Abbreviation: Alberta Vegetation Inventory Program

Source Contribution: Base Features hydrography features created by conversion of the PDBMP were supplemented with approved Alberta Vegetation Inventory program geometry variances exceeding 6 metres from PDBMP geometry. The format of the source data was ISFF. Attribution may also have been modified from PDBMP

Source Information:

Source Citation:

Citation Information:

Originator: Government of Canada

Publication Date: various

Title: National Topographic Data Base ESRI export files

Geospatial Data Presentation Form: vector digital data

Source Scale Denominator: 50000

Type of Source Media: digital map

Source Citation Abbreviation: National Topographic Data Base (NTDB)

Source Contribution: Base Features hydrography features created by conversion of the PDBMP, and supplemental data from the Alberta Access Mapping Program and Alberta Vegetation Inventory Program, were supplemented in areas of the province not covered by any of these mapping programs, such as an area of interest in the north east corner of the province and the national parks.

Process Step:

Process Description: Dataset copied.

Source Used Citation Abbreviation: \\env.gov.ab.ca\shared\IDPS\xml_warehouse\MetadataRecords\FGDC\Current\GENESIS\BaseFeatures\BaseStreamAndFlowRepresentation

Process Date: 20180410

Process Time: 10032700

Spatial Data Organization Information:

Direct Spatial Reference Method: Vector

Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: String

Point and Vector Object Count: 886368

ESRI Terms Description:

ESRI Feature Type: Simple

ESRI Feature Geometry: Polyline

ESRI Topology: FALSE

ESRI Feature Count: 886368

Spatial Index: TRUE

Linear Referencing: FALSE

Spatial Reference Information:

Horizontal Coordinate System Definition:

Geographic:

Latitude Resolution: 0.000000

Longitude Resolution: 0.000000

Geographic Coordinate Units: Decimal degrees

Geodetic Model:

Horizontal Datum Name: North American Datum of 1983

Ellipsoid Name: Geodetic Reference System 80

Semi-major Axis: 6378137.000000

Denominator of Flattening Ratio: 298.257222

Coordinate System Name:

Geographic Coordinate System Name: GCS_North_American_1983

Vertical Coordinate System Definition:

Altitude System Definition:

Altitude Resolution: 1.000000

Altitude Encoding Method: Explicit elevation coordinate included with horizontal coordinates

Entity and Attribute Information:

Detailed Description:

Entity Type:

Entity Type Label: BaseFeatures.GDB.BF_HYDRO_SLNET_ARC

Entity Type Definition: Single Line Hydrography Network

Entity Type Definition Source: Base Features Specifications

Entity Type Type: Feature Class

Entity Type Count: 886368

Attribute:

Attribute Label: LENGTH

Attribute Alias: LENGTH

Attribute Type: Double

Attribute Width: 8

Attribute Precision: 18

Attribute Scale: 8

Attribute:

Attribute Label: FEATURE_CODE

Attribute Definition: Alberta CCOGIF feature code that corresponds to the FEATURE_TYPE

Attribute Definition Source: Base Features Specifications

Attribute Alias: FEATURE_CODE

Attribute Type: String

Attribute Width: 10

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: FEATURE_TYPE

Attribute Alias: FEATURE_TYPE

Attribute Definition: The feature type based on the feature code

Attribute Definition Source: Base Features Specifications

Attribute Domain Values:

Enumerated Domain:

Enumerated Domain Value: AQUEDUCT

Enumerated Domain Value Definition: Aqueduct: A man made conduit for carrying a large quantity of flowing water above the terrain. No minimum length applies.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: CANAL

Enumerated Domain Value Definition: Canal: A man made watercourse built to convey water for irrigation. An irrigation canal is larger than a ditch, but less than 20 metres in width, and has reinforced banks that are usually well maintained. The minimum length for capture is 250 metres.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: CANAL-MAJ-REP-PRI

Enumerated Domain Value Definition: Major canal primary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. A primary flow line represents the “shortest path” where two or more flows may exist around an obstruction such as an island.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: CANAL-MAJ-REP-SEC

Enumerated Domain Value Definition: Major canal secondary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. Secondary flow lines represent all other possible flow lines that may be generated other than the shortest path. Secondary flow lines exist where two or more flows exist around an obstruction such as an island.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: DITCH

Enumerated Domain Value Definition: Ditch: A man made watercourse of narrow width, for the conveyance or redirection of water drainage or irrigation. Ditches receive little or no maintenance, and may be covered with low vegetation. The minimum length for capture is 100 metres

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: FLOW-ARB-DEM

Enumerated Domain Value Definition: DEM arbitrary flow representation line: A system generated flow representation line used to connect hydrography features such as single-line rivers/streams to double-line rivers or lakes; where those connections are not represented implicitly in the source data. Arbitrary flow lines are used to represent possible connectivity between hydrography entities where it is most likely to exist. Arbitrary flows are a requirement where disappearing streams occur. These disappearing streams are point features in the Hydropoints layer. The DEM generated Arbitrary Flow is constructed using the source digital elevation model in combination with stream-line algorithms (such as within ARC/INFO GRID) to derive surface drainage pattern.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: FLOW-ARB-MANUAL

Enumerated Domain Value Definition: Manual arbitrary flow representation line: A manually generated flow representation line used to connect hydrography features, such as single-line rivers/streams to double-line rivers or lakes, where those connections are not represented implicitly in the source data. Arbitrary Flow lines are used to represent possible connectivity between hydrography entities where it is most.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: ICEFIELD-REP-PRI

Enumerated Domain Value Definition: Icefield primary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. A primary flow line represents the shortest path; where two or more flows may exist around an obstruction, such as an island. An Icefield/Glacier is an area of permanent ice found in mountainous terrain that is greater than 10 hectares.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: LAKE-REP-PRI

Enumerated Domain Value Definition: Lake primary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. A lake primary flow representation line represents the shortest path connecting single line inflows and outflows. A lake is a body of water situated in a depression of the earth’s surface, usually having a well defined open water area and shoreline.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: OXBOW-PER

Enumerated Domain Value Definition: Oxbow - Perennial: A crescent shaped lake or pond by the side of a river, formed as a result of the cutting through of a meander neck, and the silting of the backwater. Perennial oxbows contain water during the whole year. Perennial oxbows are represented as a single arc if less than 20 metres in width, and as a polygon if greater than 20 metres in width. The minimum length for capture is 250 metres.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: OXBOW-RECUR

Enumerated Domain Value Definition: Oxbow - Intermittent (recurring): A crescent shaped lake or pond by the side of a river, formed as a result of the cutting through of a meander neck, and the silting of the backwater. Intermittent oxbows do not contain water during the dry periods of the year. Intermittent oxbows are represented as a single arc if less than 20 metres in width, and as a polygon if greater than 20 metres in width. The minimum length for capture is 250 metres.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: RIV-MAJ-REP-PRI

Enumerated Domain Value Definition: Major river primary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. A primary flow line represents the shortest path; where two or more flows may exist around an obstruction; such as an island. A major river is a natural hydrographic feature which has banks that are of an average of 20 metres or greater in width.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: RIV-MAJ-REP-SEC

Enumerated Domain Value Definition: Major river secondary flow representation line: A system or manually generated flow representation line required in order to represent a polygonal feature as a single-line feature. Secondary flow lines represent all other possible flow lines that may be generated other than the shortest path. Secondary flow lines exist where two or more flows may exist around an obstruction, such as an island.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: SPILLWAY

Enumerated Domain Value Definition: Spillway: A man made structure in the form of a paved apron on a dam for the passage of superfluous water. No minimum length applies.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: STR-INDEF

Enumerated Domain Value Definition: River/Stream - Indefinite: A perennial or intermittent river/stream whose channel cannot be clearly distinguished. An indefinite river/stream is used when the actual channel is obscured by vegetation, high water, etc., and is most frequently found in forested areas, muskegs, bogs, wetlands, high water areas around perennial lakes, and through intermittent lakes. No minimum length applies.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: STR-PER

Enumerated Domain Value Definition: River/Stream - Perennial: A natural hydrographic feature with shorelines that are less than an average of 20 metres in width. The river/stream bed normally contains flowing water, except under drought conditions. No minimum length applies.

Enumerated Domain Value Definition Source: Base Features Specifications

Enumerated Domain:

Enumerated Domain Value: STR-RECUR

Enumerated Domain Value Definition: River/Stream - Intermittent (recurring): A natural hydrographic feature with shorelines that are less than an average of 20 metres in width. The river/stream bed is often dry during certain times of the year due to climatic conditions and/or a limited area of drainage. No minimum length applies.

Enumerated Domain Value Definition Source: Base Features Specifications

Attribute Type: String

Attribute Width: 30

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: NAME

Attribute Alias: NAME

Attribute Definition: The name of the single line hydrography feature as per GNS. Formatted as plain English mixed upper and lower case. Examples – Bear Creek, Highwood River

Attribute Definition Source: Base Features Specifications

Attribute Type: String

Attribute Width: 80

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: SOURCE

Attribute Alias: SOURCE

Attribute Definition: The imagery source type for the single line hydrography feature.

Attribute Definition Source: Base Features Specifications

Attribute Type: String

Attribute Width: 6

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: CAPTURE_DATE

Attribute Definition: The date the imagery source was flown (mm/dd/yyyy).

Attribute Definition Source: Base Features Specifications

Attribute Alias: CAPTURE_DATE

Attribute Type: Date

Attribute Width: 36

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: PS_FLOW

Attribute Definition: An attribute assigned to each arc participating in the single line hydrography network that distinguishes whether the arc is part of a primary flow path or a secondary flow path. By default, the arcs that form the shortest path between two nodes, in a polygon formed due to primary and secondary flow paths, with the minimum and maximum elevation are flagged as “P”. Only nodes with at least three connected arcs are considered as potential start and end nodes for the shortest path. The valid values are: P – Primary flow path; S – Secondary flow path.

Attribute Definition Source: Base Features Specifications

Attribute Alias: PS_FLOW

Attribute Type: String

Attribute Width: 1

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: BF_ID

Attribute Alias: BF_ID

Attribute Definition: An identifier assigned to Base Features hydrography features loaded into the AEP corporate spatial repository.

Attribute Definition Source: Base Features Specifications

Attribute Type: Double

Attribute Width: 8

Attribute Precision: 15

Attribute Scale: 0

Attribute:

Attribute Label: SHAPE

Attribute Definition: Feature geometry.

Attribute Definition Source: ESRI

Attribute Domain Values:

Unrepresentable Domain: Coordinates defining the features.

Attribute Alias: SHAPE

Attribute Type: Geometry

Attribute Width: 4

Attribute Precision: 0

Attribute Scale: 0

Attribute:

Attribute Label: OBJECTID

Attribute Definition: Internal feature number.

Attribute Definition Source: ESRI

Attribute Domain Values:

Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.

Attribute Alias: OBJECTID

Attribute Type: OID

Attribute Width: 4

Attribute Precision: 10

Attribute Scale: 0

Attribute:

Attribute Label: SHAPE.LEN

Attribute Alias: SHAPE.LEN

Attribute Type: Double

Attribute Width: 0

Attribute Precision: 0

Attribute Scale: 0

Distribution Information:

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: Altalis Ltd.

Contact Address:

Address Type: mailing and physical address

Address: Suite 1550, 635 - 8 Avenue SW

City: Calgary

State or Province: Alberta

Postal Code: T2P 3M3

Country: Canada

Contact Voice Telephone: 4037163490

Contact Facsimile Telephone: 4037163494

Contact Electronic Mail Address: support@altalis.com

Hours: 08:00 to 16:30 Monday to Friday

Contact Instructions: Registered users can log on to http://www.altalis.com/vod.html, all other users can call 403-716-3490 or email their inquiries to info@altalis.com.

Resource Description: Live Data and Maps

Distribution Liability: Under the terms of the Open Government Licence - Alberta, the Information is licensed as is, and the Information Provider excludes all representations, warranties, obligations, and liabilities, whether express or implied, to the maximum extent permitted by law. The Information Provider is not liable for any errors or omissions in the Information, and will not under any circumstances be liable for any direct, indirect, special, incidental, consequential, or other loss, injury or damage caused by its use or otherwise arising in connection with this licence or the Information, even if specifically advised of the possibility of such loss, injury or damage.

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: ESRI Shapefile

File Decompression Technique: File compression technology shall be utilized when required. Altalis presently utilizes Java Zip Utilities.

Digital Transfer Option:

Online Option:

Computer Contact Information:

Access Instructions: The layer is a part of the Base Features product which can be accessed and downloaded for free via the Open Data option located at http://www.altalis.com.

Digital Form:

Digital Transfer Information:

Format Name: ESRI FGDB

File Decompression Technique: File compression technology shall be utilized when required. Altalis presently utilizes Java Zip Utilities.

Fees: This layer is included in the Base Features product for free under the Open Government Licence - Alberta.

Ordering Instructions: The layer is a part of the Base Features product which can be accessed and downloaded via the Open Data option of the Altalis homepage, www.altalis.com

Turnaround: Direct download

Custom Order Process: Custom cuts to the layer can be made as part of the Base Features bundle by contacting an Altalis representative at 403-716-3490 or by email at support@altalis.com.

Technical Prerequisites: To utilize digital information, specialized software may be required. Digital information required specialized graphics or GIS software (i.e. ArcInfo, ArcView, ArcGIS, or MicroStation).

Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: Monday to Sunday

Time of Day: 24 hours

Metadata Reference Information:

Metadata Date: 20180410

Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Alberta Environment and Parks, Government of Alberta

Contact Position: Information and Data Provisioning Services, Informatics Branch, Corporate Services Division

Contact Address:

Address Type: mailing and physical address

Address: 14th Floor, Oxbridge Place

Address: 9820 - 106 Street NW

City: Edmonton

State or Province: Alberta

Postal Code: T5K 2J6

Country: Canada

Hours: 08:15 to 16:30 Monday to Friday

Contact Facsimile Telephone: 7804220712

Contact Instructions: This is the point of contact regarding the creation of, and characteristics of, metadata for the data set. Queries about the creation and/or characteristics of the metadata submitted through facsimile or electronic mail must include the salutation "Attention: Information and Data Provisioning Services, Informatics Branch, Corporate Services Division; Dataset: Base Stream and Flow Representation". For Distribution Information contact instructions, refer to the Distribution Information section of this metadata record.

Contact Electronic Mail Address: AEP.GDAMetadata@gov.ab.ca

Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata Standard Version: FGDC-STD-001-1998

Metadata Time Convention: local time

Language of Metadata: en

Metadata Extensions:

Online Linkage: http://www.esri.com/metadata/esriprof80.html

Profile Name: ESRI Metadata Profile

ESRI Metadata

Modification Date: 20180508

Modification Time: 11473400

Creation Date: 20180410

Creation Time: 10032700

Synchronize Once: FALSE

Synchronization Date: 20140623

Synchronization Time: 12571200

Metadata ID: {8E7C9301-C7D2-404E-A0D5-719D7270FAA2}

Published Document ID: {7F9C0F33-6DDB-4479-B2D9-1419D79E2D26}