CanCoast - Tidal Range Version 6.0

CanCoast is a geospatial database of the physical characteristics of Canada's marine coasts. It includes both feature classes that are not expected to change through time, and feature classes that are expected to change as climate changes. CanCoast includes: wave-height change with sea ice (early and late 21st century); sea-level change (early and late century); ground ice content; coastal materials; tidal range; and backshore slope. These are mapped to a common high-resolution shoreline and used to calculate indices that show the coastal sensitivity of Canada's marine coasts in modelled early and late 21st century climates.

Date ( RI_367 ): 2019-05-01

Date ( RI_366 ): 2017-09-01

RI_415

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

1 Challenger Drive , Dartmouth , Nova Scotia , Canada

voice; +01-902-426-3144

RI_413

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

1 Challenger Drive , Dartmouth , Nova Scotia , Canada

voice; +01-902-426-3144

RI_409

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

1 Challenger Drive , Dartmouth , Nova Scotia , Canada

voice; +01-902-426-3144

RI_414

Government of Canada; Natural Resources Canada; Geological Survey of Canada

Presentation form: mapDigital;carteNumérique RI_391

Name: Open File

Other citation details: Manson, G.K., Couture, N.J, James, T.S., 2019. CanCoast 2.0: Data and Indices to Describe the Sensitivity of Canada's Marine Coasts to Changing Climate; Geological Survey of Canada, Open File 8551, 18 + ii p. https://doi.org/10.4095/314669

Purpose: The purpose of this CanCoast feature class is to map the spatial variability of tidal range along the marine coasts of Canada. It is derived from tidal ranges provided by the Fisheries and Oceans Canada WebTide model. In this feature class, tidal range is defined as the difference between predicted astronomical lower low water large tides (LLWLT) and higher high water large tides (HHWLT). These terms mean the lowest and highest water levels without storm surges. Considering how nearshore currents can cause sediment transport and coastal change, erosion can be expected to be greater in regions with high tide range and less in areas with low tide range. Likewise, the joint probability of tides and surges in which storm surge flooding can be expected is greatest in regions with low tide range. This represents a situation where sensitivity to coastal change is high at both low and high tidal ranges, with minor sensitivity occurring at medium tidal ranges (2-6 m). This feature class represents the relationship of tides, storm surge inundation, and erosion by assigning high scores to both high and low tide ranges and low scores to medium tide ranges. By quantifying the tide range along Canada's marine coasts, this feature class contributes to the calculations of Canada's coastal flooding and erosion sensitivity in a changing climate.

Credit: Funding for CanCoast was provided by the Climate Change Geoscience Program of the Lands and Minerals Sector of Natural Resources Canada under the Supporting Adaptation in Coastal Regions project. Additional funding was provided by the Climate Change Impacts and Adaptations Division of Natural Resources Canada.

Status: completed; complété RI_593

Maintenance and update frequency: notPlanned; nonPlanifié RI_542

GSC Keywords Vocabulary - Thesaurus Thésaurus - vocabulaire de mots-clé de la CGC ( RI_528 )

Coastal and Marine Geology

NRCan - GSC - Coastal domain - Keywords list Liste de mots-clés - RNCan - CGC - Domain côtier ( RI_528 )

ground ice

Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )

Coasts

Use limitation: Her Majesty the Queen in Right of Canada 2018

Use limitation: Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)

Access constraints: license; licence RI_606

Use constraints: otherRestrictions; autresRestrictions RI_609

Spatial representation type: vector; vecteur RI_635

Metadata language: eng; CAN

Character set: utf8; utf8 RI_458

Topic category

Geoscientific information

Description: Canada's marine coasts.

Begin date: 2010-12-31

End date: 2011-12-31

Supplemental Information: The tide range feature class was provided with attributes on CanCoast Shoreline Version 3.0 by the Ocean and Ecosystem Sciences Division, Fisheries and Oceans Canada. The CanCoast Marine Shoreline Version 3.0 was developed by the Geological Survey of Canada, Natural Resources Canada.

Reference system identifier: http://www.epsg-registry.org/ / EPSG:4617 / 6.14

Spatial representation info

No information provided.

Distribution format

SHP ( ESRI ArcGIS )

RI_412

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

1 Challenger Drive , Dartmouth , Nova Scotia , Canada

voice; +01-902-426-3144

RI_414

Government of Canada; Natural Resources Canada; Geological Survey of Canada

Transfer size: 274

OnLine resource: CanCoast - Amplitude de marées, version 6.0 ( HTTPS )
Dataset;HTML;eng

OnLine resource: CanCoast - Tidal Range Version 6.0 ( HTTPS )
Dataset;HTML;eng

OnLine resource: CanCoast - Tidal Range Version 6.0 - French ( HTTPS )
Dataset;ZIP;fra

OnLine resource: CanCoast - Tidal Range Version 6.0 - English ( HTTPS )
Dataset;ZIP;eng

Hierarchy level: dataset; jeuDonnées RI_622

Statement: Process step no. 1 Process step no. 2 Process step no. 3 Process step no. 4 Generic process step - data source list

Description: Using R scripting, the raster data were grown to ensure overlap of pixels with the CanCoast shoreline.

Date / Time: 2018-03-30T00:00:00.0

RI_416

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

Description: See the generic process step for a list of data sources.

Description: Using the ArcGIS convert raster to polygon tool, line segments of the CanCoast shoreline were assigned the tide range attributes.

Date / Time: 2018-03-30T00:00:00.0

RI_416

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Atlantique - Gavin Manson ( Coastal Geologist )

Description: See the generic process step for a list of data sources.

Description: Using ArcGIS, deleted unnecessary fields and created new field to contain scores, and with python scripting scored attribute values according to criteria established using expert knowledge.