Tidal Energy Areas of Interest

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Publication_Date: May 2011

Title: Tidal Energy Areas of Interest

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Marine Atlas of Pacific Canada

Publication_Information:

Publisher:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Online_Linkage:

\\POTTER\L$\Data Library\Post\Energy\Renewable\bcmca_hu_oceanenergy_TidalEnergyAreas_data.shp

Larger_Work_Citation:

Citation_Information:

Originator:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Publication_Date: May 2011

Title: Marine Atlas of Pacific Canada

Online_Linkage: www.bcmca.ca/atlas

Description:

Abstract:

This dataset displays the output of a participatory mapping exercise conducted during and after the BCMCA Renewable Ocean Energy Mapping Workshop held November 17, 2008. It contains the combined areas of interest or promise for tidal energy development along the coast of British Columbia. The data is grid-based, with each 1x1 km cell weighted according to the measure of relative importance to assigned each area mapped by workshop participants.

Purpose:

To develop a more comprehensive spatial representation of areas of interest to tidal energy development on the BC coast, as currently understood based on available information.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: November 2008

Currentness_Reference: Data collection date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -132.667069

East_Bounding_Coordinate: -122.542096

North_Bounding_Coordinate: 54.351719

South_Bounding_Coordinate: 48.075807

Keywords:

Theme:

Theme_Keyword: tidal energy

Theme_Keyword: Areas of Interest

Theme_Keyword: participatory mapping

Place:

Place_Keyword: BC

Place_Keyword: Pacific Ocean

Temporal:

Temporal_Keyword: 2008

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Contact_Electronic_Mail_Address: info@bcmca.ca

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:

Logical_Consistency_Report:

The areas are identified with the caveat that they are based on the participants' current understanding of available information.
See the Marine Atlas of British Columbia, p187, for reviewer comments and caveats of use.

Completeness_Report:

In mapping their areas of interest, participants emphasised that their mapping is based on a limited understanding of BC's ocean energy resources. Improved understanding, technological advances, and changing economic conditions are all likely to change which areas of the BC coast may be of interest for wave and tidal energy development in the future. Thus, planners, regulators, and other interest groups should not view the maps resulting from this workshop as a definitive picture of the ocean energy sector's areas of interest. Rather, the maps provide a useful indication of current areas of interest that can serve as a source of guidance for planning and decision-making in the present and near future (5-10 years)

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: 1x1 km grid cells

Lineage:

Source_Information:

Source_Scale_Denominator: 1:700,000 to 1:900,000

Type_of_Source_Media: Hand drawn polygons on hard copy maps

Source_Contribution:

Renewable ocean energy mapping workshop, held by the BCMCA in Vancouver, BC, November 17, 2008. The following individuals contributed their knowledge of wave and tidal energy to this exercise: - Adam Valair, Natural Power [tidal and wave] - Russ Halliday, Natural Power [tidal and wave] - Alex Tu, BC Hydro [tidal and wave] - Brad Buckham, University of Victoria [wave] - Nigel Protter, Syncwave Energy [wave] - Jessica McIlroy, Ocean Renewable Energy Group [tidal and wave] - Michael Tarbotton, Triton Consultants [tidal and wave] - Geoff Turner, BC Ministry of Energy, Mines and Petroleum Resources [tidal and wave] - James Elphick, Global Energy Horizons [wave] - Russell Stothers, Clean Current [tidal]

Process_Step:

Process_Description:

The BC Marine Conservation Analysis, in cooperation with the Ocean Renewable Energy Group, convened a workshop on November 17, 2008 with industry representatives, scientists, and resource managers to develop a more comprehensive spatial representation of areas of interest to wave and tidal energy development on the BC coast. Workshop participants (1) reviewed existing maps illustrating wave and tidal energy potential, (2) developed criteria additional to energy potential that influence the potential of sites for energy capture developments, and (3) individually mapped the areas of interest or promise for energy development on the BC coast, assigning measures of relative importance to each area they mapped.
Neil Davis led the workshop and the mapping exercise. Neil explained that the mapping exercise was based on a method that has been used elsewhere in BC and in California. He showed sample maps from the processes where this mapping method was used.
The Workshop participants were asked to: 1. Draw polygons on marine charts indicating areas of potential development on the BC coast; 2. Identify whether the polygons were for tidal or wave energy development; and 3. "Spend" $100 among all polygons to indicate their relative importance. o Higher amounts = areas of more interest/promise
Areas of interest were hand drawn on 11x17" black and white copies of nautical charts which ranged in scale from 1:700,000 to 1:900,000.

Source_Used_Citation_Abbreviation: Renewable Ocean Energy Mapping Workshop

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Neil Davis

Contact_Organization: British Columbia Marine Conservation Analysis

Contact_Position: Human Use Coordinator

Contact_Electronic_Mail_Address: info@bcmca.ca

Process_Step:

Process_Description:

Polygons drawn by mapping participants were digitized from hard copy maps using the "heads up" method; an identical map was displayed in the GIS and the hand drawn areas were entered using a mouse. Each polygon was attributed with the name of the contributor, the type of energy mapped (tidal or wave), and the assigned "value" (portion of $100). Note that although each participant had up to $100 in value to assign, some did not assign full value to all their mapped areas.
Data from all participants was merged into one Geodatabase.

Process_Date: February 2009

Source_Produced_Citation_Abbreviation: individual participatory maps.gdb\RenewableEnergy.gdb

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Sarah Loss

Contact_Organization: GIS Consultant

Process_Step:

Process_Description:

The polygon values were revised to account for the precision with which each polygon was drawn. The polygons were then overlaid with 500 m x 500 m grid cells that covered the study area. For each grid cell, the number of polygons and the summed value of those polygons was calculated. This was performed in ArcView 3.2 using the them.overlappingpollys_2_grid Avenue script available from ArcScripts. From these values, the arithmetic mean for each grid cell was calculated.

Process_Date: April 2009

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: Living Oceans Society (for BCMCA)

Contact_Position: GIS Specialist

Process_Step:

Process_Description:

A Kernel Density Analysis was performed in ArcView 3.2 using a 5 km search radius, a 1 km cell size, and the mean value of each grid cell as the weight. The density analysis ensures that the values displayed considered polygons that were within close proximity but not overlapping and helps to smooth the results to ensure that no one person's polygons can be identified. The values in the resulting density grid were standardized and converted to integers.

Process_Date: April 2009

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: Living Oceans Society (for BCMCA)

Contact_Position: GIS Specialist

Process_Step:

Process_Description:

Data from the 10th workshop participant was missed on the first analysis and initially only 9 summary maps were used in the analysis. The 10th map was added in July 2009. The previous 3 process steps were re-run to generate this revised raster.

Source_Used_Citation_Abbreviation:

C:\BCMCA\HumanUse\Data_Received\Energy\alternative_energy\wave_tidal\tidal_wave_calculations\renewable energy data\tidal5_int\metadata.xml

Process_Date: July 2009

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: Living Oceans Society (for BCMCA)

Contact_Position: GIS Specialist

Process_Step:

Process_Description:

Raster converted to polygons. 0 value polygon deleted. The polygons were not clipped to the coastline because that would have affected the precision at which they were drawn and would have affected the calculations for their ultimate score.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Carrie Robb

Contact_Organization: Living Oceans Society (for BCMCA)

Contact_Position: GIS Specialist

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 9974

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 50.000000

Standard_Parallel: 58.500000

Longitude_of_Central_Meridian: -126.000000

Latitude_of_Projection_Origin: 45.000000

False_Easting: 1000000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000

Ordinate_Resolution: 0.000000

Planar_Distance_Units: meters

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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: bcmca_hu_oceanenergy_TidalEnergyAreas_data

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: BCMCA assigned Marxan identifier

Attribute:

Attribute_Label: GRIDCODE

Attribute_Definition: relative value of cell for tidal energy (between 1 and 1000)

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

The British Columbia Marine Conservation Analysis (BCMCA), a Tides Canada Initiatives Project

Contact_Electronic_Mail_Address: info@bcmca.ca

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 1.309

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: November 2008

Metadata_Reference_Information:

Metadata_Date: 20120207

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: British Columbia Marine Conservation Analysis

Contact_Person: Dave Nicolson

Contact_Position: Project Manager

Contact_Address:

Address_Type:

REQUIRED: The mailing and/or physical address for the organization or individual.

City: REQUIRED: The city of the address.

State_or_Province: REQUIRED: The state or province of the address.

Postal_Code: REQUIRED: The ZIP or other postal code of the address.

Contact_Electronic_Mail_Address: info@bcmca.ca

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile