Identification

Title

Kelp Canopy Extent 2012 - NW Calvert Island

Alternative title(s)

Kelp Canopy Extent 2012 - NW Calvert Island

Abstract

Polygons manually created based on August 2012 air photos. Two species are mapped: Nereocystis luetkeana and Macrocystis pyrifera. Density is classified as either High or Low according the KIM 1 methodologies detailed in the 2007 Sutherland Kelp Inventory report (http://www.env.gov.bc.ca/omfd/reports/Kelp2007-HakaiPass.pdf) Areas covered: West Beach – 7th beach to West Beach + Choked Passage – Surf Pass and North Beach to Wolf Beach North to Hakai Land and Sea Beach. Air Photos gathered by Terra Remote Sensing and processed by the CEDD Lab and Hyperspectral Lab at the University of Victoria. Imagery was share with SFU volunteer crew (Jenn Burt, Amanda Schrack, and Sebastian Mather). Quality conrol checked March 2015 by Keith Holmes and Jenn Burt. Kelp extent layer is represented by polygons which were digitized manually in ARC GIS. Attributes: FID - Unique identification number - ARC auto generated during polygon creation Shape - Polygon - spatial representation Species - "Macro" / "Nereo" / Mixed detailing the two possible kelp canopy species. Macro refers to macrocystis pyrifera or giant kelp. Nereo refers to nereocystis luetkeana or bull kelp. Mixed is a homogenous mix of both Macro and Nereo species. Defined by GIS techs - identified by "credit" field. Density - density of kelp defined as either high or low. Based on the Sutherland methodology for kelp density. High = high density / based on mean kelp plants found per square meter. Low = low density - still a continuous bed of kelp with large gaps the length of each fond. Area sq_m - size of each kelp bed in square meters. Defined by arc geometry calculation. Concat - concatenation of species and density information. Used for cartographic purposes. Defined by concatenating species and density metrics in ARC GIS. Confidence - Used by GIS technician to identify difficult to detect species / kelp bed extent / density. Used to inform reviewers and quality control spatial information. High = High confidence - no need to check over, Medium = medium confidence - check over, Low = low confidence - unsure of major elements - reviewer check over. A "Checked" may be added to the information to determine quality control has been completed on low confidence polygons. Determined by the last "credit" reviewer. Credit - Initials of GIS technician to create and give the final quality check on the kelp extent polygon. KH = Keith Holmes, JB = Jenn Burt, AS = Amanda Schrack, SM = Sebastian Mather. Species_la - full Latin species name for the kelp. macrocystis pyrifera / nereocystis luetkeana / mixed. Mixed has a homogenous mix of both macrocystis pyrifera and nereocystis luetkeana species Dataset created by Jenn Burt and Keith Holmes. Simon Fraser University Volunteers: Amanda Schrack and Sebastian Mather Contact: keith.holmes@hakai.org

Resource type

dataset

Resource locator

https://hecate.hakai.org/auth/access-request.php#

protocol: WWW:LINK-1.0-http--link

name: Hakai Data Access Online Request Form

description: Online form for requesting access to particular datasets owned by Hakai

http://hakai.maps.arcgis.com/home/item.html?id=ec2e688fb85f4607af65376482222e5f

protocol: WWW:LINK-1.0-http--link

name: Hakai's ArcGIS Online Platform (restricted access)

description: Hakai's AGOL Instance is the platform for Access and online use of this dataset/'s reference layer

Unique resource identifier

code

codeSpace

Dataset language

eng

Spatial reference system

authority code

EPSG

code identifying the spatial reference system

3857

Classification of spatial data and services

Topic category

biota

oceans

Keywords

Keyword set

keyword value

Downloadable Data

originating controlled vocabulary

Keyword set

keyword value

Kelp

canopy

extent

calvert

bull kelp

giant kelp

hakai

2012

Geographic location

West bounding longitude

-128.16959381103513

East bounding longitude

-128.11191558837888

North bounding latitude

51.681709494104325

South bounding latitude

51.63613234359897

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

creation

effective date

2015-01-27

date type

publication

effective date

2015-12-10

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

Shapefile

version of format

ESRI

Constraints related to access and use

Constraint set

Use constraints

Appropriate credit must be given to Hakai Institute and the authors of the dataset.

Responsible organisations

Responsible party

organisation name

Hakai Institute

full postal address

1002 Wharf Street - Suite 100

Victoria

V8W1T4

telephone number

+1 (250) 590 3306

email address

data@hakai.org

responsible party role

pointOfContact

Responsible party

organisation name

Hakai Institute

email address

responsible party role

processor

Metadata on metadata

Metadata point of contact

organisation name

Hakai Institute

email address

responsible party role

publisher

organisation name

email address

responsible party role

Metadata date

2016-05-04T13:46:50

Metadata language

eng