TEM Updates and Islets Report

Extracted text (beginning)

T E R R E S T R I A L  
E C O S Y S T E M   M A P P I N G  
U P D A T E S   
 
 
 
 
Submitted by: 
Robert N. Green 
B.A. Blackwell and Associates Ltd. 
3087 Hoskins Road 
North Vancouver, B.C. 
V7J 3B5 
 
Submitted to: 
Nuala Murphy 
Islands Trust 
Suite 200 – 1627 Fort St.,  
Victoria, B.C. 
 
 
 
February 2011 

Islands Trust TEM Updates  
B.A. Blackwell & Associates Ltd. Page i 2/23/2017 
Table of Contents 
1.0 Introduction ................................................................................................................................... 2 
2.0 Approach ........................................................................................................................................ 2 
2.1 Island Mapping ......................................................................................................................... 2 
2.2 Public Feedback ........................................................................................................................ 3 
3.0 Results ............................................................................................................................................. 3 
 
 

Islands Trust TEM Updates  
B.A. Blackwell & Associates Ltd. Page 2 2/23/2017 
1.0 Introduction 
Islands Trust has assembled Terrestrial Ecosystem Mapping (TEM) data from several 
projects that cover the Trust area. This includes CDF Zone  (including Saltspring Island 
subproject) mapping completed in 2008 (Madrone), Howe Sound mapping completed in 
2009 (Madrone), and Parks Canada Southern Gulf Islands mapping completed in 2007 
(B.A. Blackwell & Associates). This data has been translated and merged into a 
standardized database for Islands Trust planning applications. (“TEM_SEM” database). 
The objectives of this project addressed two issues associated with the above data: 
1. map the small islets and islands not previously captured in the original TEM 
mapping. 
2. review the public feedback comments received from review of TEM map 
products, and adjust existing TEM data where warranted.  
2.0 Approach 
2.1 Island Mapping 
A spatial database containing all the islets/islands requiring mapping was obtained from 
Islands Trust. This was derived from the provincial TRIM data and as such, included 
some minor inaccuracies in shoreline locations, particularly for small islets. These were 
left unadjusted to be consistent with the original CDF Zone mapping project. 
Digital orthophotos for the majority of the islands was obtained from Islands Trust. 
These included flights from 2002, 2006, 2007, 2008, and 2009. This was the primary 
source of imagery used for mapping. Since the majority of the islands were small and 
with limited relief, the 2D ortho imagery was of sufficient quality to conduct TEM 
mapping. A number of islands were not covered by the ortho coverages. For these areas, 
we used a combination of sources, including the airphotos from the original TEM 
mapping projects where available, the

First 3,000 characters. Open the original for the whole document.