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<p class=MsoNormal>Hello CANUFNET,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I agree with Peter that the first step towards managing
canopy cover is to do some inventory work. There are many ways to go about
this, and our experience of late developing a canopy cover estimate for the
City of Thunder Bay might be of interest to all those concerned with urban
canopy cover inventory work.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>1 – Imagery type and resolution: from satellite
imagery to aerial photography there are plenty of options. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We found current year high res (i.e 50-80 c pixels) colour
digital aerial imagery acquired at a time of year when deciduous trees have
leaves the best for delineating the extent of individual tree canopies. Coupled
with high res imagery Cities typically have on hand collected “leaf
off” to view grey infrastructure to interpret any problem areas we were
confident that urban canopy cover exists where our interpreters looked to
classify points. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>2- Continuous versus point sample approaches to
classification of ground cover types. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Continuous classification requires very high resolution
images and lots of $$. Does it provide better information remains a question.
The key to providing good estimates using point sampling is to have access to
good GIS data in order to provide stratification options that others in this chat
have alluded to – i.e. residential vs. commercial and industrial land use
types; Wards; Neighborhoods, etc. Once strata of interest are selected,
one can measure precision of the estimates statistically and ensure estimates
fall within acceptable margins of error.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>KBM can provide support for any of these approaches. We led
all of the study design, and flew our own aircraft and digital camera set-up
for Thunder Bay; and did all image processing and interpretation in house. I
don’t know of any other Ontario forestry consulting service providers
that have/can do this. Most similar Ontario projects to date have relied
heavily on support from the US forest Service.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I invite anyone interested to contact me directly using the
coordinates listed in my e-signature below. Also, Thunder Bay City Forester
Shelley Vescio is open to discussing the Thunder Bay project. In fact, she and
City Planner Chris Doyle will be presenting the project methodologies and
outcomes at an upcoming ESRI user conference in Thunder Bay April 28-29 2009:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><span
style='font-size:7.5pt;font-family:"Verdana","sans-serif"'>ESRI Regional
User Conference - Thunder Bay</span></b> <o:p></o:p></p>
<p style='margin-bottom:12.0pt'><b><span style='font-size:7.5pt;
font-family:"Verdana","sans-serif"'>Date : </span></b><span
style='font-size:7.5pt;font-family:"Verdana","sans-serif"'>Apr 28, 09 ~
Apr 29, 09 <b><br>
Venue : </b>Valhalla Inn<b><br>
Venue Address : </b>1 Valhalla Inn Road, Thunder Bay, ON P7E 6J1<b><br>
Venue Telephone: </b>807-577-1121<b><br>
Location : </b>Thunder Bay, ON<b><br>
Event Language :</b> English</span><o:p></o:p></p>
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<p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif"'>ESRI
Regional User Conference - Thunder Bay</span></b><span
style='font-size:7.5pt;font-family:"Verdana","sans-serif"'><br>
ESRI Canada is pleased to invite you to join other GIS professionals
for this exclusive opportunity to learn about the latest advances in GIS
technology and hear first hand how others in your community are using a
geographic approach in their work.<br>
<br>
The main conference (plenary sessions, user presentations and technical
sessions) will be held on Wednesday, April 29, 2009.<br>
<br>
Enhance your conference experience with a pre-conference workshop.
Workshops will be held on Tuesday, April 28, 2009.</span><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Ben
Kuttner, M.Sc.F., R.P.F.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Consulting
Forester<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>General
Manager – Toronto<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>KBM
Forestry Consultants Inc.<o:p></o:p></span></p>
<p class=MsoNormal><a href="http://www.kbm.on.ca/"><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>www.kbm.on.ca</span></a><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><a href="mailto:kuttner@kbm.on.ca"><span style='font-size:
10.0pt;font-family:"Arial","sans-serif"'>kuttner@kbm.on.ca</span></a><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>mobile:
647-273-4576<o:p></o:p></span></p>
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