Showing posts with label Resources. Show all posts
Showing posts with label Resources. Show all posts

Wednesday, July 27, 2011

Canadian Land Inventory Inaccuracies

The following is an excerpt of the answer we received when inquiring about why the Canadian Land Inventory seemed to be inaccurate...

Neither GIS nor high-resolution DEM's existed in the era of either soil or CLI initial map product development for Simcoe County. Today's digital products, available through the Land Information Ontario warehouse, are the products of attempts to "modernize" the original paper map products.
Unfortunately, the map digitizing pre-dated the DEM development and the rationalization of the soil and CLI polygons into their proper landscape positions was overlooked - until now.

The precision of landscape rendering - as performed by an Ontario Land Surveyor - far exceeds the current spatial resolution and accuracy of the soil maps and derivative products - like the CLI layer. The new Greater Toronto Area (GTA) DEM has sub-metre vertical accuracy. It is superior to the current provincial DEM. Neither of these DEM's approaches the accuracy of products that an Ontario Land Surveyor should produce for landscape location of boundaries and features. The problem is that the perception of scale and accuracy of the soil map products does not meet the reality of their application - except by people such as yourself who saw through this issue immediately. We have started down a road of renewal of the soil map resources of the Lake Simcoe watershed (and will then move to the extent of high-resolution DEM availability in the rest of the GTA DEM coverage). We are also acquiring LiDAR data clouds, creating LiDAR-derived high-resolution DEM's and moving to much more detailed predictive soil mapping in selected areas of the province. At present, however, we have not completed this work for the C.F.B. Borden area of Simcoe County.

An estimate of the margin of error associated with these current soil map (and derivative) products may be derived, somewhat at least, from the input data density requirement to create the original 1:63,360 map product.
However, we can find no metadata records of how rigorously this mapping protocol would have been applied on any individual acreage of the map area.
I am very sorry, but this remains a major weakness in the current Ontario soil map products across the province.

On behalf of OMAFRA and the current Soil Resource Information Team, thanks very much for your inquiry and interest in the Simcoe County soil and CLI map products. If you have a project in mind for adding value and precision to the soil mapping in the area, please contact me directly. We would be pleased to discuss options and opportunities for soil information data improvements with you.

Sincerely,

Stewart

Stewart J. Sweeney, Ph.D.
Environmental Management Branch,
Ontario Ministry of Agriculture, Food and Rural Affairs

Thursday, January 20, 2011

January 29 meeting

Simcoe Solar Farm Awareness Project is hosting a smposium on the Importance of Preserving Agricultural Land from Large Scale Solar Facilities. The presentation will be held on January 29, 2011 from 11 am to 1 pm at the Coldwater & District Community Centre, 1 Michael Anne Drive, Coldwater. A poster is available at our website http://www.ontariofarmlandpreservation.org/PublicMeetings.html

Sunday, November 21, 2010

Symposium a success!!

Alternative Energy & the Family Farm
This symposium, held on November 16th tackled various subjects surrounding Farmland, Soil Inventory, Alternative Power Generation etc. The meeting was sponsored by the Simcoe County Federation of Agriculture. Three of the seven presenters had PowerPoint presentations which they have agreed to make available. Download the PDF versions from the OntarioFarmlandPreservation.org Resources page.

Thursday, August 26, 2010

Newspaper Articles & Resources

Our main website ontariofarmlandpreservation.org has two pages of web links -- one is for online newspaper articles of interest, the other for web pages which link to information like solar potential maps, soil maps, government sites & legislative information.

Some of the new links we've just posted~~

One of the problems with The Green Energy Act is that it allows the Ontario Power Authority to “arbitrarily override” democratically elected councillors and mayors to impose energy projects. Progressive Conservative Leader Tim Hudak has vowed to restore veto power to communities over provincial energy projects if his party forms the next government.
http://www.thestar.com/news/ontario/article/848972--municipalities-should-have-veto-over-energy-projects-tim-hudak

This article shows that there could be worse things than putting solar panels over acres of viable farmland -- you could clear-cut a woodlot and drain a wetland to construct a solar farm!! This seems a possibility in Tay Township near Ottawa.
http://www.yourottawaregion.com/news/local/article/862673--planned-tvt-solar-farm-worries-neighbours

If the experts believe that Northwest Indiana does not have enough sunlight to produce economically viable solar power -- what makes anyone think that we could do it in Canada?
http://www.nwitimes.com/news/local/lake/article_6bade84a-4e09-575b-8690-7534eab38ec9.html

To study that further, you could visit the Photovoltaic potential and solar resource maps of Canada
https://glfc.cfsnet.nfis.org/mapserver/pv/index_e.php