Friday, February 29, 2008
What was the total rainfall here last year? Q21 of The Big Here Quiz
Environment Canada is missing rainfall data during some months of 2007 and 2006 for Windsor, Ontario, but in 2005 there was 562.4 mm of rain.
Name five birds that live here. Which are migratory and which stay put? Q20 of The Big Here Quiz
Easy-peasy. First, I will choose 5 birds from the Bird Checklist of the Ojibway Prairie Complex.
Then after referring to the The Birds of North America (my library has an online subscription), I will add an astrerix to those who are migratory.
- Ring-necked Pheasant
- Blue Jay*
- Red-tailed Hawk (only northern populations migrate)
- Ring-billed Gull**
- White-breasted Nuthatch
Then after referring to the The Birds of North America (my library has an online subscription), I will add an astrerix to those who are migratory.
*All aspects of Blue Jay migration poorly understood, although two general patterns clear: (1) some individuals usually present year-round throughout range; (2) at least some individuals depart during spring throughout range, except from peninsular Florida and Gulf Coast. Individuals that depart an area in autumn may be replaced by those migrating from farther north
**Aug and Sep dispersal widespread, congregating along lower Great Lakes. In Oct, southward migration apparent with southern portions of range showing increase in numbers. Extensive changes in north-south distribution by Nov and Dec. In Jan mean distance from northern banding and southern recovery sites greatest (about 1,600 km; Southern 1980). Northward migration begins in late Feb, increases in Mar and Apr when most adults have left southern extremes of range. First and second year birds depart later and some remain south over summer period. In s. Great Lakes, birds arrive at colonies mid to late Mar.
How many days is the growing season here (from frost to frost)? Q19 of The Big Here Quiz
According to this gardening website, first frost in Windsor Ontario is October 22nd and last frost is April 25th which would make the season 180 days.
Windsor, Ontario has the most growing degree-days in Canada. (definition of GGD)
Windsor, Ontario has the most growing degree-days in Canada. (definition of GGD)
Which (if any) geological features in your watershed are, or were, especially respected by your community, or considered sacred, now or in the past?
Geological features? They are few and far between in these parts.
Evidently, Talbot Road followed a natural ridge of glacial moraine which stretched from Windsor to Point Pelee and if I'm not mistaken, it was originally a trail used by the First Nations people in this area. But a road is hardly considered 'sacred'.
So, let's just say, "everything/nothing".
Evidently, Talbot Road followed a natural ridge of glacial moraine which stretched from Windsor to Point Pelee and if I'm not mistaken, it was originally a trail used by the First Nations people in this area. But a road is hardly considered 'sacred'.
So, let's just say, "everything/nothing".
Thursday, February 28, 2008
Right here, how deep do you have to drill before you reach water? Q17 of The Big Here Quiz
The Sustainable Water Well Infrastructure (SWWI) Expert Panel Report: 'Water Well Sustainability in Ontario' [pdf] : Ontario has two principal geologic materials, which can be tapped for groundwater supply: fractured bedrock and sand and/or gravel overburden deposits. Bedrock is found throughout the Province and is the result of several billion years of geologic activity. The sand and gravel deposits, which are less than 100,000 years old, are associated with advances and recessions of continental ice sheets that covered the Province. Together, these two geologic formations form aquifers which provide storage for groundwater resources and a perpetual water supply to wells... Adequate groundwater for domestic supplies of up to 5 m3 /day can usually be obtained by drilling wells a few tens of metres into most of the bedrock or overburden materials found in Ontario...
The Dundee and Detroit River aquifers are also found in the southwest corner of the Province (south of Lake St. Clair), but the water is often sulphurous. As a result, it is mainly used for irrigation purposes. The mineralization in this area increases with depth. The region between London, Sarnia and the north shore of Lake Erie is underlain by shales. These formations yield small supplies and the water quality is usually poor.
Once I realized that I should be searching for the word, 'aquifer' as opposed to 'groundwater table' or 'water well essex windsor', I was finally able to find information on the topic:
Analysis of Agricultural Water Supply Issues (pdf) : The Southwestern Area has two major bedrock aquifers -- the Dundee Formation and the Detroit River Group (Lucas and Amherstburg Formations). The Detroit River Group has the highest permeability of the two but both are widely exploited for domestic, municipal and industrial uses... The upper portions of the Detroit River Group is used as a plentiful irrigation supply south of Lake St. Clair. The supply however, can be sulphurous in places.
This has been the hardest question so far. The closest information I can get to "right here" is the proposed second span of the Ambassador Bridge:
Ambassador Bridge Replacement Span – Environmental Presentation:
* Four Distinct Aquifers:
- Water Table aquifer – essentially non-existent
- Overburden aquifer – within 4 meters of surface regionally, near surface in site study area, has generated artesian conditions
- Contact aquifer – located at bedrock/overburden contact zone, largest aquifer with respect to area
- Bedrock aquifer – located within the bedrock, has generated artesian conditions
Again, my profound lack of understanding of the geology and geography of where I live, has humbled me greatly.
Tuesday, February 19, 2008
Where is the nearest earthquake fault? When did it last move? Q16 of The Big Here Quiz
It appears that the closest fault to my home is the "Electric fault" and there has been some slight earthquake activity sometime within the last five years (I don't have the patience to look for more specific information from Natural Resources Canada's Earthquake Database).
It took me a while to find an article with a map as clear as the one above (with no thanks to you, Geoscan database). The world of earth science is not an easy one to navigate as a layperson. Even through I have a degree in Geography and Environmental Science, I have a very hard time with the language of geology.
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