Friday, April 4, 2014

Miscellaneous “Sun & Shadow” Items – March 2014

The following are miscellaneous sun, shade, solar and solar energy facts and comments. They were derived from our twitter feed @SunPosition

Calgary and Winnipeg hit 11 hours of daylight tomorrow Mar 2nd.


The sun rises and sets further north each day during March by about one sun diameter.


Do you want a quick way to tell where east or west is from your house?

@MaxontheCoast: sure!

RB: Rise and set will be within a degree or so of due east and west on the 20th.

@MaxontheCoast: thx - my street is supposed to be east-west. I'll check it!

@MaxontheCoast: clearly an equinox thing

RB: For even better results check set on the 18th and rise on the 19th.


12 hrs daylight in Toronto tomorrow, March 17th. And gaining 3 minutes/day.

12 hrs daylight in Ottawa on Tuesday, March 18th. And gaining 3 minutes/day.


@SkyJacked793 You'll be able to watch the sun set from your office tomorrow Mar 18th at almost exactly due west.

RB: And sunrise will be almost exactly due east on Mar 19th.

@SkyJacked793: Thanks Ralph. Sunrise I might make. My office will be closed by sunset. I tried staying late a few times but got clouds :/


The tip of a shadow follows an almost perfect west-east line on the equinox.


12 hrs daylight in Toronto today, March 17. And gaining 3 minutes/day.


Toronto gains 3 minutes of daylight per day at this time of year. Biggest daily gain of the year.


Ottawa gains 3 min 13 sec of daylight per day at this time of year. Biggest daily gain of the year.


The sun sets closest to due west tonight Mar 18th.


The sun rises closest to due east tomorrow Mar 19th.


How online maps can speed up solar site selection | GreenBiz

021114tech-at-work[1]

OAKLAND, CA - Many variables go into deciding whether a parcel of land is appropriate for solar development: the intensity of the sun's resources, how much space is available to accommodate arrays, soil types, environmental considerations, such as wetlands or endangered species status, and proximity to existing substations or three-phase towers.

Researching a site for any one factor can be challenging enough. Considering all of them simultaneously usually takes months.

Impatient with that timetable, real estate broker National Land Realty (NLR) turned to the ArcGIS online mapping and data visualization resource from Environment Systems Research Institute (Esri) to rethink how it evaluates land for solar development.

Together with Columbia, S.C-based Beitz and Daigh Geographics, NLR has created a sophisticated service that identifies prospects in weeks rather than months, displaying them interactively in a map view…

more - http://t.co/5jt5NW0i3L


Spring begins Mar 20/14 when the sun crosses the meridian thru Lac-aux-Sables QC and Southampton NY.


Cheers, Ralph

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