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Old 06-28-2017, 05:18 PM
 
Location: Ipswich,England
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Windsor will be the same sun hours as Toronto correct ?
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Old 06-28-2017, 05:19 PM
 
Location: Ipswich,England
2,132 posts, read 1,369,890 times
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Quote:
Originally Posted by Saritra View Post
I would say I'm pretty surprised by that big dark area in China. Is there some kind of geographic cause for that?

Pollution
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Old 06-29-2017, 10:29 AM
 
Location: Seattle WA, USA
5,699 posts, read 4,925,642 times
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Quote:
Originally Posted by TorshavnSunHolidays View Post
yeah - it is a bit sunnier ,but there must be sun records for border towns - then adjust the difference ,

would be nice to see a uniform database
Here are all the cities in the region that have sunshine data.

BC
(49°23′09″N) Hope: 1,506.4 hr / 2,043.3 mm
(49°15′N) Vancouver: 1,937.5 hrs / 1,189 mm
(49°3′N) Abbotsford: 1,886.7 hr / 1,537.8 mm
(49°09′51″N) Nanaimo: 1,940.2 hr / 1,165.4 mm
(48°25′43″N) Victoria: 2,193.3 hr / 607.6 mm
WA
(47°57′4″N) Forks: 1,530.3 hr / 2,528.3 mm
(47°36′35″N) Seattle: 2,169.7 hr / 952.2 mm
OR
(45°31′12″N) Portland: 2,340.9 hr / 915.2 mm

and for the interior

BC
(50°40′34″N) Kamloops: 2,079.8 hr / 277.6 mm
(50°16′00″N) Vernon: 2,026.6 hr / 425.6 mm
(49°53′01″N) Kelowna: 1,948.9 hr / 386.9 mm
(49°29′28″N) Penticton: 1,923.3 hr / 346.0 mm
(49°19′32″N) Castlegar: 1,854.2 hr / 750.9 mm
WA
(47°39′32″N) Spokane: 2,575.3 hr / 420.6 mm
(46°3′54″N) Walla Walla: 2,449.2 hr / 500 mm
ID
(43°37′N) Boise: 2,993.4 hr / 297.9 mm
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Old 06-29-2017, 12:54 PM
 
Location: Bologna, Italy
7,501 posts, read 6,289,161 times
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Quote:
Originally Posted by TorshavnSunHolidays View Post
I think it's the type of coloring that makes it look closer than it is
I don't know, usually we're always way cloudier, in that case the differences seem to be lower, but also because it is a world map.
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Old 06-29-2017, 02:04 PM
 
14,221 posts, read 6,958,731 times
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Quote:
Originally Posted by TorshavnSunHolidays View Post
Pollution
nope
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Old 06-29-2017, 03:00 PM
 
Location: Mid Atlantic USA
12,623 posts, read 13,924,830 times
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Quote:
Originally Posted by TorshavnSunHolidays View Post
Windsor will be the same sun hours as Toronto correct ?

No Windsor would be more like Detroit. Windsor being Canadian used the C-S method and averaged 2261 hours. Higher than places like Toulouse or Genoa or Milan or Venice. The poster makes it sound as if Detroit were nothing but cloud. You cannot go by Pt. Cloudy, Cloudy, Mostly Cloudy number of days etc. That is a highly inaccurate way to measure sunshine hours in the East cause we rarely get those days in summer. Most summer days are pt cloudy. I can't tell you how often the airport reading says mostly cloudy here, in any season, and the sun is shining bright and there are clouds about in the sky but far from cloudy.

Anyway, Detroit using the same numbers as Windsor is certainly not as gloomy as the Detroit poster believes compared to say northern Europe. What would he think living there considering Milan, Toulouse, Genoa, Bologna, Rimini, and Venice all get less sunshine hours annually than Windsor. Even a place like Plovdiv in Bulgaria is barely sunnier.

And keep in mind, Detroit is in one of the least sunny regions of the USA when you look at sunshine maps for this country. The Great Lakes are known for that due to winds blowing over the lakes and creating clouds and fog, etc. even in summer.

The diff between Detroit (US method) and Windsor (Europe method) is 172 hours. Now this is just anecdotal, but based on reading expat forums and talking to Americans (like my own brother) who have lived in Europe, they feel it is definitely cloudier than here and easily noticeable.

I think most Americans when living in Europe are surprised at how cloudy much of Europe really is compared to here, different sunshine methods notwithstanding.
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Old 06-29-2017, 03:54 PM
 
Location: Trondheim, Norway - 63 N
3,600 posts, read 2,691,940 times
Reputation: 1872
Quote:
Originally Posted by PCALMike View Post
nope
Yes, pollution decreases sunshine hours in China:
The study shows that spatiotemporal changes in sunshine hours in China could largely be explained in terms of API [API = Air Pollution Index].
The magnitude of the effect of air pollution on sunshine hours in China - Wang - 2012 - Journal of Geophysical Research: Atmospheres - Wiley Online Library

This can also decrease sunshine hours in other large cities.
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Old 06-29-2017, 04:08 PM
 
Location: Ipswich,England
2,132 posts, read 1,369,890 times
Reputation: 338
Quote:
Originally Posted by grega94 View Post
Here are all the cities in the region that have sunshine data.

BC
(49°23′09″N) Hope: 1,506.4 hr / 2,043.3 mm
(49°15′N) Vancouver: 1,937.5 hrs / 1,189 mm
(49°3′N) Abbotsford: 1,886.7 hr / 1,537.8 mm
(49°09′51″N) Nanaimo: 1,940.2 hr / 1,165.4 mm
(48°25′43″N) Victoria: 2,193.3 hr / 607.6 mm
WA
(47°57′4″N) Forks: 1,530.3 hr / 2,528.3 mm
(47°36′35″N) Seattle: 2,169.7 hr / 952.2 mm
OR
(45°31′12″N) Portland: 2,340.9 hr / 915.2 mm

and for the interior

BC
(50°40′34″N) Kamloops: 2,079.8 hr / 277.6 mm
(50°16′00″N) Vernon: 2,026.6 hr / 425.6 mm
(49°53′01″N) Kelowna: 1,948.9 hr / 386.9 mm
(49°29′28″N) Penticton: 1,923.3 hr / 346.0 mm
(49°19′32″N) Castlegar: 1,854.2 hr / 750.9 mm
WA
(47°39′32″N) Spokane: 2,575.3 hr / 420.6 mm
(46°3′54″N) Walla Walla: 2,449.2 hr / 500 mm
ID
(43°37′N) Boise: 2,993.4 hr / 297.9 mm
cheers grega - they include the USA measurements as i understand it
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Old 06-29-2017, 04:10 PM
 
Location: Ipswich,England
2,132 posts, read 1,369,890 times
Reputation: 338
Quote:
Originally Posted by PCALMike View Post
nope
OK , but thats how i understood it - any other reason ? because they figures are unnaturally low
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Old 06-29-2017, 04:15 PM
 
Location: Ipswich,England
2,132 posts, read 1,369,890 times
Reputation: 338
Quote:
Originally Posted by tom77falcons View Post
No Windsor would be more like Detroit. Windsor being Canadian used the C-S method and averaged 2261 hours. Higher than places like Toulouse or Genoa or Milan or Venice. The poster makes it sound as if Detroit were nothing but cloud. You cannot go by Pt. Cloudy, Cloudy, Mostly Cloudy number of days etc. That is a highly inaccurate way to measure sunshine hours in the East cause we rarely get those days in summer. Most summer days are pt cloudy. I can't tell you how often the airport reading says mostly cloudy here, in any season, and the sun is shining bright and there are clouds about in the sky but far from cloudy.

Anyway, Detroit using the same numbers as Windsor is certainly not as gloomy as the Detroit poster believes compared to say northern Europe. What would he think living there considering Milan, Toulouse, Genoa, Bologna, Rimini, and Venice all get less sunshine hours annually than Windsor. Even a place like Plovdiv in Bulgaria is barely sunnier.

And keep in mind, Detroit is in one of the least sunny regions of the USA when you look at sunshine maps for this country. The Great Lakes are known for that due to winds blowing over the lakes and creating clouds and fog, etc. even in summer.

The diff between Detroit (US method) and Windsor (Europe method) is 172 hours. Now this is just anecdotal, but based on reading expat forums and talking to Americans (like my own brother) who have lived in Europe, they feel it is definitely cloudier than here and easily noticeable.

I think most Americans when living in Europe are surprised at how cloudy much of Europe really is compared to here, different sunshine methods notwithstanding.
my bad - i meant to say Detroit . Not sure why i said Toronto (a Canadian city at that ) .

anyway , i was just saying that Detroit and Windsor should measure up exactly . That could be the basis for getting accurate sun hours (or euro equiv)


Yep , i sure know how cloudy Europe is
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