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Post by grega94 on Jan 29, 2018 7:57:53 GMT -5
That map seems not too bad for the 10C - isoterm, although sheltered locations in northern Iceland also goes above 10C in warmest month. However, for the green line marking the treeline it is rather ridiculous for Norway at least. Large forests north of that green line, both conifer and decidous. Seems the green line has been drawn in Norway where the natural spruce forest had its migration halted by the Saltfjell mountains. But what about the pine, birch, aspen etc dominated forest further north? Yeah that's true. Northern Norway: LinkMurmansk: LinkNorthern Siberia: LinkLink |
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Post by rozenn on Jan 29, 2018 17:02:41 GMT -5
The supposedly tundra area in northeasternmost Europe / NW Siberia is strange too. Seems like the tree cover is indeed sparser there, though only to the east of the Urals. Probably doesn't have anything to do with climate tho.
Edit: dammit hadn't seen grega's post!
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Post by Nidaros on Jan 29, 2018 17:30:28 GMT -5
The green line marking the treeline it is rather ridiculous for Norway at least. Large forests north of that green line, both conifer and decidous. What about the pine, birch, aspen etc dominated forest further north? Yeah that's true. Northern Norway: LinkMurmansk: LinkNorthern Siberia: LinkLink" "Arctic" aka Northern Norway - near Bardufoss: linkNear Harstad's airport, also Northern Norway: link |
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Post by overdrive1979 on Jan 31, 2018 16:15:21 GMT -5
Average number of days with thunderstorm per year in Spain, Portugal, southern France, northwesternmost Africa and neighbouring seas and oceans:  |
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Post by ral31 on Feb 3, 2018 18:18:46 GMT -5
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Post by alex992 on Feb 3, 2018 18:21:18 GMT -5
Diurnal range maps of US. Big diurnal range areas in summer are all in the west; California, Oregon and Nevada look like they have the most. Interesting in winter, diurnal range goes down going north along the east coast and then up again [ dryness more of an effect than lower sun angle?]
I think UHI could have an effect here too? |
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Post by nei on Feb 3, 2018 18:31:07 GMT -5
I think UHI could have an effect here too? Unless the map is all from really built up stations, don't think UHI is widespread to affect a regional average; plenty of rural stations everywhere without UHI |
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Post by alex992 on Feb 3, 2018 18:35:36 GMT -5
I think UHI could have an effect here too? Unless the map is all from really built up stations, don't think UHI is widespread to affect a regional average; plenty of rural stations everywhere without UHI[/quote] Ah. I admittedly didn't click the map before viewing. I assumed the lower ranges would be center around Philly/NYC/Boston. Interesting how in Florida the biggest diurnal ranges are right where the Peninsula meets the Panhandle. Least ocean influence in that region? |
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Post by nei on Feb 3, 2018 18:37:58 GMT -5
Interesting how in Florida the biggest diurnal ranges are right where the Peninsula meets the Panhandle. Least ocean influence in that region? don't know Florida that well, but maybe it's at a bad angle to get the most Gulf of Mexico influence compared to further south or west along the Gulf Coast? |
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Post by alex992 on Feb 3, 2018 18:40:20 GMT -5
Interesting how in Florida the biggest diurnal ranges are right where the Peninsula meets the Panhandle. Least ocean influence in that region? don't know Florida that well, but maybe it's at a bad angle to get the most Gulf of Mexico influence compared to further south or west along the Gulf Coast? Definitely. If you look at a map, places like Gainesville and Lake City are the furthest areas from the coastline in the state. |
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Post by nei on Feb 3, 2018 18:52:57 GMT -5
another map by him; he doesn't post that many Europe maps. coldest record temperatures. All the yellow and milder and much of the green [excluding far away Norway and Scotland ] was part of the Roman Empire. Scandinivia outside of coastal Norway gets some rather extreme cold for rather mild averages; showed in my chart Umeå gets a long "tail" of rare but much colder than average temperatures.
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Post by Deleted on Feb 3, 2018 19:03:00 GMT -5
That map is incorrect for Ireland.
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Post by knot on Feb 5, 2018 0:51:56 GMT -5
That map is incorrect for Ireland. Which map? If it's the snowfall map you're referring to, then I'm afraid it's correct.   |
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Post by nei on Feb 6, 2018 23:57:13 GMT -5
Percentage of annual normal precipitation by season, for U.S., Canada, and Mexico. You can see maps for each month, or other groups of months in link below. I like that it shows Mexico rather than just US & Canada. Can see where the US subtropical wet & dry belts end further south and if they move south into Mexico during the cooler season. Baja California shares the same dry summer pattern as US California. Most of the rest of Mexico gets wet summers, dry winters; though autumn is wet while the Pacific has much drier springs than the Gulf side. Almost look the west coast dry zone starts in Mexico in the spring [maybe winter] when the sun begins to be near overhead then moves north to California for the summer. |
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Post by nei on Feb 7, 2018 21:31:34 GMT -5
with its long consistent winters, Scandinavia looks cold by this measure.
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Post by knot on Feb 8, 2018 0:32:41 GMT -5
with its long consistent winters, Scandinavia looks cold by this measure. Just BOKE @ the British Isles... |
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Post by Nidaros on Feb 8, 2018 1:21:17 GMT -5
nei: would have liked better resolution for the map, so the coastal areas was more visible, thats were most people live. Also there is clearly a lack of weather data from inland Iceland. What is the base periode?
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Post by glacier on Feb 14, 2018 13:55:04 GMT -5
That map seems not too bad for the 10C - isoterm, although sheltered locations in northern Iceland also goes above 10C in warmest month. However, for the green line marking the treeline it is rather ridiculous for Norway at least. Large forests north of that green line, both conifer and decidous. Seems the green line has been drawn in Norway where the natural spruce forest had its migration halted by the Saltfjell mountains. But what about the pine, birch, aspen etc dominated forest further north? Maybe the green line is showing the spruce extent? |
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Post by Nidaros on Feb 14, 2018 14:27:07 GMT -5
That map seems not too bad for the 10C - isoterm, although sheltered locations in northern Iceland also goes above 10C in warmest month. However, for the green line marking the treeline it is rather ridiculous for Norway at least. Large forests north of that green line, both conifer and decidous. Seems the green line has been drawn in Norway where the natural spruce forest had its migration halted by the Saltfjell mountains. But what about the pine, birch, aspen etc dominated forest further north? Maybe the green line is showing the spruce extent? It is explicitly named as Treeline on the map |
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Post by glacier on Feb 14, 2018 17:15:41 GMT -5
It is explicitly named as Treeline on the map Ah, I missed that for some reason. So you're saying that pine grows further NORTH than spruce in Norway!  Are you guys a bunch of insane racist pedophiles or something? That's how sick that sounds to us in North America. It's just wrong. Pine stops like 1000km south of the Spruce line. If you have some freaky pine that grows that far north, perhaps it makes sense to use a tree that has the same climatic requirements as the "tree line" marker. |
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Are you guys a bunch of insane racist pedophiles or something? That's how sick that sounds to us in North America. It's just wrong. Pine stops like 1000km south of the Spruce line. If you have some freaky pine that grows that far north, perhaps it makes sense to use a tree that has the same climatic requirements as the "tree line" marker.