|
|
Post by Babu on Oct 20, 2017 13:41:54 GMT -5
How much shelter against cold winters do you think a non-broken shed with a closed door offers? Surely the temps within must be similar to the winter means, but less susceptible to extreme temperatures? Do you think a tree would stand a better chance of surviving a winter if planted in soil outside, getting covered by snow and ice, or in a pot inside such a shed? Hmm, it will offer protection from strong winds that may brake of branches. It will also offer protection from heavy snow loads that might damage branches. However, it will not offer shelter against the temperatures themselves (unless it is heated), as the shed will be at the same temperature as the air outside. But it will protect from very damp and humid conditions in the soil outside, if you have freeze - thaw cycles. On the other hand, many plants start growing to early in the spring sun, while the soil is still frozen, so the roots can't get water and the plant gets damage from lack of water - and a later freeze might damage it as well. So in the early spring, a shed is a good idea. Many cover their plants in early spring if the plant is susceptible to start growing to early in sunny weather. Depends on the plant type I guess. It's an oak sapling that I'm gonna try to make a bonsai out of. Oaks survive in Tavelsjö, but I wonder if it will survive in a pot if it stays in the shed. Surely, if a trampoline is enough to keep the ground from freezing, a shed should be less cold on the same principle, and it should get heated up more by the sun and withstand at least some extreme cold (-20'C). |
|
|
|
Post by Babu on Oct 23, 2017 5:54:32 GMT -5
Holmön in 2014. This must've been among the best 40-ish days ever in anywhere of Sweden. I'm guessing about 500-600h of sun in those 40-ish days with perhaps the sunniest 30 day streak being 450-500h. Thunderstorms, very comfortable days, and two hot weeks interspersed from one another. |
|
|
|
Post by Lommaren on Oct 23, 2017 7:06:47 GMT -5
Holmön in 2014. This must've been among the best 40-ish days ever in anywhere of Sweden. I'm guessing about 500-600h of sun in those 40-ish days with perhaps the sunniest 30 day streak being 450-500h. Thunderstorms, very comfortable days, and two hot weeks interspersed from one another. Quite impressive how July 12-Aug 11 would average 24.6C on an offshore island near 64N  I'd still pick August 2002 down here over it due to more moderate lows but not a bad one at all  |
|
|
|
Post by boombo on Oct 23, 2017 7:11:42 GMT -5
Holmön in 2014. This must've been among the best 40-ish days ever in anywhere of Sweden. I'm guessing about 500-600h of sun in those 40-ish days with perhaps the sunniest 30 day streak being 450-500h. Thunderstorms, very comfortable days, and two hot weeks interspersed from one another. Quite impressive how July 12-Aug 11 would average 24.6C on an offshore island near 64N I'd still pick August 2002 down here over it due to more moderate lows but not a bad one at all Wow is that what latitude this place is?! I was about to say those highs aren't all that amazing for the sunshine amounts with those cooler spells in between, didn't realise Holmön was up north though  |
|
|
|
Post by Babu on Oct 23, 2017 7:45:16 GMT -5
Holmön in 2014. This must've been among the best 40-ish days ever in anywhere of Sweden. I'm guessing about 500-600h of sun in those 40-ish days with perhaps the sunniest 30 day streak being 450-500h. Thunderstorms, very comfortable days, and two hot weeks interspersed from one another. Quite impressive how July 12-Aug 11 would average 24.6C on an offshore island near 64N I'd still pick August 2002 down here over it due to more moderate lows but not a bad one at all Pff, why do you want cool nights? Who wants to be cold in the morning? 18'C is perfect for lows! Now that you mention it though, Öland's northern edge had a great 50 day streak then, just as good as Holmön 2014, though not even close to being as impressive.  |
|
|
|
Post by Nidaros on Oct 23, 2017 9:07:28 GMT -5
Currently 5.6C and raining in Longyearbyen on Svalbard! That is about 12C above normal for this date (61-90).
|
|
|
|
Post by Ariete on Oct 23, 2017 11:46:00 GMT -5
|
|
|
|
Post by Babu on Oct 23, 2017 12:05:20 GMT -5
Hanko didn't drop below 20'C for like 14 days. I wonder what the Fennoscandian record is. I saw Valassaret's stat browsing my self. Pretty large temperature extremes for a Baltic island. A little larger than Holmön, but still.
|
|
|
|
Post by Nidaros on Oct 23, 2017 12:53:56 GMT -5
|
|
|
|
Post by Babu on Oct 23, 2017 13:05:25 GMT -5
Look at the sunshine at Holmön, one of Sweden's sunniest places this fall...  Edit: We had 27 3h-periods which saw sun that September. Even if we assume every one was 100% sunny, it's still only 81h, yet for some reason Umeå recorded 92h that month and I don't think Umeå was sunnier. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 24, 2017 9:59:09 GMT -5
Somebody has finally updated the Chester wiki box with the correct stats. Was it one of you guys? Before After
 |
|
|
|
Post by Lommaren on Oct 28, 2017 6:01:06 GMT -5
Somebody has finally updated the Chester wiki box with the correct stats. Was it one of you guys? How on earth could the July and August temps drop for that reference period, contrary to the rest of the world? Was KNMI talking a bunch of crap?  Wrexham is a bit more shielded than Hawarden though so perhaps the extra 50-60 m asl won't matter at all? By the way: discovered something completely absurd! Eureka's warmest night in history was 18 January (!) 1981 with a 17.2C low (22.8C high so a muggy summers day). What climate goes and even does that in the middle of winter? |
|
|
|
Post by Hiromant on Oct 28, 2017 11:13:42 GMT -5
Currently 5.6C and raining in Longyearbyen on Svalbard! That is about 12C above normal for this date (61-90). Jesus, can they ever get a break? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 28, 2017 12:11:24 GMT -5
Somebody has finally updated the Chester wiki box with the correct stats. Was it one of you guys? How on earth could the July and August temps drop for that reference period, contrary to the rest of the world? Was KNMI talking a bunch of crap? Wrexham is a bit more shielded than Hawarden though so perhaps the extra 50-60 m asl won't matter at all? KNMI probably was talking crap, it's the Dutch Met Office, obviously less accurate on British climate than the British Met Office. Although those months lost a bit, overall the average high has increased, and overall diurnals have too. I did start looking at how the highs could expect to change in the next normals, going on the decade so far. Only done July-October so far, and for the decade the highs are: July - 21.2C August - 20.6C September - 18.8C October - 15.6C (Not yet including this mild October) If we are being affected by global warming, so far it seems more pronounced in the shoulder seasons. |
|
|
|
Post by Ariete on Nov 16, 2017 11:21:20 GMT -5
Helsinki UHI during July 2009 - June 2010.  The green circle is the location of the Kaisaniemi weather station. Map maded by Achim Drebs. |
|
|
|
Post by Babu on Nov 16, 2017 11:40:02 GMT -5
Helsinki UHI during July 2009 - June 2010. The green circle is the location of the Kaisaniemi weather station. Map maded by Achim Drebs. Cool. Remarkably little UHI outside of the small city center. How is that map even measured though? |
|
|
|
Post by Ariete on Nov 16, 2017 11:56:15 GMT -5
Cool. Remarkably little UHI outside of the small city center. How is that map even measured though? Mr. Drebs drove around Helsinki with a mobile FMI weather station van for a year.  |
|
|
|
Post by Donar on Nov 16, 2017 12:01:11 GMT -5
Cool. Remarkably little UHI outside of the small city center. How is that map even measured though? Maybe from satellite images or other remote sensing data. |
|
|
|
Post by alex992 on Nov 16, 2017 12:06:20 GMT -5
Cool. Remarkably little UHI outside of the small city center. How is that map even measured though? Mr. Drebs drove around Helsinki with a mobile FMI weather station van for a year. So in the reddest part of the UHI, it's about 3-4 C warmer than at the weather station?  (if I'm reading the scale correctly). |
|
|
|
Post by Ariete on Nov 16, 2017 12:27:45 GMT -5
So in the reddest part of the UHI, it's about 3-4 C warmer than at the weather station? (if I'm reading the scale correctly). Yes, 3 degrees according to my eyes. |
|
(if I'm reading the scale correctly).