opplevelse

Which program did you use to do the HDR and how many exposures? The two I noticed it on were 2 and 6 (the beach shot and the old church shot). In particular with the old church shot, the highlight around the church outline is very obvious and it looks a little faked IMHO. This is a very common problem with using the Shadow/highlight tool in PS, but it can also occur in some HDR merging programs as the program takes a radius to blend the different exposures. Dont get me wrong, they are really nice pics, just trying to give some constructive criticism

BTW There is a Terra MODIS shot due for 14:05 today, which should be smack bang over Bertha, will provide a good view. will put it up when it is uploaded.

Nice pics but a bit of overuse of the old "Shadow/Highlight" function in a few of them. Only ever use this tool on the full resolution picture, try increasing the radius of the tool and the mid tone contrast. Also only increase the intensity to the point that YOU can notice its use, then drop it back a bit. It will then be a little less obvious that you have done it.

GRrrrr stupid bloody forum image rules wont allow me to directly link :mad: Most recent track map Track certainty is increasing (see comments below) but she will be moving into an area of high shear (40-50kts) which will weaken and eventually destroy her. Wind shear (click for larger) Stearing forecast notes A little storm to start to the season

Can you draw what you mean3 because I am a little lost I am afarid!

Ok did it look something like this? http://apod.nasa.gov/apod/ap040112.html There are literally hundreds of photos of them. I have only seen them 3 times myself http://images.google.com.au/images?sourcei...sa=N&tab=wi

probably a "hole punch" cloud ... i'll post some example photos later, but basically what you saw was probably not being sucked up but actually falling down. Ice crystals precipitating out of the cloud often form a funny kind of tail that can look like the cloud being sucked up. At a friends house now but will come bck to this later for you!

huge thunderstorm just hit oslo with 2-3 strikes a second of CGs and ICs very strong outflows and multiple downbursts ... I have never seen anything like this in Norway before ... AWESOME!

Stinking hot day here ... only 11:30 and already 27.7C outside my place. Definitely a vastly different summer than last year, and a warm one for Norway. Will be interesting to see if we get any convection today.

I was about to comment on the same thing ... perhaps a substation? still nice show! :lol:

Jesus mate, settle down we were not having a go at you It will be an interesting study in how micro climatic conditions can affect water temps near the sea shore, it will be interesting to see how they correlate to tides as well! We were just pointing out that your readings will not really be useful for any climate change type analysis, but that is not to say it wont be useful for another type of study ... Dont take things so personally, you'll be an unhappy bloke if you do!

Nice pics! Their cousins, Nacreous / Polar stratospheric clouds (as oposed to Noctilucent / Polar mesospheric clouds) are seen reasonably often here in winter While more common, your Polar mesospheric clouds we dont really see, as it never really gets dark enough. I posted some pics of Nacreous clouds here a while back, but those shots of yours are lovely well done

Ummmm Is there a reason this is in the climate change forum because perhaps I am a little slow, but wont the temperatures close to shore (i.e. near the beach) be strongly (and overwhelmingly so) affected by the prevailing meso/micro climatic conditions in the region? They I mean, other than telling you how warm (or rather cold) swimming at that particular beach will be, what use are they in the greater scheme of things? It would be interesting if you ploted daily temperatures and solar radiation along with them, because I will bet you there will be a direct relationship.

Just got back from Portugal, where the weather was lovely and warm, but on the way there I snapped some pics of a lovely bubbling Oslo sky. Convective activity has settled down now, but still some lovely weather and the possibility for some better conditions on the weekend.

No, an atmospheric sounding is where a weather baloon is released and records, temperature, pressure dewpoint windsped and direction into the upper atmosphere ... http://en.wikipedia.org/wiki/Atmospheric_sounding You can download the data from http://weather.uwyo.edu/upperair/sounding.html. The most common form is the "Skew-T" plot and can be used to detirmine the stability of the atmosphere. For example, it can tell you whether a theoretical parcel of air will rise (creating free convection and this is associated with thundersorms and instability) or not. This is an example of a skew-t plot created from a sounding in Stavanger Pity you have moved this to international, it was about the summer, and now I doubt anyone will see it, Norway, aint exactly like, I dunno, Indonesia in comparison to the UK ... oh well.

If anyone cares, My primary weapon of choice ... Canon 30D my most commonly used lens (and one of my faves) ... EFS 17-85 IS-USM lens ... -= Ø =- for some example shots

Thanks, interesting paper

Thanks SIG100! and good to hear from you (have a look at my sig ) I am well aware of met.no and the new (much better) collabaration with NRK site www.yr.no but I am interested in finding soundings from Oslo ... I just dont think they do them

Ohh this is a fantasic example of a Karman vortex street It occurs in the wake of an island or other protrusion on a flat surface, like the sea. there are dzens of examples, but you can have a read of them here ... http://en.wikipedia.org/wiki/K%C3%A1rm%C3%A1n_vortex_street a fascinating example of fluid mechanics at work!

Yes you are correct. Looking a the pics again, they are certainly not sundogs, and I do not think they actually form part of an arc. ... and yes, polarising glasses will make them look pretty special, particularly if they are around 90deg away from the sun on either side. -hijack mode on- But for clarification the pics I posted are not normal iridescent couds. They are iridescent nacreous or polar stratospheric clouds ... they are far from "ordinary" and are a sight to behold if you get to see them! They are the highest clouds in the earths atmosphere, and last year i watched them from Gardemoen ariport, at 5pm at night, when all else was pitch black ... simply awesome to see -hijack mode off-

Yes that would be interesting! The atmosphere continues to feel unstable, and judging by the clouds, and convective development over the course of a day, I think I am right. Unfortunately I do not seem to be able to find any decent soundings around Oslo (Closest are Stavanger and Gotenborg). The Skew T's from both these sites show a slight instability in the 00Z data, but that is not consistant with the extent of development I could see in the later afternoon The Norwegians tell me this current setup is reasonably unusual. Afternoon thunderstorms are the realm of the tropics, not 60deg north! But what is weired for me (being an Antipodean), is that we are seing this convective atmosphere, with 15-18C ground temps! That is bizaare! Unfortunately I have a feeling that the unstable part is only the lower 2-3000m as full development in the late afternoon seems to be stopping at about 10,000ft ... GRRR Where is that Oslo sounding?!

Doesnt look like a sun dog, wrong position in the sky, they are normally to the left and right of the sun, not underneath it as those appear to be. Could be part of one of the many "Sun" arcs , either way, a nice example of alto stratus, with ice crystals. Looks ALMOST like a Nacreous cloud, but the sun is way to high for them to be visible. These are some nacreousclouds showing irridescence I captured earlier this year in a little town called Geilo in Southern Norway. click for larger I have a whole pile of other Nacreous shots, but that is a bit off topic.

Mammatus clouds, Oslo, 8th june 2008 ... Not the greatest example in the world, but nice enough sunset I guess Edited to fix size.

osmposm, fantastic, thank you for the detailed description! So eaxactly which are the three stations involved and how is the "mean of the three stations for the day" calculated, is based on hourly observations or every observation made by the station?

forgive my N00Bness ... but ... CET?