Noctilucent Cloud Season 2023

[Arnie Pie]

Have just notices the lidar is on at Kuehlungsborn again, 3 nights on the trot now

The laser seams to be attracting  aerosols to the beam ( another ingredient  )

AllskyCam_KBORN - Leibniz-Institut für Atmosphärenphysik, Kühlungsborn

WWW.IAP-KBORN.DE

 

Edited June 3, 2023 by Arnie Pie

[Arnie Pie]

Just checked on the state of the Sun at spacewearher.com, and found an interesting article called

THE THERMOSPHERE IS HEATING UP:

May I suggest that this will be a reason for the slow start to this season

 

 

 

 

 

[mushymanrob]

7 hours ago, Arnie Pie said:

Just checked on the state of the Sun at spacewearher.com, and found an interesting article called

THE THERMOSPHERE IS HEATING UP:

May I suggest that this will be a reason for the slow start to this season

 

 

 

 

 

and ive read an article saying the mesosphere is cooling down! lol... co2 having the opposite effect up there to down here..

[Jamie M]

Stefan on the German NLC forum seems to agree these are the actual first NLCs of the season.

The translated text reads:

"Noctilucent clouds taken 5 minutes ago near Kaluga!

Height 15° strictly above the northern part of the horizon, field size 40° (in azimuth).

Author: Anastasia Bilan

22:55 June 3, 2023"

[Jamie M]

Very strong echoes this morning 

[Southern Storm]

22 minutes ago, Jamie M said:

Stefan on the German NLC forum seems to agree these are the actual first NLCs of the season.

The translated text reads:

"Noctilucent clouds taken 5 minutes ago near Kaluga!

Height 15° strictly above the northern part of the horizon, field size 40° (in azimuth).

Author: Anastasia Bilan

22:55 June 3, 2023"

Almost definitely NLC which is great to see, especially after seeing so many overoptimistic post on social media.

 

13 minutes ago, Jamie M said:

Very strong echoes this morning 

Encouraging signs, with clear skies likely in the coming days, hopefully the UK will get it's first display of the season.

Edited June 4, 2023 by Southern Storm

[Jamie M]

Just now, Southern Storm said:

Almost definitely NLC which is great to see, especially after seeing so many overoptimistic post on social media.

 

Encouraging signs, with clear skies likely in the coming days, hopefully the UK will get it's first display of the season.

I should think more of Europe will be seeing them tonight and over the next few days. 

[mushymanrob]

click the "context" button, theres another shot of them from tartarstan...

kaluga is 36 degrees east , tartarstan is 50.... sadly that means, according to my calculations, that those nlcs will be north of the uk between about 2pm and 6 pm.... today.

[Jamie M]

METEOWEB.RU

Meteoweb does also a database of NLC reports

Has a couple from May but not sure about that

[mushymanrob]

Forget Flensberg.... if thats 9.4 degrees East, which it is, and 3 degrees = 1 hour, then by the time Flensbergs display has got here, itll be light! lol

[Arnie Pie]

1 hour ago, mushymanrob said:

Forget Flensberg....

Or ..  it may just end up like 12 June 2022

Page 8 from the archives

Edited June 4, 2023 by Arnie Pie

[Jamie M]

1 hour ago, Arnie Pie said:

Or ..  it may just end up like 12 June 2022

Page 8 from the archives

Brilliant NLCs - good that it was the weekend as I'd be finished during the week at that hour  

[Arnie Pie]

23 minutes ago, Jamie M said:

Brilliant NLCs

 

The NLC`s that appeared over Flensburg (at midnight) looked very similar in structure and altitude to the ones that were viewed over UK skies, by many members

Edit; excuse the thumbnail .. larger in Archive

Edited June 4, 2023 by Arnie Pie

[Jamie M]

5 minutes ago, Arnie Pie said:

 

The NLC`s that appeared over Flensburg (at midnight) looked very similar in structure and altitude to the ones that were viewed over UK skies, by many members

Suppose it depends just how extensive that NLC band is.

The band last night stretched from the Urals (59E) to Bryansk (34E) apparently.

I'm trying to figure out the relation of temperature shown on the charts here to the formation of NLCs

http://meteoweb.ru/astro/nc.php

There's some info here

Edited June 4, 2023 by Jamie M

[mushymanrob]

1 hour ago, Jamie M said:

Suppose it depends just how extensive that NLC band is.

 

Exactly... the number of times flensburg has had a great display and we have had nothing....

[Arnie Pie]

39 minutes ago, mushymanrob said:

Exactly... the number of times flensburg has had a great display and we have had nothing....

I can understand that you may feel it coincidental that the NLC` shown over Flensburg turned up later that morning, despite the similarity's to the display (including rare vertical veils.)

What i don't understand is your belief that they couldn`t of made the transit

The 5 day transit of NLC`s around the Artic is not a scientific constant its an approximate from NASA

We have seen that in the past while trying to make forecasts using the AIM daisies,
sometimes it worked, other time`s it didn`t.

I`m not sure that it can be taken down to transit per hour, with any confidence of a high level of accuracy.

[Jamie M]

Very weak NLCs in Serpukhov & Moscow (both 37E) just over 15 minutes ago 

[mushymanrob]

2 hours ago, Arnie Pie said:

I can understand that you may feel it coincidental that the NLC` shown over Flensburg turned up later that morning, despite the similarity's to the display (including rare vertical veils.)

What i don't understand is your belief that they couldn`t of made the transit

The 5 day transit of NLC`s around the Artic is not a scientific constant its an approximate from NASA

We have seen that in the past while trying to make forecasts using the AIM daisies,
sometimes it worked, other time`s it didn`t.

I`m not sure that it can be taken down to transit per hour, with any confidence of a high level of accuracy.

well youre the one that pioneered the clock face and 5 day transit, transferring that to degrees is a practical way foreward. i have no idea whether it works or how accurate it is... what we are trying to do here is discover a most reliable way to try to predict them. it could save going out.. some of us cannot see the northern horizon from our homes and need to travel. plus im trying to promote awareness and interest in nlcs on taw.. so i need to be able ... if possible ... to be able to predict them so we can tell people they are likely.

my earlier post regarding flensburg was tongue in cheek, hence the "lol"...

on the daisys we could see just how large the area of nlcs was... sometimes they are small, in which case viewing webcams wont be accurate and i remember last season, someone, and i think it was you, forgive me if not..posted "flensburgs on fire" ... but here we got nothing, nada, zilch, zero... so in that case the areas was small. other times flensburg has had a display that we have seen... a large area ..

all im trying to do is examine the possibilies of prediction... as things stand, there are no conclusions! ill test out theories until we can find one that works or discover we cannot predict.

[mushymanrob]

31 minutes ago, Jamie M said:

Very weak NLCs in Serpukhov & Moscow (both 37E) just over 15 minutes ago 

...... and poland on webcam i believe

 

[Jamie M]

Jelgrava, latvia (23E)

[mushymanrob]

lindenburg.. possibly the same as latvia?

[Southern Storm]

Something showing on Flensburg? 

Hard to tell at this early stage 

Edited June 4, 2023 by Southern Storm

[mushymanrob]

deffo lindenburg
on the horizon
 

[Jamie M]

2 minutes ago, Southern Storm said:

Something showing on Flensburg? 

Hard to tell at this early stage 

Definitely it 

[Jamie M]

Looks like it'll be horizon huggers if anything here in the UK