What's new
New posts
New media
New media comments
New profile posts
New review items
Latest activity
Forums
New posts
Search forums
Gallery
New media
New comments
Search media
Reviews
New items
Latest content
Latest reviews
Latest questions
Brands
Search reviews
Opus
Birds & Bird Song
Locations
Resources
Contribute
Recent changes
Blogs
Members
Current visitors
New profile posts
Search profile posts
ZEISS
ZEISS Nature Observation
The Most Important Optical Parameters
Innovative Technologies
Conservation Projects
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
BirdForum is the net's largest birding community dedicated to wild birds and birding, and is
absolutely FREE
!
Register for an account
to take part in lively discussions in the forum, post your pictures in the gallery and more.
Forums
Birding
Birds & Birding
Easterlies
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="johnraven" data-source="post: 1583290" data-attributes="member: 14963"><p>We've had a bit more turn up - there were 7 scarce+ records in EA yesterday, inc two Ickys.</p><p></p><p>I've re-estimated the statistical model, now using the right function form (Poisson regression) and now with October data.</p><p>- there is a clear underlying peak in records in late Sep/early Oct</p><p>- SE winds are good in October (they are no use in September, apparently). Reverse migration?</p><p>- rain is now explicitly included</p><p></p><p>So the new forecasts are:</p><p>Today - 5</p><p>Saturday - 9</p><p>Sunday - 8</p><p>Monday - 7</p><p>Tuesday - 12</p><p>Wednesday - 11</p><p>Thursday - 13</p><p></p><p>The sharp up-turn next week is due to easterly winds over Copenhagen (which I use as my proxy for the source). Fairly brisk NE winds today are the main driver of the forecast upturn tomorrow, although 9 is fairly moderate for a weekend in mid-September. On the other hand, 13 for Thursday is reasonably 'monster'.</p><p>John</p><p></p><p>[Edited to correct calculation mistake]</p></blockquote><p></p>
[QUOTE="johnraven, post: 1583290, member: 14963"] We've had a bit more turn up - there were 7 scarce+ records in EA yesterday, inc two Ickys. I've re-estimated the statistical model, now using the right function form (Poisson regression) and now with October data. - there is a clear underlying peak in records in late Sep/early Oct - SE winds are good in October (they are no use in September, apparently). Reverse migration? - rain is now explicitly included So the new forecasts are: Today - 5 Saturday - 9 Sunday - 8 Monday - 7 Tuesday - 12 Wednesday - 11 Thursday - 13 The sharp up-turn next week is due to easterly winds over Copenhagen (which I use as my proxy for the source). Fairly brisk NE winds today are the main driver of the forecast upturn tomorrow, although 9 is fairly moderate for a weekend in mid-September. On the other hand, 13 for Thursday is reasonably 'monster'. John [Edited to correct calculation mistake] [/QUOTE]
Insert quotes...
Verification
Post reply
Forums
Birding
Birds & Birding
Easterlies
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more...
Top