Long term forecasting 'cracked'

Post Reply
ourarka
Posts: 566
Joined: Tue Jan 11, 2011 10:01 pm
Location: East Sussex

Long term forecasting 'cracked'

Post by ourarka » Wed Apr 02, 2014 10:30 am

No link to the article, as The Times charge for reading it online, but they ran a cover story today that the Met Office have 'cracked' long term forecasting .... particularly for the winter.

They said that previously, computer models fared only slightly better than chance, but that their new modelling software is 63% accurate (but that they hope it will rise to 80% over the coming years). If we assign chance as 50/50, isn't 63% still only slightly better than chance? I just wanted to throw it out there to the guys who knew about this sort of thing as it seemed very dodgy to me. Following that appalling 'research' on 7-a-day fruit/veg (which had more holes than a slice of swiss cheese .... but the papers decided was groundbreaking) is this genuine advances in meteorology, or more dodgy reporting (from a paper that we might expect better)?


otorongo
Posts: 1426
Joined: Tue Jan 10, 2012 5:12 pm
Location: sub-subtropical London

Re: Long term forecasting 'cracked'

Post by otorongo » Wed Apr 02, 2014 10:37 am

If chance is 50/50, then 63/37 sounds much better than chance!
That's almost 2 out of 3 times right.


User avatar
Adam D
Posts: 3574
Joined: Tue Jul 14, 2009 10:47 pm
Location: Scotland

Re: Long term forecasting 'cracked'

Post by Adam D » Wed Apr 02, 2014 10:45 am

otorongo wrote:If chance is 50/50, then 63/37 sounds much better than chance!
That's almost 2 out of 3 times right.
otorongo is correct, they have essentially doubled their accuracy, which is pretty good going.


User avatar
GoggleboxUK
Posts: 16877
Joined: Fri Mar 04, 2011 9:58 pm
Location: Preston Lancashire

Re: Long term forecasting 'cracked'

Post by GoggleboxUK » Wed Apr 02, 2014 11:44 am

So they've admitted it's all guesswork but now think they've got software that will make them guess right 13% more effectively?

In essence, they are guessing that their guesses will be better guesses.

I'll stick to my tried and tested method of looking out of the window.

:lol:
Once upon a time there were 3 little bears. Now there's thousands of them.


ourarka
Posts: 566
Joined: Tue Jan 11, 2011 10:01 pm
Location: East Sussex

Re: Long term forecasting 'cracked'

Post by ourarka » Wed Apr 02, 2014 11:56 am

GoggleboxUK wrote:will make them guess right 13% more
They will argue that they have improved by 26% on their previous accuracy.

Otorongo, you are right and if they can get to 80% then they'll really have something to shout about. However, at being right 2 in 3 times, I am not sure that is something that councils, retailers, power companies etc will want to make their plans based upon ........ however it's better than 50/50 .......... oh I give up!


User avatar
flounder
Posts: 5617
Joined: Mon Dec 20, 2010 5:16 pm
Location: brighton

Re: Long term forecasting 'cracked'

Post by flounder » Wed Apr 02, 2014 7:50 pm

It's amazing what you can do with seaweed and pine cones these days :wink:
my name is flounder, but you can call me.............flounder! (or Gary, just don't call me late for dinner)


Conifers
Posts: 13147
Joined: Sat Jun 20, 2009 2:11 pm
Location: Northumbs

Re: Long term forecasting 'cracked'

Post by Conifers » Wed Apr 02, 2014 9:01 pm

flounder wrote:It's amazing what you can do with seaweed and pine cones these days :wink:
Maybe they've got bigger and better pine cones? :lol:
Image


rentalcars1211
Posts: 2
Joined: Tue Aug 07, 2018 9:41 am
Location: Dubai
Contact:

Long term forecasting 'cracked'

Post by rentalcars1211 » Thu Dec 20, 2018 10:04 am

It's a lofty goal, the code to which hasn't really been cracked. So far, long-range forecasts have been modestly successful.


Post Reply