Exam (elaborations)
North Atlantic Oscillation Questions And Answers With Verified Solutions
- Course
- Institution
North Atlantic Oscillation Questions And Answers With Verified Solutions
[Show more]
Seller
Follow
StudySet
Reviews received
Content preview
North Atlantic Oscillation Questions AndAnswers With Verified Solutions
What is the North Atlantic Oscillation? (Barry, Chorley 2009) - ANSWER The
North Atlantic oscillation is a fluctuation in the pressure gradient between the
Azores High (40N) and the Icelandic low (65N) involving their mutual
strengthening or weakening.
When both are strong the NAO is in positive phase. When both are weak it is in
negative phase.
What is the NAO (Vallis 2011) - ANSWER An internal mode of climate variability
in the North Atlantic on multiple timescales.
Whilst it drives monthly variance it also shows persistence in its mean state over
decadal periods.
Controls 30% of variability in North Atlantic
It is a control on the position and strength of the jet
When is the NAO most strongly expressed? - ANSWER Winter (Barry, Chorley
2009) when the jet is strongest due to the highest temperature gradient
Is the NAO's impact more or less extensive than El Nino? - ANSWER Less
(Uppenbrinke 1999)
, What is the positive phase of the NAO associated with? - ANSWER Azores high
is higher
The icelandic low is lower
The westerlies are stronger
The jet is stronger and tilts northwards bring warm, wet weather systems to
northern Europe this brings milder conditions and more precipitaiton, also leads
to enhanced storm conditions.
There is more wind and rain in the UK
There are mild conditions in the UK as warm air advects northwards
There are dry conditions in Spain (Met Office, Vallis 2011)
What is the low phase of the NAO associated with - ANSWER The Azores high
is weak
The Icelandic low is shallow
The weakened pressure gradient causes the storm tracks to swing further south
leading to cooler weather in northern Europe as less heat advects Northwards and
more wild, wet waether in southern Europe
Clear and still in UK
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller StudySet. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R240,01. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now