Globala egenskaper i samband med NAO-indexet

The past 51 years northern Europe has experienced nine unusually cold winters, where many temperature records have been set. Two of the three last winters, 2009/10 and 2010/11, were the coldest in many places in southern Sweden since the mid 80’s. However, the coldest winter in southern Sweden was,...

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Main Authors: Alerskans, Emy, Lehtonen Ahumada, Andy
Format: Other/Unknown Material
Language:Swedish
Published: Lunds universitet/Fysiska institutionen 2012
Subjects:
NAO
Online Access:http://lup.lub.lu.se/student-papers/record/2860738
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spelling ftulundlupsp:oai:lup-student-papers.lub.lu.se:2860738 2023-07-30T04:05:40+02:00 Globala egenskaper i samband med NAO-indexet Alerskans, Emy Lehtonen Ahumada, Andy 2012 application/pdf http://lup.lub.lu.se/student-papers/record/2860738 swe swe Lunds universitet/Fysiska institutionen http://lup.lub.lu.se/student-papers/record/2860738 kalla vintrar meridionalvind yttryck vintern 1962/63 vintern 1969/70 vintern 1978/79 vintern 1984/85 vintern 1985/86 vintern 1986/87 vintern 1995/96 vintern 2001/02 vintern 2005/06 vintern 2009/10 vintern 2010/11 norra hemisfären Nordatlantiska Oscillationen NAO blockering North Atlantic Oscillation Physics and Astronomy M2 2012 ftulundlupsp 2023-07-11T20:06:45Z The past 51 years northern Europe has experienced nine unusually cold winters, where many temperature records have been set. Two of the three last winters, 2009/10 and 2010/11, were the coldest in many places in southern Sweden since the mid 80’s. However, the coldest winter in southern Sweden was, according to SMHI (Sveriges Meteorologiska och Hydrologiska Institut), the winter of 1962/63, when it on average was about 2˚C colder than the winter of 2009/10. For the winters of 2009/10 and 2010/11 the NAO-index was strongly negative during the major part of the cold period. This lead to studies of the index and during the winters of 2009/10 and 2010/11 a possible correlation between the NAO-index and the total surface pressure of the Northern hemisphere was found. Because of this, this report will be dedicated to studying if the other seven unusually cold winters in northern Europe show proof of a similar correlation. The analysis focuses, based on the NAO-index, the total surface pressure and the temperature as well as a number of other parameters, on determining if the correlation is a recurring phenomenon or not for the unusually cold winters in northern Europe. Based on the analysis, clear indications that a correlation between the NAO-index and the total surface pressure of the Northern hemisphere can be seen. De senaste 51 åren har norra Europa upplevt nio ovanligt kalla vintrar där många temperaturrekord har satts. Två av de tre senaste vintrarna, 2009/10 och 2010/11, var de kallaste på många håll i södra Sverige sedan mitten av 80-talet. Den allra kallaste vintern i södra Sverige var dock enligt SMHI (Sveriges Meteorologiska och Hydrologiska Institut) vintern 1962/63 då det i genomsnitt var cirka 2˚C kallare än vintern 2009/10. För både vintrarna 2009/10 och 2010/11 var NAO-indexet kraftigt negativt under största delen av den kalla perioden. Detta ledde till undersökningar av indexet och under vintrarna 2009/10 och 2010/11 upptäcktes en möjlig korrelation mellan NAO-indexet och det totala yttrycket på ... Other/Unknown Material North Atlantic North Atlantic oscillation Lund University Publications Student Papers (LUP-SP) Kalla ENVELOPE(19.617,19.617,67.050,67.050)
institution Open Polar
collection Lund University Publications Student Papers (LUP-SP)
op_collection_id ftulundlupsp
language Swedish
topic kalla vintrar
meridionalvind
yttryck
vintern 1962/63
vintern 1969/70
vintern 1978/79
vintern 1984/85
vintern 1985/86
vintern 1986/87
vintern 1995/96
vintern 2001/02
vintern 2005/06
vintern 2009/10
vintern 2010/11
norra hemisfären
Nordatlantiska Oscillationen
NAO
blockering
North Atlantic Oscillation
Physics and Astronomy
spellingShingle kalla vintrar
meridionalvind
yttryck
vintern 1962/63
vintern 1969/70
vintern 1978/79
vintern 1984/85
vintern 1985/86
vintern 1986/87
vintern 1995/96
vintern 2001/02
vintern 2005/06
vintern 2009/10
vintern 2010/11
norra hemisfären
Nordatlantiska Oscillationen
NAO
blockering
North Atlantic Oscillation
Physics and Astronomy
Alerskans, Emy
Lehtonen Ahumada, Andy
Globala egenskaper i samband med NAO-indexet
topic_facet kalla vintrar
meridionalvind
yttryck
vintern 1962/63
vintern 1969/70
vintern 1978/79
vintern 1984/85
vintern 1985/86
vintern 1986/87
vintern 1995/96
vintern 2001/02
vintern 2005/06
vintern 2009/10
vintern 2010/11
norra hemisfären
Nordatlantiska Oscillationen
NAO
blockering
North Atlantic Oscillation
Physics and Astronomy
description The past 51 years northern Europe has experienced nine unusually cold winters, where many temperature records have been set. Two of the three last winters, 2009/10 and 2010/11, were the coldest in many places in southern Sweden since the mid 80’s. However, the coldest winter in southern Sweden was, according to SMHI (Sveriges Meteorologiska och Hydrologiska Institut), the winter of 1962/63, when it on average was about 2˚C colder than the winter of 2009/10. For the winters of 2009/10 and 2010/11 the NAO-index was strongly negative during the major part of the cold period. This lead to studies of the index and during the winters of 2009/10 and 2010/11 a possible correlation between the NAO-index and the total surface pressure of the Northern hemisphere was found. Because of this, this report will be dedicated to studying if the other seven unusually cold winters in northern Europe show proof of a similar correlation. The analysis focuses, based on the NAO-index, the total surface pressure and the temperature as well as a number of other parameters, on determining if the correlation is a recurring phenomenon or not for the unusually cold winters in northern Europe. Based on the analysis, clear indications that a correlation between the NAO-index and the total surface pressure of the Northern hemisphere can be seen. De senaste 51 åren har norra Europa upplevt nio ovanligt kalla vintrar där många temperaturrekord har satts. Två av de tre senaste vintrarna, 2009/10 och 2010/11, var de kallaste på många håll i södra Sverige sedan mitten av 80-talet. Den allra kallaste vintern i södra Sverige var dock enligt SMHI (Sveriges Meteorologiska och Hydrologiska Institut) vintern 1962/63 då det i genomsnitt var cirka 2˚C kallare än vintern 2009/10. För både vintrarna 2009/10 och 2010/11 var NAO-indexet kraftigt negativt under största delen av den kalla perioden. Detta ledde till undersökningar av indexet och under vintrarna 2009/10 och 2010/11 upptäcktes en möjlig korrelation mellan NAO-indexet och det totala yttrycket på ...
format Other/Unknown Material
author Alerskans, Emy
Lehtonen Ahumada, Andy
author_facet Alerskans, Emy
Lehtonen Ahumada, Andy
author_sort Alerskans, Emy
title Globala egenskaper i samband med NAO-indexet
title_short Globala egenskaper i samband med NAO-indexet
title_full Globala egenskaper i samband med NAO-indexet
title_fullStr Globala egenskaper i samband med NAO-indexet
title_full_unstemmed Globala egenskaper i samband med NAO-indexet
title_sort globala egenskaper i samband med nao-indexet
publisher Lunds universitet/Fysiska institutionen
publishDate 2012
url http://lup.lub.lu.se/student-papers/record/2860738
long_lat ENVELOPE(19.617,19.617,67.050,67.050)
geographic Kalla
geographic_facet Kalla
genre North Atlantic
North Atlantic oscillation
genre_facet North Atlantic
North Atlantic oscillation
op_relation http://lup.lub.lu.se/student-papers/record/2860738
_version_ 1772817750378414080