Atmospheric teleconnection patterns and severity of winters in the Laurentian Great Lakes basin

Rodionov, Sergei; Assel, Raymond A.

doi:10.1080/07055900.2000.9649661

Cited by 39 publications

(34 citation statements)

References 43 publications

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“…Resale or republication not permitted without written consent of the publisher events in the equatorial Pacific (Assel 1998, Assel & Rodionov 1998, Rodionov & Assel 2000. For example, Assel (1998) has demonstrated that the mean value of the WSI was 1.2°C higher (statistically significant at the 5% level) for the 6 strongest El Niño winters between 1950 and 1994 than its mean value for the other winters in that base period.…”

Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

“…Assel & Rodionov (1998) have found that 46% of the lowest quartile of the observed annual maximum ice covers for the period 1963−1990 occurred during the mature phase of El Niño. The 1983 and 1998 El Niño events both had far-below-average ice cover in the lakes (Assel et al 2000). Using the multivariate ENSO index (MEI) (Wolter & Timlin 1993), Rodionov & Assel (2000) have shown that of 10 winters with strong ENSO events (MEI > 0.8) during the 1950−1998 period, 7 winters in the Great Lakes were warm, 3 were normal, and none were cold.…”

Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

“…The 1983 and 1998 El Niño events both had far-below-average ice cover in the lakes (Assel et al 2000). Using the multivariate ENSO index (MEI) (Wolter & Timlin 1993), Rodionov & Assel (2000) have shown that of 10 winters with strong ENSO events (MEI > 0.8) during the 1950−1998 period, 7 winters in the Great Lakes were warm, 3 were normal, and none were cold.…”

Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

“…Their waters are also used by various manufacturing industries, as municipal water sources and for hydropower generation in their connecting channels (St. Marys River, Niagara River, St. Lawrence River). The severity of winters impacts the regional economy by affecting ice formation on the lakes, waterborne commerce, winter recreational activities, municipal snow removal costs, winter heating costs, and the lake ecosystem (Assel et al 1996, Assel et al 2000. Thus, winter severity, its variation, and factors that influence it are of interest to a large spectrum of people in the private and public sectors of both the US and Canada.…”

Section: Introductionmentioning

confidence: 99%

“…Marie, MI, Detroit, MI, and Buffalo, NY, averaged over November through February, was used in previous studies to identify extremes in winter severity over the past 2 centuries, to model annual maximum ice extent (Assel et al 1996), and to identify associated atmospheric teleconnections (Rodionov & Assel 2000). The severity of winters in the Great Lakes region varies greatly from year to year and from decade to decade (Fig.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Winter severity in the Great Lakes region: a tale of two oscillations

Rodionov¹,

Assel

2003

Clim. Res.

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Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

Section: Abstract: Great Lakes · Pacific Decadal Oscillation · El Nimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Winter severity in the Great Lakes region: a tale of two oscillations

Rodionov¹,

Assel

2003

Clim. Res.

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Recent climatological trends and potential influences on forest phenology around western Lake Superior, USA

Garcia

Townsend

2016

JGR Atmospheres

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We assess long‐term climatological means, trends, and interannual variability around the western end of Lake Superior during 1984–2013 by using available weather station data. Our results focus on changes in basic and derived climate indicators from seasonal and annual temperature and precipitation, to the traditionally defined frost‐free season, to a novel definition of the climatological growing season. We describe seasonal and year‐to‐year climate variability that influences forest phenology, using an alternative growing season metric that is based on the warm‐season plateau in accumulated chilling days as an indicator of environmental triggers for vegetation growth and senescence. Our results indicate +0.56°C regional warming during our 30 year study period, with cooler springs (−1.26°C) and significant autumn warming (+1.54°C). The duration of the climatological growing season has increased +0.27 d/yr, extending primarily into autumn. Summer precipitation in our study area has declined by an average −0.34 cm/yr, potentially leading to moisture stress that impairs vegetation carbon uptake rates and can render the forest more vulnerable to disturbance. Many changes in temperature, precipitation, and climatological growing season are most prominent in locations where Lake Superior exerts a strong hydroclimatological influence, especially the Minnesota shoreline and in forest areas downwind (southeast) of the lake. Observed trends in lake temperature and ice phenology have also changed, coincident with a large‐scale climatological regime shift around 1998. A number of factors are likely altering forest phenology and the role of the forest in the climate system of this ecologically important and highly varied forest‐and‐lake region.

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The spatiotemporal variations of winter severity over North America

Liu

Feng

Huang

2020

Intl Journal of Climatology

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Winter severity affects many aspects of life, including traffic, public health, and the behaviour of animals and plants. The newly developed accumulated winter season severity index (AWSSI) is used in this study to examine the changes of winter severity across North America (NA) during recent decades. The results indicated that the winter severity experienced a notable interdecadal transition in 1965, characterized by increasing AWSSI before 1965, and decreasing AWSSI after 1965. This study also investigates the relationship between the winter severity and the atmospheric circulations over NA. The variations of winter severity are mainly controlled by temperature, while the large‐scale forcings (i.e., ENSO, PDO, and NAO) also play an important role. In particular, PDO is mainly associated with the opposite variation of winter severity between the Southeastern United States and Northwestern NA, while the NAO leads to the opposite variation of winter severity between the Eastern United States and Eastern Canada. Under the influence of ENSO, the variations of winter severity over Southern and Interior Alaska, the Pacific Northwest, and the Northern Great Plains are opposed to that over the Southern United States and Northern Canada.

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Atmospheric teleconnection patterns and severity of winters in the Laurentian Great Lakes basin

Cited by 39 publications

References 43 publications

Winter severity in the Great Lakes region: a tale of two oscillations

Winter severity in the Great Lakes region: a tale of two oscillations

Recent climatological trends and potential influences on forest phenology around western Lake Superior, USA

The spatiotemporal variations of winter severity over North America

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