Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA)
ABSTRACT The relationships between the synoptic climatology, large‐scale teleconnections and the regional avalanche activity index ( RAAI ) inferred from tree‐rings were evaluated for the Presidential Range in the White Mountains (New Hampshire, USA ). During the period 1936–2012, 18 years of region...
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crwiley:10.1002/joc.4985 2024-06-23T07:55:15+00:00 Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) Martin, Jean‐Philippe Germain, Daniel Fonds de Recherche du Québec - Nature et Technologies 2017 http://dx.doi.org/10.1002/joc.4985 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.4985 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.4985 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 37, issue S1, page 109-123 ISSN 0899-8418 1097-0088 journal-article 2017 crwiley https://doi.org/10.1002/joc.4985 2024-06-04T06:36:29Z ABSTRACT The relationships between the synoptic climatology, large‐scale teleconnections and the regional avalanche activity index ( RAAI ) inferred from tree‐rings were evaluated for the Presidential Range in the White Mountains (New Hampshire, USA ). During the period 1936–2012, 18 years of regional avalanche activity were compared with the winter‐scale prevailing joint temperature/climatic modes (cold/wet ( CW ), cold/dry ( CD ), warm/wet ( WW ) and warm/dry ( WW )), the North Atlantic Oscillation ( NAO ), the El Niño‐Southern Oscillation ( ENSO ), the 500‐mbar composite anomaly maps and the ratio of snow from different storm tracks. The total winter snowfall and the NAO negatively correlate with the RAAI . There is also a significant difference in avalanche activity between winters with a NAO under or above −3. Winters of regional avalanche activity were present in the four climatic modes, albeit the ratio of avalanche/non‐avalanche years is superior for CW winters compared to the three other modes, as well as for wet winters compared to dry winters. CW , CD and WW winters exhibit a negative NAO anomaly, which is eastbound for the wet years. Cold winters ( CW , CD ) receive more snow from the Great Lakes, whereas coastal depressions are more important during wet winters ( CW , WW ). The NAO is an adequate predictor of snowfall, but does not provide information about the storm tracks. On the contrary, the ENSO is poorly correlated with snowfall, but its relationship is significant with the ratio of snow produced by coastal depressions (positive relationship) and Great Lakes storms (negative relationship). These are the first results quantifying the atmospheric circulation – synoptic meteorology – snow avalanche relationships in Northeastern North America. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library International Journal of Climatology 37 S1 109 123 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT The relationships between the synoptic climatology, large‐scale teleconnections and the regional avalanche activity index ( RAAI ) inferred from tree‐rings were evaluated for the Presidential Range in the White Mountains (New Hampshire, USA ). During the period 1936–2012, 18 years of regional avalanche activity were compared with the winter‐scale prevailing joint temperature/climatic modes (cold/wet ( CW ), cold/dry ( CD ), warm/wet ( WW ) and warm/dry ( WW )), the North Atlantic Oscillation ( NAO ), the El Niño‐Southern Oscillation ( ENSO ), the 500‐mbar composite anomaly maps and the ratio of snow from different storm tracks. The total winter snowfall and the NAO negatively correlate with the RAAI . There is also a significant difference in avalanche activity between winters with a NAO under or above −3. Winters of regional avalanche activity were present in the four climatic modes, albeit the ratio of avalanche/non‐avalanche years is superior for CW winters compared to the three other modes, as well as for wet winters compared to dry winters. CW , CD and WW winters exhibit a negative NAO anomaly, which is eastbound for the wet years. Cold winters ( CW , CD ) receive more snow from the Great Lakes, whereas coastal depressions are more important during wet winters ( CW , WW ). The NAO is an adequate predictor of snowfall, but does not provide information about the storm tracks. On the contrary, the ENSO is poorly correlated with snowfall, but its relationship is significant with the ratio of snow produced by coastal depressions (positive relationship) and Great Lakes storms (negative relationship). These are the first results quantifying the atmospheric circulation – synoptic meteorology – snow avalanche relationships in Northeastern North America. |
author2 |
Fonds de Recherche du Québec - Nature et Technologies |
format |
Article in Journal/Newspaper |
author |
Martin, Jean‐Philippe Germain, Daniel |
spellingShingle |
Martin, Jean‐Philippe Germain, Daniel Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
author_facet |
Martin, Jean‐Philippe Germain, Daniel |
author_sort |
Martin, Jean‐Philippe |
title |
Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
title_short |
Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
title_full |
Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
title_fullStr |
Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
title_full_unstemmed |
Large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the Presidential Range (New Hampshire, USA) |
title_sort |
large‐scale teleconnection patterns and synoptic climatology of major snow‐avalanche winters in the presidential range (new hampshire, usa) |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/joc.4985 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.4985 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.4985 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology volume 37, issue S1, page 109-123 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.4985 |
container_title |
International Journal of Climatology |
container_volume |
37 |
container_issue |
S1 |
container_start_page |
109 |
op_container_end_page |
123 |
_version_ |
1802647763182157824 |