Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns
Teleconnection patterns wield a strong influence on regional climate variability. Several studies have linked North American hydroclimatology with the teleconnection strength and phase. The purpose of this study is to understand the spatiotemporal relationship between three large-scale modes of atmo...
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ftballstcs:oai:cardinalscholar.bsu.edu:20.500.14291/198496 2023-07-30T04:05:15+02:00 Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns Title on signature form: Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation Stefl, David J. Coleman, Jill S. 2014-07-19 application/pdf http://cardinalscholar.bsu.edu/handle/20.500.14291/198496 https://hdl.handle.net/20.500.14291/198496 http://liblink.bsu.edu/catkey/1773208 unknown http://liblink.bsu.edu/catkey/1773208 http://cardinalscholar.bsu.edu/handle/20.500.14291/198496 Snow -- Northeastern States -- History -- 20th century Snow -- Northeastern States -- History -- 21st century North Atlantic oscillation Southern oscillation Teleconnections (Climatology) 2014 ftballstcs https://doi.org/20.500.14291/198496 2023-07-17T22:37:33Z Teleconnection patterns wield a strong influence on regional climate variability. Several studies have linked North American hydroclimatology with the teleconnection strength and phase. The purpose of this study is to understand the spatiotemporal relationship between three large-scale modes of atmospheric variability and snowfall distributions in the eastern United States. In particular, snowfall responses were examined on a sub-regional level to the Pacific-North American (PNA), North Atlantic Oscillation (NAO), and El Niño/Southern Oscillation (ENSO) patterns at different periods through the winter season using a similar methodology found in Smith and O’Brien (2001). Snowfall data were collected from the United States Historical Climatology Network (USHCN) for the years 1951-2012. In order to examine snowfall within season variability, each snowfall season was grouped into three, three-month overlapping periods: early, October, November, and December (OND); middle, December, January, and February (DJF); and late, February, March, and April (FMA). Average monthly teleconnection pattern index values for PNA, NAO, and ENSO were collected from the Climate Prediction Center (CPC) and National Climatic Data Center (NCDC) and averaged into corresponding periods. For each station, boxplots were created showing the winter snowfall range as well as the first, second (median), and third quartiles. An observational analysis was performed in which the station boxplots were then grouped according to one of three general median snowfall teleconnection pattern responses (e.g., high median snowfall in NAO negative phase). A non-parametric two sample t-test was employed to determine if the shifts in median snowfall between teleconnection pattern phases are statistically significant. The results of the statistical analysis revealed that although there were observable shifts in snowfall in relation to teleconnection pattern phase, the observed shift was not significant in an appreciable amount of stations. Thesis (M.S.) ... Other/Unknown Material North Atlantic North Atlantic oscillation Ball State University: Cardinal Scholar Pacific |
institution |
Open Polar |
collection |
Ball State University: Cardinal Scholar |
op_collection_id |
ftballstcs |
language |
unknown |
topic |
Snow -- Northeastern States -- History -- 20th century Snow -- Northeastern States -- History -- 21st century North Atlantic oscillation Southern oscillation Teleconnections (Climatology) |
spellingShingle |
Snow -- Northeastern States -- History -- 20th century Snow -- Northeastern States -- History -- 21st century North Atlantic oscillation Southern oscillation Teleconnections (Climatology) Stefl, David J. Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
topic_facet |
Snow -- Northeastern States -- History -- 20th century Snow -- Northeastern States -- History -- 21st century North Atlantic oscillation Southern oscillation Teleconnections (Climatology) |
description |
Teleconnection patterns wield a strong influence on regional climate variability. Several studies have linked North American hydroclimatology with the teleconnection strength and phase. The purpose of this study is to understand the spatiotemporal relationship between three large-scale modes of atmospheric variability and snowfall distributions in the eastern United States. In particular, snowfall responses were examined on a sub-regional level to the Pacific-North American (PNA), North Atlantic Oscillation (NAO), and El Niño/Southern Oscillation (ENSO) patterns at different periods through the winter season using a similar methodology found in Smith and O’Brien (2001). Snowfall data were collected from the United States Historical Climatology Network (USHCN) for the years 1951-2012. In order to examine snowfall within season variability, each snowfall season was grouped into three, three-month overlapping periods: early, October, November, and December (OND); middle, December, January, and February (DJF); and late, February, March, and April (FMA). Average monthly teleconnection pattern index values for PNA, NAO, and ENSO were collected from the Climate Prediction Center (CPC) and National Climatic Data Center (NCDC) and averaged into corresponding periods. For each station, boxplots were created showing the winter snowfall range as well as the first, second (median), and third quartiles. An observational analysis was performed in which the station boxplots were then grouped according to one of three general median snowfall teleconnection pattern responses (e.g., high median snowfall in NAO negative phase). A non-parametric two sample t-test was employed to determine if the shifts in median snowfall between teleconnection pattern phases are statistically significant. The results of the statistical analysis revealed that although there were observable shifts in snowfall in relation to teleconnection pattern phase, the observed shift was not significant in an appreciable amount of stations. Thesis (M.S.) ... |
author2 |
Coleman, Jill S. |
author |
Stefl, David J. |
author_facet |
Stefl, David J. |
author_sort |
Stefl, David J. |
title |
Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
title_short |
Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
title_full |
Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
title_fullStr |
Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
title_full_unstemmed |
Snowfall variability in the eastern United States associated with the North Atlantic oscillation, Pacific-North American and El Niño/Southern oscillation teleconnection patterns |
title_sort |
snowfall variability in the eastern united states associated with the north atlantic oscillation, pacific-north american and el niño/southern oscillation teleconnection patterns |
publishDate |
2014 |
url |
http://cardinalscholar.bsu.edu/handle/20.500.14291/198496 https://hdl.handle.net/20.500.14291/198496 http://liblink.bsu.edu/catkey/1773208 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://liblink.bsu.edu/catkey/1773208 http://cardinalscholar.bsu.edu/handle/20.500.14291/198496 |
op_doi |
https://doi.org/20.500.14291/198496 |
_version_ |
1772817048065277952 |