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The relationship between the Madden-Julian Oscillation (MJO) and southeastern New England snowfall

Citation

Klotzbach, PJ and Oliver, ECJ and Leeper, RD and Schreck III, CJ, The relationship between the Madden-Julian Oscillation (MJO) and southeastern New England snowfall, Monthly Weather Review, 144, (April) pp. 1355-1362. ISSN 0027-0644 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 American Meteorological Society

DOI: doi:10.1175/MWR-D-15-0434.1

Abstract

The winter of 2014/15 brought record snow totals to portions of southeastern New England. Additionally, over 90% of Boston Logan Airport snowfall during the winter fell during phases 7 and 8 of the Madden–Julian oscillation (MJO) index. This motivated the authors to investigate potential connections between intense southeastern New England snowstorms and the MJO in the historical record. It was found that southeastern New England snowfall, measured since the 1930s at several stations in the region, recorded higher than average winter snowfalls when enhanced MJO convection was located over the western Pacific and the Western Hemisphere (phases 7-8). Similarly, snowfall was suppressed when enhanced MJO convection was located over the Maritime Continent (phases 4-5). The MJO also modulates the frequency of nor’easters, which contribute the majority of New England’s snowfall, as measured by reanalysis-derived cyclone tracks. These tracks were more numerous during the same MJO phases that lead to enhanced snowfall, and they were less common during phases with less snowfall.

Item Details

Item Type:Refereed Article
Keywords:atmosphere/ocean structure/phenomena, extratropical cyclones, Madden-Julian oscillation, snow, snowfall
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical Oceanography
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Climate Variability (excl. Social Impacts)
Author:Oliver, ECJ (Dr Eric Oliver)
ID Code:107957
Year Published:2016
Deposited By:Centre for Oceans and Cryosphere
Deposited On:2016-04-01
Last Modified:2017-11-17
Downloads:0

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