The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September

The satellite record analysis for monthly differences of Arctic sea ice extent (SIE) shows that the most significant accelerated monthly sea ice reduction occurred between June and July although, on average, the largest sea ice reduction occurred between July and August. The monthly difference of Ju...

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Main Authors: Zhenhao Bao, Gordon Huang, Jinliang Liu, Hengchun Ye
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Advances in Meteorology
Online Access:http://dx.doi.org/10.1155/2015/352380
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author Zhenhao Bao
Gordon Huang
Jinliang Liu
Hengchun Ye
author_facet Zhenhao Bao
Gordon Huang
Jinliang Liu
Hengchun Ye
author_sort Zhenhao Bao
collection DOAJ
description The satellite record analysis for monthly differences of Arctic sea ice extent (SIE) shows that the most significant accelerated monthly sea ice reduction occurred between June and July although, on average, the largest sea ice reduction occurred between July and August. The monthly difference of June minus July (JJ) SIE has the strongest correlation with September SIE, with a correlation coefficient of −0.786 (original time series) and −0.625 (detrended time series) at confidence level of 99%. Furthermore, it is found that the correlation coefficient between JJ SIE and July minus August (JA) SIE is so low (0.068) that they can be thought to be independent from each other, considering that the JA SIE is also significantly negatively correlated to September SIE. A simple regression forecasting model for September SIE was established using monthly SIE differences for the JJ and JA. This study also shows that the JJ SIE is significantly correlated not only with sea level pressure (SLP) in polar regions and midlatitudes over eastern Atlantic in July, a pattern which resembles the negative phase of North Atlantic Oscillation (NAO), but also with sea surface temperature (SST) in midlatitudes over central North Pacific in the preceding spring.
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spelling doaj-art-ca78a3d876f84527adade31c0f3a2a5c2025-08-20T03:24:04ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/352380352380The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in SeptemberZhenhao Bao0Gordon Huang1Jinliang Liu2Hengchun Ye3Institute for Energy, Institute for Energy, Environment and Sustainable Communalities, University of Regina, Regina, SK, S4S 0A2, CanadaInstitute for Energy, Institute for Energy, Environment and Sustainable Communalities, University of Regina, Regina, SK, S4S 0A2, CanadaDepartment of Earth and Space Science and Engineering, York University, Toronto, ON, M3J 1P3, CanadaDepartment of Geosciences and Environment, California State University, Los Angeles, CA 90032, USAThe satellite record analysis for monthly differences of Arctic sea ice extent (SIE) shows that the most significant accelerated monthly sea ice reduction occurred between June and July although, on average, the largest sea ice reduction occurred between July and August. The monthly difference of June minus July (JJ) SIE has the strongest correlation with September SIE, with a correlation coefficient of −0.786 (original time series) and −0.625 (detrended time series) at confidence level of 99%. Furthermore, it is found that the correlation coefficient between JJ SIE and July minus August (JA) SIE is so low (0.068) that they can be thought to be independent from each other, considering that the JA SIE is also significantly negatively correlated to September SIE. A simple regression forecasting model for September SIE was established using monthly SIE differences for the JJ and JA. This study also shows that the JJ SIE is significantly correlated not only with sea level pressure (SLP) in polar regions and midlatitudes over eastern Atlantic in July, a pattern which resembles the negative phase of North Atlantic Oscillation (NAO), but also with sea surface temperature (SST) in midlatitudes over central North Pacific in the preceding spring.http://dx.doi.org/10.1155/2015/352380
spellingShingle Zhenhao Bao
Gordon Huang
Jinliang Liu
Hengchun Ye
The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
Advances in Meteorology
title The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
title_full The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
title_fullStr The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
title_full_unstemmed The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
title_short The Variability of Arctic Sea Ice Extent from Spring to Summer and Its Linkage to the Decline of SIE in September
title_sort variability of arctic sea ice extent from spring to summer and its linkage to the decline of sie in september
url http://dx.doi.org/10.1155/2015/352380
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