지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The “Barents Oscillation (BO)”, first designated by Paul Skeie (2000), is an anomalous recurring atmospheric circulation pattern of high relevance for the climate of the Nordic Seas and Siberia, which is defined as the second Emperical Orthogonal Function (EOF) of monthly winter sea level pressure (SLP) anomalies, where the leading EOF is the Arctic Oscillation (AO). BO, however, did not attracted much interest. In recent two decades, variability of BO tends to increase. In this study, we analyzed the spatio-temporal structures of Atmospheric internal modes such as Arctic Oscillation (AO) and Barents Oscillation (BO) and examined how these are related with Arctic warming in recent decade. We identified various aspects of BO, not dealt in Skeie (2000), such as upper-level circulation and surface characteristics for extended period including recent decade and examined link with other surface variables such as sea-ice and sea surface temperature. From the results, it was shown that the BO showed more regionally confined spatial pattern compared to AO and has intensified during recent decade. The regional dipolelar structure centered at Barents sea and Siberia was revealed in both sea-level pressure and 500 hPa geopotential height. Also, BO showed a stronger link (correlation) with sea-ice and sea surface temperature especially over Barents-Kara seas suggesting it is playing an important role for recent Arctic amplification. BO also showed high correlation with Ural Blocking Index (UBI), which measures seasonal activity of Ural blocking. Since Ural blocking is known as a major component of Eurasian winter monsoon and can be linked to extreme weathers, we suggest deeper understanding of BO can provide a missing link between recent Arctic amplification and increase in extreme weathers in midlatitude in recent decades.
목차
Abstract
1. 서론
2. 자료 및 방법
3. 북극권 온난화 경향 분석
4. 북극권 기후변동 모드 분석
5. 북극권 기후변동 모드와 주요 변수들과의 관계
6. 결론 및 토의
REFERNCES
참고문헌 (47)
참고문헌 신청
1. [학술지(정기간행물)] - Bhatt, U. S. / 2010 / Circumpolar Arctic tundra vegetation change is linked to sea ice decline / Earth Interactions 14 : 1 ~ 20
2. [학술지(정기간행물)] - Budikova, D. / 2009 / Role of Arctic sea ice in global atmospheric circulation: A review / Global and Planet. Change 68 : 149 ~ 163
3. [학술지(정기간행물)] - Cohen, J. / 2005 / The NAO, the AO, and global warming: How closely related? / Climate, 18 18 : 4498 ~ 4513
4. [학술지(정기간행물)] - Cohen, J. / 2009 / Decadal fluctuations in planetary wave forcing modulate global warming in late boreal winter / J. Climate 22 : 4418 ~ 4426
5. [학술지(정기간행물)] - Cohen, J. / 2010 / Winter 2009~2010: A case study of an extreme Arctic Oscillation event / Geophys. Res. Lett. 37
2. [학술지(정기간행물)] - Budikova, D. / 2009 / Role of Arctic sea ice in global atmospheric circulation: A review / Global and Planet. Change 68 : 149 ~ 163
3. [학술지(정기간행물)] - Cohen, J. / 2005 / The NAO, the AO, and global warming: How closely related? / Climate, 18 18 : 4498 ~ 4513
4. [학술지(정기간행물)] - Cohen, J. / 2009 / Decadal fluctuations in planetary wave forcing modulate global warming in late boreal winter / J. Climate 22 : 4418 ~ 4426
5. [학술지(정기간행물)] - Cohen, J. / 2010 / Winter 2009~2010: A case study of an extreme Arctic Oscillation event / Geophys. Res. Lett. 37
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UCI(KEPA) : I410-ECN-0101-2015-450-001651755