https://repository.kopri.re.kr/handle/201206/5197 2026-04-22T21:04:07Z 2026-04-22T21:04:07Z Kim, Baek-Min https://repository.kopri.re.kr/handle/201206/8847 2022-03-24T07:13:12Z 2015-12-15T00:00:00Z

Title: Development of Seasonal Forecast System based on Physical Variables in the Cryosphere Authors: Kim, Baek-Min

2015-12-15T00:00:00Z Kim, Baek-Min Kim, Hyun-Kyung Lim, Gyu-Ho Jung, Euihyun https://repository.kopri.re.kr/handle/201206/6472 2022-03-24T07:12:25Z 2014-01-01T00:00:00Z

Title: Analysis on Winter Atmospheric Variability Related to Arctic Warming Authors: Kim, Baek-Min; Kim, Hyun-Kyung; Lim, Gyu-Ho; Jung, Euihyun Abstract: The "Barents Oscillation (BO)", first designated by Paul Skeie (2000), is an anom- alous 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 Oscil- lation (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 (cor- relation) with sea-ice and sea surface temperature especially over Barents-Kara seas suggest- ing 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 block- ing. 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.

2014-01-01T00:00:00Z Sung, Mi-Kyung Woo, Sung-Ho An, Soon-Il Kim, Baek-Min https://repository.kopri.re.kr/handle/201206/6094 2022-03-24T07:11:31Z 2014-01-01T00:00:00Z

Title: A physical mechanism of the precipitation dipole in the western United States based on PDO-storm track relationship Authors: Sung, Mi-Kyung; Woo, Sung-Ho; An, Soon-Il; Kim, Baek-Min Abstract: It is known that the western United States (US) precipitation displays a north-south contrast, i.e., the so-called "precipitation dipole," during El Nin？o and La Nin？a winters. Furthermore, the Pacific Decadal Oscillation (PDO) has been known to modulate this precipitation dipole. However, the underlying physical mechanism regulating this modulation is not well understood. This study revisits previous studies and suggests a physical mechanism of precipitation dipole modulation based on the PDO-storm track relationship.

2014-01-01T00:00:00Z Kim, Baek-Min Sang-Yoon Jun Jee-Hoon Jeong Ho, Chang-Hoi https://repository.kopri.re.kr/handle/201206/6155 2022-03-24T07:11:53Z 2014-01-01T00:00:00Z

Title: Sensitivity of Arctic warming to sea surface temperature distribution over melted sea-ice region in atmospheric general circulation model experiments Authors: Kim, Baek-Min; Sang-Yoon Jun; Jee-Hoon Jeong; Ho, Chang-Hoi

2014-01-01T00:00:00Z