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Y. Kanno, Takamichi Shoji, T. Iwasaki (2015)
Comparison study of the polar cold air mass between Northern and Southern Hemispheric winters based on a zonal‐mean two‐box modelAtmospheric Science Letters, 16
A. Kuwano‐Yoshida (2014)
Using the Local Deepening Rate to Indicate Extratropical Cyclone ActivitySola, 10
A. Yamazaki, M. Honda, A. Kuwano‐Yoshida (2015)
Heavy Snowfall in Kanto and on the Pacific Ocean Side of Northern Japan Associated with Western Pacific BlockingSola, 11
I. Belkin, A. Gordon (1996)
Southern Ocean fronts from the Greenwich Meridian to TasmaniaJournal of Geophysical Research, 101
Y. Kanno, M. Abdillah, T. Iwasaki (2015)
Charge and discharge of polar cold air mass in northern hemispheric winterGeophysical Research Letters, 42
R. Wood (2012)
Stratocumulus clouds, 140
C. Naud, J. Booth, A. Genio (2014)
Evaluation of ERA-Interim and MERRA Cloudiness in the Southern OceanJournal of Climate, 27
M. Abdillah, Y. Kanno, T. Iwasaki (2017)
Tropical–extratropical interactions associated with East Asian cold air outbreaks. Part I: Interannual variability, 30
S. Burk, W. Thompson (1996)
The summertime low-level jet and marine boundary layer structure along the California coastMonthly Weather Review, 124
S. Klein, D. Hartmann (1993)
The Seasonal Cycle of Low Stratiform CloudsJournal of Climate, 6
Takamichi Shoji, Y. Kanno, T. Iwasaki, K. Takaya (2014)
An Isentropic Analysis of the Temporal Evolution of East Asian Cold Air OutbreaksJournal of Climate, 27
M. Abdillah, Y. Kanno, T. Iwasaki (2015)
Tropical-Extratropical Interactions Associated with East Asian Cold Air Outbreaks, 2015
R. Wood, C. Bretherton (2006)
On the Relationship between Stratiform Low Cloud Cover and Lower-Tropospheric StabilityJournal of Climate, 19
R. Wood, C. Bretherton (2004)
Boundary Layer Depth, Entrainment, and Decoupling in the Cloud-Capped Subtropical and Tropical Marine Boundary LayerJournal of Climate, 17
Y. Kanno, J. Walsh, T. Iwasaki (2017)
Interannual Variability of the North American Cold Air Stream and Associated Synoptic CirculationsJournal of Climate, 30
Y. Kanno, M. Abdillah, T. Iwasaki (2016)
Long‐term trend of cold air mass amount below a designated potential temperature in Northern and Southern Hemispheric winters using reanalysis data setsJournal of Geophysical Research: Atmospheres, 121
F. Chavez, M. Messié (2009)
A comparison of Eastern Boundary Upwelling EcosystemsProgress in Oceanography, 83
T. Miyasaka, H. Nakamura (2010)
Structure and Mechanisms of the Southern Hemisphere Summertime Subtropical AnticyclonesJournal of Climate, 23
S. Uno, T. Iwasaki (2006)
A Cascade-Type Global Energy Conversion Diagram Based on Wave–Mean Flow InteractionsJournal of the Atmospheric Sciences, 63
S. Klein, D. Hartmann, J. Norris (1995)
On the Relationships among Low-Cloud Structure, Sea Surface Temperature, and Atmospheric Circulation in the Summertime Northeast PacificJournal of Climate, 8
A. Orsi, T. Whitworth, W. Nowlin (1995)
On the meridional extent and fronts of the Antarctic Circumpolar Current, 42
D. Dee, S. Uppala, A. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. Beljaars, L. Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. Geer, L. Haimberger, S. Healy, H. Hersbach, E. Holm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. Mcnally, B. Monge-Sanz, J. Morcrette, B. Park, C. Peubey, P. Rosnay, Christina Tavolato, J. Thepaut, F. Vitart (2011)
The ERA‐Interim reanalysis: configuration and performance of the data assimilation systemQuarterly Journal of the Royal Meteorological Society, 137
A. Bakun (1990)
Global Climate Change and Intensification of Coastal Ocean UpwellingScience, 247
L. Papritz, T. Spengler (2015)
Analysis of the slope of isentropic surfaces and its tendencies over the North AtlanticQuarterly Journal of the Royal Meteorological Society, 141
L. Papritz, S. Pfahl (2016)
Importance of Latent Heating in Mesocyclones for the Decay of Cold Air Outbreaks: A Numerical Process Study from the Pacific Sector of the Southern OceanMonthly Weather Review, 144
C. Domingues, M. Maltrud, S. Wijffels, J. Church, M. Tomczak (2007)
Simulated Lagrangian pathways between the Leeuwin Current System and the upper-ocean circulation of the southeast Indian OceanDeep-sea Research Part Ii-topical Studies in Oceanography, 54
T. Iwasaki, Takamichi Shoji, Y. Kanno, M. Sawada, Masashi Ujiie, K. Takaya (2014)
Isentropic Analysis of Polar Cold Airmass Streams in the Northern Hemispheric WinterJournal of the Atmospheric Sciences, 71
T. Miyasaka, H. Nakamura (2005)
Structure and Formation Mechanisms of the Northern Hemisphere Summertime Subtropical HighsJournal of Climate, 18
J. Norris, Y. Zhang, J. Wallace (1998)
Role of Low Clouds in Summertime Atmosphere–Ocean Interactions over the North PacificJournal of Climate, 11
K. Ninomiya, H. Mizuno (1985)
Anomalous Cold Spell in Summer over Northeastern Japan Caused by Northeasterly Wind from Polar Maritime Airmass: Part 1. EOF analysis of temperature variation in relation to the large-scale situation causing the cold summer@@@Part.1日本の夏季気温変動の主成分分析と東北冷夏に関連する大規模場Journal of the Meteorological Society of Japan, 63
AbstractThe climatology of low-level cool air over the midlatitude oceans in summer is presented based on an isentropic analysis. This study focuses on isentropic surfaces of 296 K to analyze an adiabatic invariant referred to as the negative heat content representing the coldness of the air layer below the threshold isentropic surface. This approach allows a systematic analysis and a quantitative comparison of the cool air distribution and a diagnosis of diabatic heating of the air mass. The cool air covers most of the subarctic oceans and extends equatorward over the coastal upwelling regions in the east of the ocean basins. In these regions, the genesis of the cool air is diagnosed. The loss of the cool air occurs over land and the subtropical oceans, particularly on the offshore side of the coastal upwelling regions. In the Pacific sector and the Indian Ocean sector of the Southern Ocean, another large loss of the cool air occurs along the oceanic frontal zone including the Agulhas Return Current. Over the zonally extended region where the cool air is generated in the Southern Hemisphere and the coastal upwelling regions, it is suggested that diabatic cooling associated with low-level clouds overcome heating by turbulent surface heat fluxes. The genesis of the cool air over the subarctic oceans in the Northern Hemisphere in the warm season switches into the loss of the cold air in the cool season on a basin scale. Meanwhile, over the oceans in the Southern Hemisphere, there is no basin-scale seasonal switch.
Journal of Climate – American Meteorological Society
Published: Mar 21, 2018
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