{"title":"Multiyear La Niña Impact on Summer Temperature over Japan","authors":"Tomoki Iwakiri, M. Watanabe","doi":"10.2151/jmsj.2020-064","DOIUrl":"https://doi.org/10.2151/jmsj.2020-064","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1245-1260"},"PeriodicalIF":3.1,"publicationDate":"2020-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45970228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xingyang Zhou, Liguang Wu, Qingyuan Liu, Yan Zheng
{"title":"Influence of Low-Level, High-Entropy Air in the Eye on Tropical Cyclone Intensity: A Trajectory Analysis","authors":"Xingyang Zhou, Liguang Wu, Qingyuan Liu, Yan Zheng","doi":"10.2151/jmsj.2020-063","DOIUrl":"https://doi.org/10.2151/jmsj.2020-063","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1231-1243"},"PeriodicalIF":3.1,"publicationDate":"2020-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43302357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Slowdown of Typhoon Translation Speeds in Mid-latitudes in September Influenced by the Pacific Decadal Oscillation and Global Warming","authors":"M. Yamaguchi, S. Maeda","doi":"10.2151/jmsj.2020-068","DOIUrl":"https://doi.org/10.2151/jmsj.2020-068","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1321-1334"},"PeriodicalIF":3.1,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46409963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of Ku- and Ka-band Dual-frequency Radar for Snow Retrieval","authors":"L. Liao, R. Meneghini, A. Tokay, Hyo-Kyung Kim","doi":"10.2151/jmsj.2020-057","DOIUrl":"https://doi.org/10.2151/jmsj.2020-057","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1129-1146"},"PeriodicalIF":3.1,"publicationDate":"2020-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44240569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Is the Antarctic Ozone Hole Recovering Faster than Changing the Stratospheric Halogen Loading?","authors":"J. Krzyścin","doi":"10.2151/jmsj.2020-055","DOIUrl":"https://doi.org/10.2151/jmsj.2020-055","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1083-1091"},"PeriodicalIF":3.1,"publicationDate":"2020-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48099518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultra-high Resolution Numerical Weather Prediction with a Large Domain Using the K Computer. Part 2: The Case of the Hiroshima Heavy Rainfall Event on August 2014 and Dependency of Simulated Convective Cells on Model Resolutions","authors":"T. Oizumi, Kazuo Saito, L. Duc, J. Ito","doi":"10.2151/jmsj.2020-060","DOIUrl":"https://doi.org/10.2151/jmsj.2020-060","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1163-1182"},"PeriodicalIF":3.1,"publicationDate":"2020-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49126114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To reveal a maintenance mechanism for Rossby wave breaking (RWB) east of Japan and Pacific–Japan (PJ) pattern, which are triggered due to quasi-stationary Rossby wave propagation along the Asian jet, the past 44 RWB cases east of Japan are analyzed using a reanalysis dataset. A comparison between the composites of seven persistent and seven non-persistent cases, which are classified based on the duration of the RWB and PJ pattern, indicates that the persistent case demonstrates stronger and longer-lived quasi-stationary Rossby wave propagation along the Asian jet. The subsequent stronger RWB in the persistent case causes the consequential formation of the more enhanced PJ pattern through the stronger high potential vorticity intrusion toward the subtropical western North Pacific. The persistent case further demonstrates a persistent northward-tilting vertical structure of the anomalous anticyclone east of Japan, accompanied by the enhanced anomalous warm air advection in the lower to middle troposphere north of the anomalously extended North Pacific Subtropical High associated with the PJ pattern. The diagnosis of the Q-vector and partial correlation analysis indicate that the anomalous warm air advection in the middle troposphere is closely associated with dynamically induced anomalous ascent from Japan to the east by an adiabatic process. Enhanced anomalous moisture flux convergence from Japan to the east, which is due to the moisture inflow along the fringe of North Pacific Subtropical High from the subtropical western North Pacific, also causes the anomalous ascent over the region by a diabatic process. A simple correlation analysis reveals nearly equivalent associations of the adiabatic and diabatic factors with the anomalous ascent. The anomalous ascent contributes to enhanced and persistent RWB through a negative vorticity tendency due to vortex squashing in the upper troposphere, which further contributes to the enhanced and persistent PJ pattern in the persistent case.
{"title":"Maintenance Mechanism of Rossby Wave Breaking and Pacific-Japan Pattern in Boreal Summer","authors":"Kazuto Takemura, H. Mukougawa","doi":"10.2151/jmsj.2020-061","DOIUrl":"https://doi.org/10.2151/jmsj.2020-061","url":null,"abstract":"To reveal a maintenance mechanism for Rossby wave breaking (RWB) east of Japan and Pacific–Japan (PJ) pattern, which are triggered due to quasi-stationary Rossby wave propagation along the Asian jet, the past 44 RWB cases east of Japan are analyzed using a reanalysis dataset. A comparison between the composites of seven persistent and seven non-persistent cases, which are classified based on the duration of the RWB and PJ pattern, indicates that the persistent case demonstrates stronger and longer-lived quasi-stationary Rossby wave propagation along the Asian jet. The subsequent stronger RWB in the persistent case causes the consequential formation of the more enhanced PJ pattern through the stronger high potential vorticity intrusion toward the subtropical western North Pacific. The persistent case further demonstrates a persistent northward-tilting vertical structure of the anomalous anticyclone east of Japan, accompanied by the enhanced anomalous warm air advection in the lower to middle troposphere north of the anomalously extended North Pacific Subtropical High associated with the PJ pattern. The diagnosis of the Q-vector and partial correlation analysis indicate that the anomalous warm air advection in the middle troposphere is closely associated with dynamically induced anomalous ascent from Japan to the east by an adiabatic process. Enhanced anomalous moisture flux convergence from Japan to the east, which is due to the moisture inflow along the fringe of North Pacific Subtropical High from the subtropical western North Pacific, also causes the anomalous ascent over the region by a diabatic process. A simple correlation analysis reveals nearly equivalent associations of the adiabatic and diabatic factors with the anomalous ascent. The anomalous ascent contributes to enhanced and persistent RWB through a negative vorticity tendency due to vortex squashing in the upper troposphere, which further contributes to the enhanced and persistent PJ pattern in the persistent case.","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1183-1206"},"PeriodicalIF":3.1,"publicationDate":"2020-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47390808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Marine Low Clouds and their Parameterization in Climate Models","authors":"H. Kawai, S. Shige","doi":"10.2151/jmsj.2020-059","DOIUrl":"https://doi.org/10.2151/jmsj.2020-059","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1097-1127"},"PeriodicalIF":3.1,"publicationDate":"2020-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46020503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impacts of Sub-grid Ice Cloud Physics in a Turbulence Scheme on High Clouds and their Response to Global Warming","authors":"Tomoki Ohno, A. Noda, M. Satoh","doi":"10.2151/jmsj.2020-054","DOIUrl":"https://doi.org/10.2151/jmsj.2020-054","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1069-1081"},"PeriodicalIF":3.1,"publicationDate":"2020-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48649261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Comparison of the Effects of an Upper-Level Anticyclone and a Lower-Level Cyclone on Tropical Cyclogenesis in Idealized Simulations","authors":"Xi Cao, R. Wu, Yifeng Dai, Jing Xu","doi":"10.2151/jmsj.2020-052","DOIUrl":"https://doi.org/10.2151/jmsj.2020-052","url":null,"abstract":"","PeriodicalId":17476,"journal":{"name":"Journal of the Meteorological Society of Japan","volume":"98 1","pages":"1005-1027"},"PeriodicalIF":3.1,"publicationDate":"2020-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46426305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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