Search Results 1-20 of 491

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Characteristics of Atmospheric Environments of Quasi-Stationary Convective Bands in Kyushu, Japan during the July 2020 Heavy Rainfall Event

Araki Kentaro , Kato Teruyuki , Hirockawa Yasutaka , Mashiko Wataru

… This study investigated characteristics of atmospheric environmental fields in the occurrence of quasi-stationary convective bands (QSCBs) in Kyushu, western Japan during the July 2020 heavy rainfall event. …

SOLA, 2021

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2

The Synoptically-Influenced Extreme Precipitation Systems over Asian-Australian Monsoon Regio Observed by TRMM Precipitation Radar

JIAN Hong-Wen , CHEN Wei-Ting , CHEN Peng-Jen , WU Chien-Ming , RASMUSSEN Kristen L.

… This study investigates the synoptic scale flows associated with extreme rainfall systems over the Asian-Australian monsoon region (90-160°E and 12°S-27°N). … Based on statistics of the 17-year Precipitation Radar observations from Tropical Rainfall Measurement Mission, a total of 916 extreme systems with both the horizontal size and maximum rainfall intensity exceeding the 99.9th percentiles of the tropical rainfall systems are identified over this region. …

Journal of the Meteorological Society of Japan. Ser. II, 2021

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Rainfall Characteristics and their Environmental Conditions during the Heavy Rainfall Events over Japan in July of 2017 and 2018

UNUMA Takashi , TAKEMI Tetsuya

… In July of 2017 and 2018, heavy rainfall events occurred, leading to significant damage in Japan. … This study investigated the rainfall characteristics and environmental conditions for these heavy rainfall events using rain intensity data from operational weather radars and mesoscale analysis data. …

Journal of the Meteorological Society of Japan. Ser. II, 2021

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The Impact of Diurnal Precipitation over Sumatra Island, Indonesia, on Synoptic Disturbances and its Relation to the Madden-Julian Oscillation

SEIKI Ayako , YOKOI Satoru , KATSUMATA Masaki

… The impact of diurnal precipitation over Sumatra Island, the Indonesian Maritime Continent (MC), on synoptic disturbances over the eastern Indian Ocean is examined using high-resolution rainfall data by the Global Satellite Mapping of Precipitation project and the Japanese 55-year Reanalysis data during the rainy season from September to April for the period 2000-2014. …

Journal of the Meteorological Society of Japan. Ser. II, 2021

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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

OIZUMI Tsutao , SAITO Kazuo , DUC Le , ITO Junshi

Journal of the Meteorological Society of Japan 98(6), 1163-1182, 2020-12
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Analysis on the Future Change of Back-building Extreme Rainfall by Pseudo Global Warming Experiment Based on Different Resolutions for 2012 Kameoka Event [in Japanese]

小坂田ゆかり , 中北英一

… Pseudo global warming experiments (PGW) were conducted with 1000m and 500m horizontal resolution for the 2012 Kameoka extreme rainfall event, which was the type of back-building convection system. … As a result, the back-building system was very well represented in both of present and PGW experiments, and the rainfall intensity and total rainfall increased in PGW experiments. …

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 63(B), 233-240, 2020-12

IR
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Accumulated Rainfall Analyzed Using MLIT's XRAIN Data for the Heavy Rain Event of July 2018 in Japan [in Japanese]

前坂剛

… を開始したため，その定量的推定は改善していると思われる．また，岐阜県北部のレーダー遮蔽域にはX バンドレーダーの設置が有効であろう．一方，岡山県南部ではXRAIN は弱い過大評価を示した．これは常山レーダーの短パルス域・長パルス域の境界や，熊山周辺のグランドクラッタ付近における過大な減衰補正によるものである．This work briefly discussed the line-shaped convective systems observed during the Heavy Rain Event of July …

主要災害調査 = National Disaster Research Report (53), 49-58, 2020-03-26

IR DOI
8

Temporal Relationship between Occurrence of Line-shaped Convective Systems and Issuing of Special Heavy Rain Warnings during the Heavy Rain Event of July 2018 in Japan [in Japanese]

櫻井南海子 , 清水慎吾 , 前坂剛 , 下瀬健一

… 日から8 日にかけては，特に降雨量が多かった．大雨特別警報が発表された市町村から5 地点を抽出し，雨量の時間変化を調べたところ，この期間は積算雨量が急激に増加しており，線状降水帯が連続的もしくは断続的に同じ場所に存在することで，大雨特別警報が発表されるほどの非常に稀な大雨をもたらしていたことが分かった．This work briefly discussed the line-shaped convective systems observed during the Heavy Rain Event of July …

主要災害調査 = National Disaster Research Report (53), 39-48, 2020-03-26

IR DOI
9

Characteristics of an Extreme Rainfall Event in Kyushu District, Southwestern Japan in Early July 2020

Hirockawa Yasutaka , Kato Teruyuki , Araki Kentaro , Mashiko Wataru

… An extreme rainfall event brought precipitation amounts exceeding 1000 mm in Kyushu district, southwestern Japan, in early July 2020. … Especially, an elongated and stagnated mesoscale convective system formed around the Kuma River in central Kyushu district produced localized heavy rainfall with precipitation amounts larger than 600 mm in 13 hours. …

SOLA 16(0), 265-270, 2020

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10

Impact of Resolution and Parameterized Convection on the Diurnal Cycle of Precipitation in a Global Nonhydrostatic Model

ARNOLD Nathan P. , PUTMAN William M. , FREITAS Saulo R.

… Regions dominated by non-local propagating convection show the greatest improvement, with better representation of organized convective systems. … An additional 3.5 km experiment employing the GFDL microphysics scheme and higher vertical resolution shows further improvement in propagating convection, but an earlier rainfall peak in locally forced regions. …

Journal of the Meteorological Society of Japan. Ser. II 98(6), 1279-1304, 2020

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11

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

OIZUMI Tsutao , SAITO Kazuo , DUC Le , ITO Junshi

… The planetary boundary layer schemes had a smaller impact in this case, which is different from the Izu Oshima case.This study also investigated the dependency of simulated convective cores (CCs) on model resolutions. …

Journal of the Meteorological Society of Japan. Ser. II 98(6), 1163-1182, 2020

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Clausius-Clapeyron Scaling of Extremely Heavy Precipitations: Case Studies of the July 2017 and July 2018 Heavy Rainfall Events over Japan

NAYAK Sridhara , TAKEMI Tetsuya

… This is analyzed by conducting regional-scale numerical simulations at 1-km grid resolution for two recent extreme rainfall events that occurred in Japan: the case in northern Kyushu during 5–6 July 2017 and the case in Shikoku Island during 5–8 July 2018. … The increase in peak precipitation intensity and the rate of precipitation increase against temperature in future warming climate are attributed to the decrease in temperature lapse rate and increase in atmospheric water vapor and convective available potential energy. …

Journal of the Meteorological Society of Japan. Ser. II 98(6), 1147-1162, 2020

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13

Impact of urbanization on convective rainfall in Singapore [in Japanese]

Doan Quang-Van

… There is still no consensus on the urban impact on convective precipitation over large cities, especially in the tropics. … We use supper high-resolution numerical weather prediction (NWP) system, developed at the Meteorological Service Singapore, to simulate the rainfall climate over the region during the five November between 2010 and 2014. …

Proceedings of the General Meeting of the Association of Japanese Geographers 2020a(0), 165, 2020

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14

Comparison of Convective and Stratiform Precipitation Properties in Developing and Nondeveloping Tropical Disturbances Observed by the Global Precipitation Measurement over the Western North Pacific

WANG Ke , CHEN Guanghua , BI Xinxin , SHI Donglei , CHEN Kexin

… In this study, using observations from the Global Precipitation Measurement (GPM) satellite, tropical disturbances over the western North Pacific (WNP) from July to October during 2014–2016 are categorized into developing and nondeveloping groups to investigate the differences between satellite-retrieved convective and stratiform precipitation properties in both the inner-core (within 200 km of the disturbance center) and outer-core (within 200–400 km of the disturbance center) regions. …

Journal of the Meteorological Society of Japan. Ser. II 98(5), 1051-1067, 2020

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15

Difference Between Cloud Top Height and Storm Height for Heavy Rainfall Using TRMM Measurements

SONG Hwan-Jin , KIM Sunyoung , ROH Soonyoung , LEE Hyesook

… This study compares the regional characteristics of heavy rain clouds in terms of Cloud Top Height (CTH) and Storm Height (SH) from long-term Tropical Rainfall Measuring Mission (TRMM) observations. … Heavy rainfall in continental rainfall regimes, such as Central Africa and the United States, is characterized by high SH, in contrast to oceanic rainfall regions, such as the northwestern Pacific, Korea, and Japan; …

Journal of the Meteorological Society of Japan. Ser. II 98(5), 901-914, 2020

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16

Identification and Classification of Heavy Rainfall Areas and their Characteristic Features in Japan

HIROCKAWA Yasutaka , KATO Teruyuki , TSUGUTI Hiroshige , SEINO Naoko

… We propose a new procedure for the objective identification and classification of heavy rainfall areas (HRAs) to advance the understanding of mesoscale convective systems (MCSs) in Japan. …

Journal of the Meteorological Society of Japan. Ser. II 98(4), 835-857, 2020

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17

Genesis and Maintenance Processes of a Quasi-stationary Convective Band that Produced Record-Breaking Precipitation in Northern Kyushu, Japan on 5 July 2017

KAWANO Tetsuya , KAWAMURA Ryuichi

… A quasi-stationary convective band that persisted for approximately ten hours caused precipitation in the northern part of Kyushu Island, Japan on 5 July 2017. … The extreme amount of rainfall produced by this convective band caused a number of landslides and flash floods and resulted in a severe disaster. …

Journal of the Meteorological Society of Japan. Ser. II 98(4), 673-690, 2020

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18

4-year Climatology of Global Drop Size Distribution and its Seasonal Variability Observed by Spaceborne Dual-frequency Precipitation Radar

YAMAJI Moeka , TAKAHASHI Hiroshi G. , KUBOTA Takuji , OKI Riko , HAMADA Atsushi , TAKAYABU Yukari N.

… This study investigates the global drop size distribution (DSD) of rainfall and its relationship to large-scale precipitation characteristics using the Dual-frequency Precipitation Radar (DPR) onboard the Global Precipitation Measurement (GPM) Core Observatory. …

Journal of the Meteorological Society of Japan. Ser. II 98(4), 755-773, 2020

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19

Quasi-stationary Band-Shaped Precipitation Systems, Named "Senjo-Kousuitai", Causing Localized Heavy Rainfall in Japan

KATO Teruyuki

… In Japan, localized heavy rainfall events producing accumulated three-hour precipitation amounts larger than 200 mm are often observed to cause severe landslides and floods. … Senjo-kousuitai is defined as a band-shaped heavy rainfall area with a length of 50–300 km and a width of 20 - 50 km, produced by successively formed and developed convective cells, lining up to organize multi-cell clusters, and passing or stagnating at almost the same place for a few hours. …

Journal of the Meteorological Society of Japan. Ser. II 98(3), 485-509, 2020

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20

Raindrop Size Distribution Characteristics of Indian and Pacific Ocean Tropical Cyclones Observed at India and Taiwan Sites

JANAPATI Jayalakshmi , UNNIKRISHNAN C. K. , SEELA Balaji Kumar , LIN Pay-Liam , WANG Pao K. , TSENG Chie-Huei , REDDY K. Krishna , HASHIGUCHI Hiroyuki , FENG Lei , DAS Subrata Kumar

… RSD values quantified based on rainfall rate and precipitation types also showed similar characteristics between Indian Ocean and Pacific Ocean TCs. … The radar reflectivity and rainfall rate (Z-R) relations and shape and slope (μ-Λ) relations of both oceanic (Indian and Pacific) TCs are found to be distinctly different. …

Journal of the Meteorological Society of Japan. Ser. II 98(2), 299-317, 2020

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