Search Results 1-20 of 636

  • The Precipitation Rate Retrieval Algorithms for the GPM Dual-frequency Precipitation Radar

    SETO Shinta , IGUCHI Toshio , MENEGHINI Robert , AWAKA Jun , KUBOTA Takuji , MASAKI Takeshi , TAKAHASHI Nobuhiro

    … <p> In this paper, precipitation rate retrieval algorithms for the Global Precipitation Measurement mission's Dual-frequency Precipitation Radar (DPR) are developed. … The DPR consists of a Ku-band radar (KuPR; … For the KuPR, an algorithm similar to the Tropical Rainfall Measuring Mission's Precipitation Radar algorithm is developed, with the relation between precipitation rate <i>R</i> …

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

    J-STAGE 

  • 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.

    … <p> 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). …

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

    J-STAGE 

  • Large Precipitation Gradients along the South Coast of Alaska Revealed by Spaceborne Radars

    AOKI Shunsuke , SHIGE Shoichi

    … <p> The present study focuses on the considerable spatial variability of precipitation along the western coast of a continent at mid-high latitude and investigates the precipitation climatology and mechanism along the south coast of Alaska, using datasets of spaceborne radars onboard two satellites, namely the Dual-frequency Precipitation Radar (DPR) KuPR onboard the Global Precipitation Measurement (GPM) core satellite and the Cloud Profiling …

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

    J-STAGE 

  • Risk of Rainfall-Triggered Landslide Disasters Under Climate Change by Applying Critical Line Method to NHRCM05

    WU Ying-Hsin , NAKAKITA Eiichi , KUNITOMO Masaru

    … We present a study on the future changes of landslide risk in Japan by applying the critical line method to the 5-km regional climate model of NHRCM05. … From the six datasets of NHRCM05, we extracted effective rainfall events from the parameter of surface precipitation without any interpolation. …

    京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 63(B), 272-281, 2020-12

    IR 

  • Distribution of Slope Movements Caused by Typhoon Hagibis (TY1919) near Marumori Town, Miyagi Prefecture and Sanriku Coastal Area, Iwate Prefecture  [in Japanese]

    若月 強 , 吉原 直志 , 遠藤 悠一 , 大森 想 , 古賀 亘

    … The distribution of slope movement (e.g. slope failure, debris flow) was investigated by developing a trace map of sediment movements by air photo interpretation and field survey, and the rainfall distribution and geology were compared. … Slope movements occurred more frequently in the area of granites than in the areas of volcanic rocks and sedimentary rocks such as accretionary prisms. …

    主要災害調査 = Natural Disaster Research Report (58), 1-14, 2020-12

    IR  DOI 

  • Projection for Future Change of Confidence Interval and Prediction Interval Based on Bayesian Method  [in Japanese]

    清水 啓太 , 山田 正 , 山田 朋人

    … One of the difficulties of hydrological frequency analysis is how to manage nonstationarity of rainfall which is caused by climate change accompanied global warming. … To manage nonstationarity of rainfall, using Bayesian statistics is effective. …

    中央大学理工学研究所論文集 (25), 41-56, 2020-03-31

    IR  DOI 

  • Relationship between Rainfall Return Period and Disaster-hit Region during the Heavy Rain Event of July 2018 in Japan  [in Japanese]

    平野 洪賓

    … のほうが災害発生地域との対応性が高く,降雨の「希さ」がより災害の起こりやすさを表す可能性を示唆した.今後災害の種類と雨量の特徴を明らかにするためにはさらなる詳細な調査が必要であり,再現期間の推定精度を評価する検証を行う必要もある.This paper examines the relationship between the return period of accumulated rainfall and the disaster-hit region during the Heavy Rain Event of July 2018 in …

    主要災害調査 = National Disaster Research Report (53), 59-66, 2020-03-26

    IR  DOI 

  • Sustaining Life amid Growing Uncertainties: Hamer Womens' Engagement in Land Management

    Tefera Samuel , KANEKO Morie

    … PART II Local Knowledge and LivelihoodsThe Omo Valley in southwestern part of Ethiopia has not seen modern human development infrastructures for decades and the Hamer women must endure all forms of marginalization as a result. … Hamer women as women and vulnerable groups have continued to suffer from the uncertainties from the consequences of poor development interventions, impacts from the changing climate and rangeland degradation. …

    African study monographs. Supplementary issue. (59), 69-82, 2020-03

    IR  DOI 

  • ANALYZING RETURN PERIOD OF NUMBER OF FLOODED RIVERS BY TYPHOON HAGIBIS AND ITS FUTURE CHANGE  [in Japanese]

    TANAKA Tomohiro , KOBAYASHI Keita , TACHIKAWA Yasuto

    … <p> Typhoon Hagibis caused serious damage to large area of Japan. … This study estimated the future changes in frequency of flood peak discharge and multi-basin flooding probability by the typhoon using bias-corrected d4PDF and a rainfall-runoff model constructed for all the class-A rivers in northeastern Japan (Tohoku, Kanto, and Koshinetsu regions). …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76(1), 159-165, 2020

    J-STAGE 

  • EVALUATING POTENTIAL FLOOD MITIGATION EFFECT OF PADDY FIELD DAM FOR TYPHOON NO. 19 IN 2019 IN THE NARUSE RIVER BASIN

    CHAI Yikai , TOUGE Yoshiya , SHI Ke , KAZAMA So

    … <p> In recent years, to mitigate the flood disaster caused by the increasing intensity and frequency of torrential rain events, some places have adjusted the retention of the paddy field by installing the runoff control device called paddy field dam. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76(1), 295-303, 2020

    J-STAGE 

  • MECHANISM OF RAINFALL INUNDATION CAUSED BY THE 2019 TYPHOON HAGIBIS IN IWATE PREFECTURE COASTAL ZONE, JAPAN  [in Japanese]

    KOMORI Daisuke , HENDRAWAN Vempi Satriya Adi , ICHIBA Akihiro , YAMADA Keitaro , GODA Akihiro

    of this study is to clarify mechanism of rainfall inundation caused by the 2019 Typhoon Hagibis in Iwate prefecture coastal zone, Japan, using probable 1-hour rainfalls estimated for the 2 periods of 1976-2005 and 1989-2018.</p><p> The differences between rainfalls by the 2019 Typhoon Hagibis and 10 year return level of 1-hour rainfall (<i>P<sub>10</sub></i>) of

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76(1), 264-273, 2020

    J-STAGE 

  • Characteristics of Large-Scale Atmospheric Fields during Heavy Rainfall Events in Western Japan: Comparison with an Extreme Event in Early July 2018

    HARADA Yayoi , ENDO Hirokazu , TAKEMURA Kazuto

    … <p>In order to explore large-scale atmospheric factors causing heavy rainfall events that occurred widely in western Japan, a composite analysis of atmospheric fields during the past heavy rainfall events in the region is conducted using the Japanese 55-year Reanalysis. …

    Journal of the Meteorological Society of Japan. Ser. II 98(6), 1207-1229, 2020

    J-STAGE 

  • 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

    … <p>The usefulness of Clausius–Clapeyron (CC) scaling in explaining extremely heavy precipitations is explored in the present-day climate and in pseudo-global-warming (PGW) conditions. … 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. …

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

    J-STAGE 

  • Assessing Flood Risk of the Chao Phraya River Basin Based on Statistical Rainfall Analysis

    Shakti P. C. , Miyamoto Mamoru , Misumi Ryohei , Nakamura Yousuke , Sriariyawat Anurak , Visessri Supattra , Kakinuma Daiki

    … <p>The Chao Phraya River Basin is one of the largest in Asia and is highly vulnerable to water-related disasters. … Based on rainfall gauge data over 36 years (1981–2016), a frequency analysis was performed for this basin to understand and evaluate its overall flood risk; … daily rainfall measurements of 119 rain gauge stations within the basin were considered. …

    Journal of Disaster Research 15(7), 1025-1039, 2020

    J-STAGE 

  • Flood Inundation Mapping of the Hitachi Region in the Kuji River Basin, Japan, During the October 11–13, 2019 Extreme Rain Event

    P. C. Shakti , Hirano Kohin , Iizuka Satoshi

    … <p>The frequency of severe flood events has been increasing recently in Japan. … One of the latest events occurred in October 2019 and caused extensive damage in several river basins, especially in the central and northern regions of the country. …

    Journal of Disaster Research 15(6), 712-725, 2020

    J-STAGE 

  • ESTIMATING FUTURE CHANGES OF EXTREME RIVER DISCHARGE IN THE RED RIVER, VIETNAM USING d4PDF  [in Japanese]

    KATO Daisuke , SHINOHARA Mizuki , NAGANO Takashi , KATO Masaya , TSUBOKI Kazuhisa , TANAKA Tomohiro , TACHIKAWA Yasuto , NAKAKITA Eiichi

    … A distributed Hydrologic Model 1K-DHM, based on a kinematic wave approximation, was used for rainfall-runoff simulation. … In addition, future changes of the atmospheric environments resulting largest-class flood peak discharge were evaluated. … The results show that 1) the frequency distributions of annual maximum 15-days rainfall for d4PDF of the historical experiment match with those for APHRO_MA. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76(1), 107-117, 2020

    J-STAGE 

  • Rainfall Trends in Vietnam and Their Associations with Tropical Cyclones during 1979-2019

    Pham-Thanh Ha , Ngo-Duc Thanh , Matsumoto Jun , Phan-Van Tan , Vo-Van Hoa

    … <p>This study investigated rainfall trends and their associations with tropical cyclones (TCs) during the period of 1979-2019, using TC best-track data from the Regional Specialized Meteorological Center Tokyo - Typhoon Center and daily rainfall data from 138 meteorological stations in Vietnam. … The radius of influence of TCs on local rainfall was limited to 500 km from TC centers. …

    SOLA 16(0), 169-174, 2020

    J-STAGE 

  • 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.

    … <p>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

    J-STAGE 

  • Extreme Rainfall Projections for Malaysia at the End of 21st Century Using the High Resolution Non-Hydrostatic Regional Climate Model (NHRCM)

    Ngai Sheau Tieh , Sasaki Hidetaka , Murata Akihiko , Nosaka Masaya , Chung Jing Xiang , Juneng Liew , Supari , Salimun Ester , Tangang Fredolin

    … <p>The Non-Hydrostatic Regional Climate Model (NHRCM) was used in simulating the present and future rainfall climate over Malaysia under the RCP8.5 scenario in this study. … Simulation and projection from 1979 to 2002 for present day and 2070 to 2100 for the end of century were conducted over the Malaysia. …

    SOLA 16(0), 132-139, 2020

    J-STAGE 

  • A Bayesian Correction Approach for Improving Dual-frequency Precipitation Radar Rainfall Rate Estimates

    MA Yingzhao , CHANDRASEKAR V. , BISWAS Sounak K.

    … <p>The accurate estimation of precipitation is an important objective for the Dual-frequency Precipitation Radar (DPR), which is located on board the Global Precipitation Measurement (GPM) satellite core observatory. … In this study, a Bayesian correction (BC) approach is proposed to improve the DPR's instantaneous rainfall rate product. …

    Journal of the Meteorological Society of Japan. Ser. II 98(3), 511-525, 2020

    J-STAGE 

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