SAYAMA Takahiro

J-GLOBAL         Last updated: Jun 23, 2019 at 05:47
 
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Name
SAYAMA Takahiro
Affiliation
Kyoto University
Section
Disaster Prevention Research Institute Disaster Management for Safe and Secure Society
Degree
Dr. Eng.(Kyoto University), M.S.(Kyoto University), B. Eng.(Kyoto University)

Research Areas

 
 

Academic & Professional Experience

 
Apr 2015
   
 
Associate Professor, Kyoto University Disaster Prevention Research Institute
 
Oct 2009
 - 
Mar 2015
Adjunct Associate Professor, GRIPS
 
Oct 2009
 - 
Mar 2015
Researcher Senior Researcher, ICHARM, Public Works Research Institute
 
Apr 2007
 - 
Sep 2009
Assistant Professor, Disaster Prevention Research Institute, Kyoto University
 
2007
 - 
2009
: Courtesy Faculty at Oregon State University
 

Education

 
 
 - 
2005
Urban and environmental engineering, Graduate School, Division of Engineering, Kyoto University
 
 
 - 
2003
Civil Engineering, Graduate School, Division of Engineering, Kyoto University
 

Committee Memberships

 
 
   
 
Japan Society of Hydrology and Water Resources  Editorial Board Member of Hydrological Research Letters(2008.9-Current)
 
 
   
 
Asia Oceania Geosciences Society  Hydrological Section Secretary, Financial Support Committee Member (2008 - Current)
 

Awards & Honors

 
2008
Best Paper Award for Young Scientist, Japan Society of Hydrology and Water Resources
 
2008
Best Poster Award, International Conference on Hydropedology
 
2007
Best Paper Award, Japan Society for Civil Engineers
 
2007
Best Paper Award, Japan Society for Civil Engineers
 

Published Papers

 
Wu Ying-Hsin, Sayama Takahiro, Nakakita Eiichi
WATER RESOURCES RESEARCH   55(4) 3597-3598   Apr 2019   [Refereed]
Han Xue, Takahiro Sayama, Kaoru Takara, Bin He, Guangwei Huang, Weili Duan
Hydrological Sciences Journal      Jan 2019
© 2019, © 2019 IAHS. For efficient and targeted management, this study demonstrates a recently developed non-point source (NPS) pollution model for a year-long estimation in the Pingqiao River Basin (22.3 km2) in China. This simple but physically ...
Ecological Effects of Hydrological Process on Time of Concentration
Chong Khai Lin, Nifa Faizatul Akmar Abdul, Nawi Mohd Nasrun Mohd, Sayama Takahiro, Takara Kaoru, Abustan Ismail
EKOLOJI   28(107) 1437-1443   2019   [Refereed]
長野智絵, 津守博通, 稲村友彦, 佐野肇, 小林健一郎, 佐山敬洋, 寶馨
自然災害科学   37(2) 191‐203   Aug 2018
長野智絵, 津守博通, 稲村友彦, 佐野肇, 小林健一郎, 佐山敬洋, 寶馨
自然災害科学   37(2) 177‐189   Aug 2018
Andrea M. Juarez-Lucas, Kelly M. Kibler, Takahiro Sayama, Miho Ohara
Journal of Flood Risk Management      Jan 2018
© 2018 The Chartered Institution of Water and Environmental Management (CIWEM) and John Wiley & Sons Ltd Flood risk assessments often overlook benefits of floodplain use and the influence of coping capacity. Herein we present a classic flood ris...
佐山 敬洋, 小林 亮祐, 寶 馨
水工学論文集 Annual journal of Hydraulic Engineering, JSCE   63 I_1507-1512   2018
Hu M, Sayama T, Zhang X, Tanaka K, Takara K, Yang H
Journal of environmental management   193(193) 430-438   May 2017   [Refereed]
Troselj Josko, Sayama Takahiro, Varlamov Sergey M., Sasaki Toshiharu, Racault Marie-Fanny, Takara Kaoru, Miyazawa Yasumasa, Kuroki Ryusuke, Yamagata Toshio, Yamashiki Yosuke
JOURNAL OF HYDROLOGY   555 956-970   Dec 2017   [Refereed]
Wu Ying-Hsin, Sayama Takahiro, Nakakita Eiichi
WATER RESOURCES RESEARCH   54(9) 5933-5947   Sep 2018   [Refereed]
SPATIAL AND SEASONAL VARIABILITIES OF WATER USE AND AVAILABILITY IN BALI
Eva Mia SISKA,Takahiro SAYAMA,Kaoru TAKARA
土木学会論文集B1   74(4) I_1333-I_1338   Mar 2018   [Refereed]
Perera Edangodage Duminda Pradeep, Sayama Takahiro, Magome Jun, Hasegawa Akira, Iwami Yoichi
HYDROLOGY   4(4)    Dec 2017   [Refereed]
Hu Maochuan, Sayama Takahiro, Duan Weili, Takara Kaoru, He Bin, Luo Pingping
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES   62(8) 1255-1265   2017   [Refereed]
牛山朋來, 佐山敬洋, 岩見洋一
水文・水資源学会誌   30(2) 112‐125   Mar 2017
Han Xue,Takahiro Sayama,Kaoru Takara,Bin He,Weili Duan
Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering)   4(73) 169-174   Mar 2017   [Refereed]
Khai Lin Chong,Takahiro Sayama,Kaoru Takara,Ismail Abustan
Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering)   4(73) 151-156   Mar 2017   [Refereed]
Karlina,Takahiro Sayama,Kaoru Takara
Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering)   4(73) 163-168   Mar 2017   [Refereed]
Juarez-Lucas Andrea M., Kibler Kelly M., Ohara Miho, Sayama Takahiro
NATURAL HAZARDS   84(3) 2243-2264   Dec 2016   [Refereed]
Sayama Takahiro, Tanaka Shigenobu, Takara Kaoru
Proceeding of Annual Conference   29(0)    Sep 2016
This study analyzes flood runoff at the upper Kinu River Basin during Kanto-Tohoku torrential rainfall in September 2015. After 140 mm of initial rainfall, 20 mm/h of rainfall continued for more than 10 hours. Since the time of concentration of th...
加藤紘規, 小久保翼, 中村仁, 松下潤, 宮本善和, 安田浩保, 佐山敬洋
地球環境シンポジウム講演集   24th 71‐76   Aug 2016
佐山 敬洋, 寶 馨
京都大学防災研究所年報. A = Disaster Prevention Research Institute Annuals. A   59(0) 74-84   Jun 2016
Kanto-Tohoku heavy rainfall in September 2015 caused a severe flood disaster at the downstream of the Kinu River, a tributary of the Tone River. Overflow and the levee breech caused a widespread flood inundation with about 40 km2 in Joso city and ...
Maochuan Hu,Takahiro Sayama,Shusuke Takahashi,Kaoru Takara
土木学会論文集B1(水工学)   72(4) I_451-I_456   2016   [Refereed]
Daisuke Kuribayashi,Miho Ohara,Takahiro Sayama,Atsuhiko Konja,Hisaya Sawano
Journal of Disaster Research   6(11) 1161-1175   Dec 2016   [Refereed]
© 2016 Fuji Technology Press Ltd. All Rights Reserved. This paper proposes a method to evaluate the flood risk of each district in a municipality to assist disaster management personnel. The method is specifically for municipalities in a mountaino...
Tomoki Ushiyama,Takahiro Sayama,Yoichi Iwami
Journal of Disaster Research   6(11) 1032-1039   Dec 2016   [Refereed]
© 2016 Fuji Technology Press Ltd. All Rights Reserved. In order to be able to issue flood warnings not hours but days in advance, numerical weather prediction (NWP) is essential to the forecasting of flood-producing rainfall. The regional ensemble...
Andrea Mariel Juarez-Lucas,Kelly Maren Kibler,Miho Ohara,Takahiro Sayama
Natural Hazards   23(84) 2243-2264   2016   [Refereed]
Maochuan Hu,Takahiro Sayama,Shusuke Takahashi,Kaoru Takara
Journal of Japan Society of Civil Engineers, Ser B1 (Hydraulic Engineering)   4(72) 451-456   2016   [Refereed]
Sayama Takahiro, Kosugi Ken'ichirou
Proceeding of Annual Conference   28(0)    Sep 2015
Recent studies in forest hydrology have reported the existence of mountainous grounwater in weatherd bedrock and its considerbly quick response to rainfall input. Furthermore, the dynamics of mountainous groundwater in the bedrock influences on sa...
佐山 敬洋, 寶 馨
京都大学防災研究所年報   (59) 74-84   2015
Fernandez Rodrigo, Sayama Takahiro
HYDROLOGICAL RESEARCH LETTERS   9(4) 75-83   2015   [Refereed]
加藤紘規, 中村仁, 松下潤, 宮本善和, 安田浩保, 佐山敬洋
地球環境シンポジウム講演集   23rd 233-238   Sep 2015
Rodrigo Fernandez,Takahiro Sayama
Hydrology and Earth System Science   4(19) 1919-1942   Apr 2015   [Refereed]
© Author(s) 2015. CC Attribution 3.0 License. Hydrological functions of river basins are summarized as collection, storage and discharge, which can be characterized by the dynamics of hydrological variables including precipitation, evaporation, st...
TANAKA SHIGENOBU, TERAKAWA AKIRA, YOSHITANI JUN'ICHI, TAKEMOTO NORIMICHI, NORO TOMOYUKI, TOKIOKA TOSHIKAZU, RABINDRA OSTI, KURIBAYASHI DAISUKE, YAMASHITA HIDEO, FUKAMI KAZUHIKO, INOMATA HIRONORI, SUGIURA TOMONOBU, ISTIYANTO DINAR, MIYAKE KATSUHITO, KUDO KEI, MAGOME JUN, OZAWA GO, KAWAKAMI TAKAHIRO, NABESAKA SEISHI, SAYAMA TAKAHIRO, YOGANATH ADIKARI, SHIMIZU YOSHIKAZU, WATANABE YASUHARU, YASUDA HIROYASU, HIRAI YASUYUKI, YOSHIKAWA YASUHIRO, YANO MASAAKI, ISHITANI TAKASHI, ABE TAKAAKI
土木研究所報告   (222) 1-48   Jan 2015
T. Sayama, Y. Tatebe, Y. Tatebe, S. Tanaka, S. Tanaka
Journal of Flood Risk Management      Jan 2015   [Refereed]
© 2015 The Chartered Institution of Water and Environmental Management (CIWEM) and John Wiley & Sons Ltd. A devastating flood disaster occurred in Thailand in 2011. In case of such large-scale flooding, it is important to predict the dynamics of i...
Takahiro Sayama,Yuya Tatebe,Yoichi Iwami,Shigenobu Tanaka
Nat. Hazards Earth Syst. Sci.   15(15) 1617-1630   Jul 2015   [Refereed]
© Author(s) 2015. The Thailand floods in 2011 caused unprecedented economic damage in the Chao Phraya River basin. To diagnose the flood hazard characteristics, this study analyses the hydrologic sensitivity of flood runoff and inundation to rainf...
工藤俊, 佐山敬洋, 長谷川聡, 岩見洋一
土木学会論文集 B1(水工学)(Web)   71(4) I.1321-I.1326 (J-STAGE)   2015
TSUDA MORIMASA, SUGIURA AI, SAYAMA TAKAHIRO, IWAMI YOICHI
土木技術資料   56(11) 34-37   Nov 2014
I. Fujita, T. Ito, T. Sayama
Journal of Flood Risk Management   7 54-64   Mar 2014
The Chikusa River in Hyogo Prefecture suffered from extremely heavy rains by Typhoon Number 9 (Typhoon Etau) in 2009. In the Sayo-cho area, the inundated flood claimed more than 20 lives, many of whom were trying to evacuate from the inundated ris...
Ushiyama Tomoki, Sayama Takahiro, Tatebe Yuya, Fujioka Susumu, Fukami Kazuhiko
JOURNAL OF HYDROMETEOROLOGY   15(1) 193-211   Feb 2014   [Refereed]
SAYAMA TAKAHIRO, IWAMI YOICHI
土木技術資料   56(6) 18-21   Jun 2014
SAYAMA TAKAHIRO
土木技術資料   56(5) 42-43   May 2014
SAYAMA TAKAHIRO, FUJIOKA SUSUMU, KOSHIDA TOMOKI, MIURA YUJI, IWAMI YOICHI, FUKAMI KAZUHIKO
土木学会論文集 B1(水工学)(Web)   70(4) I.517-I.522 (J-STAGE)   2014
SAYAMA TAKAHIRO
土木技術資料   55(10) 48-49   Oct 2013
Anurak Sriariyawat, Kwanchai Pakoksung, Takahiro Sayama, Shigenobu Tanaka, Sucharit Koontanakulvong
Journal of Disaster Research   8 406-414   Jun 2013
Thailand was hit by a great flood in 2011 resulting from irregular rainfall during the typhoon season that was estimated at 140% more than average. The flood began in the north and slowly moved to the central region, where it remained for more tha...
Ivana S., Krvavica Y., Ruzic N., Ozanic N.
水利科学   57(5) 148-163   2013
JICA-JST SATREPS事業「開発途上国のニーズを踏まえた防災科学技術」における課題「クロアチア土砂・洪水災害軽減基本計画構築」において,水文・洪水災害研究グループは以下のような目的をもって研究活動を行った: (i)クロアチアにおける特徴的な洪水であるフラッシユフラッド発生機構の解明,(ii)土石流発生メカニズムおよび発生地域の解明,(iii)早期警戒システムの構築,の三つである。
佐山 敬洋, 建部 祐哉, 藤岡 奨, 牛山 朋來, 萬矢 敦啓, 田中 茂信
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)   69(1) 14-29   2013
 An emergency response-type flood prediction was conducted for the devastating 2011 Thailand flood with a recently developed Rainfall-Runoff-Inundation (RRI) model. The prediction conducted in mid-October 2011, when the flood peak was just ap...
Giha Lee, Giha Lee, Yasuto Tachikawa, Takahiro Sayama, Kaoru Takara
Hydrological Processes   26(6) 893-906   Mar 2012   [Refereed]
In a hydrological simulation using a complex model, equifinality is likely to occur in many different ways, due to various sources associated with the model structure, parameter as well as data uncertainties involved in modeling process. This stud...
Apip, Takahiro Sayama, Yasuto Tachikawa, Kaoru Takara
Hydrological Processes   26(6) 855-871   Mar 2012   [Refereed]
This paper proposes a method to spatially lump a distributed rainfall-sediment-runoff model at the catchment scale. Based on a kinematic wave rainfall-sediment-runoff model, the proposed method spatially integrates (1) a rainfall-runoff model that...
SAYAMA TAKAHIRO, TATEBE YUYA, FUJIOKA SUSUMU, USHIYAMA TOMOKI, TANAKA SHIGENOBU
土木学会論文集 B1(水工学)(Web)   69(4) I.463-I.468 (J-STAGE)   2013
FUJIOKA SUSUMU, SAYAMA TAKAHIRO, MIURA YUJI, KOSHIDA TOMOKI, FUKAMI KAZUHIKO
土木学会論文集 B1(水工学)(Web)   69(4) I.319-I.324 (J-STAGE)   2013
TATEBE YUYA, SAYAMA TAKAHIRO, USHIYAMA TOMOKI, FUJIOKA SUSUMU, TANAKA SHIGENOBU
土木学会論文集 B1(水工学)(Web)   69(4) I.457-I.462 (J-STAGE)   2013
Takahiro Sayama, Jeffrey J. Mcdonnell, Jeffrey J. Mcdonnell, Amod Dhakal, Kate Sullivan
Hydrological Processes   25(25) 3899-3908   Dec 2011   [Refereed]
Subsurface runoff dominates the hydrology of many steep humid regions, and yet the basic elements of water collection, storage, and discharge are still poorly understood at the watershed scale. Here, we use exceptionally dense rainfall and runoff ...
Takahiro Sayama, Go Ozawa, Takahiro Kawakami, Seishi Nabesaka, Kazuhiko Fukami
Hydrological Sciences Journal   57(2) 298-312   Feb 2012   [Refereed]
Pakistan has suffered a devastating flood disaster in 2010. In the Kabul River basin (92 605 km 2), large-scale riverine and flash floods caused destructive damage with more than 1100 casualties. This study analysed rainfall-runoff and inundation ...
SAYAMA TAKAHIRO, FUJIOKA SUSUMU, USHIYAMA TOMOKI, TATEBE YUYA, FUKAMI KAZUHIKO
水工学論文集(CD-ROM)   56 ROMBUNNO.83   Feb 2012
SAYAMA TAKAHIRO, LIN NAY MYO, FUKAMI KAZUHIKO, TANAKA SHIGENOBU, TAKEUCHI KUNIYOSHI
水工学論文集(CD-ROM)   55 ROMBUNNO.89   Feb 2011
TSUBAKI RYOTA, KAWAHARA YOSHIHISA, SAYAMA TAKAHIRO, FUJITA ICHIRO
水工学論文集(CD-ROM)   55 ROMBUNNO.154   Feb 2011
Apip, T. Sayama, Y. Tachikawa, K. Takara, Y. Yamashiki
Journal of Flood Risk Management   3 270-284   Dec 2010
This paper presents a framework for assessing the contribution of different sources of parametric uncertainty in sediment runoff simulations. The proposed uncertainty assessment is comprised in the three procedures. First, global parametric sensit...
J. J. McDonnell, J. J. McDonnell, K. McGuire, P. Aggarwal, K. J. Beven, D. Biondi, G. Destouni, S. Dunn, A. James, J. Kirchner, P. Kraft, S. Lyon, P. Maloszewski, B. Newman, L. Pfister, A. Rinaldo, A. Rodhe, T. Sayama, J. Seibert, K. Solomon, C. Soulsby, M. Stewart, D. Tetzlaff, C. Tobin, P. Troch, M. Weiler, A. Western, A. Wörman, S. Wrede
Hydrological Processes   24 1745-1754   Jun 2010
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, KANNO HIROKI, TAKARA KAORU
水工学論文集(CD-ROM)   54 ROMBUNNO.92   Feb 2010
Takahiro Sayama, Kaoru Takara, Yasuto Tachikawa
Advances in Geosciences: Volume 17: Hydrological Science (HS)   279-293   Jan 2010
© 2010 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. This study proposes a lumping method for a physically-based distributed sediment runoff model. A distributed-lumped model obtained by the lumping method enables to predict fl...
Lee Giha, Tachikawa Yasuto, Sayama Takahiro, Takara Kaoru
Advances in Geosciences: Volume 17: Hydrological Science (HS)   39-51   Jan 2010
© 2010 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. Model identification is the most fundamental task in rainfall-runoff modeling. However, it is not easy due to various uncertainty sources involved in modeling processes. In s...
SAYAMA TAKAHIRO, KOBAYASHI KEN'ICHIRO, TAKARA KAORU
平成21年台風9号による河川災害調査報告書 平成22年   28-36   2010
Sunmin Kim, Yasuto Tachikawa, Takahiro Sayama, Kaoru Takara
Hydrological Processes   23(4) 597-611   Feb 2009   [Refereed]
A new attempt on ensemble flood forecasting is introduced by use of a radar image extrapolation along with a stochastic error field simulation, and a distributed hydrologic model. In contrast to the conventional ensemble simulation that uses initi...
Takahiro Sayama, Takahiro Sayama, Jeffrey J. McDonnell
Water Resources Research   45    Jul 2009   [Refereed]
Hydrograph source components and stream water residence time are fundamental behavioral descriptors of watersheds but, as yet, are poorly represented in most rainfall-runoff models. We present a new time-space accounting scheme (T-SAS) to simulate...
T. Sayama, J. J. McDonnell
From Headwaters to the Ocean: Hydrological Changes and Watershed Management - Proceedings of the International Conference on Hydrological Changes and Management from Headwaters to the Ocean, HYDROCH   223-229   Dec 2009
The impact of climate change and human activity on hydrologic change can be evaluated only with a hydrologic model that is capable to simulate adequate sources, flowpaths and residence time of water, yet the capability for capturing these measures...
F. K. Barthold, T. Sayama, K. Schneider, L. Breuer, K. B. Vaché, H. G. Frede, J. J. McDonnell
Advances in Geosciences   18 3-8   Jun 2008
A major research challenge in ungauged basins is to quickly assess the dominant hydrological processes of watersheds. In this paper we present a top-down approach from first field reconnaissance to perceptual model development, model conceptualiza...
SAYAMA Takahiro, TACHIKAWA Yasuto, TAKARA Kaoru, MASUDA Amika, SUZUKI Takuya
JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   21(4) 296-313   2008
This study aims at evaluating the impact of climate change on flood disasters and dam reservoir operation in the Yodo River basin by feeding precipitation and evapotranspiration projection from Global Circulation Model (GCM) to a distributed hydro...
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会論文集 B(Web)   64(4) 226-239 (J-STAGE)   2008
Yasuto Tachikawa, Ryoichi Takubo, Takahiro Sayama, Kaoru Takara
IAHS-AISH Publication   18-24   Dec 2007
In the Asuwa River basin in Fukui Prefecture Japan, the largest-ever flood since hydrological observations began, occurred on 18 July 2004. The severe rainfall front in the middle of July brought a heavy rainfall of 265 mm in six hours. The urban ...
TACHIKAWA Yasuto, SAYAMA Takahiro, TAKARA Kaoru, MATSUURA Hideki, YAMAZAKI Tomoya, YAMAJI Akihiko, MICHIHIRO Yuri
Journal of Japan Society for Natural Disaster Science   26(2) 189-201   Aug 2007
A real-time distributed runoff forecasting system is developed for the Yodo River basin (7, 281km^2). The system provides 6 hrs-ahead river discharge predictions every hour. The predictions include river discharges at 1, 707 points located about 3...
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会論文集 B   63(2) 92-107   Jul 2007
SAYAMA Takahiro, TATSUMI Keiko, TACHIKAWA Yasuto, TAKARA Kaoru
JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   20(3) 214-225   May 2007
This paper proposes a hydrograph separation method based on spatiotemporal record of stream flow in a distributed rainfall-runoff model. It simulates spatiotemporal rainwater movement in a catchment, considering relationship between rainfall and r...
NAKAGAWA HAJIME, SATOFUKA YOSHIFUMI, OISHI SATORU, MUTO YASUNORI, SAYAMA TAKAHIRO, TAKARA KAORU, SHARMA RAJ HARI
京都大学防災研究所年報(CD-ROM)   (50) ROMBUNNO.50B,65   Apr 2007
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, HIRATA TOMOYUKI, TAKARA KAORU
京都大学防災研究所年報(CD-ROM)   (50) ROMBUNNO.50B,1   Apr 2007
MINH NHAT Le, 立川 康人, 佐山 敬洋
京都大学防災研究所年報   (51) 63-73   2007
Takahiro Sayama, Yasuto Tachikawa, Kaoru Takara, Yutaka Ichikawa
IAHS-AISH Publication   303 371-381   Jul 2006   [Refereed]
This paper presents hydrological predictions and flood safety assessment in a flow regulated basin with multi-purpose dams. A distributed rainfall-runoff prediction system is developed by incorporating a dam reservoir operation model into a physic...
APIP, TACHIKAWA Yasuto, SAYAMA Takahiro, TAKARA Kaoru
京都大学防災研究所年報   (51) 103-118   2007
TACHIKAWA YASUTO, SAYAMA TAKAHIRO, KANI YOSHIAKI, TAKARA KAORU, MATSUURA HIDEKI, YAMAZAKI TOMOYA
京都大学防災研究所年報(CD-ROM)   (49) NO.49B,13-26   Apr 2006
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
京都大学防災研究所年報(CD-ROM)   (49) NO.49B,27-43   Apr 2006
KOBAYASHI KEN'ICHIRO, TACHIKAWA YASUTO, SAYAMA TAKAHIRO, TAKARA KAORU
水工学論文集(CD-ROM)   50 ROMBUNNO.053   Feb 2006
SAYAMA TAKAHIRO, KANNO HIROKI, TACHIKAWA YASUTO, TAKARA KAORU
水工学論文集(CD-ROM)   50 ROMBUNNO.101   Feb 2006
Y. Tachikawa, R. Takubo, T. Sayama, K. Takara
Advances in Geosciences Volume 4: Hydrological Science (HS)   89-94   Jan 2006
© 2006 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. On July 18, 2004, the largest-ever flood since the hydrologic observation began at a catchment occurred at the Asuwa River basin in Fukui Prefecture, Japan. The severe rainfa...
APIP, 佐山 敬洋, 立川 康人
京都大学防災研究所年報   (50) 79-94   2006
佐山 敬洋, 立川 康人, 平田 智行, 寶 馨
京都大学防災研究所年報   (50) 1-14   2006
Yasuto Tachikawa, Roshan K. Shrestha, Takahiro Sayama
IAHS-AISH Publication   301 78-86   Dec 2005   [Refereed]
NHAT Le minh, 立川 康人, 佐山 敬洋
京都大学防災研究所年報   (50) 33-43   2006
中川 一, 里深 好文, 大石 哲, 武藤 裕則, 佐山 敬洋, 寶 馨, シャルマ ラジハリ
京都大学防災研究所年報   (50) 623-634   2006
SAYAMA TAKAHIRO, KANNO HIROKI, TACHIKAWA YASUTO, TAKARA KAORU
京都大学防災研究所年報   (48B) 15-24   Nov 2005
TACHIKAWA YASUTO, TAKUBO RYOICHI, SAYAMA TAKAHIRO, TAKARA KAORU
京都大学防災研究所年報   (48B) 1-13   Nov 2005
SAYAMA Takahiro, TACHIKAWA Yasuto, TAKARA Kaoru, ICHIKAWA Yutaka
土木学会論文集 = Proceedings of JSCE   (803) 13-27   Nov 2005
SAYAMA Takahiro, TACHIKAWA Yasuto, TAKARA Kaoru
土木学会論文集 = Proceedings of JSCE   (803) 1-11   Nov 2005
SAYAMA Takahiro, TACHIKAWA Yasuto, TAKARA Kaoru
土木学会論文集 = Proceedings of JSCE   (789) 1-13   May 2005
OISHI SATORU, SAYAMA TAKAHIRO, NAKAGAWA HAJIME, SATOFUKA YOSHIFUMI, MUTO YASUNORI, SISINGGIH D, SUNADA KENGO
水工学論文集   49(2) 1087-1092   Feb 2005
SAYAMA Takahiro, TACHIKAWA Yasuto, TAKARA Kaoru, ICHIKAWA Yutaka
Doboku Gakkai Ronbunshu   2005(803) 13-27   2005
This paper presents the development of a distributed rainfall-runoff prediction system considering flood control by dam reservoirs in the Yodo River basin. The simulation results show that the system can reproduce quantitatively flood control proc...
佐山 敬洋, 立川 康人, 寶 馨
京都大学防災研究所年報   (49) 27-43   2005
立川 康人, 佐山 敬洋, 可児 良昭, 宝 馨, 松浦 秀起, 山崎 友也
京都大学防災研究所年報   (49) 13-26   2005
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
京都大学防災研究所年報   (47B) 211-226   Nov 2004
Shrestha Roshan K., 佐山 敬洋, 立川 康人
京都大学防災研究所年報   (48) 43-51   2004
立川 康人, 田窪 遼一, 佐山 敬洋, 寶 馨
京都大学防災研究所年報   (48) 1-13   2004
佐山 敬洋, 菅野 浩樹, 立川 康人
京都大学防災研究所年報   (48) 15-24   2004

Misc

 
佐山敬洋, 本間基寛, 竹之内健介, 大西正光, 矢守克也
2018年平成30年7月豪雨災害調査報告書   96‐98,1(3)   2019
矢守克也, 竹之内健介, 大西正光, 佐山敬洋, 本間基寛
2018年平成30年7月豪雨災害調査報告書   91‐92   2019
竹之内健介, 大西正光, 佐山敬洋, 本間基寛, 矢守克也
2018年平成30年7月豪雨災害調査報告書   99‐100,1(3)   2019
佐山敬洋
2018年平成30年7月豪雨災害調査報告書   22‐26   2019
本間基寛, 佐山敬洋, 竹之内健介, 大西正光, 矢守克也
2018年平成30年7月豪雨災害調査報告書   93‐95   2019
SAYAMA Takahiro
JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   30(3) 183-184   2017
<p>&emsp;「これから5年・10年先までの研究テーマをどうみつけたか?」という問いかけに対して,素人発想の着想法で見いだせること,見いだせないことを考えてみた.</p>
仲江川 敏之, 山中 勤, 横尾 善之, 松山 洋, 徳永 朋祥, 田中丸 治哉, 林 武司, 石田 祐宣, 陸 旻皎, 勝山 正則, 佐山 敬洋
水文・水資源学会誌 = Journal of Japan Society of Hydrology & Water Resources   31(2) 122-124   Mar 2018
寶 馨, Riaz Saima, 佐々 恭二, 佐山 敬洋
RUDGS : 研究成果報告書   57-60   2016
Kuribayashi Daisuke, Sayama Takahiro, Konjya Atsuhiko, Nakamura Yosuke, Kudo Shun, Sawano Hisaya
Proceeding of Annual Conference   28(0)    2015
The Public Works Research Institute has been improving a runoff-inundation model, namely &ldquo;RRI model.&rdquo; This study verified the applicability of the RRI model for the Aganogawa River in Niigata prefecture, which was the first opportun...
USHIYAMA TOMOKI, SAYAMA TAKAHIRO, IWAMI YOICHI
日本気象学会大会講演予稿集   (107) 387   Apr 2015
佐山 敬洋, 岩見 洋一
土木技術資料 = Civil engineering journal : 土木技術の総合情報誌   56(6) 18-21   Jun 2014
山敷 庸亮, 小林 健一郎, 松本 拓, 佐山 敬洋, 寶 馨
京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B   52(0) 77-82   Jun 2009
Biwa-3D Model, consisted with Hydrodynamic components featuring non-hydrostatic solver with Semi-lagrangian grid scheme and ecological components for nutrients and phytoplankton solver has been integrated with distributed hydrological modeling sys...
Sayama Takahiro, Tachikawa Yasuto, Hirata Tomoyuki, Takara Kaoru
Proceeding of Annual Conference   20(0) 22-22   2007
As a data assimilation method of a distributed rainfall-runoff flood prediction system and river discharge observation data, this study proposes a filtering method of Muskingum Cunge river routing models. Application of the conventional Kalman fil...
小林 健一郎, 寶 馨, 立川 康人, 佐山 敬洋
京都大学防災研究所年報. C = Disaster Prevention Research Institute annuals. C   49(0) 155-162   Apr 2006
This paper analyzes the Yuragawa river flood by Typhoon No.23 on 19-22 October 2004 which brought the large number of casualties and loss of asset especially at the downstream region of the Yuragawa catchment. First, the discharge-hydrograph at Fu...
シュレスタ ローシャン クマール, 佐山 敬洋, 立川 康人, 寶 馨
京都大学防災研究所年報. B = Disaster Prevention Research Institute annuals. B   48(0) 43-51   Apr 2005
This study tested the disaggregated rainfall field as the input field for hydrological simulation of various sub-catchments of the Yodo River. The multiplicative random cascade (RC) method (based on the beta lognormal model), the multiplicative ra...

Books etc

 
Runoff Prediction in Ungauged Basins (Ch. 2, Process realism: Flow paths and storage)
SAYAMA Takahiro (Part:Contributor)
Cambridge Press   2013   

Conference Activities & Talks

 
佐山敬洋, 松本紘治, 寳馨
日本気象学会大会講演予稿集   30 Apr 2018   
冨樫冴佳, 佐山敬洋, 山崎大, 寶馨
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   25 Apr 2018   
山本浩大, 佐山敬洋, APIP, 寶馨
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   25 Apr 2018   
Ushiyama Tomoki, Sayama Takahiro, Iwami Yoichi
Proceeding of Annual Conference   2016   
Torrential rainfall frequently occurred resulted in flood disaster in recent years. To prevent flood disaster, we are developing flood forecasting system with leadtime of more than 12 hours. We utilize regional ensemble prediction system to accoun...
Mohamed RASMY, IWAMI Yoichi, Sayama Takahiro, LAWFORD Peter, KOIKE Toshio
Proceeding of Annual Conference   2016   
In this research, we have developed a model,&nbsp;Water and Energy Balance based Rainfall-Runoff-Inundation (WEB-RRI) model, by coupling the Simple Biosphere Model-2 (SiB2) with Rainfall-Runoff-Inundation (RRI) model which uses two-dimensional dif...
USHIYAMA TOMOKI, SAYAMA TAKAHIRO, IWAMI YOICHI, MIYOSHI KENSEI
日本気象学会大会講演予稿集   Oct 2013   
USHIYAMA TOMOKI, SAYAMA TAKAHIRO, FUJIOKA SUSUMU, TATEBE YUYA, FUKAMI KAZUHIKO, MIYOSHI KENSEI
日本気象学会大会講演予稿集   30 Apr 2013   
SAYAMA TAKAHIRO, KOSUGI KEN'ICHIRO
日本森林学会大会学術講演集(CD-ROM)   25 Mar 2013   
USHIYAMA TOMOKI, MUHAMMAD ATIF RANA, SAYAMA TAKAHIRO, TATEBE YUYA, FUJIOKA SUSUMU, FUKAMI KAZUHIKO
日本気象学会大会講演予稿集   30 Sep 2012   
SAYAMA TAKAHIRO, TATEBE YUYA, FUJIOKA SUSUMU, USHIYAMA TOMOKI, YOROZUYA ATSUHIRO, TANAKA SHIGENOBU
土木学会年次学術講演会講演概要集(CD-ROM)   1 Aug 2012   
TATEBE YUYA, SAYAMA TAKAHIRO, TANAKA SHIGENOBU, ARAKI KAZUHIRO, YONESE YOSHITOMO, TAKAHASHI NORIHITO, OKAMINE NATSUMI
土木学会年次学術講演会講演概要集(CD-ROM)   1 Aug 2012   
佐山 敬洋
大ダム : 国際大ダム会議日本国内委員会会誌 = Journal of the Japanese National Committee on Large Dams   25 Jul 2012   
KOSHIDA TOMOKI, MIURA YUJI, SAYAMA TAKAHIRO, FUJIOKA SUSUMU
日本気象学会大会講演予稿集   30 Apr 2012   
USHIYAMA TOMOKI, SAYAMA TAKAHIRO, FUKAMI KAZUHIKO
土木学会年次学術講演会講演概要集(CD-ROM)   5 Aug 2011   
SAYAMA TAKAHIRO, NABESAKA SEIJI, FUKAMI KAZUHIKO
土木学会年次学術講演会講演概要集(CD-ROM)   5 Aug 2011   
R. Tsubaki, Y. Kawahara, I. Fujita, T. Sayama
34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering   1 Jan 2011   
© 34th IAHR Congress 2011. All rights reserved. Embankments on a floodplain, usually treated as solid walls in inundation simulation, retain the potential to be damaged during severe flood events. The breakage of the road or railway embankment sys...
KOBAYASHI KEN'ICHIRO, TAKARA KAORU, SAYAMA TAKAHIRO, TAKEUCHI YUKIKO
日本自然災害学会学術講演会講演概要集   2010   
SUZUKI TAKUYA, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   26 May 2007   
KANNO HIROKI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   26 May 2007   
SAHARA MASASHI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   26 May 2007   
HIRATA TOMOYUKI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   26 May 2007   
TACHIKAWA YASUHITO, SAHARA MASAFUMI, SAYAMA TAKAHIRO, TAKARA KAORU
日本自然災害学会学術講演会講演概要集   2007   
SAYAMA TAKAHIRO, TACHIKAWA YASUHITO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   1 Sep 2006   
TATSUMI KEIKO, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   18 Jun 2006   
MASUDA AMIKA, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   18 Jun 2006   
KANI YOSHIAKI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   18 Jun 2006   
Kroyanagi Tsuyoshi, Kozan Osamu, Sayama Takahiro, Magome Jun, Matsuo Naoko, Yoshimura Kei
Proceeding of Annual Conference   2006   
広範かつ複雑に絡み合う現実社会の問題を解決するには,分野を越えた知識・経験が必要であるが,専門化された研究体制の中でそれを得るのは難しい.そこで本グループは異分野交流の場を提供し,枠にとらわれない問題解決へのアプローチができる資質を得ること,社会への還元をより意識した研究活動に取り組む姿勢を共有すること等を目指して2003年に結成された(通称カンピオーネ).時間的・社会的制約が少ない若手の特権を生かし,失敗を恐れない実験的な活動を積極的に行うことで,現実社会にとって本当に必要とされている新...
Sayama Takahiro, Tatsumi Keiko, Tachikawa Yasuto, Takara Kaoru
Proceeding of Annual Conference   2006   
対象地点を流れる水が,いつ・どこに降った雨水で構成しているのかをモデル上で再現するアルゴリズムを開発する。提案する雨水の時空間履歴追跡手法の目的は,流量ハイドログラフを雨水の生起時刻に応じて分離すること,空間的な起源に応じて分離すること,さらにその両者を併せて時空間的な起源に応じて分離することである。この手法を不飽和・飽和地中流・表面流を考慮する分布型流出モデルに適用する。
TAKARA KAORU, TACHIKAWA YASUTO, NAKAGAWA HAJIME, TANAKA KENJI, SAYAMA TAKAHIRO, KO SHIN, OISHI SATOSHI, TANI MAKOTO
研究領域「水の循環系モデリングと利用システム」第3回領域シンポジウム(平成15年度採択研究課題中間シンポジウム、平成13年度採択研究課題終了シンポジウム)講演要旨集 平成18年   2006   
TAKUBO RYOUCHI, TACHIKAWA YASUHITO, SAYAMA KEIYO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   20 Aug 2005   
HIRATA TOMOYUKI, SAYAMA KEIYO, TACHIKAWA YASUHITO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   20 Aug 2005   
SAYAMA KEIYO, TACHIKAWA YASUHITO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   20 Aug 2005   
KANNO HIROKI, SAYAMA TAKAHIRO, TACHIKAWA YASUHITO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   20 Aug 2005   
TATSUMI KEIKO, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   29 May 2005   
KANNO HIROKI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   29 May 2005   
HIRATA TOMOYUKI, SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   29 May 2005   
TAKUBO RYOUCHI, TACHIKAWA YASUTO, TAKARA KAORU, SAYAMA TAKAHIRO
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   29 May 2005   
KANI YOSHIAKI, TAKARA KAORU, TACHIKAWA YASUTO, SAYAMA TAKAHIRO
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   May 2005   
SAYAMA TAKAHIRO, TACHIKAWA YASUTO, TAKARA KAORU
土木学会関西支部年次学術講演会講演概要集(CD-ROM)   May 2005   
TACHIKAWA YASUTO, SAYAMA TAKAHIRO, TAKARA KAORU
日本水環境学会シンポジウム講演集   13 Sep 2004   
SAYAMA TAKAHIRO, TACHIKAWA YASUHITO, TAKARA KAORU
土木学会年次学術講演会講演概要集(CD-ROM)   1 Sep 2004   
SAYAMA KEIYO, TAKARA KAORU, TACHIKAWA YASUHITO
土木学会年次学術講演会講演概要集(CD-ROM)   1 Sep 2003   
SAYAMA TAKAHIRO, TAKARA KAORU, TACHIKAWA YASUHITO, NAKAYAMA DAICHI
土木学会年次学術講演会講演概要集 第2部   1 Sep 2001   
SAYAMA TAKAHIRO, DAN KAZUHIDE
土木学会年次学術講演会講演概要集 第2部   1 Aug 1999   
SAYAMA TAKAHIRO, DAN KAZUHIDE
土木学会関西支部年次学術講演会講演概要   22 May 1999   

Research Grants & Projects

 
Effective of deforestation in Sumatra island in Indonesia on hydrologic cycle at the river basin scale including downstream wetlandTechnology
JSPS: Grant-in-Aid for Scientific Research (B) (Foreign)
Project Year: 2017 - 2021    Investigator(s): Takahiro Sayama
Real-time hazard mapping with local flooding information on Information and Communication Technology
JSPS: Grant-in-Aid for Scientific Research (B)
Project Year: 2015 - 2019    Investigator(s): Takahiro Sayama
モービルマッピングシステムによる浸水深分布計測に関する研究
River Foundation: River Fund
Project Year: 2016 - 2018    Investigator(s): Takahiro Sayama
自治体向けリアルタイム浸水ハザードマッピング実現に向けた共通プラットフォームの開発
MEXT: 地球環境情報プラットフォーム構築推進プログラム基幹アプリケーションFS
Project Year: 2016 - 2017    Investigator(s): Takahiro Sayama
良質で安全な水の持続的な供給を実現するための山体地下水資源開発技術の構築
JST: CREST
Project Year: 2011 - 2017    Investigator(s): Ken'ichiro Kosugi