KEIO RESEARCHERS INFORMATION SYSTEM

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Profile 【 Display / hide 】

• YOSHIKI YAMAGATA graduated from the University of Tokyo (PhD in System Science) in 1985. Since 1991, he works at the National Institute for Environmental Studies (NIES). Currently, he is studying about the climate risk management as Principal Researcher of Center for Global Environmental Research (CGER). He is also actively coordinating international project as the Head of Global Carbon Project which is one of core project of Future Earth and nominated as a member of Science Council of Japan (SCJ). He is also afflicted as a visiting scholar at International Institute for Applied Systems Analysis (IIASA, Vienna) and Institute of Statistical Mathematics (ISM, Tokyo). His recent research topics include: Land use scenario analysis, Urban resilience modeling, Urban systems design for smart communities. He has many lecture series at the University of Tokyo, Tsukuba, Hokkaido, Keiko and Sophia university. Internationally, he is serving as Lead author for IPCC (SR/Climate change and land use and AR6/WG3/Urban systems etc.) as well as “Applied Energy” and “Environmental Planning B” as editorial board.

Profile Summary 【 Display / hide 】

Profile Summary 【 Display / hide 】

• Aiming to co-create a future society which address the issues of "environment" and "health", we will develop a new urban system design framework that integrates architecture, transportation, and human behavior in cities. Research topics include: Sustainable future societies, Urban resilience, Zero carbon cities, Bigdata and AI

Other Affiliation 【 Display / hide 】

Other Affiliation 【 Display / hide 】

• The Institute of Statistical Mathematics , Visiting Professor

• Chuo University Research and Development Initiative, Institute Professor（Visiting）

• ＩＩＡＳＡ, Guest Senior Research Scholar

Career 【 Display / hide 】

Career 【 Display / hide 】

• 1985.04

  -

  1991.03

  National Institute for Agro-Environmental Sciences(NIAES), Environmental Management Department , Researcher

• 1991.04

  -

  1999.03

  National Institute for Environmental Studies (NIES), Social and Environmental Systems Research, Senior Researcher

• 1999.04

  -

  2006.03

  National Institute for Environmental Studies (NIES), Center for Global Environmental Reseach, Reseach Director

• 2006.04

  -

  2021.03

  National Institute for Environmental Studies (NIES), Center for Global Environmental Reseach, Senior Researcher

• 2021.04

  -

  Present

  National Institute for Environmental Studies (NIES), Center for Global Environmental Reseach, Visiting Reseacher

Academic Background 【 Display / hide 】

Academic Background 【 Display / hide 】

• 1980.04

  -

  1985.03

  The University of Tokyo, College of Arts and Sciences, Natural Sciences Ⅰ

  University, Graduated

Academic Degrees 【 Display / hide 】

Academic Degrees 【 Display / hide 】

• Doctor(General System Studies), The University of Tokyo, Dissertation, 1998.03

Research Areas 【 Display / hide 】

Research Areas 【 Display / hide 】

• Environmental Science/Agriculture Science / Environmental materials and recycle technology (Sustainable Smart City)

• Environmental Science/Agriculture Science / Sound material-cycle social systems (Sustainable Smart City)

• Environmental Science/Agriculture Science / Environmental dynamic analysis

• Environmental Science/Agriculture Science / Environmental impact assessment

Research Keywords 【 Display / hide 】

Research Keywords 【 Display / hide 】

• Smart City

• Climate-change mitigation

• low-carbon society

• Sustainability

• Urban systems

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Research Themes 【 Display / hide 】

Research Themes 【 Display / hide 】

• 未来社会共創イノベーション研究室では、持続可能な未来社会の実現に向けて、社会課題解決や新たな価値を創造するための分野横断的な社会システムのイノベーションに関する研究に取組みます。, 

  2021.04

  -

  Present

Books 【 Display / hide 】

Books 【 Display / hide 】

• Urban Systems Design

  Yoshiki Yamagata, Takahiro Yoshida, Perry PJ Yang, Helen Chen, Daisuke Murakami, Leena Ilmola, Elsevier, 2020

  Scope: Chapter 12 - Measuring quality of walkable urban environment through experiential modeling

• Urban systems design : creating sustainable smart cities in the Internet of Things era

  Yamagata Y.;Yang, Perry, Elsevier, 2020

• Spatial analysis using big data: Methods and urban applications

  Yamagata Y., Seya H., Spatial Analysis Using Big Data: Methods and Urban Applications, 2019.11

  　View Summary

  Spatial Analysis Using Big Data: Methods and Urban Applications helps readers understand the most powerful, state-of-the-art spatial econometric methods, focusing particularly on urban research problems. The methods represent a cluster of potentially transformational socio-economic modeling tools that allow researchers to capture real-time and high-resolution information to potentially reveal new socioeconomic dynamics within urban populations. Each method, written by leading exponents of the discipline, uses real-time urban big data to solve research problems in spatial science. Urban applications of these methods are provided in unsurpassed depth, with chapters on surface temperature mapping, view value analysis, community clustering and spatial-social networks, among many others.

• Special Report "Climate Change and Land"

  Review Editors, Abdulla A, Noble I, Yamagata Y, Zatari T, IPCC （Intergovernmental Panel on Climate Change）, 2019.08

  Scope: ch.6 “Interlinkages between desertification, land degradation, food security and GHG fluxes: synergies, trade-offs and integrated response options”

• Spatial analysis using big data : methods and urban applications

  Yamagata Y.;Seya S., Academic Press, 2019

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Papers 【 Display / hide 】

Papers 【 Display / hide 】

• Mapping urban carbon emissions in relation to local climate zones: Case of the building sector in Bangkok Metropolitan Administration, Thailand

  D Khamchiangta, Y Yamagata

  Energy and Built Environment (Elsevier)  5 ( 3 ) 337 - 347 2024.06

  Research paper (scientific journal)

  　View Summary

  This study focuses on carbon emissions of the building sector in relation to local climate zone (LCZ) classification, concentrating on two major parts. First, we estimated carbon emissions in the building sector, which were cal- culated for weekdays and weekends real-time daily energy consumption patterns. The estimations were divided into direct (from petroleum products consumption) and indirect emissions (from electricity consumption). Sec- ond, we examined urban carbon emissions mapping in relation to LCZ. Bangkok Metropolitan Administration (BMA) was used as the case study and 2016 as the base year for examination. The results illustrate that indirect emissions in Bangkok can be up to ten times higher than direct emissions. The analysis indicates that LCZ, such as compact high-rise, large low-rise, light industry, and warehouse zones had a relatively higher carbon emission intensity than others. Additionally, we identified that the compact high-rise zone has the highest indirect emission intensity, while the light industry and warehouse zone have the greatest direct emission intensity. These results provide insights into the dynamics of carbon emission characteristics in the building sector and the methodology purported here can be used to support low carbon city planning and policymaking in Bangkok.

• Spatial exploration of rural capital contributing to quality of life and urban-to-rural migration decisions: a case study of Hokuto City, Japan

  Y Takahashi, T Yoshida, S Shigeto, H Kubota, BA Johnson, Y Yamagata

  Sustainability Science (Springer Japan)  19   489 - 506 2024.01

  　View Summary

  Globally, urbanization constitutes one of the major underlying drivers of global ecological degradation. Hence, deurbanization, i.e., demographic shift from urban to distant rural areas in a way that increases quality of life (QoL), can be one of the key pathways to address this global challenge. In this study, we investigated the contribution of nature and other types of rural capital to QoL and to people’s decision to migrate from urban to rural areas by studying residents in Hokuto City, a popular urban-to-rural migration destination in Japan. An integrated analysis of the 414 responses to a questionnaire survey and open and commercial geospatial datasets representing natural, built, human, cultural, and financial capital revealed the contributions of specific elements of rural capital to people’s QoL. These included natural capital (farmland, symbolic natural sites, mountain peak view, lower temperature, and tranquility), built capital (highways, railway stations, shops, and restaurants), and financial capital (employment). Many of these are related to the reasons that migrants, including return and one-way migrants, chose their present home location in Hokuto City, indicating their intention to increase QoL by migration. Particularly, one-way migrant homes were located predominantly on higher up mountain slopes with lower temperatures, higher forest cover, near natural parks, and symbolic natural sites, and yet with easier access to railway stations and employment. These results provide a valuable evidence base for rural spatial planning for increased QoL and attracting migrants that considers ecological–social feedbacks, and hence supports deurbanization.

• Assessment of unutilized woody biomass energy and the cost and greenhouse gas emissions of woody biomass power plants in Hokkaido, Japan

  Ryoga Ono, Yoichiro Fukuda, Masahiko Fujii, Yoshiki Yamagata

  Cleaner Energy Systems (Elsevier)  6   100084 2023.12

• Digital Transformation of Logistic and Maintenance for Water/City-Gas Supply Infrastructures

  Masaaki Hashimoto, Yoshiki Yamagata, Yoshiaki Ohkami

  2023 International Conference on Electrical, Computer and Energy Technologies (IEEE)     1 - 6 2023.11

  　View Summary

  This paper deals with application of cutting-edge information technology represented by Digital Transformation, DX, for maintaining critical infrastructures such as water and city-gas supply systems. Among many stakeholders related to such infrastructure, we have focused on system maintenance for the end-user by focusing on manufacturing, wholesale and retail, logistic, and on-site construction that formulate a very complex System of System. First, this paper describes a successful example of DX application to the water supply system. Second, the approach and means of this example were applied to an obsolete system of a city-gas supply system with successful results in relatively short period of time. In this DX application, there were several issues to overcome during the execution of reformation but finally the goal of this attempt has been attained by improving the process and increasing the profit. This has proven that appropriate application of the DX is useful and provides a powerful tool for improving business. Typical successful results are: 1) Service time has increased to 24 hours a day and 365 days a year. 2) Number of workforce has decreased from 37 to 27, and 3) Number of errors decreased to 1 to 4 out of 200 orders.

• Mapping urban carbon emissions in relation to local climate zones: Case of the building sector in Bangkok Metropolitan Administration, Thailand

  Dararat Khamchiangta, Yoshiki Yamagata

  Energy and Built Environment (Elsevier)   2022.11

  　View Summary

  This study focuses on carbon emissions of the building sector in relation to local climate zone (LCZ) classification, concentrating on two major parts. First, we estimated carbon emissions in the building sector, which were calculated for weekdays and weekends real-time daily energy consumption patterns. The estimations were divided into direct (from petroleum products consumption) and indirect emissions (from electricity consumption). Second, we examined urban carbon emissions mapping in relation to LCZ. Bangkok Metropolitan Administration (BMA) was used as the case study and 2016 as the base year for examination. The results illustrate that indirect emissions in Bangkok can be up to ten times higher than direct emissions. The analysis indicates that LCZ, such as compact high-rise, large low-rise, light industry, and warehouse zones had a relatively higher carbon emission intensity than others …

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Papers, etc., Registered in KOARA 【 Display / hide 】

Papers, etc., Registered in KOARA 【 Display / hide 】

• Research on system design for future society through co-creation in different fields

  Yamagata, Yoshiki

  学事振興資金研究成果実績報告書 (慶應義塾大学)  2022

Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• Carbon analytics for net-zero emissions sustainable cities

  Ramaswami A, Tong K, Canadell J.G, Jackson R.B, Stokes E, Dhakal S, Finch M, Jittrapirom P, Singh N, Yamagata Y, Yewdall E, Yona L, Seto K.C

  Nature Sustainability (Nature Sustainability)   2021

  Other, Joint Work

  • Access to Document (DOI)

• A “Smart Lifestyle” for the re-design of the “After Corona” urban form

  Yamagata Y, Yoshida T

  Environment and Planning B: Urban Analytics and City Science (Environment and Planning B: Urban Analytics and City Science)  47 ( 7 ) 1146 - 1148 2020.09

  Other, Joint Work,  ISSN  23998083

  • Access to Document (DOI)

• Developing sustainable bioenergy systems with local bio-resources: cases in Asia

  Goh C.S, Saito O, Yamagata Y

  Sustainability Science (Sustainability Science)  15 ( 5 ) 1449 - 1453 2020.09

  Other, Joint Work,  ISSN  18624065

  　View Summary

  The concept of sustainability science is paramount to establish a development thinking with deep and thorough considerations of hybridized on-ground realities shaped by the interplay of energy, land, economic, and climatic elements. This special feature intends to engage sustainability science in understanding the role of bioenergy in sustainable development, particularly for cases in East Asia. Especially, it encourages potential works that carefully consider perspectives of different stakeholders, including communicating with both experts and non-experts and integrating knowledge from different disciplines like forestry, social studies, or energy system sciences. It aims to create the context for motivating the society in tackling the sustainability issues related to energy, forest, and society.

  • Access to Document (DOI)

• Corrigendum to ‘Pathway using WUDAPT's Digital Synthetic City tool towards generating urban canopy parameters for multi-scale urban atmospheric modeling’ (Urban Climate (2019) 28, (S2212095519300975), (10.1016/j.uclim.2019.100459))

  Ching J, Aliaga D, Mills G, Masson V, See L, Neophytou M, Middel A, Baklanov A, Ren C, Ng E, Fung J, Wong M, Huang Y, Martilli A, Brousse O, Stewart I, Zhang X, Shehata A, Miao S, Wang X, Wang W, Yamagata Y, Duarte D, Li Y, Feddema J, Bechtel B, Hidalgo J, Roustan Y, Kim Y.S, Simon H, Kropp T, Bruse M, Lindberg F, Grimmond S, Demuzure M, Chen F, Li C, Gonzales-Cruz J, Bornstein B, He Q, Tzu-Ping, Hanna A, Erell E, Tapper N, Mall R.K, Niyogi D

  Urban Climate (Urban Climate)  30 2019.12

  Other, Joint Work,  ISSN  22120955

  　View Summary

  Jason Ching jksching@gmail.com, Dan Aliaga , Gerald Mills , Valery Masson , Linda See , Marina Neophytou , Ariane Middel , Alexander Baklanov , Chao Ren , Ed Ng , Jimmy Fung , Michael Wong , Yuan Huang , Alberto Martilli , Oscar Brousse , Iain Stewart , Xiaowei Zhang , Aly Shehata , Shiguang Miao , Xuemei Wang , Weiwen Wang , Yoshiki Yamagata , Denise Duarte , Luciana Schwandner Ferreira , Yuguo Li , Johan Feddema , Benjamin Bechtel , Julia Hidalgo , Yelva Roustan , YoungSeob Kim , Helge Simon , Tim Kropp , Michael Bruse , Fredrik Lindberg , Sue Grimmond , Matthias Demuzure , Fei Chen , Chen Li , Jorge Gonzales-Cruz , Bob Bornstein , Qiaodong He , Tzu-Ping , Adel Hanna , Evyatar Erell , Nigel Tapper , R.K. Mall , Dev Niyogi Institute for the EnvironmentUNC at Chapel HillNC, United States Department of Computer SciencesPurdue UW, Lafayette, IN, United States School of GeographyUniversity College of DublinDublin, Ireland Meteo France, Toulouse, France IIASA, Laxemburg, Austria Civil and Environmental Engineering, U of Cyprus, Nicosia, Cyprus Arizona State U, Tempe, AZ, United States World Meteorological Organization (WMO), Geneva, Switzerland Hong Kong U, Hong Kong Department of Architecture, CUHK, Hong Kong Hong Kong Science and Technology U, Hong Kong Department of Architecture, SW Jiatong U, Chengdu, China CIEMAT, Madrid, ES, Spain Dept Earth, Environmental Science, KU Leuven, Leuven, Belgium University of Toronto, Canada Department of Computer Sciences, Purdue U, W. Lafayette, IN, United States Institute of Urban Meteorology, Beijing, China Institute Environmental, Climate Research Jinan U, Guangzhou, China National Institute for Environmental Sciences, Tsukuba, Japan School of Architecture, Urbanism, U of São Paulo, Sao Paolo, Brazil Luciana Schwander, U, São Paulo, São Paulo, Brazil Department of Mechanical Engineering, HKU, Hong Kong Department of Geography, U of Victoria, British Columbia, Canada Institute of Geography, U Hamburg, Hamburg, DE, Germany Toulouse Federal U, Toulouse, France CEREA, Joint Laboratory Ecole des Ponts Paris Tech Marne, France Johannes Gutenberg Universitat- Mainz, Mainz, DE, Germany Department of Earth Sciences, U Gothenberg, Goteborg, Sweden Dept of Meteorology, U Reading, Reading, UK K U Leuven, Belgium The authors regret missing the following corrections: The affiliation of Dr. Luciana Schwandner Ferreira should read “School of Architecture and Urbanism, University of São Paulo, Sao Paolo, Brazil and and Dr. Luciana Schwandner Ferreira is the 24th author in the author list. Affiliation for Benjamin Bechtel is “Department of Geography, Ruhr-University Bochum, Bochum, Germany”. The surname of Dr. Matthias Demuzure is “Demuzere”. Affiliation is “Department of Geography, Ruhr-University Bochum, Bochum, Germany”. The authorname “Ed Ng” should be “Edward Ng”. The authorname “Qiaodong He” should be “Xiaodong He” and affiliation is “Institute of Urban Meteorology, CMA, Beijing, China.” Affiliation q should be the same as this affiliation. The authorname “Tzu-Ping” should be “Tzu-Ping Lin”. Affiliation for Nigel Tapper should be “School of Earth, Atmosphere and Environment, Monash University, Melbourne, Australia”. The authorname “Shen Li” to “Li Shen” and his affiliation is ae “Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China”. The affiliation for Yelva Roustan is “CEREA, Joint Laboratory Ecole des Ponts ParisTech – EDF R&D, Champs-Sur-Marne, France”. The affiliation for Youngsoeb Kim is also “CEREA, Joint Laboratory Ecole des Ponts ParisTech – EDF R&D, Champs-Sur-Marne, France”. Miscellaneous within text changes are as follows: (1) Table A2, Please change in first column “Banaras” to “Varanasi”.(2) Paragraph before acknowledgement, “Passive Low Energy Architecture (PLEA)” should read “Passive and Low Energy Architecture (PLEA)”.(3) Correction 1. The word “pana;” in the last sentence of first paragraph to be removed.(4) Correction 2. Fig. 1 caption; change “Rpouse” should read “Rouse”.(5) In Section 3.4, second paragraph, 5th line “APP; and sampling” to be removed.(6) Section 4.1, second para, 5th line. The sentence “In particular, the horizontal axis……range divided” to be removed.(7) Section 4.4, second line, “paradigms” should be replaced with “tools”.The authors would like to apologise for any inconvenience caused. a,⁎ b c d e f g h i j k k l m n o p p q r r s t t u v w x y y z z z aa ab ac ad ae af ag ah ai aj ak al am an a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac

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• Introduction

  Yamagata Y, Seya H

  Spatial Analysis Using Big Data: Methods and Urban Applications (Spatial Analysis Using Big Data: Methods and Urban Applications)     1 - 5 2019.11

  Other, Joint Work,  ISSN  9780128131275

  　View Summary

  Section 1.1 of this chapter introduces the definition of spatial data as the realizations of spatial processes. Three types of spatial data-geostatistical data, lattice data, and spatial point patterns-are defined there. Section 1.2 explains the characteristics of spatial data-spatial autocorrelation (subsection 1.2.1) and spatial heterogeneity (subsection 1.2.2).

  • Access to Document (DOI)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

Research Projects of Competitive Funds, etc. 【 Display / hide 】

• Monitoring the bio-economy in Asia: Impacts, synergies and trade-offs on land-use and carbon stock change

  2017.10

  -

  2020.03

  National Institute for Environmental Studies, Grant-in-Aid for JSPS Fellows, No Setting

  　View Summary

  Bioenergy in Japan: Two papers were recently completed in May and July 2019, respectively, after a few round of internal revisions, with the content mainly based upon (i) a workshop was organised at UNU attended by 35 experts from governments, academia, industries and NGOs and (ii) an international workshop was co-organized by IEA Bioenergy and NEDO in September 2018, which received about 100 international participants. Two papers were recently accepted to be published on Sustainability Science (Springer).
  Bio-economy in Borneo: A paper was recently completed in July 2019, based upon extensive field trips made in Indonesia, Malaysia and Singapore in October 2018, which include multiple interviews and meetings were made with a large number of stakeholders from various background and sectors to investigate the latest development of bio-economy in the region. The paper was submitted in July 2019 to Environmental Development (Elsevier), and then revised after the first round of review. It is currently under the second round of review.
  For the entire period of the fellowship, three (3) papers have been accepted / published in peer-reviewed journals, one (1) were submitted and currently under 2nd round of review, and one (1) book chapter (Springer) which is currently in editing.

• Study on spacial-temporal analysis of ground surface temperature for global warming countermeasures

  2017.04

  -

  2020.03

  The Institute of Statistical Mathematics, Grant-in-Aid for Scientific Research (B), No Setting

  　View Summary

  本研究は、空間的かつ時間的に粒度の異なる計測データを統合的に活用して、大都市圏での地球温暖化対策を実現することを目指し、地表面温度の高度な時空間解析技術の開発に取り組む。低分解能の地上気象観測による気象要素の時系列計測データに加えて、高分解能の人工衛星による地表面温度の時系列計測データを用い、統計解析手法を高度に融合させることによって、これまで捉えられなかった大都市圏における地表面温度分布の時空間変動の高精度な推定方法と、厳しい熱波状況などの極端な極値事象発生に関与する要因の高度な検出方法の開発を行う。将来的に本技術は大都市圏での地球温暖化対策立案に貢献することが期待される。
  当該年度は、クラスタリングとSpatial Best Linear Unbiased Estimator (Spatial-BLUE)を組み合わせた解析を行うことで、熱波状況の背後に潜む分布構造、具体的には期待値、分散、歪度、尖度が異なることを明らかにした。さらに、この結果を発展させて、上記解析のパラメータを、熱波の時空間過程とともに場所毎に推定する方法を新規開発した。ここでは局所空間過程の高速推定手法であるlocal approximate Gaussian process（laGP）とTukey g-and-h （TGH）modelを組み合わせた。それにより、衛星観測熱画像のような高解像度データから、各地の暑熱特性（期待値、分散、歪度、尖度）を現実的な時間スケールで推定することができた。この結果、真夏日の暑熱特性には尖度や歪度といった分布の裾の特徴量が顕著となることがわかった。
  本研究課題については、①高度解析手法の開発、②計測データの収集と観測実験、③地表面温度の高度な時空間解析技術の開発、④熱波状況のシミュレーションと解析実験の四つの検討を実施する計画であった。
  ①については、物理モデルを想定しない場合について、クラスタリングとSpatial Best Linear Unbiased Estimator (Spatial-BLUE)を組み合わせた解析手法を開発した。物理モデルを想定する場合については未着手である。②については、MODISデータ（気象関連）を整備した。③については、上記①の手法、上記②のデータを用いて、熱波状況の背後に潜む分布構造、具体的には期待値、分散、歪度、尖度が異なることを明らかにした。さらに、この結果を発展させて、上記解析のパラメータを、熱波の時空間過程とともに場所毎に推定する方法を新規開発した。ここでは局所空間過程の高速推定手法であるlocal approximate Gaussian process（laGP）とTukey g-and-h （TGH）modelを組み合わせた。④については、上記③の成果をもとに、各地の暑熱特性（期待値、分散、歪度、尖度）を現実的な時間スケールでシミュレーションした。この結果、真夏日の暑熱特性には尖度や歪度といった分布の裾の特徴量が顕著となることがわかった。
  以上、概ね順調に進展していると自己評価する。
  方法と応用の2チーム体制で実施する。方法チームは、前年度に引き続いてモデリングの研究を行って、共変量の組み込みなどによるモデルの洗練化をはかるとともに、キャリブレーションの研究を行う。具体的には、物理モデルを想定する／しない場合に分けてモデリング、キャリブレーションを行う。物理モデルを想定する場合、並列計算効率に優れた局所アンサンブル変換カルマンフィルタなどの高速なデータ同化手法を適用する。物理モデルを想定しない場合には、状態空間モデルの観測、状態方程式は、表現力の優れたノンパラメトリックなガウス過程を用いて表す。計算コストが非常に小さいST-BLUEのアルゴリズムを新たに組み込むことについて検討する。
  また、応用チームは、応用チームは前年度に引き続き計測データの取得・整備、地表面温度の観測実験を行う。
  さらに、方法と応用の両チームとの協働のもと、GCPの海外の主要関連研究者の協力を得て、各種センサーからの計測データを用い、上記高度解析手法を応用して、衛星熱画像を高精度に時空間補間し、地表面温度分布の時空間変動を高精度に推定する方法を開発する。その際、計測データの時空間解像度、種類、精度を反映させた地表面温度分布のモデルを設計する。また、厳しい熱波状況などの極端な極値事象発生に関与する要因を高度に検出する方法を開発する。

• Development of methodology for designinig flood risk informarion dissimination service

  2016.04

  -

  2019.03

  National Institute for Environmental Studies, YAMAGATA YOSHIKI, HIROI Kei, YOSHIDA Takahiro, Grant-in-Aid for Scientific Research (B), No Setting

  　View Summary

  We developed a simulation technique of flood damage risk using geographic information data. The time-period of this study is from September 9, 2015 to 16, including the period of heavy rain in the Kanto and Tohoku regions. We focused on the estimation and reproduction of people's movements during the target period. This study examined a method for estimating spatially detailed evacuation behavior from mobile GPS data whose capture rate is not sufficient (about 1%). And then, we developed a method for spatio-temporal interpolation of the number of people using kernel function. By applying the spatial interpolation method to the actual data of Joso City, Ibaraki prefecture, it was confirmed that the evacuation behavior at the time of flood disaster could be reproduced.

Awards 【 Display / hide 】

Awards 【 Display / hide 】

• 優秀研究発表賞

  吉田 崇紘;山形 与志樹, 2019.11, Center for Spatial information Science, The University of Tokyo, ビッグデータを活用した空間詳細なCO2マッピング

  Type of Award： Award from Japanese society, conference, symposium, etc.

• Best Paper Award of Applied Regional Science Conference

  Hajime SEYA;Yoshiki YAMAGATA, 2013.12, Applied Regional Science Conference, Applying weighted-average least squares estimator to spatial econometric models

  Type of Award： Award from Japanese society, conference, symposium, etc.

• ノーベル平和賞受賞への貢献を証明する感謝状

  IPCC代表執筆者（Lead Author）として, 2008.04, IPCC

  Type of Award： International academic award (Japan or overseas)

• Best Paper Award of Japan Society for Simulation Technology

  山形 与志樹;中村仁也, 2006.06, JAPAN SOCIETY FOR SMILATION TECHNOLOGY, Dynamic Gaming Simulation on the International Climate Regime Formation

  Type of Award： Award from Japanese society, conference, symposium, etc.

• 1998 1st OZE prize

  Yoshiki YAMAGATA, 1998.06, 尾瀬保護財団, 湿原に関する学術研究においてリモートセンシング画像を用いた環境特性を把握する手法の開発

  Type of Award： Award from publisher, newspaper, foundation, etc.

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Other 【 Display / hide 】

Other 【 Display / hide 】

• 2021年05月

  　View Details

  Earthquake Risk Reduction and Residential Land Prices in Tokyo　報告者：河端 瑞貴1、直井 道生2、安田 昌平3(1.慶應義塾大学、2.慶應義塾大学、3.日本大学)　討論者：山形 与志樹 日本経済学会(春季大会)2021年5月15-16日

Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• SUSTAINABLE URBAN SYSTEMS 2

  2025

• SUSTAINABLE URBAN SYSTEMS 1

  2025

• STUDIOS FOR URBAN SYSTEMS DESIGN

  2025

• RESEARCH ON SYSTEM DESIGN AND MANAGEMENT

  2025

• RESEARCH ON PROJECT DESIGN AND MANAGEMENT

  2025

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