last modified：2024/04/19
Associate Professor SAKATA Yoshitaka
Faculty, Affiliation
Faculty of Geosciences and civil Engineering,Institute of Science and Engineering Faculty of Geosciences and Civil Engineering, Institute of Science and Engineering
Associate Professor
College and School Educational Field
Division of Environmental Engineering Design, Graduate School of Natural Science and Technology
Division of Environmental Design, Graduate School of Natural Science and Technology
School of Geosciences and Civil Engineering, College of Science and Engineering
Laboratory
Geotechnical Engineering Laboratory TEL:076-234-4625
Academic Background
【Degree】
Doctoral (Science)
Career
Year & Month of Birth
Academic Society
JAPAN SOCIETY OF CIVIL ENGINEERS
Japanese Geotechnical Society
JAPANESE ASSOCIATION OF GROUNDWATER HYDROLOGY
Journal of Geothernal Research of Japan
The International Association of Hydrogeologists
Award
○Paper Award(2021/10)
○JSCE GEE Award(2020/09)
○Best Poster Award for Hydrological Sciences Section(2014/07)
Specialities
Geoenvironemntal engineering、Thermal engineering、Groundwater Hydrology
Speciality Keywords
Earth Resource Engineering,Environmental Geology,Groundwater Hydrology,Geostatistics,Hydraulic conductivity,Ground heat,Groundwater,Hydrogeology
Research Themes
Stadarization of database for shallow geothermal energy unilization based on numerical realizations of urbant thermal environments underground.
Evaluating shallow geothermal utilization considering global trends in energy-economics under the climate change
Study on planning, designing and optimized operation for 5th-generation district heating by using large-scale geothermal utilization
Development and standarization of methodology for estimating apparent thermal conductivity, cost-effective thermal response test and integrated design tool
Books
- Yoshitaka Sakata Introduction to Kriging for Probabilistic Approach to Spatial Data Estimation 2021/03
- Publication Committee for,dslides induced by the,Hokkaido Eastern,Iburi Earthquake Landslides induced by the 2018 Hokkaido Eastern Iburi Earthquake 2020/09
Papers
- Estimation of effective thermal conductivities according to multi-layers by thermal response test with a set of fiber optics in a U-tube Yoshitaka Sakata Journal of JSCE 72 3 50 2016/09
- Development of low cost & high efficiency GSHP system and its design & evaluation method Part-3 Construction of geologic and hydrologic database for mapping potential of subsurface geothermal use Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 2015 93 2016
- Estimate of river seepage by conditioning downward groundwater flow in the Toyohira River alluvial fan, Japan Yoshitaka Sakata,Gur Baran,Teruhiko Suzuki,Kazuhisa A. Chikita HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES 61 7 1280 2016
- Heat as a Tracer for Examining Depth-Decaying Permeability in Gravel Deposits Yoshitaka Sakata Groundwater 53 S1 21 2015/04
- Field Analysis of Stepwise Effective Thermal Conductivity along a Borehole Heat Exchanger under Artificial Conditions of Groundwater Flow Yoshitaka Sakata,Takao Katsura,Katsunori Nagano,Manabu Ishizuka Hydrology 4 2 21 2017/03/29
- Fluvial Sediment Transport in a Forested Catchment Inluenced by Slope Failure M.Hossain,Kazuhisa A Chikita,Yoshitaka Sakata,Takuto Miyamoto International Journal of Geology, Agriculture and Environmental Sciences 3 6 37 2015/12
- Multilayer-concept thermal response test: Measurement and analysis methodologies with a case study Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Geothermics 71 178 2018/01
- Groundwater leakage and river runoff in a catchment influenced by tectonic movement Md Motaleb Hossain,Kazuhisa A. Chikita,Yoshitaka Sakata,Takuto Miyamoto,Yasuhiro Ochiai Open Journal of Modern Hydrology 5 32 2015/04
- Regional efficiency analysis of ground source heat pump systems with geo-property database Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of JSCE, Ser. G (Environmental Research) 73 5 I-89 2017/09
- A microgrid comprising an interconnected solid oxide fuel cell and hydraulic generator for use in a sustainable city Shin’ya Obara,Katsunori Nagano,Jorge Morel,Takao Katsura,Yoshitaka Sakata,Kazushige Kikuta Bulletin of the JSME Mechanical Engineering Journal 4 2 1 2017/04
- Regional Mapping of Vertical Hydraulic Gradient Using Uncertain Well Data: A Case Study of the Toyohira River Alluvial Fan, Japan Yoshitaka Sakata,Ryuji Ikeda Journal of Water Resource and Protection 5 8 823 2013/08
- Geostatistical Reservoir Modeling of Trending Heterogeneity Specified in Focused Recharge Zone: A Case Study of Toyohira River Alluvial Fan, Sapporo, Japan Yoshitaka Sakata
- A distribution model of permeability derived from undisturbed gravelly samples in alluvial fan Yoshitaka Sakata Japanese Geotechnical Journal 6 1 109 2011/03
- REGIONAL REGRESSION ANALYSIS OF DROUGHT RIVER DISCHARGES IN SNOWY COLD AREAS UNDER CLIMATE CHANGE Yoshitaka Sakata Journal of JSCE 72 5 253 2017/02
- Loading processes of major ions in a forested catchment; Observations and modeling Takuto Miyamoto,Kazuhisa A. Chikita,Yoshitaka Sakata,Yasunori Ochiai,Md Motaleb Hossain,Hideo Ohyagi,Isao Kudo Journal of Japanese Association of Hydrological Sciences 46 1 39 2016/04
- An efficient method to determine borehole heat exchangers for ground source heat pump systems with three-dimensional geologic and hydrogeologic database Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 2016 137 2016
- Development of low cost & high efficiency GSHP system and its design & evaluation method Part 1 Outline of the research project and first year's achievement Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 2015 85 2016
- Analysis of partially penetrating slug tests in a stratified formation by alternating piezometer and tube methods Yoshitaka Sakata,Toshikazu Imai,Ryuji Ikeda,Makoto Nishigaki JOURNAL OF HYDROLOGY 528 385 2015/09
- Water and heat budgets in a coastal lagoon controlled by groundwater outflow to the ocean Kazuhisa A. Chikita,Hiroyuki Uyehara,Abdullah Al Mamun,Georg Umgiesser,Wataru Iwasaka,Md Motaleb Hossain,Yoshitaka Sakata Limnology 16 3 149 2015/08
- Depth dependence and exponential models of permeability in alluvial-fan gravel deposits Yoshitaka Sakata,Ryuji Ikeda Hydrogeology Journal 21 4 773 2013/06
- Quantification of Longitudinal River Discharge and Leakage in an Alluvial Fan by Synoptic Survey Using Handheld ADV Yoshitaka Sakata,Ryuji Ikeda Journal of Japan Society of Hydrology & Water Resources 25 2 89 2012/03
- Development of a probability-based geoinformation system using water well database: kriging estimation of soil/rock types with local parameter settings Yoshitaka Sakata,Takao KATSURA,Katsunori NAGANO,Atsunao MARUI Journal of Groundwater Hydrology 59 2 105 2017/06
- A Study on Estimation of Ground Effective Thermal Conductivity as Probability-Weighted Average Yoshitaka Sakata,Takao KATSURA,Katsunori NAGANO Journal of Geothermal Research Society of Japan 40 1 33 2018/01
- Development of a probability-based geoinformation system using water well database part II: evaluation of an averaged hydraulic conductivity as a probability-weighted average Yoshitaka Sakata,Takao Katsura,Katsunori Nagano,Atsunao Marui Journal of Groundwater Hydrology 60 3 273 2018/09
- Thermo-hydraulic performance of the U-tube borehole heat exchanger with a novel oval cross-section: Numerical approach Ahmed A. Serageldin,Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Energy Conversion and Management 177 406 2018/12
- Evaluating Groundwater Flow Effects for Enhancement of Ground-Source Heat Pipes in the Case of the Toyohira River Alluvial Fan, Japan Yoshikata Sakata,Johnson Chishimba,Masataka Mochizuki,Katsunori Nagano Hydrology 8 3 135 2021/09
- Performance enhancement of borehole ground source heat pump using single U-tube heat exchanger with a novel oval cross-section (SUO) and a novel spacer Ahmed A. Serageldin,Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Sustainable Energy Technologies and Assessments 42 100805 2020/12
- Evaluating variability of ground thermal conductivity within a steep site by history matching underground distributed temperatures from thermal response tests Yoshitaka Sakata,Takao Katsura,Ahmed A. Serageldin,Katsunori Nagano,Motoaki Ooe Energies 14 7 1872 2021/03/28
- A New Simulation Model for Vertical Spiral Ground Heat Exchangers Combining Cylindrical Source Model and Capacity Resistance Model Takao Katsura,Takashi Higashitani,Yuzhi Fang,Yoshitaka Sakata,Katsunori Nagano,Hitoshi Akai,Motoaki OE Energies 13 6 1339 2020/03/13
- Estimation of fast groundwater flow velocity from thermal response test results Hobyung Chae,Katsunori Nagano,Yoshitaka Sakata,Takao Katsura,Takeshi Kondo Energy and Buildings 206 109571 2020/01
- Potential utilization of ground source heat pump systems in Hokkaido Island Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of Natural Energy Research 13 17 2019/06
- Stratigraphy of the upper Pleistocene to Holocene boring in the Kita Ward, Sapporo, Japan; Geologic time of the Sapporo fan deposits, and sea level of the MIS 5a Tsumoru Sagayama,Yukio Izima,Satoshi Okamura,Yoshitaka Sakata General Geology 4 1 9 2020/10
- Development of Simulation Tool for Ground Source Heat Pump Systems Influenced by Ground Surface Takao Katsura,Yoshitaka Sakata,Lan Ding,Katsunori Nagan Energies 13 17 4491 2020/09
- Calculation method of temperature response function of ground heat exchangers field with groundwater flow using artificial neural network regression model 45 279 11 2020/06
- The Effect of Groundwater Flow on the Thermal Performance of a Novel Borehole Heat Exchanger for Ground Source Heat Pump Systems: Small Scale Experiments and Numerical Simulation Ahmed A. Serageldin,Ali Radwan,Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Energies 13 6 1418 2020/03/18
- Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan Kazuhisa Chikita,Yasuhiro Ochiai,Hideo Oyagi,Yoshitaka Sakata Hydrology 6 1 4 2019/01/06
- Nation-Scale Evaluation of CO2 Emission Reduction by Ground Source Heat Pump Systems as a Case Study of Heating in a Residence Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of JSCE, Ser. G (Environmental Research) 74 5 I_359 2018/08
- Estimation of ground thermal conductivity through indicator kriging: Nation-scale application and vertical profile analysis in Japan Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Geothermics 88 101881 2020/11
- 500 M-GRIDDED ESTIMATION OF REQUIRED LENGHS FOR A CLOSED-TYPE BOREHOLE HEAT EXCHANGER IN A GROUND-SOURCE HEAT PUMP SYSTEM Yoshitaka SAKATA,Takao KATSURA,Katsunori NAGANO Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 75 5 I_177 2019/08
- A numerical experiment of parameter inversion methods in groundwater simulation with an indicator for an agreement of hydraulic heads at all nodes Yoshitaka Sakata,Shoji Iwanaga Journal of JSCE B1 75 2 I_1231 2019/10
- A Study on Size Determination of Ground Heat Exchangers in Closed-type Ground Source Heat Pump System: Simulation-based individual Determination and its Nationwide Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of Geothermal Research Society of Japan 41 3 75 2019/07
- A design and simulation tool for ground source heat pump system using energy piles with large diameter Takao Katsura,Katsunori Nagano,Yohitaka Sakata,Hisashi Wakayama International Journal of Energy Research 43 4 1505 2019/03/25
- ANALYSIS OF PRESENT SITUATIONS AND DECISION FACTORS FOR INSTALLATION OF GROUND SOURCE HEAT PUMP SYSTEMS IN LOCAL GOVERMENTS OF JAPAN BY INQUIRY SURVEYING Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76 5 I_197 2020/09
- Nationwide determination of required total lengths of multiple borehole heat exchangers under variable climate and geology in Japan Yoshitaka Sakata,Takao Katsura,Katsunori Nagano International Journal of Geo-information 10 4 205 2021/04
- Vertical trend analysis of equivalent hydraulic conductivity in alluvial fan gravel deposits considering open void connectivity Yoshitaka Sakata Hydrological Research Letters 13 1 7 2019
- Importance of Groundwater Flow on Life Cycle Costs of a Household Ground Heat Pump System in Japan Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 35 4 89 2018/12
- Life-cycle-cost based analysis of borehole heat exchanger lengths considering groundwater flow effects in a residence as a case study Yoshitaka Sakata,Takao Katsura,Katsunori Nagano Journal of Groundwater Hydrology 60 4 483 2018/12
- Development of design and performance prediction tool for ground source heat pump system with variable water volume and variable refrigerant flow Takao Katsura,Yasushi Nakamura,Katsunori Nagano,Yoshitaka Sakata Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 35 4 313 2018/12
- Analysis of relaxation time of temperature in thermal response test for design of borehole size Hobyung Chae,Katsunori Nagano,Takao Katsura,Yoshitaka Sakata,Ahmed A. Serageldin,Takeshi Kondo Energies 13 1 2020/06
- Parametric analysis, response surface, sensitivity analysis, and optimization of a novel spiral-double ground heat exchanger Ahmed A. Serageldin,Ali Radwan,Takao Katsura,Yoshitaka Sakata,Shigeyuki Nagansaka,Nagano Katsunori Energy Conversion and Management 240 15 114251 2021/07
- Method for calculation of ground temperature in scenario involving multiple ground heat exchangers considering groundwater advection Takao Katsura,Yutaka Shoji,Yoshitaka Sakata,Katsunori Nagano Energy and Buildings 220 110000 2020/08
- Nation-scale availability potential of ground source heat pump systems in a case study of Osaka area Yoshitaka Sakata Journal of Ground Water Technology 59 2,3,4 41 2018/03
- Life cycle cost analysis of ground source heat pump system based on multilayer thermal response test Hobyung Chae,Katsunori Nagano,Takao Katsura,Yoshitaka Sakata,Ahmed A. Serageldin Energy and Building 261 111427 2022/04
- An Experimental Analysis of Injection Well Clogging for Shallow Geothermal Utilization Over Multiple Years of Operation Yoshitaka SAKATA, Shun OKIHARA, Hideki SATO, Norihisa MATSUURA, Katsunori NAGANO Journal of the Geothermal Research Society of Japan 46 2 2024
Conference Presentations
Others
Arts and Fieldwork
Patent
Theme to the desired joint research
Grant-in-Aid for Scientific Research
Competitive research funding,Contribution
Collaborative research,Consignment study
Classes (Bachelors)
○Geotechnical and Foundation Engineering A(2021)
Classes (Graduate Schools)
○Exercise in Civil Engineering(2021)
○Design and Management in Geotechnical and Earthquake Engineering(2021)