last modified：2025/12/05
Assistant Professor ALSAWAF, Mohamad Basel
Faculty, Affiliation
Faculty of Geosciences and civil Engineering,Institute of Science and Engineering Department of Earth and Social Infrastructure Science
Assistant Professor
College and School Educational Field
Division of Geosciences and Civil Engineering, Graduate School of Natural Science and Technology
School of Geosciences and Civil Engineering, College of Science and Engineering
Laboratory
River and Coastal Engineering TEL: FAX:
Academic Background
【Academic background(Doctoral/Master's Degree)】
Hiroshima University Doctor Graduate School of Engineering 201809
Career
Kanazawa University(2024/10-)
Kitami Institute of Technology Faculty of Engineering Department of Civil and Environmental Engineering Assistant professor(2022/08-2024/09)
Hiroshima University Graduate School of Engineering Assistant Professor(2020/04/01-2022/07/31)
Hiroshima University Graduate School of Engineering researcher(2018/10/01-2020/03/31)
Hiroshima University Graduate school of engineering Research assistant(2015/10-2018/09)
Year & Month of Birth
Academic Society
Japan Society of Civil Engineers, Hydraulic Engineering Committee member
International Association for Hydro-Environment Engineering and Research
Award
○Best Paper Award(2024/05)
○Hiroshima University Excellent Student(2017/12)
○Distinguished paper award(2017/11)
Specialities
Hydraulic engineering
Speciality Keywords
machine learning,Flood risk analysis,Flood analysis,Hydroacoustics,Civil engineering,Big data analysis,Hydraulics,Hydrology,Water resources
Research Themes
Advanced analysis reveals diversity in rainfall patterns
To interpret the diversity and variability of rainfall patterns that have evolved in recent years, we implemented an innovative model to determine whether a rainfall event is extreme or not. Briefly, based on a certain threshold, we encode the dangerous daily rainfall data as 1 or 0, and then group them into words of several bits. The generated words reveal the variability of daily rainfall patterns throughout the year, thereby shedding light on extreme or non-extreme periods and filtering out transitional periods that did not manifest as dangerous events.
Improvement of river flow measurement techniques using tomography
Tomography techniques have proven to be a more effective tool for river flow measurement than traditional methods. By integrating multiple sensors of the FAT system at a river site, we are enhancing the modality of tomography measurements. This integration provides complementary data, such as flow direction and intensity, from various angles, enabling a more comprehensive understanding of river flow. This approach aims to compete with world-class methods such as ADCPs and advance the state-of-the-art in river flow measurement.
High-precision, continuous, and high-resolution flow observation using a river acoustic tomography system
Long-term, continuous, and high-resolution river discharge observations remain a major challenge in river engineering. To address this challenge, we use an advanced measurement tool, the Fluvial Acoustic Tomography (FAT), to investigate river dynamics during extreme events such as floods. Our current research focuses on improving accurate discharge observations in river environments, aiming to provide reliable river discharge records.
Books
Papers
- Streamflow Measurements Using an Underwater Acoustic-Based Approach: A Case Study in a Shallow Narrow Silt-Bed River Mohamad Basel Al Sawaf,Akiyoshi Sasaki,Kazuya Inoue Water 2025/03/13
- Uncertainties in River Flow Measurements Using Acoustic Tomography: Potentials and Challenges Mohamad Basel AlSawaf,Akiyoshi Sasaki,Kazuya Inoue,Satoshi Kusano 2025 IEEE Underwater Technology (UT) 1 2025/03/02
- Mapping knowledge structure and research frontiers of underwater acoustic tomography: a scientometric study Masoud Bahreinimotlagh,Reza Roozbahani,Mohammad Amin Fayz Chakab,Mohamad Basel Al Sawaf,Mortaza Eftekhari,Seyyed Ahmad Sajjadi Marine and Freshwater Research 76 1 2025/01/16
- Examining the Relationship between Rainfall, Runoff, and Turbidity during the Rainy Season in Western Japan Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Masoud Bahreinimotlagh GeoHazards 5 1 176 2024/02/18
- Assessment of flood dynamics in a mountain stream using high-resolution river flow records Cong Xiao,Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Xiao Hua Zhu Hydrological Processes 37 3 2023/03
- Investigating tidal river dynamics in a longitudinally varying channel geometry Gillang Noor Nugrahaning Gusti,Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Faruq Khadami,Cong Xiao CONTINENTAL SHELF RESEARCH 253 2023/01
- Assessment of annual high-discharge patterns in Kapuas River using information and complexity measures Gillang N.N. Gusti,Henny Herawati,Kiyosi Kawanisi,Mohamad B. Al Sawaf,Mochammad M. Danial Journal of Water and Land Development 57 62 2023
- New Insights into Continuous Estimation of Streamflow Direction Using Travel Time Principles Mohamad Basel Al Sawaf,Kiyosi Kawanisi Proceedings of the IAHR World Congress 2398 2023
- Continuous measurement of flow direction and streamflow based on travel time principles using a triangular distribution of acoustic tomography systems Al Sawaf, M.B.,Kawanisi, K.,Gusti, G.N.N.,Khadami, F.,Xiao, C.,Bahreinimotlagh, M. Journal of Hydrology 617 2023
- Applications of travel time principle to measure river flow dynamics using underwater acoustic tomography system Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Faruq Khadami,Gillang Noor Nugrahaning Gusti,Cong Xiao AIP Conference Proceedings 2872 1 2023
- Sensitivity of Junction Width to Tidal Nonlinearity on Small and Shallow Tidal Junction Faruq Khadami,Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Gillang Noor Nugrahaning Gusti Indonesian Journal of Science and Technology 7 2 237 2022
- Subtidal Dynamics in a Tidal River with Limited Discharge Gillang Noor Nugrahaning Gusti,Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Faruq Khadami Water (Switzerland) 14 16 2022/08
- Application of Acoustic tomographic data to the short-term streamflow forecasting using data-driven methods and discrete wavelet transform Yousef Olfatmiri,Masoud Bahreinimotlagh,Ebrahim Jabbari,Kiyosi Kawanisi,AmirHosein Hasanabadi,Mohamad Basel Al Sawaf Journal of Hydrology 609 127739 2022/06
- Monitoring Inflow Dynamics in a Multipurpose Dam Based on Travel-time Principle Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Cong Xiao,Gillang Noor Nugrahaning Gusti,Faruq Khadami Water Resources Management 36 8 2589 2022/05/04
- Spatiotemporal Response of Currents and Mixing to the Interaction of Tides and River Runoff in a Mesotidal Estuary Faruq Khadami,Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Gillang Noor Nugrahaning Gusti,Cong Xiao OCEAN SCIENCE JOURNAL 57 1 37 2022/02
- Characterizing annual flood patterns variation using information and complexity indices Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Cong Xiao SCIENCE OF THE TOTAL ENVIRONMENT 806 151382 2022/02
- Assessment and ranking flood events in a regulated river using information and complexity measures Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Cong Xiao Journal of Physics: Conference Series 2090 1 2021/12/02
- Extent of detection of hidden relationships among different hydrological variables during floods using data-driven models Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Mohamad Nazieh Jlilati,Cong Xiao,Masoud Bahreinimotlagh ENVIRONMENTAL MONITORING AND ASSESSMENT 193 11 2021/11
- Acoustic Monitoring of Tidal Flow and Salinity in a Tidal Channel Hiep Thi Nguyen,Kiyosi Kawanisi,Mohamad Basel Al Sawaf JOURNAL OF MARINE SCIENCE AND ENGINEERING 9 11 2021/11
- Mapping tidal current and salinity at a shallow tidal channel junction using the fluvial acoustic tomography system Cong Xiao,Kiyosi Kawanisi,Ryohei Torigoe,Mohamad Basel Al Sawaf ESTUARINE COASTAL AND SHELF SCIENCE 258 107440 2021/09/05
- Influence of Suspended Sediment Concentration and Particle Sizes on the Sound Attenuation of the Fluvial Acoustic Tomography Technique Masoud Bahreinimotlagh,Kiyosi Kawanisi,Alireza Kavousi,Reza Roozbahani,Mahdi Abbasi,Mohamad Basel Al Sawaf Journal of Water and Environment Technology 18 5 338 2020
- Analyzing hydroacoustic signals to measure the streamflow of a shallow mountainous river Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Masoud Bahreinimotlagh 22nd Congress of the International Association for Hydro-Environment Engineering and Research-Asia Pacific Division, IAHR-APD 2020: "Creating Resilience to Water-Related Challenges" 2020
- Investigation of fine structures in stage-discharge relations based on high-frequency streamflow time series in a gravel-bed river K. Kawanisi,Mohamad Basel Al Sawaf River Flow 2020 - Proceedings of the 10th Conference on Fluvial Hydraulics 1468 2020
- Assessment of mountain river streamflow patterns and flood events using information and complexity measures Mohamad Basel Al Sawaf,Kiyosi Kawanisi JOURNAL OF HYDROLOGY 590 125508 2020/11
- Measuring Low Flowrates of a Shallow Mountainous River Within Restricted Site Conditions and the Characteristics of Acoustic Arrival Times Within Low Flows Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Cong Xiao WATER RESOURCES MANAGEMENT 34 10 3059 2020/08/01
- Suspended particulate matter concentration in response to tidal hydrodynamics in a long mesotidal floodway Cong Xiao,Kiyosi Kawanisi,Mohamad Basel Al Sawaf ESTUARINE COASTAL AND SHELF SCIENCE 233 2020/02/05
- Continuous streamflow monitoring in shared watersheds using advanced underwater acoustic tomography system: a case study on Zayanderud River Masoud Bahreinimotlagh,Kiyosi Kawanisi,Mohammad Basel Al Sawaf,Reza Roozbahani,Mortaza Eftekhari,Abbas Kazemi Khoshuie Environmental Monitoring and Assessment 191 11 2019/11/01
- Characteristics of Tidal Discharge and Phase Difference at a Tidal Channel Junction Investigated Using the Fluvial Acoustic Tomography System Mochammad Meddy Danial,Kiyosi Kawanisi,Mohamad Basel Al Sawaf WATER 11 4 2019/04
- Novel high-frequency acoustic monitoring of streamflow-turbidity dynamics in a gravel-bed river during artificial dam flush Mohamad Basel Al Sawaf,Kiyosi Kawanisi CATENA 172 738 2019/01
- WATER SURFACE SLOPE AND STREAMFLOW HYSTERESIS PATTERNS ACCORDING TO DIFFERENT HYDROLOGICAL FLOODS Mohamad Basel Al Sawaf Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74 5 181 2018/11/01
- Different stakeholders' opinions toward the sustainability of common textile wastewater treatment technologies in Turkey: A Case study Istanbul province Mohamad Basel Al Sawaf,Ferhat Karaca SUSTAINABLE CITIES AND SOCIETY 42 194 2018/10
- Automated Real-Time Streamflow Acquisition in a Mountainous River Using Acoustic Tomography Kiyosi Kawanisi,Mohamad Basel Al Sawaf,Mochammad Meddy Danial JOURNAL OF HYDROLOGIC ENGINEERING 23 2 2018/02/01
- Monitoring of continuous tidal current pattern in asymmetric bifurcation channel network using acoustic tomography method and numerical modeling Mochammad Meddy Danial,Kiyosi Kawanisi,Masoud Bahreinimotlagh,Mohamad Basel Al Sawaf,Junya Kagami Proc. 37th World Congress of the International Association for Hydro Environment Engineering & Research 2 3222 2017/08/14
- A novel hydro-acoustic system for automatically, permanently collecting real-time river flow data Kiyosi Kawanisi,Mohamad Basel Al Sawaf 37th World Congress of the International Association for Hydro Environment Engineering & Research 3 5504 2017/08/14
- Scaling characteristics of mountainous river flow fluctuations determined using a shallow-water acoustic tomography system Mohamad Basel Al Sawaf,Kiyosi Kawanisi,Junya Kagami,Masoud Bahreinimotlagh,Mochammad Meddy Danial PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 484 11 2017/10/15
- Application of shallow-water acoustic tomography to measure flow direction and river discharge Masoud Bahreinimotlagh,Kiyosi Kawanisi,Mochammad Meddy Danial,Mohamad Basel Al Sawaf,Junya Kagami FLOW MEASUREMENT AND INSTRUMENTATION 51 30 2016/10/01
- High-frequency streamflow acquisition and bed level/flow angle estimates in a mountainous river using shallow-water acoustic tomography Kiyosi Kawanisi,Masoud Bahrainimotlagh,Mohamad Basel Al Sawaf,Mahdi Razaz HYDROLOGICAL PROCESSES 30 13 2247 2016/06/30
Conference Presentations
- Investigating rainfall variability in the Okhotsk Region using information-complexity metrics(conference：5th IAHR Young Professionals Congress)(2024/11)
- Beyond the Drops: Decoding the Patterns of Okhotsk Rainfall Using an Advanced Information-Complexity Scheme(conference：Mediterranean Geosciences Union Annual Meeting (MedGU-24))
- Continuous measurement of river flow and flow direction using a new generation of underwater acoustic tomography system(conference：4th IAHR Young Professionals Congress)
- Beyond the Surface: Measuring River Flow Using Acoustic Tomographic System(conference：Euro-Mediterranean Conference for Environmental Integration (EMCEI-24))(2024/05/15)
- Continuous measurement of river flow and flow direction using a new generation of underwater acoustic tomography system(conference：4th IAHRYoungProfessionalsCongress 22-24 Nov2023)(2023/11/23)
- Applications of Travel Time Principle to Measure River Flow Dynamics Using Underwater Acoustic Tomography System(conference：11th International Conference on Mathematical Modeling in Physical Sciences. Virtual. (2022).)(2022/06)
- Analyzing hydroacoustic signals to measure the streamflow of a shallow mountainous river(conference：22nd IAHR-APD Congress, Hokkaido, Japan. (2020))(2020/08)
- Water surface slope and streamflow hysteresis patterns according to different hydrological floods,(conference：第63 回水工学講演会, Sapporo, Japan)(2018/11)
- Ranking flood events in a regulated rivers using information and complexity measures(conference：10th International Conference on Mathematical Modeling in Physical Sciences. Virtual. (2021))(2021/06)
- A gravel-bed river discharge fluctuation detection by a new acoustic travel time method(conference：第21 回応用力学シンポジウム, Nagoya, Japan,)(2018/05)
- Monitoring unsteady streamflow-stage hysteresis behavior of a gravel-bed river(conference：第62 回水工学講演会, Okayama)(2018/03)
- Streamflow Dynamics of a Gravel-Bed River During Artificial Dam Flush,(conference：International Conference on Engineering, Technology, and Applied Science-Fall Session)(2017/11/07)
- A mountainous river flow fluctuation analysis using shallow-water acoustic tomography system(conference：第61 回水工学講演会, Fukuoka)(2017/03)
- Gauging river discharge with acoustic tomography system(conference：20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research, IAHR-APD, Colombo, Sri Lanka.)(2016/08)
- EXAMINING THE ABILITY OF UNDERWATER ACOUSTIC TOMOGRAPHY TO MEASURE STREAMFLOW WITHIN HIGHLY SEDIMENT CONCENTRATIONS(conference：41st IAHR World Congress 22-27 June 2025)(2025/06/22)
- Uncertainties in River Flow Measurements Using Acoustic Tomography: Potentials and Challenges(2025/03/02)
Others
- A MOUNTAINOUS RIVER FLOW FLUCTUATION ANALYSIS USING SHALLOW-WATER ACOUSTIC TOMOGRAPHY SYSTEM AL SAWAF Mohamad Basel,KAWANISI Kiyosi Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73 4 I_19 2017
- IMPROVING THE RESOLUTION OF SHALLOW-RIVER DISCHARGE MEASUREMENT BY DENOISING OUTLIERS USING BINARIZED IMAGE SUBTRACTION FEATURE Mohamad Basel AL SAWAF,KAWANISI Kiyosi,XIAO Cong Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 75 2 I_619 2019
- MONITORING UNSTEADY STREAMFLOW-STAGE HYSTERESIS BEHAVIOR OF A GRAVEL-BED RIVER Mohamad Basel AL SAWAF,KAWANISI Kiyosi,DANIAL Mochammad Meddy Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 62 4 Ⅰ_313 2018
- INVESTIGATION OF FLOW VELOCITY AND SALINITY BEHAVIOUR IN OTA RIVER ESTUARY USING ACOUSTIC TOMOGRAPHY METHOD AND NUMERICAL MODELING DANIAL Mochammad Meddy,KAWANISI Kiyosi,MOTLAGH Masoud Bahraini,Al SAWAF Mohamad Basel,WAKABAYASHI Takayuki Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73 4 I_1033 2017
- MONITORING UNSTEADY STREAMFLOW-STAGE HYSTERESIS BEHAVIOR OF A GRAVEL-BED RIVER Mohamad Basel AL SAWAF,KAWANISI Kiyosi,DANIAL Mochammad Meddy Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74 4 I_313 2018
Arts and Fieldwork
Patent
Theme to the desired joint research
Grant-in-Aid for Scientific Research
○「 Developing an innovative hydroacoustics system for river discharge monitoring and investigating watershed characteristics during torrential floods」(2021-2024)