KIYOSHI KAWANISHI

Last Updated :2022/12/01

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor (Special Appointment)
E-mail
kiyosihiroshima-u.ac.jp
Other Contact Details
1-4-1,Kagamiyama,Higashi-Hiroshima, Japan
TEL : (+81)824-24-7817 FAX : (+81)824-24-7817

Basic Information

Academic Degrees

  • Doctor of Engineering, Hiroshima University
  • Master of Engineering, Hiroshima University

In Charge of Primary Major Programs

  • Civil and Environmental Engineering

Research Fields

  • Engineering;Civil engineering;Hydraulic engineering

Research Keywords

  • estuary
  • tidal river
  • acoustic tomography
  • river discharge
  • sediment transport
  • turbulence
  • suspended sediment
  • suspended particles
  • turbidity

Educational Activity

Course in Charge

  1. 2022, Graduate Education (Master's Program) , 1Term, Special Exercises on Civil and Environmental Engineering A
  2. 2022, Graduate Education (Master's Program) , 2Term, Special Exercises on Civil and Environmental Engineering A
  3. 2022, Graduate Education (Master's Program) , 3Term, Special Exercises on Civil and Environmental Engineering B
  4. 2022, Graduate Education (Master's Program) , 4Term, Special Exercises on Civil and Environmental Engineering B
  5. 2022, Graduate Education (Master's Program) , Academic Year, Special Study on Civil and Environmental Engineering
  6. 2022, Graduate Education (Master's Program) , 4Term, Management of Natural Disasters
  7. 2022, Graduate Education (Doctoral Program) , Academic Year, Special Study on Civil and Environmental Engineering

Research Activities

Academic Papers

  1. ★, Long-term measurement of stream flow and salinity in a tidal river by the use of the fluvial acoustic tomography system, JOURNAL OF HYDROLOGY, 380(1-2), 74-81, 20100115
  2. Signal post-processing for acoustic velocimeters: detecting and replacing spikes, MEASUREMENT SCIENCE & TECHNOLOGY, 22(12), 201112
  3. ★, Continuous measurements of flow rate in a shallow gravel-bed river by a new acoustic system, WATER RESOURCES RESEARCH, 48, 20120524
  4. Turbulence characteristics in the bottom layer of a shallow tidal channel, JOURNAL OF TURBULENCE, 13(52), 1-22, 2012
  5. Continuous monitoring of a dam flush in a shallow river using two crossing ultrasonic transmission lines, MEASUREMENT SCIENCE & TECHNOLOGY, 24(5), 201305
  6. An acoustic travel time method for continuous velocity monitoring in shallow tidal streams, WATER RESOURCES RESEARCH, 49(8), 4885-4899, 201308
  7. DETERMINATION OF LIGHT SHEET THICKNESS IN PIV, Journal of Flow Visualizaion and Image Processing, 2(3), 259-266, 19950401
  8. Settling and rising velocity of a spherical particle in homogeneous turbulence, Annual Journal of Hydraulic Engineering= JSCE, 43, 779-784, 19990401
  9. Hydraulic features in an oyster culture ground of Hiroshima Bay, Bulletin of Fisheries and Environment of Inland Sea, 39-43, 19990401
  10. Three-Dimensional Numerical Simulation of Turlulent Flow in an Oyster Culture Ground, Bulletin on Coastal Oceanograkhy, 37(2), 119-126, 20000401
  11. Settling and rising velocityof a spherical particle in homogeneous turbulenc, Ann. J. Hydraul. Engneering= JSCE, 43, 779-784, 19990201
  12. Monitoring suspended particulate matter with acoustic Doppler velocimeter and profiler in nearshore waters, 3rd ICHD, 303-308, 19981001
  13. ★, Characteristics of suspended sediment and turbulence in a tidal boundary layer, Continental Shelf Res., 17(8), 859-875, 19970201
  14. Vertical structures of tidal flow in shallow coastal seas, 2nd ICHD, 603-611, 19961001
  15. Determination of the Light Sheet Thickness in PIV, J. Flow Visual. and Image, 2, 259-266, 19950301
  16. Mean and turbulent flows in a single-flood plain open channel, Ann. J. Hydraul. Engneering= JSCE, 39, 753-760, 19950201
  17. On the behaviour of vortical structures in a single-flood plain open channel, J. Visual. Soc. Japan, 14(55), 47-57, 19941001
  18. Turbulent Flow in a Single-Flood Plain Open Channel, 1st ICHD, 603-611, 19941001
  19. The Mechanism of Flow Interaction in a Single-Flood Plain Open Channel, 266-269, 19940901
  20. Instantaneous Characteristics of Separated Flow in a Sudden Expanded Open Channel, 192-195, 19940901
  21. ★, Mean and turbulence characteristics in a tidal river, Estuar.= Coast. Shelf Sci., 38(5), 447-469, 19940401
  22. ★, Measurements of turbulence and suspended sediment in tidal river, J. Hydraul. Engrg.= ASCE, 119(6), 704-724, 19930601
  23. ★, An instantaneous 3-D analysis of turbulent flow in the wake of a hemisphere, Boundary-Layer Meteorol., 64(1/2), 1-14, 19930401
  24. The unsteady flow structure behind a back-facing step in an open channel, J. Hydrosci. and Hydraul. Engineering, 9(2), 27-35, 19920101
  25. Evaluation of M-Y closure model in tidal estuary with turbulence data from high-resolution current profiler, WITpress, 6, 101-110, 20030601
  26. High resolution measurements of mean and turbulent velocity in tidal boundary-layer, ICHD2002, 459-464, 20020401
  27. ★, Structure of Turbulent Flow in a Shallow Tidal Estuary, Journal of Hydraulic Engineering= ASCE, 130(4), 360-370, 20040401
  28. Behaviour of suspended sediment in a shallow tidal estuary, Sixth International Conference on Hydrodynamics, 213-218, 20041101
  29. Sediment transport in a shallow tidal estuary, Proceedings of International Conference on Civil and Environmental Engineering 2004, 269-274, 20040701
  30. Influence of tidal range and river discharge on transport of suspended sediment in the Ohta flood-way, J. Hydroscience and Hydraulic Engineering, 24(1), 1-9, 20060201
  31. Variability of tidal current, density stratification and tidal flat sediment in a tidal river, Environmental Problems in Coastal Regions VI= WIT Press, 6, 129-138, 20060601
  32. Measurement of settling velocity of heavy particles in open channel flows using an acoustic doppler velocimeter, XXXI IAHR CONGRESS, 2, 5444-5453, 20050901
  33. Transport processes of suspended sediment in a tidal river, 200702
  34. ★, Turbulent effects on the settling velocity of suspended sediment, Journal of Hydraulic Engineering-ASCE, 134(2), 261-266, 20080201
  35. Transverse propagation characteristics of sound and measurement of cross-sectional average velocity in tidal river with a next-generation acoustic velocity meter, 52, 937-942, 20080201
  36. Transport characteristics of salt water and SPM in the Ohtagawa diversion channel, 52, 1321-1326, 20080201
  37. Measurement of suspended sediment on tidal flat with an acoustic Doppler current profiler, 52, 949-954, 20080201
  38. Observation of effect of wind on sediment transport in Ohtagawa estuary, 55, 386-390, 20081101
  39. Measurement of freshwater discharge in an estuary by acoustic tomography, 55, 1466-1470, 20081101
  40. Transport characteristics of suspended sediment on mud flat in a tidal channel, 16th Congress of IAHR-APD, 3, 810-814, 20081020
  41. Measurement of cross-sectional average velocity in a shallow tidal river with a next-generation acoustic velocity meter, 16th Congress of IAHR-ISHS, 5, 1973-1977, 20081020
  42. Effects of wind on salinity intrusion and sediment transport in Ohtagawa Estuary, 54, 401-405, 20071101
  43. Mean rise velocity of light particles in turbulence, 54, 396-400, 20071101
  44. Measurement of concentration and size of suspended sediment using an acoustic Doppler velocimeter, 32nd Congress of IAHR, No.378 CD-ROM, 20070601
  45. The motion of suspended particles in cellular flow, 32nd Congress of IAHR, No.482 CD-ROM, 20070601
  46. Discharge estimation in tidal rivers with partially reverse flow, 32nd Congress of IAHR, No.491 CD-ROM, 20070601
  47. Flow and sediment transport on a tidal flat in a tidal river, ICCEE 2007, 07P21 CD-ROM, 20071011
  48. Variability characteristics of physical properties in a tidal flat in the Ota River, ICCEE 2007, 07P21 CD-ROM, 20071011
  49. Application of the isovel contours in discharge estimation of a V-shaped open channel, ICCEE 2006, 161-172, 20060928
  50. Suspended Sediment Transport During a Winter in Ohta Floodway, ICCEE 2008, 08F17 CD-ROM, 20081009
  51. Effect of tidal range and river discharge on density stratification and transport amount of suspended sediment in an estuary, 53, 321-325, 20061101
  52. Measurement of concentration and size of suspended sediment using an acoustic Doppler velocimeter, 53, 1401-1405, 20061101
  53. Characteristics of suspended sediment transport and variability of tidal flat sediment in a tidal river, International Conference on Coastal Engineering 2006, 3, 2945-2955, 20060901
  54. Observation of turbulence characteristics in the Ōta river using ADV and HRCP, Annual Journal of Hydraulic Engineering, 54, 211-216, 20100201
  55. New acoustic system for continuous measurement of river discharge and water temperature, Water Science and Engineering, 3(1), 47-55, 20100301
  56. Continuous monitoring of water discharge, temperature, and salinity in a tidal spillway using fluvial acoustic tomography system, Journal of Hydrology New Zealand, 49(2), 61-68, 20101201
  57. Observation of water discharge in a tidal river using an innovative methodology/technology, The 9th International Conference on Civil and Environmental Engineering, 3.8, 20101101
  58. Preliminary findings of SPM size in the Ota Floodway, The 9th International Conference on Civil and Environmental Engineering, 3.18, 20101101
  59. Turbulence structure in bottom layer of a tidal estuary, 5th International Conference on Fluvial Hydraulics, 99-104, 20100901
  60. Observation of suspended sediment and turbulence characteristics in a tidal estuary, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research, 4a011, 20100201
  61. An innovative methodology/technology for streamflow observation, 5th International Conference on Fluvial Hydraulics, 1741-1748, 20100901
  62. Continuous monitoring of water discharge, temperature, and salinity in a tidal river with a new acoustic tomography system, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research, 1a030, 20100201
  63. Mean and variance of suspended particles vertical velocity in turbulent flow, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research, 3a027, 20100201
  64. ★, Structure of turbulent flow in a shallow tidal estuary, JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 130(4), 360-370, 200404
  65. ★, Turbulent effects on the settling velocity of suspended sediment, JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 134(2), 261-266, 200802
  66. Discharge Estimation by the Aid of Isovel Contours in a Tidal River with Partially Reverse Flow, INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, 7(2), 99-108, 200906
  67. Acoustic measurements of streamflow and water temperature in a mountain river,, ISEH 2014, 29-32, 20140107
  68. An application of a shallow acoustic tomography: Continuous monitoring of streamflow and water temperature in a mountain river, UA 2013, 1, 539-546, 20130626
  69. Continuous velocity measurement with travel-time method in stratified shallow flows, UA 2013, 1, 555-562, 20130626
  70. Variability in salt flux and water circulation in the Ota Estuary, Meas. Sci. Technol., 6(3), 283-295, 20130327
  71. Acoustic investigations of unsteady salinity intrusion in a diversion channel, Proc. 2nd International Conference and Exhibition on Underwater Acoustics (UA2014), 1, 101-108, 20140622
  72. Monitoring flow rate and salinity intrusion in a tidal floodway using fluvial acoustic tomography, Proc.The 36th IAHR World Congress, 20150628
  73. Energy flux measurement of tidal stream in a strait using two crossing ultrasonic transmission lines, Proc. The 36th IAHR World Congress, 20150628
  74. Experimental investigations of settling and raise velocity of suspended particles in turbulent flows, Journal of Applied Mechanics JSCE, 13, 821-828, 201008
  75. Tide-driven controls on maximum near-bed floc size in a tidal estuary, Journal of Hydro-environment Research, 9(3), 465-471, 20150901
  76. Acoustic investigations of tidal bores in Qiantang River, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 71(4), 139-144, 20150220
  77. ★, Application of acoustic tomography to reconstruct the horizontal flow velocity field in a shallow river, Water Resources Research, 51(12), 9665-9678, 20151217
  78. Gauging River Discharge with an Emerging Hydroacoustic Equipment, Proc. ICCEE 2015, 79-80, 20151108
  79. ★, High-frequency streamflow acquisition and bed level/flow angle estimates in a mountainous river using shallow-water acoustic tomography, Hydrological Processes, 30(13), 2247-2254, 20160223
  80. Depth-Averaged Flow Reconstruction in an Extremely Shallow Estuary, Proc. 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science, 20160310
  81. Preliminary results of applying a shallow acoustic tomography system to monitor tidal currents in Grand Passage, Nova Scotia, Proc. 50th CMOS Congress & joint CGU Annual Meeting Monitoring of and Adapting to Extreme Events and Long-Term Variations, 20160529
  82. Application of an Innovative Acoustic Tomography System in Shallow Waters, The 2015 IEEE/OES Eleventh Current, Waves and Turbulence Measurement Workshop (CWTM 2015), 141024-019, 20150305
  83. Application of shallow-water acoustic tomography to measure flow direction and river discharge, Flow Measurement and Instrumentation, 51, 30-39, 20160824
  84. Multipath propagation of sound in a shallow tidal channel and its implications on tomographic current measurements, 5th joint ASA/ASJ meeting, 104(4), 3184-3184, 20161128
  85. Monitoring Tidal Bores using Acoustic Tomography System, JOURNAL OF COASTAL RESEARCH, 33(1), 96-104, 20170117
  86. Investigation of flow velocity and salinity behaviour in ota river estuary using acoustic tomography method and numerical modeling, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 73(4), 1033-1038, 20170220
  87. A mountainous river flow fluctuation analysis using shallow-water acoustic tomography system, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 73(4), 19-24, 20170220
  88. Estimation of suspended sediment concentration by acoustic tomography system, Proc.20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research, 20160829
  89. Gauging river discharge with acoustic tomography system, Proc. 20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research, 20160829
  90. Scaling characteristics of mountainous river flow fluctuations determined using a shallow-water acoustic tomography system, Physica A: Statistical Mechanics and its Applications, 484, 11-20, 20171015
  91. A novel hydro-acoustic system for automatically, permanently collecting real-time river flow data, 37th World Congress of the International Association for Hydro Environment Engineering & Research, 3, 5504-5511, 20170814
  92. Monitoring of continuous tidal current pattern in asymmetric bifurcation channel network using acoustic tomography method and numerical modeling, Proc. 37th World Congress of the International Association for Hydro Environment Engineering & Research, 2, 3222-3230, 20170814
  93. Streamflow Dynamics of a Gravel-Bed River During Artificial Dam Flush, Proc. 2017 International Conference on Engineering, Technology, and Applied Science-Fall Session, 36-49, 20171107
  94. Automated real-time streamflow acquisition in a mountainous river using acoustic tomography, Journal of Hydrologic Engineering, 23(2), 04017059-1-04017059-7, 201802
  95. Streamflow distribution and salinity behavior in branch of a tidal river, Proc. International Conference on Civil and Environmental Engineering, ICCEE-2017, 1-6, 20171112
  96. Monitoring unsteady streamflow-stage hysteresis behavior of a gravel-bed river, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 74(4), 313-318, 20180220
  97. Novel high-frequency acoustic monitoring of streamflow-turbidity dynamics in a gravel-bed river during artificial dam flush, Catena, 172, 738-752, 20180924
  98. Temporal variability of discharge rating curve in a gravel-bed river, ICCADP 2018 (2018 International Conference on Civil, Architecture and Disaster Prevention), 1-5, 20181101
  99. Water surface slope and streamflow hysteresis patterns according to different hydrological floods, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 74(5), 181-186, 20181101
  100. Characteristics of tidal discharge and phase difference at a tidal channel junction investigated using the fluvial acoustic tomography system, Water, 11(4), 857-877, 20190424
  101. Continuous streamflow monitoring in shared watersheds using advanced underwater acoustic tomography system: a case study on Zayanderud River, ENVIRONMENTAL MONITORING AND ASSESSMENT, 191(11), 201911
  102. Suspended particulate matter concentration in response to tidal hydrodynamics in a long mesotidal floodway, ESTUARINE COASTAL AND SHELF SCIENCE, 233, 20200205
  103. nvestigation of fine structures in stage-discharge relations based on high-frequency streamflow time series in a gravel-bed river, River Flow 2020, 1-8, 20200706
  104. Temporal variability of discharge rating curve investigated using shallow-water acoustic tomography, 22nd IAHR-APD Congress 2020, 20200915
  105. Analyzing hydroacoustic signals to measure the streamflow of a shallow mountainous river, 22nd IAHR-APD Congress 2020, 20200915
  106. Numerical modeling of secondary flow in meandering estuarine river, 22nd IAHR-APD Congress 2020, 20200914
  107. Measuring low flowrates of a shallow mountainous river within restricted site conditions and the characteristics of acoustic arrival times within low flows, Water Resources Management, 34(10), 3059-3078, 20200718
  108. Assessment of mountain river streamflow patterns and flood events using information and complexity measures, Journal of Hydrology, 590(11), 125508-125521, 20200907
  109. Suspended particulate matter concentration in response to tidal hydrodynamics in a long mesotidal floodway, Estuarine, Coastal and Shelf Science, 233(2), 106525-106544
  110. Mapping tidal current and salinity at a shallow tidal channel junction using the fluvial acoustic tomography system, Estuarine, Coastal and Shelf Science, 258(8), 107440-107454, 20210803

Invited Lecture, Oral Presentation, Poster Presentation

  1. Water surface slope and streamflow hysteresis patterns according to different hydrological floods, Mohamad Basel AlSawaf, Kiyosi Kawanisi, Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic Engineering), 2018/11/26, Without Invitation, English, Japan Society of Civil Engineers, Sapporo
  2. Temporal variability of discharge rating curve in a gravel-bed river, Kiyosi Kawanisi, ICCADP 2018 (2018 International Conference on Civil, Architecture and Disaster Prevention), 2018/11/03, With Invitation, English, School of Civil Engineering of Anhui Jianzhu University and Guangdong Academy of International Academic Exchange, Hefei, China, This paper investigates the temporal variability in stage–discharge relations from unique high-frequency (every 10 minutes) streamflow time series. The time series data have been obtained using a novel acoustic method: fluvial acoustic tomography (FAT) developed by Hiroshima University. In contrast to the traditional point/transect measurements of discharge, the FAT system enables the depth- and range-averaged flow velocity along the ray path to be meas-ured in high temporal resolution. Temporal variations in hydraulic parameters of the rating curve (RC) were examined in addition to the variability of RC. The rapid changes of RC occurred owing to flood events.
  3. Automated real-time streamflow acquisition system using shallow-water acoustic tomography, Kiyoshi Kawanishi, Meeting with NAHRIM (National Hydraulic Research Institute of Malaysia), Ministry of Natural Resources and Environment, 2018/03/05, With Invitation, English, National Hydraulic Research Institute of Malaysia, Jalan Putra, Malaysia
  4. Automated real-time streamflow acquisition system using shallow-water acoustic tomography, Kiyoshi Kawanishi, WCSP Research Group Meeting No 7/2017, 2017/08/16, With Invitation, English, Wireless Communication and Signal Processing (WCSP) Research Group Department of Electrical & Computer Engineering International Islamic University Malaysia, Malaysia
  5. Monitoring unsteady streamflow-stage hysteresis behavior of a gravel-bed river, Mohamad Basel AlSawaf, Kiyosi Kawanisi Mochammad Meddy DANIAL, The 62th Conference on Hydraulic Engineering, JSCE, 2018/03/05, Without Invitation, English, JSCE, Okayama City, The aim of this contribution is to monitor unsteady behavior of streamflow, as well as, loops of stream-flow-stage in a relatively small mountainous river. In order to determine river discharge, two methods were used: (i) the continuous slope area method (CSA), and (ii) the Index Velocity Rating Curve dis-charge data obtained by means of a novel fluvial acoustic tomography system (FATS) which developed by Hiroshima University. The findings showed that during a single hydological event, the temporal varia-tions in water slope has two peaks, and water slope-stage has a positive hysteresis behavior. In addition, streamflow-stage hysteresis loops estimated by FATS are informative more than streamflow-stages esti-mated by the CSA method. Additionally, it was confirmed that stramflow-stage hysteresis loop increases with large-scale rainfall events.
  6. Streamflow distribution and salinity behavior in branch of a tidal river, Shokei KANETOU, Kiyosi KAWANISI Meddy DANIAL Takayuki WAKABAYASHI, International Conference on Civil and Environmental Engineering, ICCEE-2017, 2017/11/13, Without Invitation, English, ICCEE, Tainan, Taiwan
  7. Streamflow Dynamics of a Gravel-Bed River During Artificial Dam Flush, Mohamd Basel AL SAWAF, Kiyosi KAWANISI, 2017 International Conference on Engineering, Technology, and Applied Science-Fall Session, 2017/11/09, Without Invitation, English, ICETA, Kitakyushu, Japan
  8. 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, 37th World Congress of the International Association for Hydro Environment Engineering & Research, 2017/08/17, Without Invitation, English
  9. 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, 2017/08/18, Without Invitation, English, IAHR, Kuala Lumpur, Malaysia
  10. Investigation of flow velocity and salinity behaviour in ota river estuary using acoustic tomography method and numerical modeling, Mochammad Meddy Danial Kiyosi Kawanisi Masoud Bahrainimotlagh Mohamad Basel AlSawaf Takayuki Wakabayashi, JSCE, 2017/03/16, Without Invitation, English
  11. A mountainous river flow fluctuation analysis using shallow-water acoustic tomography system, Mohamad Basel AlSawaf Kiyosi Kawanisi, The 61th Conference on Hydraulic Engineering, JSCE, 2017/03/15, Without Invitation, English, JSCE
  12. Multipath propagation of sound in a shallow tidal channel and its implications on tomographic current measurements, Mahdi Razaz Len Zedel Alex E. Hay Kiyosi Kawanisi, 5th joint ASA/ASJ meeting, 2016/11/30, Without Invitation, English, Acoustical Society of America, Honolulu, Hawaii
  13. Depth-Averaged Flow Reconstruction in an Extremely Shallow Estuary, Mahdi Razaz Kiyosi Kawanisi Ioan Nistor Len Zedel, 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab'16), 2016/03/11, Without Invitation, English, Ottawa, Canada
  14. Preliminary results of applying a shallow acoustic tomography system to monitor tidal currents in Grand Passage, Nova Scotia, Mahdi Razaz Alex Hay Len Zedel Kiyosi Kawanisi, 50th CMOS Congress & joint CGU Annual Meeting Monitoring of and Adapting to Extreme Events and Long-Term Variations, 2016/05/29, Without Invitation, English, CMOS, Fredericton, NB, Canada
  15. A novel hydro-acoustic system for automated streamflow acquisition with high temporal resolution, Kiyosi Kawanisi Mohamad Basel AlSawaf Junya Kagami Mochammad Meddy Danial Shinji Okuda, HydroSenSoft, International Symposium and Exhibition on Hydro-Environment Sensors and Software, 2017/03/01, Without Invitation, English, IAHR, Madrid, Spain
  16. Estimation of suspended sediment concentration by acoustic tomography system, Masoud Bahrainimotlagh Junya Kagami Kiyosi Kawanisi, 20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research, 2016/08/29, Without Invitation, English, IAHR-APD, Colombo, Sri Lanka
  17. Gauging river discharge with acoustic tomography system, Mohamad Basel AlSawaf Junya Kagami Masoud Bahrainimotlagh Kiyosi Kawanisi, 20th Congress of the Asia Pacific Division of the International Association for Hydro Environment Engineering & Research, 2016/08/29, Without Invitation, English, IAHR-APD, Colombo, Sri Lanka
  18. Depth-Averaged Flow Reconstruction in an Extremely Shallow Estuary, Mahdi Razaz, Mahdi Razaz Kiyosi Kawanisi Ioan Nistor Len Zedel, 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab'16), 2016/03/11, Without Invitation, English, Hydro-Environment Engineering and Research (IAHR), Ottawa, Canada, Tomographic techniques have been used to probe ocean currents and temperature for nearly six decades. However, application of such techniques is strongly restricted in the acoustically shallow waters mainly due to the interaction of sound with the stochastic boundaries. The acoustic tomography technique relies on stringent measurements of the time it takes sound pulses to propagate from transmitter to a receiver. To fulfill this requirement in rivers and estuaries, high sound frequencies – above 10 kHz – along with an accurate clock must be used to indicate, keep, and co-ordinate time. Fluvial Acoustic Tomography (FAT) system is a technique/instrument that is able to emit pulses with central frequencies up to 57 kHz and its 10 MHz accurate GPS clock allows accurate measurements of time and frequency. One fascinating application of FAT is 2D flow pattern visualization in shallow waters. Herein, we present an example application of an array of FAT in an extremely shallow tidal channel in conjunction with numerical inversion schemes. Although the salt-wedge intrusion had strong effect on sound propagation patterns which led to a multitude of arrival times, reconstructed flow patterns compared favorably with underway moving-boat ADCP data.
  19. Application of an Innovative Acoustic Tomography System in Shallow Waters, Mahdi Razaz Kiyosi Kawanisi Alex Hay Len Zedel Noriaki Goda, Mahdi Razaz Alex Hay Len Zedel Noriaki Goda, The 2015 IEEE/OES Eleventh Current, Waves and Turbulence Measurement Workshop (CWTM 2015), 2015/03/05, Without Invitation, English, St. Peterosburg, Florida, USA
  20. Gauging River Discharge with an Emerging Hydroacoustic Equipment, Kagami, J., Kawanisi, K., Bahreinimotlagh, M., International Conference on Civil and Environmental Engineering 2015, 2015/11/10, Without Invitation, English, ICCEE, Taiwan
  21. Energy flux measurement of tidal stream in a strait using two crossing ultrasonic transmission lines, Kiyosi Kawanisi, Masoud BahrainiMotlagh Mahdi Razaz, The 36th IAHR World Congress, 2015/06/30, Without Invitation, English, IAHR, The Hague, the Netherlands
  22. Turbulence structure in bottom layer of a tidal estuary, Mahdi Razaz, Kiyosi Kawanisi, 5th International Conference on Fluvial Hydraulics (River Flow 2010), 2010/09/09, Without Invitation, English, The Organizing committee of River Flow 2010, Braunschweig, Germany
  23. An innovative methodology/technology for streamflow observation, Kiyosi Kawanisi, Mahdi Razaz Satoshi Watanabe, 5th International Conference on Fluvial Hydraulics (River Flow 2010), 2010/09/09, Without Invitation, English, The Organizing committee of River Flow 2010, Braunschweig, Germany
  24. Continuous measurement of flood flow and cross-sectional average salinity in the Ota diversion channel with fluvial acoustic tomography, Kiyosi Kawanisi, Mahdi Razaz 渡辺聡 金子新 阿部徹, The 54th Conference on Hydraulic Engineering, 2010/03/04, Without Invitation, Japanese
  25. Observation of turbulence characteristics in the Ōta river using ADV and HRCP, Mahdi Razaz, Kiyosi Kawanisi, The 54th Conference on Hydraulic Engineering, 2010/03/04, Without Invitation, English
  26. Observation of suspended sediment and turbulence characteristics in a tidal estuary, Mahdi Razaz, Kiyoshi Kawanishi Mahmoud F. Maghrebi, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (IAHR-APD 2010), 2010/02/22, Without Invitation, English, IAHR-APD 2010, Auckland, New Zealand
  27. Continuous monitoring of water discharge, temperature, and salinity in a tidal river with a new acoustic tomography system, Satoshi Watanabe, Kiyoshi Kawanishi Arata Kaneko, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research, 2010/02/23, Without Invitation, English, IAHR-APD 2010, Auckland, New Zealand
  28. Mean and variance of suspended particles vertical velocity in turbulent flow, Hitoshi Masuoka, Kiyoshi Kawanishi Peter Nielsen, 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research, 2010/02/23, Without Invitation, English, IAHR-APD 2010, Auckland, New Zealand
  29. The flow and sediment transport in tidal flats of a tidal channel, The 53th Conference on Hydraulic Engineering, 2009/03/06, Without Invitation, Japanese
  30. Continuous monitoring of discharge, water temperature and salinity in and estuary with a next-gereration acoustic velocimeter, The 58th Conference on Hydraulic Engineering, 2009/03/04, Without Invitation, Japanese, JSCE
  31. Turbulent flow in bottom layer of the Ohta river, Mahdi Razaz, Kiyosi Kawanisi Tomoya Yokoyama, The 53th Conference on Hydraulic Engineering, 2009/03/04, Without Invitation, English, JSCE, Tokyo
  32. Continuous monitoring of streamflow and cross-sectional average temperature in a shallow gravel-bed river by fluvial acoustic tomography, K. Ishikawa, Kiyosi Kawanisi Mahdi Razaz J. Yano Mohammad Soltaniasl, The 56th Conference on Hydraulic Engineering, JSCE, 2012/03/07, Without Invitation, Japanese, JSCE, Ehime, Japan
  33. Measuring streamflow and salinity in a tidal estuary with saltwater intrusions, Jyunki Yano, Kiyosi Kawanisi Mahdi Razaz Mohammad Soltaniasl, 4th International Conference on Estuaries and Coasts (ICEC 2012), 2012/10/09, Without Invitation, English, Hanoi, Vietnam
  34. New acoustic system for continuous stramflow measurement in tidal estuaries with saltwater intrusion, Jyunki Yano, Kiyosi Kawanisi Mahdi Razaz, 18th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (IAHR-APD 2012), 2012/08/21, Without Invitation, English, IAHR-APD, Jeju Island, Korea
  35. Salinity transport mechanisms in a small multi-channel estuary, Mohammad Soltaniasl, Kiyosi Kawanisi Mahdi Razaz, 18th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (IAHR-APD 2012), 2012/08/22, Without Invitation, English, IAHR-APD, Jeju Island, Korea
  36. Investigation of salinity variability in a small multi-channel estuary, Mohammad Soltaniasl, Kiyosi Kawanisi Mahdi Razaz, The 56th Conference on Hydraulic Engineering, JSCE, 2012/03/08, Without Invitation, English, JSCE
  37. Measurements of influence of salinity and turbulent motion on floc characteristics in a tidal estuary, Mahdi Razaz, Kiyosi Kawanisi, 18th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (IAHR-APD 2012), 2012/08/22, Without Invitation, English, IAHR-APD, Jeju Island, Korea
  38. Tide-driven controls on maximum near-bed floc size in a partially-mixed estuary, Mahdi Razaz, Kiyosi Kawanisi, 2012/03/07, Without Invitation, English
  39. Investigation of streamflow fluctuations by fluvial acoustic tomography, Kiyosi Kawanisi, Ishikawa, Kazuhiko Mahdi Razaz Yano, Jyunki, 4th International Conference on Estuaries and Coasts (ICEC 2012), 2012/10/09, Without Invitation, English, Hanoi, Vietnam
  40. Investigation of river discharge fluctuations in a shallow gravel-bed river, Kazuhiko Ishikawa, Kiyosi Kawanisi Mahdi Razaz Jyunki Yano, 18th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (IAHR-APD 2012), 2012/08/21, Without Invitation, English, IAHR-APD, Jeju Island, Korea
  41. Continuous measurement of flushing discharge from reservoirs, Masao Ikeda, Kiyosi Kawanisi Mahdi Razaz Ishikawa, Kazuhiko Noriyuki Miyamoto, 4th International Conference on Estuaries and Coasts (ICEC 2012), 2012/10/10, Without Invitation, English, ICEC, Hanoi, Vietnam
  42. Despiking high-resolution ADCP data, Mahdi Razaz, Kiyosi Kawanisi, 2011/03/09, Without Invitation, English, JSCE
  43. River acoustic tomography for continuous measurement of water discharge, Kiyosi Kawanisi, Satoshi Watanabe Arata Kaneko Toru Abe, 3rd International Conference & Exhibition on “Underwater Acoustic Measurements: Technologies & Results (UAM 2009), 2009/06/20, With Invitation, English, Foundation for Research & Technology-Hellas Institute of Applied & Compitational Mathematics, Nafplion, Greece
  44. Acoustic investigations of unsteady salinity intrusion in a diversion channel, Kiyosi Kawanisi, Mahdi Razaz, 2nd International Conference and Exhibition on Underwater Acoustics (UA2014), With Invitation, English, Foundation for Research & Technology-Hellas Institute of Applied & Compitational Mathematics, Rhodes, Greece
  45. An application of a shallow acoustic tomography: Continuous monitoring of streamflow and water temperature in a mountain river, Kiyosi Kawanisi, Kazuhiko Ishikawa, Mahdi Razaz, Junki Yano, 1st International Conference and Exhibition on Underwater Acoustics (UA 2013), With Invitation, English, Foundation for Research & Technology-Hellas Institute of Applied & Compitational Mathematics, Corfu, Greece
  46. Monitoring flow rate and salinity intrusion in a tidal floodway using fluvial acoustic tomography, Kiyosi Kawanisi, Mahdi Razaz Masoud BahrainiMotlagh, The 36th IAHR World Congress, 2015/07/02, Without Invitation, English, IAHR, The Hague, the Netherlands
  47. Acoustic investigations of tidal bores in Qiantang River, Masoud BahreiniMotlagh, Kiyosi Kawanisi Xiao-Hua Zhu, The 58th Conference on Hydraulic Engineering, JSCE, 2015/03/11, Without Invitation, English, JSCE, Tokyo, Japan
  48. Observation of tidal bores in Qiantang River using fluvial acoustic tomography system, Kiyoshi Kawanishi, The 58th Conference on Hydraulic Engineering, JSCE, 2014/03/04, Without Invitation, Japanese, JSCE, Kobe, Japan
  49. Acoustic measurements of streamflow and water temperature in a mountain river, Kiyosi Kawanisi, Kazuhiko Ishikawa Mahdi Razaz, 7th International Symposium on Environmental Hydraulics (ISEH 2014), 2014/01/07, Without Invitation, English, 2014 ISEH VII Organisers, Singapore
  50. Continuous velocity measurement with travel-time method in stratified shallow flows, Mahdi Razaz, Kiyosi Kawanisi Ioan Nistor Collin Rennie, 1st International Conference and Exhibition on Underwater Acoustics (UA 2013), 2013/06/26, With Invitation, English, Foundation for Research & Technology-Hellas Institute of Applied & Compitational Mathematics, Corfu, Greece

Awards

  1. 2017/11/09, Distinguished Paper Award, ICETA, Streamflow Dynamics of a Gravel-Bed River During Artificial Dam Flush

Patented

  1. Patent, JP5555904, 2014/06/13

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI, 2014, 2016
  2. KAKENHI, 2012, 2014
  3. KAKENHI, Validation and establishment of new technology for streamflow measurement using acoustic tomography, 2011, 2013
  4. Adaptable and Seamless Technology transfer Program through targetdriven R&D, 2013/01/01, 2013/12/31
  5. Adaptable and Seamless Technology transfer Program through targetdriven R&D, 2012/08, 2012/12
  6. Adaptable and Seamless Technology transfer Program through targetdriven R&D, 2013/08/01, 2014/03/31
  7. Adaptable and Seamless Technology transfer Program through targetdriven R&D, 2011/08, 2012/03
  8. 2010, 2011
  9. 2009
  10. 2008
  11. 2007, 2007
  12. 2006, 2006
  13. 2006, 2006
  14. 2005, 2005
  15. 2004, 2004
  16. KAKENHI, DYNAMICS OF SUSPENDED SEDIMENT AND VARIABILITY OF TIDAL FLAT SEDIMENT IN A TIDAL RIVER, 2006, 2009
  17. KAKENHI, On the hydraulic and environmental functions of flood defense woods., 1995, 1996
  18. 2007/04, 2008/03
  19. 2012/10, 2014/09
  20. 2009, 2009
  21. 2007, 2007
  22. 2015/10, 2016/10
  23. 2015/08/25, 2016/02/29

Social Activities

History as Peer Reviews of Academic Papers

  1. 2013, Journal of Turbulence, Others, Reviewer, 1
  2. 2013, J. Hydrologic Engineering-ASCE, Others, Reviewer, 1
  3. 2012, J. Hydraulic Engineering-ASCE, Others, Reviewer, 2
  4. 2012, Water Resources Research, Others, Reviewer, 1
  5. 2012, Estuarine, Coastal and Shelf Science, Others, Reviewer, 1
  6. 2012, Applied Mathematical Modelling, Others, Reviewer, 1
  7. 2011, Estuarine, Coastal and Shelf Science, Others, Reviewer, 1
  8. 2011, Water Science and Technology, Others, Reviewer, 1
  9. 2010, J. Hydraulic Engineering-ASCE, Others, Reviewer, 2
  10. 2010, Water Resources Research, Others, Reviewer, 1
  11. 2010, Estuarine, Coastal and Shelf Science, Others, Reviewer, 1
  12. 2010, Sedimentology, Others, Reviewer, 1
  13. 2008, J. Hydraulic Engineering-ASCE, Others, Reviewer, 1
  14. 2007, Advances in Water Resources, Others, Reviewer, 1
  15. 2007, Flow Measurement and Instrumentation, Others, Reviewer, 1
  16. 2007, Marine Geology, Others, Reviewer, 1
  17. 2006, Flow Measurement and Instrumentation, Others