Session Program & TimeTable

 

General Time Schedule is here

Preliminary Program

    April 11 (Tue.)
17:00 - 17:15 Opening Ceremony
17:15 - 18:30

Special Lecture
Chair: Masaru ISHII

Lightning Activity in Winter Storms: A Meteorological and Cloud Microphysical Perspective (45min)
 Earle WILLIAMS
Recent Progress in Lightning Electromagnetic Pulse Simulations (30min)
Yoshihiro BABA
19:00- < Welcome Reception >

    April 12 (Wed.)
9:00 -09:30

Invited Lecture - 1
Chair: Takatoshi SHINDO

Self-Initiated and Other-Triggered Negative Upward Lightning Recorded at the Peissenberg Tower in Germany (F. Heidler, Ch. Paul)
Fridolin HEIDLER
09:30 – 10:24

Session 1 :  GC or Large Bipolar Events
Chair:
  Takatoshi SHINDO

Reproduction of Electric Field Waveforms Associated with GC Strokes Hitting Wind Turbines
Mikihisa SAITO; Masaru ISHII
Charge Transfer During Winter GC Lightning Events Observed at Mt. Ogami
Noriyasu HONMA;Yasuji HONGO; Noriyasu SUZUKI;  Takaaki KONNO
 A Large Bipolar Event Recorded at the Saentis Tower
Mohammad AZADIFAR; Gerhard DIENDORFER; Mario PAOLONE; Davide PAVANELLO; Farhad RACHIDI; Vladimir A. RAKOV; Marcos RUBINSTEIN; Wolfgang SCHULZ
10:24 – 10:35 < Break >
10:35 –11:47

Session 2 :  LEMP Analysis – Propagation and Source Estimation
Chair: Akiyoshi TATEMATSU

Application of TL Model for Estimation of Lightning Current Waveforms in Winter
Hiroyuki KANEKO; Naoki ITAMOTO; Kazuo SHINJO
Analysis of the Ground Structure and Conductivity on the Lightning Electric and Magnetic Fields using the 3D-FDTD Method and Electromagnetic Models
Kaddour ARZAG; Zin-Eddine AZZOUZ; Boualem GHEMRI
FDTD Simulation of LEMP Propagation in the Daytime and Nighttime Earth-Ionosphere Waveguides
Thang H. TRAN; Yoshihiro BABA; Vijaya B. SOMU; Vladimir A. RAKOV
Accuracy Verification of Lightning Charge Moment Change Remotely Estimated by ELF Observations using Direct Lightning Charge Masurements at Wind Turbine
Yasuhide HOBARA; Junpei YAMASHITA; Yuma MATSUI; Syun MURAI; Tomomi NARITA; Hiroaki MITSUZUKA
11:47-13:20 < Lunch >
13:20-13:50

Invited Lecture - 2
Chair: Megumu MIKI

High-speed Optical Imaging of Lightning and Sparks: some recent results  (V.A. Rakov, E.A. Mareev, M.D. Tran, Y. Zhu, N.A. Bogatov, A.Yu. Kostinskiy, V.S. Syssoev)
 Vladimir A.RAKOV
13:50-15:02
Session 3: Modeling of lightning discharges
Chair: Megumu MIKI
Avulsion in the Lightning River: Another Look at M-Components
Earle WILLIAMS; Joan MONTANYA; Yakun LIU; James BALES; Robert GOLKA; Mike VALENTE
Energetic Radiation Generated by Winter Tunderstorm and Lightning
Masashi KAMOGAWA; David SMITH; Gregory BOWERS; Shusaku TAKAHASHI
Gamma Radiation in Thunderstorm-generating Lower Electric Field than a Relativistic Runaway Electron Avalanche Hypothesis Expected
Shusaku TAKAHASHI; Gregory BOWERS;David M. SMITH; Atsushi MATSUKI; Masashi KAMOGAWA
A Bi-directionally Distributed Current Sources Model for Tall Object Lightning Return Stroke in Presence of Long Upward Connecting Leader
Luwen CHEN; Weitao LU; Yijun ZHANG; Ying MA
15:02-15:20 < Coffee Break >
15:20 - 15:50

Invited Lecture - 3
Chair: Mikihisa SAITO

Some New Insights into the Lightning Propagation Processes Based on High Resolution VHF and Optical Mapping Technology(X. Qie, R. Jiang, Z. Sun, Y. Pu, Z. Wang, M. Liu, H. Zhang, G. Lu)
 Xiushu QIE
15:50-17:38

Session 4: Observation of Lightning
Chair: Mikihisa SAITO

Characteristics of Chaotic Pulse Trains Associated with Dart and Dart-stepped Leader in Lightning Flashes in Sweden
Mohd Muzafar ISMAIL; Mahbubur RAHMAN; Vernon COORAY; Pasan HETTIARACHCHI; Dalina JOHARI
Wavelet Transform Reveals the Origin of Chaotic Pulse Train in Lightning Flashes
Mohd Muzafar ISMAIL;  Vernon COORAY; Mahbubur RAHMAN; Pasan HETTIARACHI; Dalina JOHARI
Propagating Features of Upward Negative Leaders in the Initial Stage of Rocket-triggered Lightning
Yunjiao PU; Xiushu QIE; Rubin JIANG; Mingyuan LIU; Hongbo ZHANG; Gaopeng LU;, Yanfeng FAN
Characteristics of a Negative Lightning with Multiple-ground Terminations Observed by a VHF Interferometer
Zhuling SUN; Xiushu QIE; Mingyuan LIU; Rubin JIANG; Zhichao WANG; Hongbo ZHANG
Formation of Channel Branching and Zigzagging in Stepped Leader of Negative Cloud-to-ground Lightning
Rubin JIANG; Xiushu QIE; Mingyuan LIU; Hongbo ZHANG; Zhuling SUN; Gaopeng LU
Origin of Difference Between Column- and Carrot-type Sprites During Winter Thunderstorm in Japan
Sumire ONAGI; Tomoyuki SUZUKI; Kennichi KUSUNOKI; Masashi KAMOGAWA
18:30- < Symposium Dinner >

 

    April 13 (Thu.)
09:00-09:30

Invited Lecture - 4
Chair: Masayuki MINOWA

 Lightning Surge Calculation Model of Railway Level Crossing System 
Hideki ARAI
09:30-11:18

Session 5: Lightning Surges
Chair: Masayuki MINOWA

Lightning Protection Measures for Railway Signaling Equipment
Shigeru TAMATANI; Souta UOZAKI
Selecting Fuses as Countermeasures against the Short-circuit Faults of MOVs
Nobuhide INAMI; Tetsuya TOMINAGA; Shinji GOTO; Kazuhiro TAKAYA
FDTD Analysis of the Electric Field of a Lightning-Impulse-Applied Arrester
Alfonse NZENGULA; Ryo MURAKAMI; Yoshihiro BABA; Naoki ITAMOTO
Measurement of Energy Capability of Distribution Surge Arrester after Operation with Lightning Impulse Current
Susumu MATSUURA; Satoshi MORIMATSU; Hiroyuki KADO; Tsukasa MIYAGI
Analysis of Transient Surge Response at Winter Lightning for MOVs, ABDs and TSSs
 Hidetaka SATO
A Study of Shunt Lightning Current Distribution in Nyuzen Wind Turbine
Kazuo YAMAMOTO; Takahiro NAKASHIMA; Shinichi SUMI; Yuta NAITO; Kazuki OBAYASHI
11:18-13:00 < Lunch >
13:00-14:00

Invited Lecture - 5
Chair: Kazuo YAMAMOTO

Prediction of Lightning Incidence to Tall Structures before Construction (A. Smorgonskii, M. Rubinstein, F. Rachidi, G. Diendorfer)
Farhad RACHIDI
Review of Seasonal Variations in Occurrence and Some Current Parameters of Lightning Measured at the Gaisberg Tower
Gerhard DIENDORFER
14:00-15:12

Session 6: Lightning to Tall Structures
Chair
: Kazuo YAMAMOTO

Result of Lightning Observation at Windmills in the Joetsu Area
Harunobu ANDO; Masayuki MINOWA; Yasuo SUZUOKI; Masayuki YODA; Noriyuki IWASAWA
Influence of the 600-m Canton Tower on the Cloud-to-ground Lightning in its Vicinity
Changxiu ZHANG; Weitao LU; Luwen CHEN; Qi QI; Ying MA; Yijun ZHANG
Recent Researches on Tall-object Lightning Flashes in Guangzhou
Weitao LU; Ying MA; Qi QI; Luwen CHEN; Changxiu ZHANG; Zshiguo SU; Yijun ZHANG
Initial Continuous Current in Upward Negative Flash Observed at Tokyo Skytree
Toru MIKI; Mikihisa SAITO; Takatoshi SHINDO; Hideki. MOTOYAMA; Masaru ISHII
15:12-15:30 < Coffee Break >
15:30-16:30

Invited Lecture - 6
Chair: Koichiro MICHIMOTO

Development of Phased Array Weather Radar and its Observation
Tomoo USHIO
Charge Structure of  Winter Thunderstorm in Japan: a Review and an Update (D. Wang, T. Wu, N. Takagi)
Daohong WANG
16:30-17:24

Session 7: Charge Structure of Winter Thunderstorms
Chair: Koichiro MICHIMOTO

An Observation Campaign for Understanding Processes of Active Ice-Phase Production and Electrification in Winter Clouds
Soichiro SUGIMOTO; Tsutomu TAKAHASHI; Kenji SUZUKI; Tetsuya KAWANO; Mitsuharu HIROMARU; Nomura HIRAKUCHI
Evolution of Precipitation Particle Space Charge in Hokuriku Winter Clouds: Videosonde and HYVIS Observations
Tsutomu TAKAHASHI; Soichiro SUGIMOTO
Winter Thunderstorm Charge Distribution at Short-burst Energetic Radiation
Takuma TSURUDA; Shusaku TAKAHASHI; Gregory BOWERS; David SMITH; Masashi KAMOGAWA

 

    April 14 (Fri.)
9:00 -9:30

Invited Lecture - 7
Chair: Noriyasu HONMA

Winter, Moderate and Deep Convection Thunderstorms in Northeastern Spain. Favorable Conditions for the Triggering of Uppward Lightning from Wind Turbines (J. Montanyà, A. Salvador, O. Van der Velde, N. Pineda, F. Fabró, E. Williams, J. A. López)
 Joan MONTANYA
09:30-10:42

Session 8:  Phenomenology of Winter-type Lightning
Chair: Noriyasu HONMA

The Nature of Winter Thunderstorms in the Hokuriku Coastal Area of Japan
Koichiro MICHIMOTO
Statistical Analysis of Facility Damage of Traction Power Supply System Caused by Winter Lightning and Others
Hitoshi HAYASHIYA; Takehiko NAKAMURA; Satoshi AMARI; Shiro SEKISHIMA; Keiji KAWAHARA
Winter Lightning Observation with Broadband Observation Network for Lightning and Thunderstorm
Satoru YOSHIDA; Eiichi YOSHIKAWA; Kenichi KUSUNOKI; Toru ADACHI; Hanako INOUE
Characteristics of Downward Lightning in Winter at the Coast of the Sea of Japan
Megumu MIKI; Toru MIKI; Mikihisa SAITO; Masahito SHIMIZU; Koudai NAGATA; Fukumune SUZUKI; Takeshi MORIMOTO
10:42-10:50 < Break >
10:50-11:20

Invited Lecture - 8
Chair: Daohong WANG

Positive Cloud-to-ground Flashes and the Initiation of Upward Lightning (M. M. F. Saba, C. Schumann, T. A. Warner, M. A. S. Ferro, R. E. Orville)
Marcelo SABA
11:20-11:56

Session 9:  Positive C-G Flashes
Chair: Daohong WANG

Some Features of Preliminary Breakdown Pulses in Positive Ground Flashes in Sweden
Dalina JOHARI; Vernon COORAY; Mahbubur RAHMAN; Pasan HETTIARACHCHI; Mohd Muzafar ISMAIL
Development Characteristics of Downward Positive Leaders in Seven Tall-object Lightning Flashes
Qi QI; Weitao LU; Ying MA; Luwen CHEN; Changxiu ZHANG
11:56-13:30 < Lunch >
13:30-14:00

Invited Lecture - 9
Chair: Yasuhide HOBARA

Close and Distant Electric Fields due to Lightning Attaching to the Gaisberg tower (N. Watanabe, A. Nag, G. Diendorfer, H. Pichler, W. Schulz)
 Amitabh NAG
14:00-14:54

Session 10: Lightning Electromagnetic Fields
Chair: Yasuhide HOBARA

Observations of Electric Field Change and VHF Radiation Pulses from Winter Lightning
Masahito SHIMIZU; Koudai NAGATA; Fukumune SUZUKI; Hiroki TSUJI; Takeshi MORIMOTO; Megumu MIKI
Matching Algorithms of ELF-LEMPs and Lightning Geo-location Data
Daiki TSURUSHIMA; Noriyasu HONMA; Fuminori TSUCHIYA; Mitsuteru SATO; Yukihiro TAKAHASHI
An ELF Band Winter Lightning Observation around Tohoku Region in Japan
Noriyasu SUZUKI; Noriyasu HONMA; Fuminori TSUCHIYA; Takaaki KONNO
14:54-15:20 < Coffee Break >
15:20-15:50

Invited Lecture - 10
Chair: Nobuyuki HONJO

Design and Verification Methods for Wind Turbines, Ensuring Safe Operation During Winter Lightning Exposure
 Søren MADSEN
15:50-16:44

Session 11: Wind Turbines
Chair: Nobuyuki HONJO

Measuring Lightning Currents on Wind Turbines
Josef BIRKL; Edurad SHULZENKO; Fridolin HEIDLER; Gerhard DIENDORFER
Evaluation of Striking Frequency in case of Wind Turbines with Multiple Receptors
Zoltán TÓTH; István KISS
Upward Lightning Attachment Analysis on Wind Turbines and Correlated Crrent Parameters
Stephan VOGEL; Masaru ISHII; Mikihisa SAITO; Daisuke NATSUNO
16:44-17:00 Closing Ceremony

 


Contact Address
E-mail: general@iswl2017.jp