International workshop on dispersion and deposition modeling for nuclear accident releases

-Transfer of science from academic to operational models-

 

 

 

 

1. Scope

Numerical models have played a significant role in investigating the total amount and the transport pathway for radio nuclides discharged from the Fukushima Daiichi Nuclear Power Plant after The 2011 Great East Japan Earthquake. However, recent studies of dispersion and deposition processes of radionuclides have revealed that there are many uncertainties to be resolved in the simulation of advection, diffusion, and deposition. The Workshop was planned for 2-4 March 2015 at Fukushima University to address these uncertainties. The first day of the workshop was planned to focus on discussions to improve the models, including both scientific research models and operational models for radiological protection, the investigation of field observations in Japan, and the planning of future research strategies. In addition to dispersion processes, the operational emergency response systems include modules for source term estimation, processing of observed data, and long term dose estimation. The second day of the workshop was planned to focus on exchange of knowledge of actual operating methods, as presented by international participants from organizations operating the emergency response system for nuclear facilities in their countries. (Summary; the report of the workshop was submitted to Bulletin of American Meteorological Society (BAM, DOI:10.1175/BAMS-D-15-00191.1))

 

 

2. Presentations

 

Oral presentation

 

02-Mar.

No.

Title

Name (Organizsaiton)

PPT

1

Opening remarks

Chair; Hiroaki Kondo

(AIST, Japan)

Download

2

Introduction to basic concept both of dry and wet deposition models

Toshihiro Kitada

(National Institute of Technology, Gifu College, Japan)

Download

3

Intercomparison of Regional Chemical Transport Models for the Fukushima Daiichi Nuclear Power Plant Accident

Masayuki Takigawa

(JAMSTEC, Japan)

Download

4

Sensitivities Analyses of Atmospheric Radiocesium Simulation Based on Atmospheric Concentration and Deposition

Yu Morino

(NIES, Japan)

Download

5

Hints to Discriminate the Choice of Wet Deposition Models Applied to an Accidental Radioactive Release

Anne Mathieu

(IRSN, France)

Download

6

Utilization of Numerical Atmospheric Dispersion Models for Environmental Emergency Response (Report from MSJ Working Group on Emergency Response to Atmospheric Dispersion of Accidental Release of Radioactive Materials)

Toshiki Iwasaki

(Tohoku University, Japan)

Download

7

Airborne Radionuclides from the Fukushima Accident - Transport Media and Deposition Mechanism Not Considered Previously in Many Studies

Naoki Kaneyasu

(AIST, Japan)

Download

8

First Retrieval of Hourly Atmospheric Radionuclides Concentrations just after the Fukushima Accident by Analysing Filter-tapes of Operational Air Pollution Monitoring Stations in Eastern Japan

Haruo Tsuruta

(The University of Tokyo, Japan)

 

9

Deposition Model Uncertainties

Steve Hanna

(Harvard University, US)

Download

 

03-Mar.

No.

Title

Name (Organizsaiton)

PPT

1

Overview of Goals

Moderator: Steve Hanna

(Harvard University, USA)

Download

2

Future utilization of SPEEDI Lessons learnt from TEPCOes Fukushima Daiichi Nuclear Power Plant accident

Tetsuro Ito (The University of Tokyo, The Former Deputy Chief Cabinet Secretary)

 

3

Application of Atmospheric Dispersion Simulation System WSPEEDI for Analysis on the Environmental Impact due to the Fukushima Dai-ichi Nuclear Power Station Accident

Haruyasu Nagai

(Japan Atomic Energy Agencyj

Download

4

Evolution of RASCAL

J. Van Ramsdell

(Ramsdell Environmental Consulting, US)

Download

5

Hazard Transport Modeling:  Response for Decision Makers of Radiological Transport in Support of Operations from the Fukushima Daiichi Nuclear Power Plant Incident, 11 March 2011

Ron Meris

(Defense Threat Reduction Agency, US)

Download

6

Role of the Met Office in the UK Response to Nuclear Emergencies

Susan Leadbetter

(Met office, UK)

Download

7

ARGOS Decision Support during the Fukushima Nuclear Accident

Bent Lauritzen (Riso),

Jan Pehrsson

(PDC, Denmark)

Download

8

The IRSN Emergency Response System for Assessing The Consequences of an Accidental Release of Radioactivity Into The Atmosphere

Damien Didier

(IRSN, France)

Download

9

The Decision Support System RODOS and its features concerning atmospheric dispersion and the input from measurements

Hartmut Walter

(Federal Office for Radiation Protection, Germany)

Download

 

Poster presentation

 

02-Mar.

No.

Title

Name (Organizsaiton)

PPT

1

Analysis of Deposition and Re-suspension Parameters after the Fukushima Dai-ichi Nuclear Power Plant Accident

Minsik Kim

(The University of Tokyo, Japan)

Download

2

Sensitivity of Depositions to the Size and Hygroscopicity of Cs-Bearing Aerosols Released by the Fukushima Nuclear Accident

Mizuo Kajino

(MRI, Japan)

 

3

Ensemble Dispersion Simulation of the Radioactive Aerosol Emitted from the Fukushima Daiichi Nuclear Power Plant

Tsuyoshi T. Sekiyama

(MRI, Japan)

 

4

Weather Research and Forecasting (WRF) Model Overview and Capability for Atmospheric Dispersion Modeling Applications

Luna Rodriguez

(NCAR, US)

Download

5

An Algorithm for Modelling Wet Deposition in a Stochastic Particle Dispersion Model: Comparison with Deposition Data from the Fukushima Daiichi Nuclear Power Plant Accident

Pontus von Schoenberg

(FOI, Sweden)

Download

6

Fluctuation in the Deposition Rate Obtained from Observed Data

Akira Watanabe

(Fukushima University, Japan)

 

7

First Retrieval of Hourly Atmospheric Radionuclides Concentrations just after the Fukushima Accident by Analysing Filter-tapes of Operational Air Pollution Monitoring Stations in Eastern Japan

Haruo Tsuruta

(The University of Tokyo, Japan)

 

8

New Dose Evaluation System in Taiwan and Its Application in Fukushima Accident

Jen-Hsin Teng

(Central Weather Bureau, Taiwan)

Download

9

An Optimization Approach for Deposition Ratios

Tomoo Aoyama

(University of Tsukuba, Japan)

 

10

JMA's Regional Atmospheric Transport Model Calculations for the WMO Technical Task Team on Meteorological Analyses for Fukushima Daiichi Nuclear Power Plant Accident

Kazuo Saito

(Japan@Meteorological@Research@Institute)

Download

 

03-Mar.

No.

Title

Name (Organizsaiton)

PPT

1

Future utilization of SPEEDI Lessons learnt from TEPCOes Fukushima Daiichi Nuclear Power Plant accident

Tetsuro Ito

(The University of Tokyo, Japan)

 

2

Application of Atmospheric Dispersion Simulation System WSPEEDI for Analysis on the Environmental Impact due to the Fukushima Daiichi Nuclear Power Station Accident

Haruyasu Nagai

(JAEA, Japan)

 

3

Hazard Transport Modeling:  Response for Decision Makers of Radiological Transport in Support of Operations from the Fukushima Daiichi Nuclear Power Plant Incident, 11 March 2011

Ron Meris (DTRA, US)

Download

4

Role of the Met Office in the UK Response to Nuclear Emergencies@(NAME-Numerical Atmosphericdispersion Modelling Environment)

Susan Leadbetter

(Met.Office, UK)

Download

5

ARGOS Decision Support during the Fukushima Nuclear Accident

Bent Lauritzen, Jan Pehrsson

(RISO, Denamrk PDC, Denmark)

Download

6

The Decision Support System RODOS and Its Features Concerning Atmospheric Dispersion and the Input from Measurements

Hartmut Walter

(Federal Office for Radiation Protection, Germany)

Download

7

NCAR Atmospheric Transport and Dispersion Emergency Response Technology Development Programs

Paul E. Bieringer

(NCAR, US)

Download

8

Developing a Source Term – Experience Gained during Australiafs Fukushima Response

Marcus Grzechnik

(ARPANSA, Australia)

Download

9

A Source Term Estimation Method for a Nuclear Accident, using Atmospheric Dispersion Models

Ryohji Ohba

(The University of Tokyo, Japan)

Download

10

Reduction Methods of Uncertainty Factor for Source Term Estimation during Nuclear Accident

Masamichi Oura

(The University of Tokyo, Japan)

Download

11

Development of Source Term Estimation for a Nuclear Accident

Tomohiro Hara

(MHI, Japan)

Download

12

An innovative software for modelling and decision-support to face CBRN-E risks and threats

Patrick Armand

(CEA, France)

Download

13

Wet Deposition In A Stochastic Particle Dispersion Model

Pontus von Schoenberg

(FOI, Sweden)

Download

14

A SOFTWARE PLATFORM FOR ASSESSING THE CONSEQUENCES OF AN ACCIDENTAL RELEASE OF RADIOACTIVITY INTO THE ATMOSPHERE

Damien Didier

(IRSN, France)

Download

 

 

3. Participants list

 

No

Family Name

First Name

Country

Organizsaiton

1

Armand

Patrick

France

CEA

2

Bedwell

Peterl

UK

Public Health England

3

Bieringer

Paul

US

National Center for Atmospheric Research

4

Didier

Damien

France

IRSN

5

Grzechnik

Marcus

Australia

Australian Radiation Protection and Nuclear Safety Agency

6

Hanna

Steve

US

Harvard University

7

Lauritzen

Bent

Denmark

RISO

8

Leadbetter

Susan

UK

Met Office

9

Mathieu

Anne

France

IRSN

10

Meris

Ron

US

Defence Threat Reduction Agency

11

Pehrsson

Jan

Denmark

Prologue Development Center

12

Quinlan

Kevin R.

US

Nuclear Regulatory Ccommition

13

Ramsdell

J. Van.

US

Ramsdell Consultant

14

Schoenberg

Pontus von

Sweden

Swedish Research Defence
Agency

15

Teng

Jen-Hain

Taiwan

Central Weather Bureau

16

Walter

Hartmut

Germany

Federal Office for Radiation Protection

17

Yamada

Ted

US

Yamada Science & Art

18

Abe

Koichi

Japan

Institute for Environmental Sciences

19

Aoyama

Tomoo

Japan

Univeisity of Tsukuba

20

Aoyama

Michio

Japan

Fukushima University

21

Hara

Tomohiro

Japan

MHI

22

Hayakawa

Nobuhiro

Japan

MHI Nuclear Engineering Company, Limited

23

Hirao

Shigekazu

Japan

Nagoya Univeisity

24

Hirouchi

Jun

Japan

Nagoya Univerisity

25

Horie

Yousuke

Japan

Hyogo Prefectual Institute of Environ. Sci.

26

Ishikawa

Hirohiko

Japan

Disaster Prevention Research Institute, Kyoto University

27

Ishitsuka

Tatsuo

Japan

ITOCHU Techno-Solutions Corporation

28

Ito

Hirohide

Japan

The Japan Atomic Power Company

29

Ito

Tetsuro

Japan

The University of Tokyo

30

Iwasaki

Toshiki

Japan

Graduate School of Science, Tohoku University

31

Kajino

Mizuo

Japan

Meteorological Research Institute

32

Kaneyasu

Naoki

Japan

AIST

33

Kato

Shinsuke

Japan

The University of Tokyo, Institute of Industrial Science

34

Kim

Minsik

Japan

The University of Tokyo, Institute of Industrial Science

35

Kitada

Toshihiro

Japan

Gifu National College of Technology

36

Kondo

Hiroaki

Japan

AIST

37

Kubo

Kazuki

Japan

Japan Nuclear Fuel Limited

38

Kusunoki

Takayoshi

Japan

Institute of Nuclear Safety System, Incorporated

39

Mizumoto

Nobuko

Japan

IHI Corporation

40

Morino

Yu

Japan

National Institute for Environmental Studies

41

Nagae

Takuya

Japan

Japan Nuclear Fuel Limited

42

Nagai

Haruyasu

Japan

Japan Atomic Energy Agency

43

Nagai

Susumu

Japan

Japan Nuclear Fuel Limited

44

Nakayama

Hiromasa

Japan

Japan Atomic Energy Agency

45

Niisoe

Tamon

Japan

Department of Health and Environmental Sciences, Graduate Scool of Medicine, Kyoto Univ.

46

Ohba

Ryohji

Japan

The University of Tokyo, Institute of Industrial Science

47

Ohmi

Tomoaki

Japan

Chuden CTI Co., Ltd.

48

Oura

Masamichi

Japan

The University of Tokyo, Institute of Industrial Science

49

Sada

Koichi

Japan

CRIEPI

50

Saito

Kazuo

Japan

Meteorological Research Institute

51

Satou

Teruyuki

Japan

Institute of Environmental Radioactivity, Fukushima Univ.

52

Sekiyama

Tsuyoshi

Thomas

Japan

MRI/JMA

53

Sorimachi

Atsuyuki

Japan

Fukushima Medical University

54

Takigawa

Masayuki

Japan

Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

55

Takimoto

Hiroshi

Japan

Central Research Institute of Electric Power Industry

56

Terada

Hiroaki

Japan

Japan Atomic Energy Agency

57

Tsuruta

Haruo

Japan

The University of Tokyo, Atmosphere and Ocean Research Institute

58

Wakabayashi

Ryusuke

Japan

Japan Nuclear Fuel Limited

59

Watanabe

Akira

Japan

Fukushima University

60

Yamano

Daisuke

Japan

The Kansai Electric Power Co., Inc. Nuclear Power Division Radiological Management Group

61

Yamazawa

Hiromi

Japan

Nagoya Univerisity

62

Yasuda

Tomomi

Japan

Kansai Electric Power Co. Nuclear Power Division, Nuclear Safety Engineering Group

 

 

International workshop on dispersion and deposition modeling for nuclear accident releases

 -Transfer of science from academic to operational models-

 2nd, Mar, 2015 - Wed, 4th, Mar, 2015, Fukushima University

 

 

<Page 1, 2>