Events

Please Note: ADMLC events, presentations and forums prior to 1 April 2014 have been archived. Links are provided below to the archived papers stored on The National Archives website.

ADMLC Meeting

MS Teams, 20 March 2023

ADMLC Webinar (Dense gas dispersion modelling in complex terrain, with a focus on carbon dioxide pipelines)

MS Teams – Tuesday 7 March 2023 (14:00-17:00 GMT)

There are two longstanding scientific issues in relation to the current growth in carbon capture and storage projects that need to be addressed. Firstly, there is a need to develop models that can simulate dense-gas dispersion in complex terrain (hills, slopes) and produce results quickly, i.e., within seconds or minutes of computer runtime. Secondly, there is a need to obtain reliable data from large-scale field trials involving dense-gas dispersion in complex terrain to validate these new models. The aim of this webinar was to review current developments in dense gas modelling and experimental studies and consider the scope for future work (link). A recording of the meeting and the presentations are available below. If you would like to be involved in further discussions on this topic please email: admlc@ukhsa.gov.uk.

Introduction

Part 1

Part 2

Recording

ADMLC Meeting

MS Teams, 22 November 2022

ADMLC Webinar (Use of dispersion modelling for sensor network design to facilitate source attribution, emissions estimation and incident response)

MS Teams – Tuesday 8 February 2022

This on-line webinar was hosted by ADMLC and included five presentations on the use of modelling to inform sensor network design. The ADMLC would like to thank those who attended and in particular the speakers. The presentations are available here (in progress):

Introduction

Webinar recording Introduction:

Part 1

Webinar recording part 1:

Part 2

Webinar recording part 2:

Discussion

Webinar recording discussion:

ADMLC Webinar (dispersion modelling and satellites)

MS Teams – 27 May 2021

On Thursday 27 May ADMLC hosted an online webinar with a number of talks from distinguished experts on the theme of dispersion modelling and satellite-based monitoring. The presentations are available here:

Introduction

Webinar Recording Part I

Environmental and source surveillance

Webinar Recording Part II

Hazard prediction and incident response

  • Murray Purves (Riskaware) “Space-based data for urban hazard prediction“
  • Scott Bradley (DTRA) and Joel Howard (Dstl) “Comparison of SCIPUFF predictions to SO2 measurements from instruments on the MetOp‐A, MetOp‐B, Aura and Soumi satellites from the 2016 fire at Al‐Mishraq”

Webinar Recording Part III

A big thank you to those who attended and an even bigger thank you to the presenters, all of whom made this event a great success. It is hoped the next webinar will be held in September 2021 – keep your eyes on this webpage for further details.

ADMLC Webinar (dispersion modelling in emergency response)

MS Teams – 29 January 2021

On Friday 29 January ADMLC hosted an online webinar with three talks by distinguished experts on the theme of dispersion modelling in emergency response. The presentations are available here:

  • Dr Simon Gant (HSE – Chair of ADMLC): Introduction
  • Dr Sarah Millington (MetOffice): Joint Agency Modelling Providing guidance on the impacts of the atmospheric dispersion and deposition of radiological material during a response to an incident
  • Dr Ron Meris (DTRA): U.S. DoD DTRA Technical Reachback Overview and Two Case Study Examples: Fukushima Daiichi Nuclear Facility 2011 and Arkema Chemical Facility 2017
  • Dr Frédéric Tognet (INERIS): Post-accidental dispersion modelling: A look back at the incidents of Lubrizol (2013, 2019) and Notre Dame (2019)

ADMLC Seminar (dispersion modelling for emergencies)

PHE – CRCE , 12 March 2020

The Atmospheric Dispersion Modelling Liaison Committee held a one-day workshop on 12 March 2020 at the Centre for Radiation, Chemicals and Environmental Hazards (CRCE), PHE, Oxfordshire.

The aim of the workshop was to bring together dispersion modellers, policy experts and decision-makers to discuss the role of dispersion modelling in emergency planning and response across different contaminant types. Details of the event can be found here.

ADMLC Meeting

PHE – CRCE, 1 May 2019

ADMLC Meeting

PHE – CRCE, 20 February 2019

Dr Hort stood down as Chair. Dr Hort chaired the Committee for 10 years, and in that time ADMLC have funded many studies, held four workshops, and sought to fill the gaps between academic research and consultancy work in the field of atmospheric dispersion. Dr Hort was grateful for the support from the Committee over this time and the thanks was reciprocated by Committee members who were appreciative for all Dr Hort’s contributions to the Committee. The new Chair is Dr Gant. The Committee look forward to the new ideas and expertise Dr Gant will bring to the role.

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ADMLC Meeting

PHE – CRCE, 20 September 2018

ADMLC Meeting

PHE – CRCE, 15 May 2018

  • Presentation – Dr Simon Gant (Health and Safety Laboratory) – Introduction to CFD modelling of source terms and local-scale atmospheric dispersion (Part 2 of 2): 2018_05_15_Pres_1
  • Presentation – Dr Simon Coldrick (Health and Safety Laboratory) – Evaluating consequence models: 2018_05_15_Pres_2

ADMLC Meeting

PHE – CRCE, 15 February 2018

  • Presentation – Dr Simon Gant (Health and Safety Laboratory) – Introduction to CFD modelling of source terms and local-scale atmospheric dispersion (Part 1 of 2): 2018_02_15_Pres_1

ADMLC Meeting

PHE – CRCE, 7 September 2017

  • Presentation – Dr Hannah Gough (University of Reading) – Effects of meteorological conditions on building natural ventilation in idealised urban settings: 2017_09_07_Pres_1
  • Presentation – Mr Peter Bedwell (Public Health England) – The effectiveness of sheltering in reducing doses from atmospheric releases of radioactivity: 2017_09_07_Pres_2

ADMLC Uncertainty Seminar

ESA, 3 May 2017

On Wednesday 3rd May 2017 the ADMLC (the Atmospheric Dispersion Modelling Liaison Committee) held a seminar on Uncertainty at the European Centre for Space Applications and Telecommunications, Harwell, Oxfordshire. Attendees represented academia, government departments and private consultancies – Attendee_List v1.2. The seminar focused on different aspects of uncertainty, and its impact both in the field of atmospheric dispersion modelling (ADM) and the provision of advice reliant on ADM. The themes included quantifying uncertainty, reducing uncertainty, communicating uncertainty and decision making in uncertainty. A broad range of high quality speakers from government departments and academia highlighted where advances in science have been made and where further work in the field is still required.

  • Agenda – ADMLC_Seminar_Programme_v1.2
  • Welcome & Introduction to ECSAT – ECSAT – Introduction
  • Welcome & Introduction from the ADMLC Chair – ADMLC Chair Introduction
  • Presentation 1 – Stephanie Haywood, PHE: Impact of uncertainties on early health protection decisions in radiation emergencies and applicability to other fields – Presentation 1
  • Presentation 2 – Jeremy Oakley, University of Sheffield: Uncertainty and Sensitivity Analysis for Complex Simulation Models – Presentation 2
  • Presentation 3 – Helen Dacre, University of Reading: Quantifying the uncertainty in volcanic ash forecasts – Presentation 3
  • Presentation 4 – Jonathan Rougier, University of Bristol: Quantifying confidence in probability assessments – Presentation 4
  • Presentation 5 – Ken Mylne, Met Office: Ensemble modelling to better understand the impact / significance of uncertainty – Presentation 5
  • Presentation 6 – Shannon Fox, US Dept of Homeland Security: Jack Rabbit II field-scale chlorine experiments – using measurements to reduce model uncertainty – Presentation 6 awaiting approval. Note that information can be found at: Jack Rabbit II Program—Chemical Security Analysis Center Fact Sheet and Jack Rabbit Aerial Videos
  • Presentation 7 – Wendy Parker, University of Durham: False Precision, Surprise and Improved Uncertainty Assessment – Parker & Risbey (2015) (or Parker & Risbey, 2015)
  • Presentation 8 – Simon French, University of Warwick: Presenting & communicating uncertain information – Presentation 8
  • Presentation 9 – Catrinel Turcanu, Belgian Nuclear Research Centre: Risk, uncertainty and decision support – Presentation 9

ADMLC Meeting

PHE – CRCE, 14 February 2017

  • Presentation – Prof Mike Reeks (University of Newcastle) –  The Development and Application of Kinetic Models for the Resuspension of Small Particles in Turbulent Boundary Layers: 2017_02_14_Resus_Pres_1
  • Presentation – Dr Frances Beckett (Met Office) – Forecasting Resuspended Volcanic Ash Clouds: 2017_02_14_Resus_Pres_2

Radiation Protection Week 2016 session entitled, “Presenting uncertain information in radiation emergencies”

RPW 2016 was a week long conference that brought together complementary strands of radiation protection research. Details of the meeting and presentations can be found at https://www.phe-protectionservices.org.uk/rpw/. The session covering the presentation of uncertain information in radiation emergencies drew on work previously funded by ADMLC (link). Presentations from this session are available here:

communicating_geographical_uncertainty_rpw_plain

workshop-3-smh_v4

Atmospheric Dispersion Forum: The ingress of pollutants into buildings (& the effectiveness of sheltering)

PHE – CRCE, 17 September 2013

On Tuesday 17th September the ADMLC held a forum on the ingress of pollutants into buildings and the effectiveness of sheltering at the Centre for Radiation, Chemical and Environmental Hazards, Chilton, Oxfordshire. In the broadest sense the objective of the day was to bring together members of the Committee (who represent both industrial and regulatory organisations) and the dispersion modelling community to disseminate ideas and exchange views on the topic of building ingress and sheltering effectiveness. However the aim was more specifically to highlight aspects for improvement in the modelling of the ingress of pollutants into buildings and furthermore, provide possible solutions.

ADMLC Meeting

PHE – CRCE, 4 June 2013

ADMLC Meeting

HPA – CRCE, 19 February 2013

ADMLC Meeting

HPA – CRCE, 28 May 2012

ADMLC Meeting

HPA – CRCE, 27 September 2011

Atmospheric Dispersion Forum: Source Term Estimation and Event Reconstruction

HPA – CRCE, 5 May 2011

On Thursday 5th May the ADMLC held a forum on Source Term Estimation and Event Reconstruction at the Centre for Radiation, Chemical and Environmental Hazards, Chilton, Oxfordshire. The objective of the day was to bring together members of the Committee (who represent both industrial and regulatory organisations) and the dispersion modelling community to disseminate ideas and exchange views on the topic of inverse modelling. Particular emphasis was placed on the practical application of inverse modelling techniques.

ADMLC Meeting

HPA – CRCE, 4 May 2011

ADMLC Meeting

HPA – CRCE, 9 February 2011

ADMLC Meeting

HPA – CRCE, 28 September 2010

ADMLC Meeting

HPA – CRCE, 09 February 2010

Atmospheric Dispersion Forum

HPA – CRCE, 28 September 2009

On Monday 28th September the ADMLC held a forum on atmospheric dispersion modelling at the Centre for Radiation, Chemical and Environmental Hazards, Chilton, Oxfordshire. The objective of the day was to bring together members of the Committee (who represent both industrial and regulatory organisations) and representatives of UK academia to disseminate ideas and exchange views. Particular emphasis was placed on the identification of gaps in knowledge and understanding in the field of atmospheric dispersion and where future effort should be focussed.

The following papers were presented.

Richard Hill, Westlakes Scientific Consulting: Uncertainty modelling in dispersion assessments

Alison Tomlin, The University of Leeds: The use of sensitivity analysis in the evaluation of dispersion models

Zheng-Tong Xie, The University of Southampton: Modelling dispersion in full scale urban environments

Stephen Belcher, The University of Reading: Mechanisms of dispersion in urban areas revealed by the DAPPLE experiments

Joe Egan, HPA: Estimating the location and spatial extent of a covert anthrax release

Nils Mole, The University of Sheffield: Modelling large concentrations of dispersing hazardous gases

Tim Fletcher, The University of Glasgow: Interaction of an Eulerian flue gas plume with wind turbines – a computational study

Roger Timmis, ADMLC (& The University of Lancaster): The AirTrack Project: Tracking the performance of air pollution sources from ambient data

Alan Robins, The University of Surrey: General overview of the future for dispersion modelling

ADMLC Meeting

HPA – CRCE, 28 April 2009

Workshop on Reliability of Atmospheric Dispersion Models

NRPB, 22-23 October 2001

The ADMLC organised a meeting on the reliability of atmospheric dispersion models with particular emphasis on the aspects related to the licensing process for nuclear installations in the UK. The meeting was intended to address two questions:

  • what do regulators want from atmospheric dispersion models?
  • how reliable are models for those needs?

The following papers were presented.

What do regulators want from models?

How reliable are dispersion models for those needs?