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17 Jul 2019Modelling urban heat islands in Kuala Lumpur

Over half of the world's population reside in urban areas, particularly in Asian countries and its percentage continues to increase. Megacities bring their own unique problems, especially in relation to air pollution and land-use change and its impact on weather and climate, urban flooding and water availability.

A conference co-organised by City University of Hong Kong, Hong Kong University of Science and Technology and the Asian Network for Climate Science and Technology was held in May 2017 to discuss research on urban meteorology and climate in growing Asian cities. Following on from that conference, the journal Geoscience Letters has been publishing related papers in the 'Thematic Collection in Geoscience Letters: Asian Urban Meteorology and Climate'.

The latest of these publications, 'Urban heat island modelling of a tropical city: case of Kuala Lumpur', was co-authored by CERC. It presents evaluation and results of an application of the ADMS-Urban Temperature and Humidity model for the city of Kuala Lumpur in Malaysia. The study relates to work undertaken as part of the Newton-Ungku Omar funded project 'Disaster Resilient Cities: Forecasting Local Level Climate Extremes & Physical Hazards for Kuala Lumpur'; project partners include University Kebangsaan Malaysia, Malaysian Meteorological Department, University College London and the University of Cambridge.

The figure shows (a) ADMS-Urban modelled air temperatures at 3 m above ground (12:00 noon) and (b) derived Land Surface Temperature LST (11:27 a.m.) for Greater Kuala Lumpur; blanks are areas with derived LSTs lower than 15 °C due to cloud cover. The figure demonstrates that the modelled air temperatures correlate with the LSTs.


12 Jul 2019Irish EPA assesses NO2 in Dublin using ADMS-Urban

The Irish Environmental Protection Agency has published new evidence on NO2 levels in Dublin. The report has been widely covered including by The Irish Times and RTE.

The EPA report draws on a modelling study carried out by CERC using ADMS-Urban. CERC used traffic data provided by Dublin City Council, and emissions data from the EPA and the MapElre project. LIDAR height data was analysed to derive building parameters for the ADMS-Urban advanced street canyon module. Modelled concentrations were compared with measurements from continuous monitors and a diffusion tube study; overall, the model performed well.

The report identifies areas likely to breach the EU 40μg/m3 limit value for annual average NO2 concentrations: several streets in the city centre, the M50 motorway and the area around the entrances to the Dublin Port Tunnel.

The EPA is using both of the studies to help expand the national monitoring network as part of the National Ambient Air Quality Monitoring Programme 2017-2022. If further monitoring confirms exceedences of the EU limit value, the local authorities will be required to produce an Air Quality Action Plan.

3 Jul 2019CERC at IEMA World Environment Day Event in Manchester: 'Fighting Air Pollution on a Local Level'

On 4th June, Amy Stidworthy from CERC was pleased to be invited to speak at an IEMA event that was held in Manchester to mark World Environment Day, with the focus on research trends around air pollution and what is happening locally in Manchester to address this ongoing issue. Amy spoke about the air quality forecasting and alert service for Manchester that CERC provides for Transport for Greater Manchester using ADMS-Urban; you can see Amy's presentation here. You can access all the presentations from the event on the IEMA website here.

7 Jun 2019EFT 9.0 for ADMS-Roads, ADMS-Urban & ADMS-Airport 4.1.1

The UK Department for Environment, Food & Rural Affairs and the Devolved Administrations released version 9.0 of the Emissions Factors Toolkit (EFT) in May 2019. Details of the updates in this new version are given on page 5 of the EFT user guide.

ADMS-Roads, ADMS-Urban and ADMS-Airport incorporate the EFT emission factors so that emission rates can be calculated from available traffic and speed data. CERC have compiled an update to add the EFT version 9.0 emissions factors to version 4.1.1. This update is available for download from the CERC User Area.

The new version of EFT includes the effect of loading and gradients on Heavy Duty Vehicles. These features will be made available in version 5, which will be released later this summer.

5 Jun 2019Registration is now open for the ADMS User Group Meetings, 13-14 November 2019, Oxford

You can register now for the 2019 User Group Meetings, which will be held in Oxford on 13th and 14th November.

  • ADMS 5 User Group Meeting: 13th November
  • ADMS-Urban and ADMS-Roads User Group Meeting: 14th November

These meetings will include the usual mix of presentations by CERC staff and software users and are the ideal opportunity to hear the latest news and advice on new model features. Organisations with a valid support contract are entitled to one or more delegate places free of charge depending on the type of licence held. Please contact CERC if there is a topic you would like to be covered at one of the meetings or if you would like to give a 'user view' presentation. More details will be published later in the year. Registration will remain open until 31st October 2019.

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