Partner 18 - UH-CAIR (United Kingdom)
University of Hertfordshire (UH-CAIR)


Expertise and experience of the organization
The Centre for Atmospheric and Instrumentation Research (CAIR) is a part of the Science and Technology Research Institute (STRI) at the University. STRI consists of over 70 researchers and PhD students and manages in excess of national and international 40 projects. It has an integral IPR and Contracts unit and works closely with the Business Partnership Office and the Research Contracts Office of the University. Research within CAIR focuses on measurement and characterisation of aerosols and meteorological and air pollution modelling from local to regional scales. A range of measurement and modelling techniques are employed to study the processes and dynamics of air pollutants under different meteorological conditions. CAIR is involved in several EU funded projects, including OSCAR (coordinator), REVEAL, SAPPHIRE, FUMAPEX, AIR4EU and the Cluster of European Air Quality Research (CLEAR). CAIR has also participated in COST 715 and is currently involved in COST 728 (Enhancing Mesoscale Modelling Capability for Air Pollution and Dispersion Applications).

Role and contribution

Integration of UK higher resolution emissions inventories into regional emission inventory and the influence of up-scaling of megacity emission to regional/global scales. Use of UM and WRF with CMAQ to improve the treatment of downscaling processes for megacities from regional to urban scales and finer and evaluate their local to regional air quality impact. Application and demonstration of prototype modelling system for case studies and scenarios evaluation on London and Paris urban conglomeration area. Synthesis of project outcomes to develop a framework approach for integrating models and apply the integrated approaches to quantify the impacts on and of megacities over regional to global scales. 

Principal personnel involved
Dr. Ranjeet S Sokhi (Prof.; Tel: +44 (0) 1707 284520; Fax: +44 (0) 1707 284208; Email: r.s.sokhi@herts.ac.uk) - Prof. of Atmospheric Science and head of Atmospheric Dynamic and Air Quality.  Development and running of research programmes in urban air quality, measurement of air pollutants (e.g. particles, inorganic and organic), modelling of meteorological processes and air quality from local to mesoscales and computational systems for air pollution assessment. He has been involved in various national and international projects funded through a range of national and European sources such as a Dti/NERC project with Casella CEL (New particle Instrument), EPSRC/BRE (Personal exposure), Framework 5 (PARTICULATE, OSCAR, SAPPHIRE, FUMAPEX, REVEAL), INERIS, France (VOCs), FP6 (AIR4EU) and the British Council (source apportionment of particles). He is the coordinator of the Cluster of European Air Quality Research (CLEAR) consisting of 11 EU funded projects. He is the chair of COST 728 on Enhancing European Mesoscale Modelling Capabilities for Air Pollution and Dispersion Applications.
Dr. Ye YU (Res. Fellow) - PhD in Atmospheric Environment. Her research involves advanced meteorological and air quality modelling studies; air pollution meteorology; regional ozone chemistry; boundary layer meteorology. She worked on several EU funded projects, including FUMAPEX (Integrated Systems for Forecasting Urban Meteorology, Air Pollution and Population Exposure) and AIR4EU (Air Quality Assessment for Europe: from local to continental scale), as well as the Environment Agency funded project “Atmospheric chemistry and regional ozone”. All of these projects involve the use of comprehensive atmospheric numerical models, including the PSU/NCAR mesoscale model (MM5) and the Models-3/Community Multiscale Air Quality Modelling System (CMAQ). Adapted the Sparse Matrix Operational Kernel Emissions (SMOKE) processing system for Europe and UK applications.
Dr. Charles Chemel (Res. Fellow) - his current research interests lie in studying environmental fluid mechanics, flow over complex terrain, urban air quality, boundary-layer physics, transport and mixing processes, turbulence in fluids, using observation as well as numerical simulation. Participation in, support of the management and further development of a range of international and national research programmes especially in relation to urban meteorological modelling, with emphasis on applications such as climate and air quality.  He act as investigator in project POVA( POllution in Alpine Valleys) and task leader in WG 1 of COST728.
Dr. Nutthida Kitwiroon (Res. Fellow) - participate further development of national and international research programmes especially in relation to emissions processing for atmospheric modelling (developing of a Fortran code for emission processing for both area and biogenic sources, including application of SMOKE), treatment of surface boundary layer parameters for meteorological and air quality models from local to mesoscales (PEARL and Models-3(MM5/CMAQ)), and applications of remote sensing & GIS (ArcView/ArcGIS and MapInfo) to air pollution modelling in urban areas. She has been involved in several national and international projects funded through a range of national and European sources such as Ozone project (investigated the effect of large point sources in UK on air quality at mesoscale), Framework 5 (OSCAR, FUMAPEX) and FP6 (AIR4EU).

Selected relevant publications
Sokhi R S, San José R, Kitwiroon N, Fragkou E, Pérez J, Middleton D. R., (2006): Prediction of ozone levels in London using the MM5-CMAQ modelling system, Environmental Modelling and Software, 21, 567-577.
Kukkonen J, Pohjola M, Sokhi R S, Luhana L et al, (2005): Analysis and evaluation of selected PM10 air pollution episodes affecting four European cities: Helsinki, London, Milan and Oslo. Atmos. Environment., 39, 2759-2774.
Kitwiroon N, Sokhi R S, Luhana L., Teeuw R M (2002): Improvements in Air Quality Modelling by Using Surface Boundary Layer Parameters Derived from Satellite Land Cover Data, Water, Air & Soil Pollution: Focus, 2, 29-41.
Ye Yu, Xiaoming Cai, (2006): Structure and dynamics of katabatic flow jumps: idealised simulations. Boundary-Layer Meteorol., 118, 527–555.
Chemel C and J.-P. Chollet. (2006): Observations of the daytime boundary layer in deep alpine valleys. Boundary-Layer Meteorol., 119, 239–262.
Brulfert G., C. Chemel, E. Chaxel, J.-P. Chollet, B. Jouve, H. Villard, (2006): Assessment of 2010 air quality in two alpine valleys from modelling: weather type and emission scenarios. Atm. Environ., 40, 7893–7907.



FP7 EC MEGAPOLI, 2008-2011