Project Principal Investigators (PIs) Lead UK PI Prof. Ranjeet Sokhi (University of Hertfordshire) Lead Indian PI Dr. Gufran Beig (Indian Institute of Tropical Meteorology (IITM)) UK Principal Investigating Partners University of Hertfordshire (UH) Ranjeet Sokhi (PI) - is Director of the Centre for Atmospheric and Instrumentation Research (CAIR) and a PI for NCAS. He has nearly 200 publications in major international journals, conference proceedings and reports. His research is focussed on physical and chemical processes affecting air quality and its impacts on local to regional scales. He coordinates UK air quality forecasting for NCAS (https://sci.ncas.ac.uk/airquality/) with WRF-CMAQ and has coordinated or participated in more than 25 multi-partner projects funded by NERC, EC, UK Government and Industry. He is an advisor for DEFRA, WHO, PHE and is the chair of the International Conferences on Air Quality. He is a member of the UK Government’s Air Quality Modelling Steering Group. In addition to acting as the joint PI (with Beig) for promote, Sokhi will also lead the integration of modelling prediction and analysis across the APHH programme. Charles Chemel is a member of CAIR and an NCAS Atmospheric Physics Researcher with research interests in interactions between air quality and boundary layer processes based on field observations and modelling analysis with WRF-CMAQ and WRF-Chem. He is developing the NCAS National Capability Programme on Boundary Layer Processes, focussing on stable boundary layers, haze and fog. University of Manchester (UoM) Gordon McFiggans has 153 peer-reviewed publications. His current and recent projects include 8 NERC consortia, 2 EU consortia and one EU Network of Infrastructures. He has expertise in regional multiphase chemistry modelling of gas-particle processes. His team is responsible for the atmospheric chemical forecast capability in the ManUniCast educational resource (www.manunicast.com). He led a Defra-funded review of secondary aerosols (2015). Hugh Coe is Professor of Atmospheric Composition with over 20 years’ experience in measuring the physical and chemical characterisation of aerosol particles. He has published 208 peer reviewed publications and currently holds 10 research grants. He is currently the NCAS member of the FAAM Aircraft Operations Committee. He is the PI of the VOCALS-UK and is NCAS Co-Director for airborne measurements and the Project PI for the NERC SAMBBA consortium project. David Topping is NCAS research scientist and senior research fellow with extensive expertise in developing numerical aerosol models across scales. He has been PI for 7 NERC grants and is CoI on 10. He has 48 peer-reviewed papers and a book chapter on aerosol thermodynamics. Paul Williams is NCAS AMF instrument scientist with extensive experience in aerosol instrumentation. He has been PI on 10 grants and CoI on a further 14 and has 67 peer-reviewed publications. University of Cambridge Alex Archibald is a member of NCAS Climate and is based at the Centre for Atmospheric Science. He specialises in the mechanisms of chemistry in the atmosphere, interactions between the biosphere and atmosphere and coupling between climate and atmospheric composition using observations and the UKCA chemistry-climate model, of which he sits on the executive committee. University of Lancaster Oliver Wild is Reader in Atmospheric Science and has more than 20 years’ experience in developing and applying models of atmospheric chemistry and transport. He has led or contributed to international assessments of atmospheric composition change via HTAP, ACCENT and IPCC. His interests include ozone and oxidants in Asia, regional and megacity air pollution, and he leads UK modelling contributions to the AIRPRO and AIRPOLL projects on air quality in Beijing. University of Edinburgh Ruth Doherty is Professor in Atmospheric Sciences at Univ. Edinburgh with research interests in modelling atmospheric composition at regional and urban scales and impacts of air quality on human health. She is PI on NERC funded projects studying air pollution in London and Glasgow. University of Leeds Martyn Chipperfield is a member of the Institute for Climate and Atmospheric Science. His research specialism is in analysis of satellite data and chemistry-climate interactions, satellite and regional aircraft/ground-based data, and WRF-Chem modelling, to quantify the contribution of long-range transport. He has participated in a number of NERC and EU funded projects and is a member of several committees of WMO/UNEP and NERC. Ken Carslaw is the head of the Aerosol Research group and is the PI of the GLOMAP global aerosol model and the HadGEM-UKCA aerosol-climate model. His research interests are in aerosol model robustness and sensitivity and in uncertainty analysis of complex model predictions. Indian Principal Investigating Partners Indian Institute of Tropical Meteorology (IITM) Gufran Beig (PI) has more than 30 years of experience in the impact of climate and air quality on health and changing climate. He and his team have developed India’s first System of Air Quality and Weather Forecasting and Research (SAFAR) for Delhi and other cities. As a project director for SAFAR, he has established an Early Warning System for health advisories, Environmental Information System (ENVIS) center and a framework to generate research outcomes for “National Air Quality Action Plan”. Dilip Chate is a Deputy Chief Project Scientist and has experience of field measurements of aerosols distribution. Indian Institute of Technology (IIT Madras) Sachin Gunthe is the head of group and is focused on investigating fundamental physical, chemical, and biological properties of atmospheric aerosols including biological aerosols and their interaction with the biosphere under contrasting environments over India. His research employs a combination of field measurements, mathematical models, and laboratory experiments. National Atmospheric Research Laboratory (NARL) Vikas Singh is a scientist with expertise in the use of WRF-Chem and WRF-CMAQ for air quality modelling and forecasting to study role of physical and chemical mechanisms on trace gases and aerosols and its impacts over the Indian region. He has worked with Prof. Sokhi to develop the NCAS air quality forecasting system for UK. Recently, as part of the NARL weather forecast team, he has developed air quality forecasting system for India (http://forecast.narl.gov.in/airquality) for research and development. Jyoti Bhate conducts research related to mesoscale modelling, atmospheric dynamics and real time weather forecasting. Developed assimilation techniques for 3DVAR, 4DVAR assimilation system and is involved in daily weather forecast activities and ISRO’s satellite launching activities. Chaithanya D Jain is a Scientist at NARL and currently developing new instruments for measuring chemical species that are important for atmospheric chemistry research. He has research interests are atmospheric chemistry measurements and analysis. Amit P Kesarkar heads the WCRG group at NARL. His research involves mesoscale dynamics, parameterizations in weather and climate models, High Performance Computing and development of real time NARL weather forecast (http://forecast.narl.gov.in/weather). Sunil Peshin is a meteorologist at the India Meteorological Department (Delhi) and actively collaborated with NARL. He has experience of air quality and meteorological observations. He will collaborate with NARL scientists on local logistics and measurements in Delhi. Subcontractor Cambridge Environmental Research Consultants (CERC) - subcontracted to UH David Carruthers is a director of Cambridge Environmental Research Consultants (CERC) and responsible for the development of the ADMS-Urban high-resolution model for urban air quality. He has wide experience applying this model and is participating in the CUREAIR and AIRPRO projects nesting urban and regional-scale models. He is a member of the UK Government’s Air Quality Expert Group (AQEG) and recently of its Air Quality Modelling Steering Group. Other Project Partners UK Met Office's Hadley Centre Fiona O'Connor is the Scientific Manager of the Atmospheric Composition and Climate Team at the Met Office's Hadley Centre and is involved in the development of the UK Chemistry and Aerosol model, UKCA. Her interests are in global and regional atmospheric composition, chemistry-climate interactions and Earth System feedbacks. National Oceanic and Atmospheric Administration (NOAA) Georg A Grell is a senior scientist in NOAA’s Earth Modelling Branch. He has been the pioneer of online coupled models, especially the development of WRF-Chem. He has collaborated previously with Sokhi, under the COST 728 Action on mesoscale modelling. Pacific Northwest National Laboratory (PNNL) Rahul A Zaveri is a scientist at the Atmospheric Science and Global Change Division of PNNL. He is involved in the development of aerosol process representations into a range of global and regional models including WRF-Chem and has implemented a Volatility Basis Set (VBS) scheme in MOSAIC in order to represent size resolved secondary organic aerosol formation and transformation. He actively collaborates with McFiggans on aerosol representation in models. US Environmental Protection Agency (USEPA) Rohit Mathur is the head of the Computation Exposure Division at the USEPA. He and his team have developed the CMAQ model which is used world-wide for air quality research and assessment. He has been collaborating with Sokhi on improving the performance of CMAQ especially for fine particulate matter. World Meteorological Organisation (WMO) Alexander Baklanov has been leading the international development of online coupled models for many years. He was the coordinator of COST Action ES1004 on online coupled models and was the lead on FP7 project MEGAPOLI. He has recently been involved in developing and improving air quality forecasting capability for cities as part of the WMO/GURME programme including Delhi. Baklanov and Sokhi have been collaborating on the use of multiscale air quality modelling as part of FP7 projects, MEGAPOLI and TRANSPHORM, and Cost Actions 728 and ES1004.