My research interests focus on the use of airborne and satellite in situ and remote sensing data and transport modelling to interpret atmospheric chemical processes and composition budgets, especially those linked to air quality/urban pollution and greenhouse gases. Specific current (active) projects include:
Closing the Global Methane Budget (NERC - 2016-2020)
This NERC-funded project will use (and add to) a global dataset of greenhouse gas measurements - including surface monitoring stations, aircraft and satellites - to attempt to balance the sources and sinks of atmospheric methane in the Earth system. Methane (the second-most important greenhouse gas after CO2) is rising rapidly in the atmosphere and science does not fully understand the reasons why. The relative roles of fossil fuel emissions, wetland emissions, Arctic climate change and biogeochemical sinks must all be understood to close the "budget". This project will use vast datasets and state-of-the-science Earth system models to reconcile these factors and update our understanding of each source and sink term through tailored field work and the setup of new monitoring stations (especially in the Tropics). Grant's role in this project leads FAAM aircraft field projects (www.faam.ac.uk) in Senegal, Uganda and Zambia to study regional source signatures of methane to help apportion and quanitfy fluxes of methane from different source types across the planet.
Unmanned Aerial Vehicles for the measurement of CH4 (NERC - 2016-2017)
This 12-month NERC Technology Proof-of-concept project will seek to develop and test a new prototype drone for the remote sensing of methane and pioneer the use of 3D spatial tomography and rapid scanning techniqes to map methane plumes and quantify mass flux.
Environmental Baselining of potential locations of Hydraulic Fracturing (2015-2019)
This Department for Energy and Climate Change (now BEIS) funded project (see www.bgs.ac.uk/research/groundwater/shaleGas/monitoring/yorkshire.html) is an academically-led and independent project to understand the background environment of locations in Yorkshire and Lancashire ahead of any potential exploratory drilling for shale gas. My role in this project (together with colleagues at the University of York) is to lead the collection of a baseline dataset of atmopsheric composition (including greenhouse gases and air quality) at these two locations to provide a background against any future potential changes due to fracking in those areas can be interpreted and assessed.
NERC EQUIPT4RISK (2018-2022)
This strategic programme addresses the technological and measurement needs to better assess environmental impacts and risk associated with the development of shale gas extraction in the UK. Grant's involvement as the PI of a work package on atmospheric impacts consists of fieldwork and measurements to detect and quantify fugitive emissions of methane and greenhouse gases and air quality impacts.