Atmospheric scientist at the University of Bristol
Based on measurements we collected on the UK’s research aircraft in 2016, we have derived the first regional inverse modeling based estimates from India (Say et al., 2019). We show that CFCs are not in widespread use and there is Continue reading First halocarbon emissions from India
This past summer, researchers across the UK and India are teaming up to study the Indian monsoon as part of a £8 million observational campaign using the NERC research aircraft BAe-146. India receives 80% of its annual rainfall in three months – Continue reading Measuring greenhouse gases during India’s monsoon
In parallel with efforts to create a detailed bottom-up inventory (National Atmospheric Emissions Inventory) for the major greenhouse gases, the UK has funded four monitoring stations to infer emissions for the purposes of verification. In our new study, available on Continue reading Estimating the UK’s greenhouse gas emissions
One of my main research interests is in measuring the concentrations of greenhouse gases in South Asia, an area that holds significant implications for global climate and climate policies. Despite its importance, this region of the world is poorly monitored Continue reading In situ greenhouse gas measurements in India
The electron capture detector was installed in Darjeeling in March 2012. Measurements of N2O and SF6 are underway and 4 months of CH4 have already been collected!
My instrument was deployed to Darjeeling in November 2011. Measurements of CH4 are currently underway! The installation of the ECD is expected in spring 2012. More information and pictures about the deployment can be found here!
Atmospheric methane (CH4) and (N2O) are major long-lived greenhouse gas and have the second and third highest radiative forcing after carbon dioxide (CO2). A positive radiative forcing means that the atmosphere is being warmed, while a negative forcing means that cooling Continue reading How are greenhouse gases measured?