A5018946106- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Calibration and Measurement Techniques
- Planetary Science and Exploration
- Spacecraft and Cryogenic Technologies
- Air Quality Monitoring and Forecasting
- Spectroscopy and Laser Applications
- Climate variability and models
- Air Quality and Health Impacts
- Remote Sensing and LiDAR Applications
- Environmental Policies and Emissions
- 3D Surveying and Cultural Heritage
- Vehicle emissions and performance
- Infrared Target Detection Methodologies
Natural Environment Research Council
2023-2024
University of Edinburgh
2018-2024
UK Centre for Ecology & Hydrology
2018-2021
Abstract. In this study, an extension on the previously reported status of COllaborative Carbon Column Observing Network's (COCCON) calibration procedures incorporating refined methods is presented. COCCON a global network portable Bruker EM27/SUN FTIR spectrometers for deriving column-averaged atmospheric abundances greenhouse gases. The original laboratory open-path lamp measurements instrumental line shape (ILS) spectrometer from water vapour lines have been and extended to secondary...
Abstract. Heatwaves are a substantial health threat in the UK, exacerbated by co-occurrence of ozone pollution episodes. Here we report on first use retrieved vertical profiles nitrogen dioxide (NO2) and formaldehyde (HCHO) over Central London from newly installed multi-axis differential optical absorption spectroscopy (MAX-DOAS) instrument coincident with two three heatwaves for hottest summer record. We evaluate space-based sensor observations routinely used to quantify temporal changes...
Abstract. The increasing use of intensive agricultural practices can lead to damaging consequences for the atmosphere through enhanced emissions air pollutants. However, there are few direct measurements surface–atmosphere exchange trace gases and water-soluble aerosols over grassland, particularly reactive nitrogen compounds. In this study, we present concentrations, fluxes deposition velocities HCl, HONO, HNO3, SO2 NH3 as well their associated aerosol counterparts Cl−, NO2-, NO3-, SO42-...
Abstract. The Amazon rainforest presents a unique, natural laboratory for the study of surface–atmosphere interactions. Its alternation between near-pristine marine-influenced atmosphere during wet season and vulnerable system affected by periodic intrusions anthropogenic pollution dry provides an opportunity to investigate some fundamental aspects boundary-layer chemical processes. This first simultaneous hourly measurements concentrations, fluxes, deposition velocities inorganic trace...
Abstract. Local and regional modelling of NH3 surface exchange is required to quantify nitrogen deposition to, emissions from, the biosphere. However, measurements model parameterisations for many remote ecosystems – such as tropical rainforest remain sparse. Using 1 month hourly fluxes meteorological parameters over a Amazon site (Amazon Tall Tower Observatory, ATTO), six based on bidirectional, single-layer canopy compensation point resistance were developed simulate observations exchange....
As part of the UK Greenhouse gas Emissions Measurement Modelling Advancement programme, National Centre for Earth Observation are establishing Monitoring network to Inform Net-zero Initiatives (GEMINI-UK). The primary aim GEMINI-UK network, comprising ten Bruker EM27/SUN shortwave infrared spectrometers, is help quantify regional net GHG emissions across UK, complementing in situ measurements collected by existing tall tower network. Collectively, these data will eventually form backbone a...
Studies have shown that gas-phase nitrous acid (HONO) is a major precursor of hydroxyl (OH) radicals in the boundary layer, which plays an important role formation pollutants such as ozone and secondary aerosol. Despite many studies undertaken development new techniques to measure HONO, processes governing are not completely understood. As such, current atmospheric models unable reproduce daytime HONO concentrations observed by in-situ measurements, suggesting existence unknown sources HONO....
Abstract. Heatwaves are a substantial health threat in the UK, exacerbated by co-occurrence of ozone pollution episodes. Here we report on first use retrieved vertical profiles nitrogen dioxide (NO2) and formaldehyde (HCHO) over Central London from newly installed Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument coincident with two three heatwaves for hottest summer record. We evaluate space-based sensor observations routinely used to quantify temporal changes...
Abstract. Local and regional modelling of NH3 surface exchange is required to quantify nitrogen deposition to, emissions from, the biosphere. However, measurements model parameterisations for many remote ecosystems – such as tropical rainforest remain sparse. Using one month hourly fluxes meteorological parameters over a Amazon site (Amazon Tall Tower Observatory, ATTO), six based on bi-directional, single-layer, canopy compensation point resistance were developed simulate observations...
In the UK, public health threat of heatwaves is exacerbated by co-occurrence ozone pollution episodes. Here we present retrieved vertical profiles nitrogen dioxide (NO2) and formaldehyde (HCHO) over Central London from a newly installed long-term Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument on 60-m altitude rooftop site during two three in hottest summer record. We evaluate routine space-based sensor observations air pollutant precursors enhance permanent...
The Field Spectroscopy Facility (Edinburgh, UK) is a Natural Environment Research Council public funded body which maintains and provides cutting edge spectroscopy instrumentation expertise to UK international researchers. facility primarily focuses on the provision of ground based spectroscopic instrumentation, often in support airborne surveys, but was awarded UKRI capital fund 2019 for development UAV sensor suite fill spatial resolution gap between measurements.Developed as...
Abstract. The increasing use of intensive agricultural practices can lead to damaging consequences for the atmosphere through enhanced emissions air pollutants. However, there are few direct measurements surface–atmosphere exchange trace gases and water-soluble aerosols over grassland, particularly reactive nitrogen compounds. In this study, we present concentrations, fluxes deposition velocities HCl, HONO, HNO3, SO2 NH3, their associated aerosol counterparts Cl−, NO2−, NO3−, SO42−, NH4+ as...
<p>Carbon emissions related to fossil-fuel use are particularly localized, with urban areas being the dominant contributor responsible for more than 70% of global emissions. In future, share population is expected continue rise, leading further increased focusing in areas. Cities also focal point many political decisions on mitigating and stabilization emissions, often setting ambitious targets national governments (e.g. C40 cities). For example, Mayor London has set target be...
Abstract. The Amazon rainforest presents a unique, natural laboratory for the study of surface-atmosphere interactions. Its alternation between near-pristine, marine-influenced atmosphere during wet season, and vulnerable system affected by periodic intrusions anthropogenic pollution dry provides an opportunity to investigate some fundamental aspects boundary-layer chemical processes. This first simultaneous hourly measurements concentrations, fluxes deposition velocities inorganic trace...