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    Academic Journals

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• Atmospheric observations consistent with reported decline in the UK's methane emissions (2013-2020).

  Authors:Mark F. Lunt, Alistair J. Manning, Grant Allen, Tim Arnold, Stéphane J.-B. Bauguitte, Hartmut Boesch, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 21) Peer-Reviewed

  Nov. 5, 2021395 words Brief article Atmospheric measurements can be used as a tool to evaluate national greenhouse gas inventories through inverse modelling. Using 8 years of continuous methane (CH.sub.4) concentration data, this work assesses the United...

• In situ ozone production is highly sensitive to volatile organic compounds in Delhi, India.

  Authors:Beth S. Nelson, Gareth J. Stewart, Will S. Drysdale, Mike J. Newland, Adam R. Vaughan, Rachel E. Dunmore, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 17) Peer-Reviewed

  Sept. 13, 2021485 words Article The Indian megacity of Delhi suffers from some of the poorest air quality in the world. While ambient NO.sub.2 and particulate matter (PM) concentrations have received considerable attention in the city, high...

• PM.sub.1 composition and source apportionment at two sites in Delhi, India, across multiple seasons.

  Authors:Ernesto Reyes-Villegas, Upasana Panda, Eoghan Darbyshire, James M. Cash, Rutambhara Joshi, Ben Langford, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 15) Peer-Reviewed

  Aug. 5, 2021544 words Article Air pollution in urban environments has been shown to have a negative impact on air quality and human health, particularly in megacities. Over recent decades, Delhi, India, has suffered high atmospheric pollution, with...

• Emissions of intermediate-volatility and semi-volatile organic compounds from domestic fuels used in Delhi, India.

  Authors:Gareth J. Stewart, Beth S. Nelson, W. Joe F. Acton, Adam R. Vaughan, Naomi J. Farren, James R. Hopkins, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 4) Peer-Reviewed

  Feb. 18, 2021402 words Brief article Biomass burning emits significant quantities of intermediate-volatility and semi-volatile organic compounds (I/SVOCs) in a complex mixture, probably containing many thousands of chemical species. These components are...

• Spatial and temporal variability of urban fluxes of methane, carbon monoxide and carbon dioxide above London, UK

  Authors:Carole Helfter, Anja H. Tremper, Christoforos H. Halios, Simone Kotthaus, Alex Bjorkegren, C. Sue B. Grimmond, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 16) Peer-Reviewed

  Aug. 24, 2016397 words Brief article We report on more than 3 years of measurements of fluxes of methane (CH.sub.4 ), carbon monoxide (CO) and carbon dioxide (CO.sub.2) taken by eddy-covariance in central London, UK. Mean annual emissions of CO.sub.2 in...

• Model simulations of cooking organic aerosol (COA) over the UK using estimates of emissions based on measurements at two sites in London

  Authors:Riinu Ots, Massimo Vieno, James D. Allan, Stefan Reis, Eiko Nemitz, Dominique E. Young, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 21) Peer-Reviewed

  Nov. 7, 2016459 words Brief article Cooking organic aerosol (COA) is currently not included in European emission inventories. However, recent positive matrix factorization (PMF) analyses of aerosol mass spectrometer (AMS) measurements have suggested...

• Characterization of ozone deposition to a mixed oak-hornbeam forest - flux measurements at five levels above and inside the canopy and their interactions with nitric oxide

  Authors:Angelo Finco, Mhairi Coyle, Eiko Nemitz, Riccardo Marzuoli, Maria Chiesa, Benjamin Loubet, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 24) Peer-Reviewed

  Dec. 18, 2018353 words Author abstract, Bri...

  A 1-month field campaign of ozone (O.sub.3) flux measurements along a five-level vertical profile above, inside and below the canopy was run in a mature broadleaf forest of the Po Valley, northern Italy. The study...

• Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling

  Authors:Chris R. Flechard, Andreas Ibrom, Ute M. Skiba, Wim de Vries, Marcel van Oijen, David R. Cameron, et al.From:Biogeosciences (Vol. 17, Issue 6) Peer-Reviewed

  Mar. 26, 2020510 words Brief article The impact of atmospheric reactive nitrogen (N.sub.r) deposition on carbon (C) sequestration in soils and biomass of unfertilized, natural, semi-natural and forest ecosystems has been much debated. Many previous results...

• The high-frequency response correction of eddy covariance fluxes - Part 1: An experimental approach and its interdependence with the time-lag estimation.

  Authors:Olli Peltola, Toprak Aslan, Andreas Ibrom, Eiko Nemitz, Ãllar Rannik, and Ivan MammarellaFrom:Atmospheric Measurement Techniques (Vol. 14, Issue 7) Peer-Reviewed

  July 28, 2021395 words Brief article The eddy covariance (EC) technique has emerged as the prevailing method to observe the ecosystem-atmosphere exchange of gases, heat and momentum. EC measurements require rigorous data processing to derive the fluxes that...

• Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 2: Untangling climatic, edaphic, management and nitrogen deposition effects on carbon sequestration potentials.

  Authors:Chris R. Flechard, Marcel van Oijen, David R. Cameron, Wim de Vries, Andreas Ibrom, Nina Buchmann, et al.From:Biogeosciences (Vol. 17, Issue 6) Peer-Reviewed

  Mar. 26, 2020386 words Brief article The effects of atmospheric nitrogen deposition (N.sub.dep) on carbon (C) sequestration in forests have often been assessed by relating differences in productivity to spatial variations of N.sub.dep across a large...

• The import and export of organic nitrogen species at a Scottish ombrotrophic peatland

  Authors:Rebecca M. McKenzie, J. Neil Cape, Julia Drewer, Kerry J. Dinsmore, Eiko Nemitz, Y. Sim Tang, et al.From:Biogeosciences (Vol. 13, Issue 8) Peer-Reviewed

  Apr. 21, 2016254 words Brief article Dissolved organic nitrogen (DON) contributes significantly to the overall nitrogen budget, but is not routinely measured in precipitation or stream water. In order to investigate the contribution of DON to the...

• A measurement-based verification framework for UK greenhouse gas emissions: an overview of the Greenhouse gAs Uk and Global Emissions (GAUGE) project

  Authors:Paul I. Palmer, Simon O'Doherty, Grant Allen, Keith Bower, Hartmut Bosch, Martyn P. Chipperfield, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 16) Peer-Reviewed

  Aug. 17, 2018488 words Brief article, Repor...

  We describe the motivation, design, and execution of the Greenhouse gAs Uk and Global Emissions (GAUGE) project. The overarching scientific objective of GAUGE was to use atmospheric data to estimate the magnitude,...

• Process-based modelling of NH.sub.3 exchange with grazed grasslands

  Authors:Massimo Vieno, Ruth M. Doherty, Celia Milford, Eiko Nemitz, Marsailidh M. Twigg, and Mark A. SuttonFrom:Biogeosciences (Vol. 14, Issue 18) Peer-Reviewed

  Sept. 21, 2017394 words Author abstract, Bri... In this study the GAG model, a process-based ammonia (NH.sub.3) emission model for urine patches, was extended and applied for the field scale. The new model (GAG_field) was tested over two modelling periods, for which...

• Emissions of non-methane volatile organic compounds from combustion of domestic fuels in Delhi, India.

  Authors:Gareth J. Stewart, W. Joe F. Acton, Beth S. Nelson, Adam R. Vaughan, James R. Hopkins, Rahul Arya, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 4) Peer-Reviewed

  Feb. 18, 2021269 words Brief article Twenty-nine different fuel types used in residential dwellings in northern India were collected from across Delhi (76 samples in total). Emission factors of a wide range of non-methane volatile organic compounds (NMVOCs)...

• Isoprene emission potentials from European oak forests derived from canopy flux measurements: an assessment of uncertainties and inter-algorithm variability

  Authors:Ben Langford, James Cash, W. Joe F. Acton, Amy C. Valach, C. Nicholas Hewitt, Silvano Fares, et al.From:Biogeosciences (Vol. 14, Issue 23) Peer-Reviewed

  Dec. 8, 2017612 words Author abstract, Bri... 970LBiogenic emission algorithms predict that oak forests account for ∼ 70 % of the total European isoprene budget. Yet the isoprene emission potentials (IEPs) that underpin these model estimates are...

• The high-frequency response correction of eddy covariance fluxes - Part 2: An experimental approach for analysing noisy measurements of small fluxes.

  Authors:Toprak Aslan, Olli Peltola, Andreas Ibrom, Eiko Nemitz, Ãllar Rannik, and Ivan MammarellaFrom:Atmospheric Measurement Techniques (Vol. 14, Issue 7) Peer-Reviewed

  July 28, 2021474 words Article Fluxes measured with the eddy covariance (EC) technique are subject to flux losses at high frequencies (low-pass filtering). If not properly corrected for, these result in systematically biased ecosystem-atmosphere gas...

• Impacts of the 2014-2015 Holuhraun eruption on the UK atmosphere

  Authors:Marsailidh M. Twigg, Evgenia Ilyinskaya, Sonya Beccaceci, David C. Green, Matthew R. Jones, Ben Langford, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 17) Peer-Reviewed

  Sept. 14, 2016559 words Brief article Volcanic emissions, specifically from Iceland, pose a pan-European risk and are on the UK National Risk Register due to potential impacts on aviation, public health, agriculture, the environment and the economy, from...

• Validity and limitations of simple reaction kinetics to calculate concentrations of organic compounds from ion counts in PTR-MS.

  Authors:Rupert Holzinger, W. Joe F. Acton, William J. Bloss, Martin Breitenlechner, Leigh R. Crilley, Sébastien Dusanter, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 11) Peer-Reviewed

  Nov. 27, 2019360 words Brief article In September 2017, we conducted a proton-transfer-reaction mass-spectrometry (PTR-MS) intercomparison campaign at the CESAR observatory, a rural site in the central Netherlands near the village of Cabauw. Nine research...

• Vertical distribution of aerosol optical properties in the Po Valley during the 2012 summer campaigns

  Authors:Silvia Bucci, Paolo Cristofanelli, Stefano Decesari, Angela Marinoni, Silvia Sandrini, Alfred Wiedensohler, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 8) Peer-Reviewed

  Apr. 20, 2018566 words Author abstract, Bri... Studying the vertical distribution of aerosol particle physical and chemical properties in the troposphere is essential to understand the relative importance of local emission processes vs. long-range transport for...

• Measurement and modelling of the dynamics of NH.sub.3 surface-atmosphere exchange over the Amazonian rainforest.

  Authors:Robbie Ramsay, Chiara F. Di Marco, Mathew R. Heal, Matthias Sörgel, Paulo Artaxo, Meinrat O. Andreae, et al.From:Biogeosciences (Vol. 18, Issue 9) Peer-Reviewed

  May 6, 2021304 words Brief article Local and regional modelling of NH.sub.3 surface exchange is required to quantify nitrogen deposition to, and emissions from, the biosphere. However, measurements and model parameterisations for many remote ecosystems -...