Search Results - "Theobald, R"
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An evaluation of European nitrogen and sulfur wet deposition and their trends estimated by six chemistry transport models for the period 1990–2010
Published in Atmospheric chemistry and physics (2019)“…The wet deposition of nitrogen and sulfur in Europe for the period 1990–2010 was estimated by six atmospheric chemistry transport models (CHIMERE, CMAQ, EMEP…”
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Eurodelta multi-model simulated and observed particulate matter trends in Europe in the period of 1990–2010
Published in Atmospheric chemistry and physics (07-06-2022)“…The Eurodelta-Trends (EDT) multi-model experiment, aimed at assessing the efficiency of emission mitigation measures in improving air quality in Europe…”
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Modeled deposition of nitrogen and sulfur in Europe estimated by 14 air quality model systems: evaluation, effects of changes in emissions and implications for habitat protection
Published in Atmospheric chemistry and physics (17-07-2018)“…The evaluation and intercomparison of air quality models is key to reducing model errors and uncertainty. The projects AQMEII3 and EURODELTA-Trends, in the…”
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Study of the Effect of Different Atmospheric Conditions on the Temporal Evolution of the Mixing Layer over Madrid during the Year 2020 by Means of Two Different Methods: Ceilometer Signals and the ECMWF-IFS Meteorological Model
Published in Remote sensing (Basel, Switzerland) (01-12-2023)“…Atmospheric aerosols are one of the main factors that contribute to poor air quality. These aerosols are mostly concentrated within the atmospheric boundary…”
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Trends of inorganic and organic aerosols and precursor gases in Europe: insights from the EURODELTA multi-model experiment over the 1990–2010 period
Published in Geoscientific Model Development (29-11-2019)“…In the framework of the EURODELTA-Trends (EDT) modeling experiment, several chemical transport models (CTMs) were applied for the 1990–2010 period to…”
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Improving the spatial resolution of air-quality modelling at a European scale – development and evaluation of the Air Quality Re-gridder Model (AQR v1.1)
Published in Geoscientific Model Development (16-12-2016)“…Currently, atmospheric chemistry and transport models (ACTMs) used to assess impacts of air quality, applied at a European scale, lack the spatial resolution…”
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Critical loads of nitrogen deposition and critical levels of atmospheric ammonia for semi-natural Mediterranean evergreen woodlands
Published in Biogeosciences (28-03-2012)“…Nitrogen (N) has emerged in recent years as a key factor associated with global changes, with impacts on biodiversity, ecosystems functioning and human health…”
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Remote sensing of LAI, chlorophyll and leaf nitrogen pools of crop- and grasslands in five European landscapes
Published in Biogeosciences (07-10-2013)“…Leaf nitrogen and leaf surface area influence the exchange of gases between terrestrial ecosystems and the atmosphere, and play a significant role in the…”
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Farm nitrogen balances in six European landscapes as an indicator for nitrogen losses and basis for improved management
Published in Biogeosciences (20-12-2012)“…Improved management of nitrogen (N) in agriculture is necessary to achieve a sustainable balance between the production of food and other biomass, and the…”
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Assessment of the Effects of the Spanish National Air Pollution Control Programme on Air Quality
Published in Atmosphere (01-02-2021)“…During the last few decades, European legislation has driven progress in reducing air pollution in Europe through emission mitigation measures. In this paper,…”
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Atomic Imaging of Carbon-Supported Pt, Pt/Co, and Ir@Pt Nanocatalysts by Atom-Probe Tomography
Published in ACS catalysis (07-02-2014)“…Atom probe tomography (APT) has been used to characterize commercially prepared Pt, Pt/Co alloy, and Ir@Pt core–shell nanoparticles supported on…”
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Spatial and temporal variability of nitrous oxide emissions in a mixed farming landscape of Denmark
Published in Biogeosciences (07-08-2012)“…Nitrous oxide (N2O) emissions from agricultural land are variable at the landscape scale due to variability in land use, management, soil type, and topography…”
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Cerebral MR Venography: Normal Anatomy and Potential Diagnostic Pitfalls
Published in American journal of neuroradiology : AJNR (01-01-2000)“…MR venography is often used to examine the intracranial venous system, particularly in the evaluation of dural sinus thrombosis. The purpose of this study was…”
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Modelling agro-forestry scenarios for ammonia abatement in the landscape
Published in Environmental research letters (01-12-2014)“…Ammonia emissions from livestock production can have negative impacts on nearby protected sites and ecosystems that are sensitive to eutrophication and…”
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Ammonia emissions from seabird colonies
Published in Geophysical research letters (01-05-2007)“…Ammonia emissions were measured from two entire seabird colonies with contrasting species assemblages, to ascertain the ammonia volatilisation potentials among…”
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Estimation of nitrogen budgets for contrasting catchments at the landscape scale
Published in Biogeosciences (09-01-2013)“…A comprehensive assessment of nitrogen (N) flows at the landscape scale is fundamental to understand spatial interactions in the N cascade and to inform the…”
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Temporal variability in bioassays of the stomatal ammonia compensation point in relation to plant and soil nitrogen parameters in intensively managed grassland
Published in Biogeosciences (01-01-2009)“…The exchange of ammonia between crop canopies and the atmosphere depends on a range of plant parameters and climatic conditions. However, little is known about…”
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Ammonia fluxes in relation to cutting and fertilization of an intensively managed grassland derived from an inter-comparison of gradient measurements
Published in Biogeosciences (01-01-2009)“…Quantification of ammonia (NH3) land-atmosphere exchange is required for atmospheric modelling and assessment of nitrogen deposition, yet flux measurement…”
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An intercomparison of models used to simulate the short-range atmospheric dispersion of agricultural ammonia emissions
Published in Environmental modelling & software : with environment data news (01-11-2012)“…Ammonia emitted into the atmosphere from agricultural sources can have an impact on nearby sensitive ecosystems, either through elevated ambient concentrations…”
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Ammonia emissions from a Cape fur seal colony, Cape Cross, Namibia
Published in Geophysical research letters (01-02-2006)“…Large animal colonies are significant sources of atmospheric NH3 that can potentially increase the nitrogen status of nearby ecosystems. Atmospheric NH3…”
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