Browsing by Author "Centre for Atmospheric and Climate Physics Research"

Now showing items 121-140 of 432

    • Evaluation of machine learning algorithms for classification of primary biological aerosol using a new UV-LIF spectrometer 

      Ruske, Simon; Topping, D. O.; Foot, V.E.; Kaye, Paul; Stanley, Warren; Crawford, I.P.; Morse, Andrew; Gallagher, Martin W. (2017-03-03)
      Characterisation of bioaerosols has important implications within environment and public health sectors. Recent developments in ultraviolet light-induced fluorescence (UV-LIF) detectors such as the Wideband Integrated ...

    • Evaluation of Machine Learning Algorithms for Classification of Primary Biological Aerosol using a new UV-LIF spectrometer 

      Ruske, Simon; Topping, D. O.; Foot, V.E.; Kaye, Paul; Stanley, Warren; Crawford, I.P.; Morse, Andrew; Gallagher, Martin W. (2016-07-13)
      Characterisation of bio-aerosols has important implications within Environment and Public Health sectors. Recent developments in Ultra-Violet Light Induced Fluorescence (UV-LIF) detectors such as the Wideband Integrated ...

    • Evaluation of operational on-line-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2 : Part I: Ozone 

      Im, Ulas; Bianconi, Roberto; Solazzo, Efisio; Kioutsioukis, Ioannis; Badia, Alba; Balzarini, Alessandra; Baró, Rocío; Bellasio, Roberto; Brunner, Dominik; Chemel, C.; Curci, Gabriele; Flemming, Johannes; Forkel, Renate; Giordano, Lea; Jiménez-Guerrero, Pedro; Hirtl, Marcus; Hodzic, Alma; Honzak, Luka; Jorba, Oriol; Knote, Christoph; Kuenen, Jeroen J.P.; Makar, Paul A.; Manders-Groot, Astrid; Neal, Lucy; Pérez, Juan L.; Pirovano, Guido; Pouliot, George; San Jose, Roberto; Savage, Nicholas; Schroder, Wolfram; Sokhi, Ranjeet S.; Syrakov, Dimiter; Torian, Alfreida; Tuccella, Paolo; Werhahn, Johannes; Wolke, Ralf; Yahya, Khairunnisa; Zabkar, Rahela; Zhang, Yang; Zhang, Junhua; Hogrefe, Christian; Galmarini, Stefano (2015-08)
      The second phase of the Air Quality Model Evaluation International Initiative (AQMEII) brought together sixteen modeling groups from Europe and North America, running eight operational online-coupled air quality models ...

    • Evaluation of operational online-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2 : Part II: Particulate matter 

      Im, Ulas; Bianconi, Roberto; Solazzo, Efisio; Kioutsioukis, Ioannis; Badia, Alba; Balzarini, Alessandra; Baró, Rocío; Bellasio, Roberto; Brunner, Dominik; Chemel, C.; Curci, Gabriele; Denier van der Gon, Hugo; Flemming, Johannes; Forkel, Renate; Giordano, Lea; Jiménez-Guerrero, Pedro; Hirtl, Marcus; Hodzic, Alma; Honzak, Luka; Jorba, Oriol; Knote, Christoph; Makar, Paul A.; Manders-Groot, Astrid; Neal, Lucy; Pérez, Juan L.; Pirovano, Guido; Pouliot, George; San Jose, Roberto; Savage, Nicholas; Schroder, Wolfram; Sokhi, Ranjeet S.; Syrakov, Dimiter; Torian, Alfreida; Tuccella, Paolo; Wang, Kai; Werhahn, Johannes; Wolke, Ralf; Zabkar, Rahela; Zhang, Yang; Zhang, Junhua; Hogrefe, Christian; Galmarini, Stefano (2015-08)
      The second phase of the Air Quality Model Evaluation International Initiative (AQMEII) brought together seventeen modeling groups from Europe and North America, running eight operational online-coupled air quality models ...

    • Evaluation of the meteorological forcing used for the Air Quality Model Evaluation International Initiative (AQMEII) air quality simulations 

      Vautard, R.; Moran, M.D.; Solazzo, E.; Gilliam, R.C.; Matthias, V.; Bianconi, R.; Chemel, C.; Ferreira, J.; Geyer, B.; Hansen, A.B.; Jericevic, A.; Prank, M.; Segers, A.; Silver, J.D.; Werhahn, J.; Wolke, R.; Rao, S.T.; Galmarini, S. (2012)
      Accurate regional air pollution simulation relies strongly on the accuracy of the mesoscale meteorological simulation used to drive the air quality model. The framework of the Air Quality Model Evaluation International ...

    • Evaluation of the performance of different atmospheric chemical transport models and inter-comparison of nitrogen and sulphur deposition estimates for the UK 

      Dore, A.J.; Carslaw, D.C.; Braban, C.; Cain, M.; Chemel, C.; Conolly, C.; Derwent, R.G.; Griffiths, S.J.; Hall, J.; Hayman, G.; Lawrence, S.; Metcalfe, S.E.; Redington, A.; Simpson, D.; Sutton, M.A.; Sutton, P.; Tang, Y.S.; Vieno, M.; Werner, M.; Whyatt, J.D. (2015-10)
      An evaluation has been made of a number of contrasting atmospheric chemical transport models, of varying complexity, applied to estimate sulphur and nitrogen deposition in the UK. The models were evaluated by comparison ...

    • Evaluation of the performance of four chemical transport models in predicting the aerosol chemical composition in Europe in 2005 

      Prank, Marje; Sofiev, Mikhail; Tsyro, Svetlana; Hendriks, Carlijn; Semeena, Valiyaveetil; Vazhappilly Francis, Xavier; Butler, Tim; Denier van der Gon, Hugo; Friedrich, Rainer; Kong, Xin; Hendricks, Johannes; Lawrence, Mark; Righi, Mattia; Samaras, Zissis; Sausen, Robert; Kukkonen, Jaakko; Sokhi, Ranjeet (2016-05-18)
      Four regional chemistry transport models were applied to simulate the concentration and composition of particulate matter (PM) in Europe for 2005 with horizontal resolution 20 km. The modelled concentrations were compared ...

    • Evolution of cold-air-pooling processes in complex terrain 

      Burns, Paul; Chemel, C. (2014-03-01)
      Elucidating cold-air-pooling processes forms part of the longstanding problem of parametrizing the effects of complex terrain in larger-scale numerical models. The Weather Research and Forecasting model has been set-up and ...

    • Evolution of the ice phase in tropical altocumulus : SAMUM lidar observations over Cape Verde 

      Ansmann, A.; Tesche, Matthias; Seifert, P.; Althausen, D.; Engelmann, R.; Fruntke, J.; Wandinger, U.; Mattis, I.; Mueller, D. (2009-09-16)
      The formation of the ice phase in tropical altocumulus has been studied with multiwavelength aerosol-cloud Raman lidar, wind Doppler lidar, and radiosonde, providing information on geometrical and optical properties, cloud ...

    • Examination of the Community Multiscale Air Quality (CMAQ) model performance over the North American and European domains 

      Appel, K.W.; Chemel, C.; Roselle, S.J.; Vazhappilly Francis, Xavier; Hu, Rong-Ming; Sokhi, R.S.; Rao, S.T.; Galmarini, S. (2012)
      The CMAQ modeling system has been used to simulate the air quality for North America and Europe for the entire year of 2006 as part of the Air Quality Model Evaluation International Initiative (AQMEII). The operational ...

    • EXOhSPEC collimator mechanical design 

      Kawinkija, Adipthep; Buisset, Christophe; Jones, Hugh; Martin, Bill; Errmann, Ronny (SPIE, 2019-09-09)
      The Exoplanet High-Resolution Spectrograph (EXOhSPEC) is a high-resolution spectrograph for the characterisation of exoplanets with the Thai National Telescope. The folded version of this instrument comprises one triplet ...

    • EXOhSPEC folded design optimization and performance estimation 

      Lhospice, Esther; Buisset, Christophe; Jones, Hugh; Martin, Bill; Errmann, Ronny (SPIE, 2019-09-09)
      The EXOplanet high resolution SPECtrograph (EXOhSPEC) instrument is an echelle spectrograph dedicated to the detection of exoplanets by using the radial velocity method using 2m class telescopes. This spectrograph is ...

    • Explicit generation of unitary transformations in a single atom or molecule 

      Ramakrishna, V.; Ober, R.; Sun, X.; Steuernagel, O.; Botina, J.; Rabitz, H. (2000)
      A constructive procedure for generating a prescribed unitary transform via the optically driven evolution of a multilevel atom is described. Assuming a clean separation of the coupled levels, the procedure employs the ...

    • Exposure to ambient air pollution and elevated blood levels of gamma-glutamyl transferase in a large Austrian cohort 

      Sokhi, Ranjeet (2023-07-20)
      Gamma glutamyl transferase (GGT) is related to oxidative stress and an indicator for liver damage. We investigated the association between air pollution and GGT in a large Austrian cohort (N = 116,109) to better understand ...

    • Fabrication of single-crystal semiconductor optical waveguides by solid-state diffusion 

      Taylor, H.F.; Martin, William Eugene; Hall, D.B.; Smiley, V.N. (1972)
      Optical surface waveguides have been fabricated by diffusing selenium into single-crystal CdS substrates to produce graded-composition CdS Se crystals. Planar guides which confine a beam in one dimension and guides produced ...

    • Fake ice and levitation 

      Ulanowski, Z.; Hesse, E. (2003)

    • First correlated measurements of the shape and scattering properties of cloud particles using the new Particle Habit Imaging and Polar Scattering (PHIPS) probe 

      Abdelmonem, A.; Schnaiter, M.; Amsler, P.; Hesse, Evelyn; Meyer, J.; Leisner, T. (2011)
      Studying the radiative impact of cirrus clouds requires the knowledge of thelink between their microphysics and the single scattering properties of thecloud particles. Usually, this link is created by modeling the ...

    • Fluid-borne Particle Analysers 

      Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Hirst, Edwin (2008-10-14)
      This invention describes an improved method and apparatus for the analysis of fluid borne particles and which is especially suitable for the detection of airborne biological particles. In one aspect of the invention provides ...

    • Fluid-borne Particle Detector 

      Centre for Atmospheric and Climate Physics Research; Particle Instruments and diagnostics; Kaye, Paul H.; Stanley, Warren (2010-12)

    • Fluorescence of graded-band-gap CdSxSe1-x crystals produced by diffusion 

      Taylor, H.F.; Smiley, V.N.; Martin, William Eugene; Pawka, S.S. (1972)
      The fluorescence of CdSxSe1-x mixed crystals with band-gap gradients as large as 1200 eV/cm has been investigated at 77°K. The graded samples were produced by heating CdSe or CdSxSe1-x platelets in a sulfur-selenium ...