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Browsing by Author "Centre for Atmospheric and Climate Physics Research"
Now showing items 181-200 of 432
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Insights into the deterministic skill of air quality ensembles from the analysis of AQMEII data
Kioutsioukis, I.; Im, U.; Solazzo, E.; Bianconi, R.; Badia, A.; Balzarini, A.; Baró, R.; Bellasio, R.; Brunner, D.; Chemel, Charles; Curci, G.; Denier van der Gon, H.; Flemming, J.; Forkel, R.; Giordano, L.; Jiménez-Guerrero, P.; Hirtl, M.; Jorba, O.; Manders-Groot, A.; Neal, L.; Pérez, J. L.; Pirovano, G.; San Jose, R.; Savage, N.; Schroder, W.; Sokhi, Ranjeet; Syrakov, D.; Tuccella, P.; Werhahn, J.; Wolke, R.; Hogrefe, C.; Galmarini, S. (2016-12-20)Simulations from chemical weather models are subject to uncertainties in the input data (e.g. emission inventory, initial and boundary conditions) as well as those intrinsic to the model (e.g. physical parameterization, ... -
An integrated air quality forecast system for a metropolitan area
Carnevale, C.; Finzi, G.; Pisoni, E.; Singh, V.; Volta, M. (2011-12-01)Air quality forecasting is an important issue in environmental research, due to the effects that air pollutants have on population health. To deal with this topic, in this work an integrated modelling system has been ... -
Integrating genomic binding site predictions using real-valued meta classifiers
Sun, Yi.; Robinson, M.; Adams, R.G.; Kaye, Paul H.; Te Boekhorst, R.; Rust, A.G.; Davey, N. (2009)Currently the best algorithms for predicting transcription factor binding sites in DNA sequences are severely limited in accuracy. There is good reason to believe that predictions from different classes of algorithms could ... -
Interactions between downslope flows and a developing cold-air pool
Burns, Paul; Chemel, C. (2015-01-01)A numerical model has been used to characterize the development of a region of enhanced cooling in an alpine valley with a width of order (Formula presented.) km, under decoupled stable conditions. The region of enhanced ... -
Interactions between the night time valley-wind system and a developing cold-air pool
Arduini, Gabriele; Staquet, C.; Chemel, Charles (2016-10-01)The Weather Research and Forecast (WRF) numerical model is used to characterize the influence of a thermally-driven down-valley flow on a developing cold-air pool in an idealized alpine valley decoupled from the atmosphere ... -
An intercomparison of aerosol light extinction and 180 degrees backscatter as derived using in situ instruments and Raman lidar during the INDOEX field campaign
Masonis, S.J.; Franke, K.; Ansmann, A.; Mueller, D.; Althausen, D.; Ogren, J.A.; Jefferson, A.; Sheridan, P.J. (2002)[1] Aircraft in situ and Raman lidar profiles of aerosol light extinction (sigma(ep)) and 180degrees backscattering (beta(p)) are compared for 6 days during the Indian Ocean Experiment (INDOEX). The measurements of sigma(ep) ... -
Intercomparison of Multiple UV-LIF Spectrometers using the Aerosol Challenge Simulator
Forde, Elizabeth; Gallagher, Martin; Walker, Maurice; Foot, Virginia; Attwood, Alexis; Granger, Gary; Sarda-Esteve, Roland; Stanley, Warren; Kaye, Paul H.; Topping, David (2019-12-09)Measurements of primary biological aerosol particles (PBAPs) have been conducted worldwide using ultraviolet light-induced fluorescence (UV-LIF) spectrometers. However, how these instruments detect and respond to known ... -
Interpulse interference and passive laser pulse shapers
Martin, William Eugene; Milam, D. (1976-12-01)Passive pulse shapers including Fabry-Perot etalons, double-etalons, and classical beam splitters are examined both theoretically and experimentally for their temporal behavior. For temporally and spatially overlapped ... -
Introducing phase tracing into a computational method which combines ray-tracing with diffraction on facets
Hesse, Evelyn; Ulanowski, Zbigniew; Clarke, A.J.M.; Havemann, S.; Kaye, Paul H. (University of Bremen, 2005)The viability of introducing phase tracing into our ray tracing with diffraction on facets model is investigated. In order to prove the method, Monte Carlo ray-tracing results for a slit, based on our diffraction formula ... -
Inversion with regularization for the retrieval of tropospheric aerosol parameters from multiwavelength lidar sounding
Veselovskii, Igor; Kolgotin, A.; Griaznov, V.; Mueller, D.; Wandinger, U.; Whiteman, D.N. (2002-06-20)We present an inversion algorithm for the retrieval of particle size distribution parameters, i.e., mean (effective) radius, number, surface area, and volume concentration, and complex refractive index from multiwavelength ... -
Investigation by surface enhanced Raman spectroscopy of the effect of oxygen or hydrogen plasmas on the surface chemistry of adsorbate-covered gold island films
Hesse, E.; Creighton, J.A. (1999)The effects of radio-frequency-excited oxygen and hydrogen plasmas on gold island films with adsorbed CN-, thiophenate, or p-nitrobenzoate ions have been investigated by surface-enhanced Raman spectroscopy (SERS). An oxygen ... -
Investigation into Single Scattering Properties of Airborne Saharan Dust Particles
McCall, D.; Ulanowski, Z.; Hesse, E.; Stopford, C.; Kandler, K.; Kaye, Paul H. (2008)The phase functions of single mineral dust particles levitated in an electrodynamic balance have been measured. Normalized phase functions and the asymmetry parameter could be determined because nearly the full range of ... -
Investigation of cyanide ions adsorbed on platinum and palladium coated silver island films by surface-enhanced Raman spectroscopy
Hesse, E.; Creighton, J.A. (1999)Bimetallic films prepared by vacuum-depositing platinum onto silver island films have been evaluated for surface-enhanced Raman scattering (SERS), using CN− as the adsorbate. For platinum overlayers with mean thickness ... -
Investigation of the diurnal pattern of the vertical distribution of pollen in the lower troposphere using LIDAR
Noh, Y. M.; Lee, H.; Mueller, D.; Lee, K.; Shin, D.; Shin, S.; Choi, T. J.; Choi, Y. J.; Kim, K. R. (2013)The diurnal pattern of the vertical distribution of biogenic pollen in the lower troposphere was investigated by LIDAR. Meteorological data were taken at the ground. Pollen concentrations were measured at the surface using ... -
Isospectral mapping for quantum systems with energy point spectra to polynomial quantum harmonic oscillators
Steuernagel, Ole; Klimov, Andrei (2021-03-15)We show that a polynomial Hˆ(N) of degree N of a harmonic oscillator hamiltonian allows us to devise a fully solvable continuous quantum system for which the first N discrete energy eigenvalues can be chosen at will. In ... -
Lagrangian modelling of plume chemistry for secondary pollutants in large industrial plumes
Middleton, D.R.; Jones, A.R.; Redington, A.L.; Thomson, D.J.; Sokhi, R.S.; Luhana, L.; Fisher, B. (2008)Industrial sources of nitrogen oxides range from boilers and metal furnaces to fossil fuel power stations. Current UK regulatory practice for these plumes adopts a fixed proportion of nitrogen dioxide, as a simple and ... -
Large aperture harmonic conversion experiments at Lawrence Livermore National Laboratory
Linford, G.J.; Johnson, B.C.; Hildum, J.S.; Synder, K.; Boyd, R.; Smith, W.L.; Hunt, J.T.; Speck, D.R.; Swain, J.E.; Martin, Bill (1981-12) -
Large aperture harmonic conversion experiments at Lawrence Livermore National Lanoratory
Linford, G.J.; Johnson, B.C.; Hildum, J.S.; Martin, William Eugene; Snyder, K.; Boyd, R.D.; Smith, W.L.; Vercimak, C.L.; Eimerl, D.; Hunt, J.T. (1982-10)Large aperture harmonic conversion experiments to 2 omega (532 nm), 3 omega (355 nm), 4 omega (266 nm) on the Argus laser at the Lawrence Livermore National Laboratory are described. Harmonically converted energies of up ... -
Large aperture harmonic conversion experiments at LLNL - comments
Linford, G.J.; Johnson, B.C.; Hildum, J.S.; Martin, Bill; Snyder, K.; Boyd, R.D.; Smith, W.L.; Vercimak, C.L.; Eimerl, D.; Hunt, J.T.; Seka, W.; Craxton, R.S.; Jacobs, S.D.; Lund, L.D.; McCrory, R.L.; Soures, J.M. (1983-07) -
Laser guiding of electron beams in the advanced test acceleration
Caporaso, G.J.; Rainer, F.; Martin, William Eugene; Prono, D.S.; Cole, A.G. (1986)The recently demonstrated technique of laser guiding has been used to propagate successfully a 10-kA relativistic electron beam 95 m through the Advanced Test Accelerator and postaccelerator beamline. The maximum transverse ...