Institution
The Cyprus Institute
Other•Nicosia, Cyprus•
About: The Cyprus Institute is a other organization based out in Nicosia, Cyprus. It is known for research contribution in the topics: Aerosol & Environmental science. The organization has 418 authors who have published 1252 publications receiving 32586 citations.
Topics: Aerosol, Environmental science, Lattice QCD, Geology, Nucleon
Papers published on a yearly basis
Papers
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University of Toronto1, Goddard Space Flight Center2, Belgian Institute for Space Aeronomy3, Katholieke Universiteit Leuven4, Heidelberg University5, Instituto Nacional de Técnica Aeroespacial6, Chiba University7, Japan Agency for Marine-Earth Science and Technology8, University of Bremen9, Royal Netherlands Meteorological Institute10, Max Planck Society11, Washington State University12, Fukuoka University13, The Cyprus Institute14
TL;DR: In this paper, the authors present intercomparison results for formaldehyde (HCHO) slant column measurements performed during the Cabauw Intercomparisons campaign of Nitrogen Dioxide measuring Instruments (CINDI) that took place in the Netherlands during two months, nine atmospheric research groups simultaneously operated MAX-DOAS (MultiAXis Differential Optical Absorption Spectroscopy) instruments of various designs to record UV-visible spectra of scattered sunlight at different elevation angles.
Abstract: . We present intercomparison results for formaldehyde (HCHO) slant column measurements performed during the Cabauw Intercomparison campaign of Nitrogen Dioxide measuring Instruments (CINDI) that took place in Cabauw, the Netherlands, in summer 2009. During two months, nine atmospheric research groups simultaneously operated MAX-DOAS (MultiAXis Differential Optical Absorption Spectroscopy) instruments of various designs to record UV-visible spectra of scattered sunlight at different elevation angles that were analysed using common retrieval settings. The resulting HCHO data set was found to be highly consistent, the mean difference between instruments generally not exceeding 15% or 7.5 × 1015 molec cm−2, for all viewing elevation angles. Furthermore, a sensitivity analysis was performed to investigate the uncertainties in the HCHO slant column retrieval when varying key input parameters such as the molecular absorption cross sections, correction terms for the Ring effect or the width and position of the fitting interval. This study led to the identification of potentially important sources of errors associated with cross-correlation effects involving the Ring effect, O4, HCHO and BrO cross sections and the DOAS closure polynomial. As a result, a set of updated recommendations was formulated for HCHO slant column retrieval in the 336.5–359 nm wavelength range. To conclude, an error budget is proposed which distinguishes between systematic and random uncertainties. The total systematic error is estimated to be of the order of 20% and is dominated by uncertainties in absorption cross sections and related spectral cross-correlation effects. For a typical integration time of one minute, random uncertainties range between 5 and 30%, depending on the noise level of individual instruments.
84 citations
01 Apr 2013
TL;DR: In this article, the EMAC atmospheric chemistry-general circulation model was used, with circulation dynamics nudged towards ERA-Interim reanalysis data, to model the global atmospheric dispersion and deposition of radionuclides released from the Fukushima Dai-ichi nuclear power plant accident.
Abstract: . We modeled the global atmospheric dispersion and deposition of radionuclides released from the Fukushima Dai-ichi nuclear power plant accident. The EMAC atmospheric chemistry – general circulation model was used, with circulation dynamics nudged towards ERA-Interim reanalysis data. We applied a resolution of approximately 0.5 degrees in latitude and longitude (T255). The model accounts for emissions and transport of the radioactive isotopes 131 I and 137 Cs, and removal processes through precipitation, particle sedimentation and dry deposition. In addition, we simulated the release of 133 Xe, a noble gas that can be regarded as a passive transport tracer of contaminated air. The source terms are based on Chino et al. (2011) and Stohl et al. (2012); especially the emission estimates of 131 I are associated with a high degree of uncertainty. The calculated concentrations have been compared to station observations by the Comprehensive Nuclear-Test-Ban Treaty Organisation (CTBTO). We calculated that about 80% of the radioactivity from Fukushima which was released to the atmosphere deposited into the Pacific Ocean. In Japan a large inhabited land area was contaminated by more than 40 kBq m -2 . We also estimated the inhalation and 50-year dose by 137 Cs, 134 Cs and 131 I to which the people in Japan are exposed.
84 citations
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TL;DR: One additional figure, typos corrected, version to appear in Phys. Rev. D. 14 pages and 14 figures as discussed by the authors ; text overlap with arXiv:1309.2256
Abstract: One additional figure, typos corrected, version to appear in Phys. Rev. D. 14 pages and 14 figures. arXiv admin note: text overlap with arXiv:1309.2256
83 citations
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TL;DR: In this article, a series of near real-time and off-line biomass burning tracers are analyzed during intense wood burning events in Athens, and the suitability of these tracers was evaluated when the prevailing meteorological conditions with low dispersion and deposition mechanisms (low wind speed, absence of precipitation) were associated with high biomass burning emissions at nighttime.
83 citations
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TL;DR: In this paper, a four-flavour lattice calculation of the leading-order hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, $ a_{\mu}^{\mathrm{hvp}} $ fixme, arising from quark-connected Feynman graphs is presented.
Abstract: We present a four-flavour lattice calculation of the leading-order hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, $ a_{\mu}^{\mathrm{hvp}} $
, arising from quark-connected Feynman graphs. It is based on ensembles featuring N
f
= 2 + 1 + 1 dynamical twisted mass fermions generated by the European Twisted Mass Collaboration (ETMC). Several light quark masses are used in order to yield a controlled extrapolation to the physical pion mass. We employ three lattice spacings to examine lattice artefacts and several different volumes to check for finite-size effects. Incorporating the complete first two generations of quarks allows for a direct comparison with phenomenological determinations of $ a_{\mu}^{\mathrm{hvp}} $
. Our final result including an estimate of the systematic uncertainty $ a_{\mu}^{\mathrm{hvp}} $
= 6.74(21)(18) · 10−8 shows a good overall agreement with these computations.
82 citations
Authors
Showing all 459 results
Name | H-index | Papers | Citations |
---|---|---|---|
Philippe Ciais | 149 | 965 | 114503 |
Jonathan Williams | 102 | 613 | 41486 |
Jos Lelieveld | 100 | 570 | 37657 |
Andrew N. Nicolaides | 90 | 572 | 30861 |
Efstathios Stiliaris | 88 | 340 | 25487 |
Leonard A. Barrie | 74 | 177 | 17356 |
Nikos Mihalopoulos | 69 | 280 | 15261 |
Karl Jansen | 57 | 498 | 11874 |
Jean Sciare | 56 | 129 | 9374 |
Euripides G. Stephanou | 54 | 128 | 14235 |
Lefkos T. Middleton | 54 | 184 | 15683 |
Elena Xoplaki | 53 | 129 | 12097 |
Theodoros Christoudias | 50 | 197 | 7765 |
Dimitris Drikakis | 49 | 286 | 7136 |
George K. Christophides | 48 | 127 | 11099 |