Works matching DE "OPTICAL properties of atmospheric aerosols"

Results: 210

Assessment of CNRM coupled ocean-atmosphere model sensitivity to the representation of aerosols.
Published in:
Climate Dynamics, 2018, v. 51, n. 7/8, p. 2877, doi. 10.1007/s00382-017-4054-6
By:
- Watson, Laura;
- Michou, Martine;
- Nabat, Pierre;
- Saint-Martin, David
Publication type:
Article
Relationship between aerosol and lightning over Indo-Gangetic Plain (IGP), India.
Published in:
Climate Dynamics, 2018, v. 50, n. 9/10, p. 3865, doi. 10.1007/s00382-017-3851-2
By:
- Lal, D. M.;
- Ghude, Sachin D.;
- Mahakur, M.;
- Waghmare, R. T.;
- Tiwari, S.;
- Srivastava, Manoj K.;
- Meena, G. S.;
- Chate, D. M.
Publication type:
Article
Variability of atmospheric aerosol optical depth over the Northern Tian Shan.
Published in:
Russian Meteorology & Hydrology, 2015, v. 40, n. 3, p. 180, doi. 10.3103/S1068373915030048
By:
- Sizov, N.;
- Akimenko, R.;
- Aref'ev, V.;
- Kashin, F.;
- Orozaliev, M.;
- Sinyakov, V.;
- Sorokina, L.
Publication type:
Article
Continental pollution in the Western Mediterranean basin: large variability of the aerosol single scattering albedo and influence on the direct shortwave radiative effect.
Published in:
Atmospheric Chemistry & Physics Discussions, 2016, v. 16, n. 4, p. 1, doi. 10.5194/acp-2016-47
By:
- Di Biagio, C.;
- Formenti, P.;
- Doppler, L.;
- Gaimoz, C.;
- Grand, N.;
- Ancellet, G.;
- Attié, J.-L.;
- Bucci, S.;
- Dubuisson, P.;
- Fierli, F.;
- Mallet, M.;
- Ravetta, F.
Publication type:
Article
How skillfully can we simulate drivers of aerosol direct climate forcing at the regional scale?
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 19, p. 27311, doi. 10.5194/acpd-15-27311-2015
By:
- Crippa, P.;
- Sullivan, R. C.;
- Thota, A.;
- Pryor, S. C.
Publication type:
Article
Ability of the 4-D-Var analysis of the GOSAT BESD XCO2 retrievals to characterize atmospheric CO2 at large and synoptic scales.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26273, doi. 10.5194/acpd-15-26273-2015
By:
- Massart, S.;
- Agustí-Panareda, A.;
- Heymann, J.;
- Buchwitz, M.;
- Chevallier, F.;
- Reuter, M.;
- Hilker, M.;
- Burrows, J. P.;
- Hase, F.;
- Desmet, F.;
- Feist, D. G.;
- Kivi, R.
Publication type:
Article
Transport across the tropical tropopause layer and convection.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26231, doi. 10.5194/acpd-15-26231-2015
By:
- Tissier, A.-S.;
- Legras, B.
Publication type:
Article
The importance of temporal collocation for the evaluation of aerosol models with observations.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26191, doi. 10.5194/acpd-15-26191-2015
By:
- Schutgens, N. A. J.;
- Partridge, D. G.;
- Stier, P.
Publication type:
Article
Using beryllium-7 to assess cross-tropopause transport in global models.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26131, doi. 10.5194/acpd-15-26131-2015
By:
- Liu, H.;
- Considine, D. B.;
- Horowitz, L. W.;
- Crawford, J. H.;
- Rodriguez, J. M.;
- Strahan, S. E.;
- Damon, M. R.;
- Steenrod, S. D.;
- Xu, X.;
- Kouatchou, J.;
- Carouge, C.;
- Yantosca, R. M.
Publication type:
Article
Multimodel emission metrics for regional emissions of short lived climate forcers.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26089, doi. 10.5194/acpd-15-26089-2015
By:
- Aamaas, B.;
- Berntsen, T. K.;
- Fuglestvedt, J. S.;
- Shine, K. P.;
- Bellouin, N.
Publication type:
Article
Observations of fluorescent aerosol-cloud interactions in the free troposphere at the Sphinx high Alpine research station, Jungfraujoch.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26067, doi. 10.5194/acpd-15-26067-2015
By:
- Crawford, I.;
- Lloyd, G.;
- Bower, K. N.;
- Connolly, P. J.;
- Flynn, M. J.;
- Kaye, P. H.;
- Choularton, T. W.;
- Gallagher, M. W.
Publication type:
Article
Towards understanding the variability in biospheric CO2 fluxes: using FTIR spectrometry and a chemical transport model to investigate the sources and sinks of carbonyl sulfide and its link to CO2.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 26025, doi. 10.5194/acpd-15-26025-2015
By:
- Wang, Y.;
- Deutscher, N. M.;
- Palm, M.;
- Warneke, T.;
- Notholt, J.;
- Baker, I.;
- Berry, J.;
- Suntharalingam, P.;
- Jones, N.;
- Mahieu, E.;
- Lejeune, B.;
- Campbell, J. E.;
- Wolf, A.;
- Kremser, S.
Publication type:
Article
Transport pathways from the Asian monsoon anticyclone to the stratosphere.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25981, doi. 10.5194/acpd-15-25981-2015
By:
- Garny, H.;
- Randel, W. J.
Publication type:
Article
What controls the vertical distribution of aerosol? Relationships between process sensitivity in HadGEM3-UKCA and inter-model variation from AeroCom Phase II.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25933, doi. 10.5194/acpd-15-25933-2015
By:
- Kipling, Z.;
- Stier, P.;
- Johnson, C. E.;
- Mann, G. W.;
- Bellouin, N.;
- Bauer, S. E.;
- Bergman, T.;
- Chin, M.;
- Diehl, T.;
- Ghan, S. J.;
- Iversen, T.;
- Kirkevåg, A.;
- Kokkola, H.;
- Liu, X.;
- Luo, G.;
- van Noije, T.;
- Pringle, K. J.;
- von Salzen1, K.;
- Schulz, M.;
- Seland, Ø.
Publication type:
Article
Simultaneous Retrievals of Polar Mesospheric Clouds (PMCs) with Ozone from OMI UV measurements.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25907, doi. 10.5194/acpd-15-25907-2015
By:
- Bak, J.;
- Liu, X.;
- Kim, J. H.;
- Deland, M. T.;
- Chance, K.
Publication type:
Article
Water vapour variability in the high-latitude upper troposphere - Part 2: Impact of volcanic emissions.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25873, doi. 10.5194/acpd-15-25873-2015
By:
- Sioris, C. E.;
- Zou, J.;
- McElroy, C. T.;
- Boone, C. D.;
- Sheese, P. E.;
- Bernath, P. F.
Publication type:
Article
Simulating secondary organic aerosol in a regional air quality model using the statistical oxidation model - Part 1: Assessing the influence of constrained multi-generational ageing.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25837, doi. 10.5194/acpd-15-25837-2015
By:
- Jathar, S. H.;
- Cappa, C. D.;
- Wexler, A. S.;
- Seinfeld, J. H.;
- Kleeman, M. J.
Publication type:
Article
Improved simulation of tropospheric ozone by a global-multi-regional two-way coupling model system.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25789, doi. 10.5194/acpd-15-25789-2015
By:
- Yan, Y. -Y.;
- Lin, J. -T.;
- Chen, J.;
- Hu, L.
Publication type:
Article
Sensitivity of nitrate aerosols to ammonia emissions and to nitrate chemistry: implications for present and future nitrate optical depth.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25739, doi. 10.5194/acpd-15-25739-2015
By:
- Paulot, F.;
- Ginoux, P.;
- Cooke, W. F.;
- Donner, L. J.;
- Fan, S.;
- Lin, M.;
- Mao, J.;
- Naik, V.;
- Horowitz, L. W.
Publication type:
Article
Aerosol optical properties in the southeastern United States in summer - Part 1: Hygroscopic growth.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25695, doi. 10.5194/acpd-15-25695-2015
By:
- Brock, C. A.;
- Wagner, N. L.;
- Anderson, B. E.;
- Attwood, A. R.;
- Beyersdorf, A.;
- Campuzano-Jost, P.;
- Carlton, A. G.;
- Day, D. A.;
- Diskin, G. S.;
- Gordon, T. D.;
- Jimenez, J. L.;
- Lack, D. A.;
- Liao, J.;
- Markovic, M. Z.;
- Middlebrook, A. M.;
- Ng, N. L.;
- Perring, A. E.;
- Richardson, M. S.;
- Schwarz, J. P.;
- Washenfelder, R. A.
Publication type:
Article
Atmospheric constraints on the methane emissions from the East Siberian Shelf.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25477, doi. 10.5194/acpd-15-25477-2015
By:
- Berchet, A.;
- Bousquet, P.;
- Pison, I.;
- Locatelli, R.;
- Chevallier, F.;
- Paris, J. -D.;
- Dlugokencky, E. J.;
- Laurila, T.;
- Hatakka, J.;
- Viisanen, Y.;
- Worthy, D. E. J.;
- Nisbet, E. G.;
- Fisher, R. E.;
- France, J. L.;
- Lowry, D.;
- Ivakhov, V.
Publication type:
Article
Stratospheric sulfate geoengineering enhances terrestrial gross primary productivity.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25627, doi. 10.5194/acpd-15-25627-2015
By:
- Xia, L.;
- Robock, A.;
- Tilmes, S.;
- Neely III, R. R.
Publication type:
Article
Nitrogen speciation in various types of aerosol in spring over the northwestern Pacific Ocean.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25583, doi. 10.5194/acpd-15-25583-2015
By:
- Luo, L.;
- Yao, X. H.;
- Gao, H. W.;
- Hsu, S. C.;
- Li, J. W.;
- Kao, S. -J.
Publication type:
Article
Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the MEGAPOLI summer and winter campaigns.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25547, doi. 10.5194/acpd-15-25547-2015
By:
- Fountoukis, C.;
- Megaritis, A. G.;
- Skyllakou, K.;
- Charalampidis, P. E.;
- van der Gon, H. A. C. Denier;
- Crippa, M.;
- Prévôt, A. S. H.;
- Freutel, F.;
- Wiedensohler, A.;
- Pilinis, C.;
- Pandis, S. N.
Publication type:
Article
Comparing model and measured ice crystal concentrations in orographic clouds during the INUPIAQ campaign.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25647, doi. 10.5194/acpd-15-25647-2015
By:
- Farrington, R. J.;
- Connolly, P. J.;
- Lloyd, G.;
- Bower, K. N.;
- Flynn, M. J.;
- Gallagher, M. W.;
- Field, P. R.;
- Dearden, C.;
- Choularton, T. W.
Publication type:
Article
Potential sensitivity of photosynthesis and isoprene emission to direct radiative effects of atmospheric aerosol pollution.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25433, doi. 10.5194/acpd-15-25433-2015
By:
- Strada, S.;
- Unger, N.
Publication type:
Article
What do correlations tell us about anthropogenic-biogenic interactions and SOA formation in the Sacramento Plume during CARES?
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25381, doi. 10.5194/acpd-15-25381-2015
By:
- Kleinman, L.;
- Kuang, C.;
- Sedlacek, A.;
- Senum, G.;
- Springston, S.;
- Wang, J.;
- Zhang, Q.;
- Jayne, J.;
- Fast, J.;
- Hubbe, J.;
- Shilling, J.;
- Zaveri, R.
Publication type:
Article
Exploring the uncertainty associated with satellite-based estimates of premature mortality due to exposure to fine particulate matter.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 18, p. 25329, doi. 10.5194/acpd-15-25329-2015
By:
- Ford, B.;
- Heald, C. L.
Publication type:
Article
Characteristics and formation mechanism of continuous extreme hazes in China: a case study in autumn of 2014 in the North China Plain.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 7, p. 10987, doi. 10.5194/acpd-15-10987-2015
By:
- Yang, Y. R.;
- Liu, X. G.;
- Qu, Y.;
- An, J. L.;
- Jiang, R.;
- Zhang, Y. H.;
- Sun, Y. L.;
- Wu, Z. J.;
- Zhang, F.;
- Xu, W. Q.;
- Ma, X. Q.
Publication type:
Article
Improvements in AOD retrieval from geostationary measurements over Asia with aerosol optical properties derived from the DRAGON-Asia campaign.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 7, p. 10773, doi. 10.5194/acpd-15-10773-2015
By:
- Kim, M.;
- Kim, J.;
- Jeong, U.;
- Kim, W.;
- Holben, B.;
- Eck, T. F.;
- Lim, J. H.;
- Song, C. K.;
- Lee, S.
Publication type:
Article
Dust aerosol and optical properties over North Africa simulated with the ALADIN numerical prediction model from 2006 to 2010.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 4, p. 5751, doi. 10.5194/acpd-15-5751-2015
By:
- Mokhtari, M.;
- Tulet, P.;
- Fischer, C.;
- Bouteloup, Y.;
- Bouyssel, F.;
- Brachemi, O.
Publication type:
Article
What's the real role of iron-oxides in the optical properties of dust aerosols?
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 4, p. 5619, doi. 10.5194/acpd-15-5619-2015
By:
- Zhang, X. L.;
- Wu, G. J.;
- Zhang, C. L.;
- Xu, T. L.;
- Zhou, Q. Q.
Publication type:
Article
Technical Note: Optical properties of desert dust with non-spherical particles: data incorporated to OPAC.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 3, p. 3995, doi. 10.5194/acpd-15-3995-2015
By:
- Koepke, P.;
- Gasteiger, J.;
- Hess, M.
Publication type:
Article
Diurnal variations of aerosol optical properties in the North China Plain and their influences on the estimates of direct aerosol radiative forcing.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 1, p. 339, doi. 10.5194/acpd-15-339-2015
By:
- Kuang, Y.;
- Zhao, C. S.;
- Tao, J. C.;
- Ma, N.
Publication type:
Article
Enhanced extinction of visible radiation due to hydrated aerosols in mist and fog.
Published in:
Atmospheric Chemistry & Physics Discussions, 2015, v. 15, n. 1, p. 291, doi. 10.5194/acpd-15-291-2015
By:
- Elias, T.;
- Dupont, J.-C.;
- Hammer, E.;
- Hoyle, C. R.;
- Haeffelin, M.;
- Burnet, F.;
- Jolivet, D.
Publication type:
Article
Long term measurements of optical properties and their hygroscopic enhancement.
Published in:
Atmospheric Chemistry & Physics Discussions, 2014, v. 14, n. 20, p. 27731, doi. 10.5194/acpd-14-27731-2014
By:
- Hervo, M.;
- Sellegri, K.;
- Pichon, J. M.;
- Roger, J. C.;
- Laj, P.
Publication type:
Article
Effect of water vapour on the determination of Aerosol Direct Radiative Effect based on the AERONET fluxes.
Published in:
Atmospheric Chemistry & Physics Discussions, 2014, v. 14, n. 1, p. 751, doi. 10.5194/acpd-14-751-2014
By:
- Huttunen, J.;
- Arola, A.;
- Myhre, G.;
- Lindfors, A. V.;
- Mielonen, T.;
- Mikkonen, S.;
- Schafer, J.;
- Tripathi, S. N.;
- Wild, M.;
- Komppula, M.;
- Lehtinen, K. E. J.
Publication type:
Article
A new study of sea spray optical properties from multi-sensor spaceborne observations.
Published in:
Atmospheric Chemistry & Physics Discussions, 2014, v. 14, n. 1, p. 213, doi. 10.5194/acpd-14-213-2014
By:
- Dawson, K. W.;
- Meskhidze, N.;
- Josset, D.;
- Gassó, S.
Publication type:
Article
Intercomparison and evaluation of aerosol microphysical properties among AeroCom global models of a range of complexity.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 11, p. 30841, doi. 10.5194/acpd-13-30841-2013
By:
- Mann, G. W.;
- Carslaw, K. S.;
- Reddington, C. L.;
- Pringle, K. J.;
- Schulz, M.;
- Asmi, A.;
- Spracklen, D. V.;
- Ridley, D. A.;
- Woodhouse, M. T.;
- L. A. Lee;
- K. Zhang;
- Ghan, S. J.;
- Easter, R. C.;
- X. Liu;
- Stier, P.;
- Y. H. Lee;
- Adams, P. J.;
- Tost, H.;
- Lelieveld, J.;
- Bauer, S. E.
Publication type:
Article
Modeling analysis of the seasonal characteristics of haze formation in Beijing.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 11, p. 30575, doi. 10.5194/acpd-13-30575-2013
By:
- X. Han;
- M. Zhang;
- J. Gao;
- S. Wang;
- F. Chai
Publication type:
Article
Column aerosol optical properties and aerosol radiative forcing during a serious haze-fog month over North China Plain in 2013 based on ground-based sunphotometer measurements.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 11, p. 29685, doi. 10.5194/acpd-13-29685-2013
By:
- H. Che;
- X. Xia;
- J. Zhu;
- Z. Li;
- Dubovic, O.;
- Holben, B.;
- Goloub, P.;
- H. Chen;
- Estelles, V.;
- Cuevas-Agulló, E.;
- Blarel, L.;
- H. Wang;
- H. Zhao;
- X. Zhang;
- Y. Wang;
- J. Sun;
- R. Tao;
- G. Shi
Publication type:
Article
AERONET-based microphysical and optical properties of smoke-dominated aerosol near source regions and transported over oceans, and implications for satellite retrievals of aerosol optical depth.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 9, p. 25013, doi. 10.5194/acpd-13-25013-2013
By:
- Sayer, A. M.;
- N. C. Hsu;
- Eck, T. F.;
- Smirnov, A.;
- Holben, B. N.
Publication type:
Article
Aerosols optical and physical characteristics and direct radiative forcing during a "Shamal" dust storm, a case study.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 9, p. 23895, doi. 10.5194/acpd-13-23895-2013
By:
- Saeed, T. M.;
- Al-Dashti, H.;
- Spyrou, C.
Publication type:
Article
Modelling NO2 concentrations at the street level in the GAINS integrated assessment model: projections under current legislation.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 8, p. 22687, doi. 10.5194/acpd-13-22687-2013
By:
- Kiesewetter, G.;
- Borken-Kleefeld, J.;
- Schöpp, W.;
- Heyes, C.;
- Thunis, P.;
- Bessagnet, B.;
- Gsella, A.;
- Amann, M.
Publication type:
Article
Analysis of a strong wildfire event over Valencia (Spain) during Summer 2012 -- Part 1: Aerosol microphysics and optical properties.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 8, p. 22639, doi. 10.5194/acpd-13-22639-2013
By:
- Gómez-Amo, J. L.;
- Estellés, V.;
- Segura, S.;
- Marcos, C.;
- Esteve, A. R.;
- Pedrós, R.;
- Utrillas, M. P.;
- Martínez-Lozano, J. A.
Publication type:
Article
WRF-Chem simulations of a typical pre-monsoon dust storm in northern India: influences on aerosol optical properties and radiation budget.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 8, p. 21837, doi. 10.5194/acpd-13-21837-2013
By:
- Kumar, R.;
- Barth, M. C.;
- Pfister, G. G.;
- Naja, M.;
- Brasseur, G. P.
Publication type:
Article
A decadal satellite analysis of the origins and impacts of smoke in Colorado.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 3, p. 8233, doi. 10.5194/acpd-13-8233-2013
By:
- Val Martin, M.;
- Heald, C. L.;
- Ford, B.;
- Prenni, A. J.;
- Wiedinmyer, C.
Publication type:
Article
Evolution of multispectral aerosol optical properties in a biogenically-influenced urban environment during the CARES campaign.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 3, p. 7113, doi. 10.5194/acpd-13-7113-2013
By:
- Gyawali, M.;
- Arnott, W. P.;
- Zaveri, R. A.;
- Song, C.;
- Pekour, M.;
- Flowers, B.;
- Dubey, M. K.;
- Setyan, A.;
- Zhang, Q.;
- Harworth, J. W.;
- Radney, J. G.;
- Atkinson, D. B.;
- China, S.;
- Mazzoleni, C.;
- Gorkowski, K.;
- Subramanian, R.;
- Jobson, B. T.;
- Moosmüller, H.
Publication type:
Article
Sensitivity of aerosol retrieval to geometrical configuration of ground-based sun/sky-radiometer observations.
Published in:
Atmospheric Chemistry & Physics Discussions, 2013, v. 13, n. 3, p. 6851, doi. 10.5194/acpd-13-6851-2013
By:
- Torres, B.;
- Dubovik, O.;
- Toledano, C.;
- Berjon, A.;
- Cachorro, V. E.;
- Lapyonok, T.;
- Goloub, P.
Publication type:
Article
A unified approach to aerosol remote sensing and type specification in the infrared.
Published in:
Atmospheric Chemistry & Physics Discussions, 2012, v. 12, n. 10, p. 26871, doi. 10.5194/acpd-12-26871-2012
By:
- Clarisse, L.;
- Coheur, P.-F.;
- Prata, F.;
- Hadji-Lazaro, J.;
- Hurtmans, D.;
- Clerbaux, C.
Publication type:
Article