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Prediction of Rainfall Measurement Errors Using Commercial Microwa...

By: P. Alpert; A. Zinevich; H. Messer

Description: The Porter School of Environmental Studies, Tel Aviv University, Israel. Commercial microwave radio links forming cellular communication networks are known to be a valuable instrument for measuring near-surface rainfall. However, operational communication links are more uncertain relatively to the dedicated installations since their geometry and frequencies are optimized for high communication performance rather than observing rainfall. Quantification o...

Atlas, D. and Ulbrich, C.: Path- and area-integrated rainfall measurement by microwave attenuation in the 1–3 cm band, J. Appl. Meteorol., 16, 1322–1331, 1977.; Aydin, K. and Daisley, S.: Relationships between rainfall rate and 35-ghz attenuation and differential attenuation: modeling the effects of raindrop size distribution, canting, and oscillation, IEEE T. Geosci. Remote, 40(11), 2343–2352, 2002.; Berne, A. and Uijlenhoet, R.: Path-averaged rainfall estimation using ...

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Evaluation of the Lidar/Radiometer Inversion Code (Liric) to Deter...

By: A. Ansmann; P. Seifert; U. Wandinger; M. Tesche; A. Schwarz; A. Chaikovsky; J. Wagner; O. Dubovik

Description: Leibniz Institute for Tropospheric Research, Leipzig, Germany. The Lidar/Radiometer Inversion Code (LIRIC) combines the multiwavelength lidar technique with sun-sky photometry and allows us to retrieve vertical profiles of particle optical and microphysical properties, separately for fine-mode and coarse-mode particles. After a brief presentation of the theoretical background, we evaluate the potential of LIRIC to retrieve the optical and...

Ansmann, A., Wandinger, U., Riebesell, M., Weitkamp, C., and Michaelis, W.: Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic–backscatter lidar, Appl. Opt., 31, 7113–7131, 1992.; Ansmann, A., Tesche, M., Seifert, P., Groß, S., Freudenthaler, V., Apituley, A., Wilson, K. M., Serikov, I., Linné, H., Heinold, B., Hiebsch, A., Schnell, F., Schmidt, J., Mattis, I., Wandinger, U., and Wiegner, M.: Ash and fine-mod...

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Airborne in Situ Vertical Profiling of Hdo / H216O in the Subtropi...

By: S. Sanati; M. Balzer; M. Schneider; H. Bouquet; C. Dyroff; E. Christner; A. Zahn; J. B. McManus; Y. González-ramos

Description: Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research (IMK-ASF), Karlsruhe, Germany. Vertical profiles of water vapor (H2O) and its isotope ratio D / H expressed as ΔD(H2O) were measured in situ by the ISOWAT II diode-laser spectrometer during the MUlti-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water (MUSICA) airborne campaign. We present recent modifications...

Alonso-Pérez, S., Cuevas, E., and Querol, X.: Objective identification of synoptic meteorological patterns favouring African dust intrusions into the marine boundary layer of the subtropical eastern north Atlantic region, Meteorol. Atmos. Phys., 113, 109–124, doi:10.1007/s00703-011-0150-z, 2011.; Benetti, M., Reverdin, G., Pierre, C., Merlivat, L., Risi, C., Steen-Larsen, H. C., and Vimeux, F.: Deuterium excess in m...

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Seasonal Distribution of Aerosol Properties Over Europe and Their ...

By: N. Y. Chubarova

Description: Faculty of Geography, Moscow State University, Moscow, Russia. Using the aerosol optical thickness at 550 nm (Τ550) from MODIS (collection 5) for the 2000–2008 period combined with the aerosol products from the ground-based AERONET network since 1996, monthly mean values of key aerosol parameters have been obtained with 1 degree resolution over Europe. Additional tests have revealed a satisfactory quality of the MODIS data, except in a few ca...

Balis, D. S., Amiridis, V., Zerefos, C., Kazantzidis, A., Kazadzis, S., Bais, A. F., Meleti, C., Gerasopoulos, E., Papayannis, A., Matthias, V., Dier, H., and Andreae, M. O.: Study of the effect of different type of aerosols on UV-B radiation from measurements during EARLINET, Atmos. Chem. Phys., 4, 307–321, 2004.; Chubarova, N. Y. and Sviridenkov, M. A.: The differences in optical thicknesses due to aerosol and NO2 signatures obtained from parallel CIMEL sun ...

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Improving the Bias Characteristics of the Ropp Refractivity and Be...

By: S. B. Healy; I. D. Culverwell; C. P. Burrows

Description: Met Office, Exeter, UK. The bending angle observation operator (forward model) currently used to assimilate radio occultation (RO) data at the Met Office, the European Centre for Medium-Range Weather Forecasts (ECMWF) and other centres is the same as is included in the Radio Occultation Processing Package (ROPP), along with the corresponding tangent-linear and adjoint code. The functionality of this package will be described in another paper in this iss...

Abramowitz, M. and Stegun, I. A. (Eds.): Handbook of mathematical functions, Dover, 1965.; Cucurull, L., Derber, J. C., and Purser, R. J.: A bending angle forward operator for global positioning system radio occultation measurements, J. Geophys. Res. Atmo., 118, 14–28, 2013.; Davies, T., Cullen, M. J. P., Malcolm, A. J., Mawson, M. H., Staniforth, A., White, A. A., and Wood, N.: A new dynamical core for the Met Offices global and regional modelling of the atmosphere, Q. ...

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Complex Experiment on Stydying the Microphysical, Chemical, and Op...

By: D. G. Chernov; D. M. Kabanov; M. V. Panchenko; G. N. Tolmachev; O. A. Romanovskii; V. A. Gladkikh; V. V. Pol'Kin; A. S. Kozlov; T. V. Bedareva; S. B. Malyshkin; S. A. Terpugova; G. G. Matvienko; D. V. Simonenkov; T. M. Rasskazchikova; T. K. Sklyadneva; S. M. Sakerin; A. V. Fofonov; T. B. Zhuravleva; P. N. Antokhin; S. A. Turchinovich; T. A. Eremina; G. A. Ivlev; A. V. Nevzorov; Y. S. Turchinovich; M. Yu. Arshinov; D. A. Pestunov; S. L. Odintsov; S. B. Belan; D. E. Savkin; V. P. Shmargunov; D. K. Davydov; S. V. Samoilova; Yu. S. Balin; V. G. Arshinova; A. P. Kamardin; B. D. Belan; E. P. Yausheva; A. V. Kozlov; I. E. Penner; G. P. Kokhanenko; V. D. Burlakov; V. S. Kozlov

Description: V. E. Zuev Institute of Atmospheric Optics SB RAS, 1 Academician Zuev sq., 634021 Tomsk, Russia. The primary objective of the Complex Aerosol Experiment was measurement of microphysical, chemical, and optical properties of aerosol particles in the surface air layer and free atmosphere. The measurement data were used to retrieve the whole set of aerosol optical parameters, necessary for radiation calculations. Three measurement cycles were...

Anokhin, G. G., Antokhin, P. N., Arshinov, M.Yu., Barsuk, V. E., Belan, B. D., Belan, S. B., Davydov, D. K., Ivlev, G. A., Kozlov, A. V., Kozlov, V. S., Morozov, M. V., Panchenko, M. V., Penner, I. E., Pestunov, D. A., Sikov, G. P., Simonenkov, D. V., Sinitsyn, D. S., Tolmachev, G. N., Filipov, D. V., Fofonov, A. V., Chernov, D. G., Shamanaev, V. S., and Shmargunov, V. P.: OPTIK Tu-134 aircraft laboratory, Atmos. Ocean. Opt., 24, 805–816, 2011.; Arshinov, M.Yu., Belan, B...

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Retrieval of Aerosol Mass Load (Pm10) from Meris/Envisat Top of At...

By: T. Dinter; J. P. Burrows; A. Kokhanovsky; W. Von Hoyningen-huene; G. J. Rohen; M. Vountas

Description: Institute of Environmental Physics (IUP), University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany. A retrieval of particulate matter concentration (PM10) from satellite data is presented as well as improvements of the aerosol optical depth retrieval by the Bremen aerosol algorithm. The add-on retrieval of particulate matter uses the derivation of the effective radii from the Ångstroem exponents and an assumed log-normal size dis...

Al-Saadi, J., Szykman, J., Pierce, R. B., Kittaka, C., Neil, D., Chu, D. A., Remer, L., Gumley, L., Prins, E., Weinstock, L., MacDonald, C., Wayland, R., Dimmick, F., and Fishman, J.: Improving national air quality forecasts with satellite aerosol observations, B. Am. Meteorol. Soc., 86, 1249–1261, 2005.; Baars, H.: Continuous monitoring of the planetary-boundary-layer depth with lidar, Master's thesis, Universität Leipzig, 2007.; Ansmann, A., Wandinger, U., Wiedensohler...

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The Horizontal Resolution of Mipas : Volume 1, Issue 1 (06/10/2008)

By: M. Ridolfi; M. Höpfner; J.-c. Lambert; T. Von Clarmann; C. De Clercq

Description: Forschungszentrum Karlsruhe, Institut für Meteorologie und Klimaforschung, Karlsruhe, Germany. Limb remote sensing from space provides atmospheric composition measurements at high vertical resolution while the information is smeared in the horizontal domain. The horizontal components of two-dimensional (altitude and along-track coordinate) averaging kernels of a limb retrieval constrained to horizontal homogeneity can be used to estimate the horizontal r...

Carlotti, M.: Global–fit approach to the analysis of limb–scanning atmospheric measurements, Appl. Optics, 27, 3250–3254, 1988.; Carlotti, M., Dinelli, B M., Raspollini, P., and Ridolfi, M.: Geo–fit approach to the analysis of limb–scanning satellite measurements, Appl. Optics, 40, 1872–1885, 2001.; Carlotti, M., Brizzi, G., Papandrea, E., Prevedelli, M., Ridolfi, M., Dinelli, B M., and Magnani, L.: GMTR: Two–dimensional geo–fit multitarget retrieval model for Michelson ...

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Impact of Temperature Field Inhomogeneities on the Retrieval of At...

By: T. Von Clarmann; M. Carlotti; A. Dudhia; E. Papandrea; G. Stiller; A. Linden; E. Castelli; M. Milz; E. Arnone; B. M. Dinelli; M. Kiefer; A. Kleinert

Description: Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, Germany. We examine volume mixing ratios (vmr) retrieved from limb emission spectra recorded with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). In level 2 (L2) data products of three different retrieval processors, which perform one dimensional (1-D) retrievals, we find significant differences between species' profiles from ascending and...

Bernath, P.: Atmospheric {C}hemistry {E}xperiment, in Optical Remote Sensing of the Atmosphere, OSA Technical Digest, Optical Society of America, Washington, DC, p. 22, 1999.; Carlotti, M.: Global-fit approach to the analysis of limb–scanning atmospheric measurements, Appl. Optics, 27, 3250–3254, 1988.; Carlotti, M., Dinelli, B. M., Raspollini, P., and Ridolfi, M.: Geo-fit approach to the analysis of limb–scanning satellite measurements, Appl. Optics, 40, 1872–1885, 2001...

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A Novel Retrieval of Daytime Atmospheric Dust and Volcanic Ash Hei...

By: O. Torres; D. Grainger; E. Maddy; L. Strow; S. Desouza-machado; G. Thomas; A. Robinson

Description: Joint Center for Earth Systems Technology/Physics Department, University of Maryland, Baltimore County, Baltimore, MD, USA. We present a novel method to retrieve daytime atmospheric dust and ash plume heights using a synergy of infrared hyper-spectral radiances and retrieved visible optical depths. The method is developed using data from the Atmospheric Infrared Sounder (AIRS) and Moderate Resolution Imaging Spectroradiometer (MODIS), both of which...

Ahn, C., Torres, O., and Jethva, H.: Assessment of OMI near-UV aerosol optical depth over land, J. Geophys. Res., 119, 2547–2473, doi:10.1002/2013JD020188, 2014.; Aumann, H., Chahine, M., Gautier, C., Goldberg, M., Kalnay, E., McMillin, L., Revercomb, H., Rosenkranz, P., Smith, W., Staelin, D., Strow, L., and Susskind, J.: AIRS/AMSU/HSB on the Aqua Mission: Design, Science Objectives, Data Products and Processing Systems...

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Impact of Radar Data Assimilation Using Wrf Three-dimensional Vari...

By: M. Montopoli; S. Gentile; R. Ferretti; F. S. Marzano; C. Faccani; I. Maiello; E. Picciotti

Description: Centre of Excellence CETEMPS-Department of Physics, University of L'Aquila, L'Aquila, Italy. This work is a first assessment of the role of Doppler Weather radar (DWR) data in a mesoscale model for the prediction of a heavy rainfall. The study analyzes the event occurred during 19–22 May 2008 in the urban area of Rome. The impact of the radar reflectivity and radial velocity acquired from Monte Midia Doppler radar, on the assimilation into the Weat...

Barker, D. M., Huang, W., Guo, Y.-G., and Bourgeois, A.: A Three-Dimensional Variational (3DVAR) Data Assimilation System For Use With MM5, NCAR Tech. Note, NCAR/TN-453+STR, UCAR Communications, Boulder, CO, 68 pp., 2003.; Barker, D. M., Huang, W., Guo, Y.-R., Bourgeois, A., and Xiao, Q.: A Three-Dimensional Variational (3DVAR) data assimilation system for use with MM5: implementation and initial results, Mon. Weather Rev., 132, 897–914, 2004.; Courtier, P., Thépaut, J.-...

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Ground-based Stratospheric O3 and Hno3 Measurements at Thule, Gree...

By: M. L. Santee; L. Froidevaux; G. Muscari; I. Fiorucci

Description: Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy. In response to the need for improving our understanding of the evolution and the interannual variability of the winter Arctic stratosphere, in January 2009 a ground-based millimeter-wave spectrometer (GBMS) was installed at the Network for the Detection of Atmospheric Composition Change (NDACC) site in Thule (76.5° N, 68.8° W), Greenland. In this work, stratospheric GBMS O3 and HNO<...

Boyd, I. S., Parrish, A. D., Froidevaux, L., von Clarmann, T., Kyrölä, E., Russell III, J. M., and Zawodny, J. M.: Ground-based microwave ozone radiometer measurements compared with Aura-MLS v2.2 and other instruments at two Network for Detection of Atmospheric Composition Change sites, J. Geophys. Res., 112, D24S33, doi:10.1029/2007JD008720, 2007.; Cheng, D., de Zafra, R. L., and Trimble, C.: Millimeter wave spectroscop...

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The Ground-based Mw Radiometer Ozoram on Spitsbergen – Description...

By: J. Notholt; S. H. W. Golchert; C. G. Hoffmann; M. Palm

Description: IUP, Universität Bremen, Bremen, Germany. This manuscript introduces the OZORAM ground based millimeter wave radiometer. The instrument is deployed to the high Arctic (79° N, 12° E) for measurements of O3 in the upper stratosphere and lower mesosphere.

The discussion covers measurements taken since late 2006. To investigate instrumental biases, the results from September 2008 till spring 2009 are compared to O3...

Froidevaux, L., Jiang, Y. B., Lambert, A., Livesey, N. J., Read, W. G., Waters, J. W., Browell, E. V., Hair, J. W., Avery, M. A., McGee, T. J., Twigg, L. W., Sumnicht, G. K., Jucks, K. W., Margitan, J. J., Sen, B., Stachnik, R. A., Toon, G. C., Bernath, P. F., Boone, C. D., Walker, K. A., Filipiak, M. J., Harwood, R. S., Fuller, R. A., Manney, G. L., Schwartz, M. J., Daffer, W. H., Drouin, B. J., Cofield, R. E., Cuddy, D. T., Jarnot, R. F., Knosp, B. W., Perun, V. S., Sn...

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Measurements of Tropospheric Ho2 and Ro2 by Oxygen Dilution Modula...

By: C. A. Cantrell; R. S. Hornbrook; J. H. Crawford; O. Goyea; R. L. Mauldin III; J. S. Olson; G. D. Edwards

Description: Atmospheric Chemistry Division, National Center for Atmospheric Research, 1850 Table Mesa Drive, P.O. Box 3000, Boulder, CO, USA. An improved method for the measurement of hydroperoxy radicals (HO2) and organic peroxy radicals (RO2, where R is any organic group) has been developed that combines two previous chemical conversion/chemical ionization mass spectrometry (CIMS) peroxy radical measurement techniques. Applicable to both grou...

Apel, E. C., Emmons, L. K., Karl, T., Flocke, F., Hills, A. J., Madronich, S., Lee-Taylor, J., Fried, A., Weibring, P., Walega, J., Richter, D., Tie, X., Mauldin, L., Campos, T., Weinheimer, A., Knapp, D., Sive, B., Kleinman, L., Springston, S., Zaveri, R., Ortega, J., Voss, P., Blake, D., Baker, A., Warneke, C., Welsh-Bon, D., de Gouw, J., Zheng, J., Zhang, R., Rudolph, J., Junkermann, W., and Riemer, D. D.: Chemical evolution of volatile organic compounds in the outflo...

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An Inverse Modelling Approach for Frequency Response Correction of...

By: F. Kaufmann; J. Bange; N. Wildmann

Description: Center for Applied Geoscience, Eberhard-Karls-Universität Tübingen, Tübingen, Germany. The measurement of water-vapour concentration in the atmosphere is an ongoing challenge in environmental research. Satisfactory solutions are present for ground-based meteorological stations and measurements of mean values. However, advanced research of thermodynamic processes also aloft, above the surface layer and especially in the atmospheric boundary layer (A...

Rediniotis, O. and Pathak, M.: Simple technique for frequency-response enhancement of miniature pressure probes, AIAA J., 37, 897–899, 1999.; Fahey, D., Gao, R., and Möhler, O.: Summary of the AquaVIT Water Vapor Intercomparison: Static Experiments, Aquavit White Paper, available at: https://aquavit.icg.kfa-juelich.de/AquaVit/AquaVitWiki (last access: 29 April 2014), 2009.; Garratt, J.: The Atmospheric Bo...

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Technical Note: the Single Particle Soot Photometer Fails to Relia...

By: J. C. Corbin; A. Keller; A. Petzold; J. Kim; M. Gysel; A. A. Mensah; M. Laborde; B. Sierau

Description: Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland. The single particle soot photometer (SP2) uses laser-induced incandescence (LII) for the measurement of atmospheric black carbon (BC) particles. The BC mass concentration is obtained by combining quantitative detection of BC mass in single particles with a counting efficiency of 100% above its lower detection limit. It is commonly accepted that a particle must ...

Baumgardner, D., Popovicheva, O., Allan, J., Bernardoni, V., Cao, J., Cavalli, F., Cozic, J., Diapouli, E., Eleftheriadis, K., Genberg, P. J., Gonzalez, C., Gysel, M., John, A., Kirchstetter, T. W., Kuhlbusch, T. A. J., Laborde, M., Lack, D., Müller, T., Niessner, R., Petzold, A., Piazzalunga, A., Putaud, J. P., Schwarz, J., Sheridan, P., Subramanian, R., Swietlicki, E., Valli, G., Vecchi, R., and Viana, M.: Soot reference materials for instrument calibration and interco...

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Total Column Water Vapour Measurements from Gome-2 Metop-a and Met...

By: S. Beirle; B. Aberle; S. Slijkhuis; M. Grossi; P. Valks; T. Wagner; D. Loyola; R. Lang

Description: Institut für Methodik der Fernerkundung (IMF), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Germany. The knowledge of the total column water vapour (TCWV) global distribution is fundamental for climate analysis and weather monitoring. In this work, we present the retrieval algorithm used to derive the operational TCWV from the GOME-2 sensors and perform an extensive inter-comparison and validation in order to estimate their absolu...

Andersson, A., Fennig, K., Klepp, C., Bakan, S., Graßl, H., and Schulz, J.: The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data – HOAPS-3, Earth Syst. Sci. Data, 2, 215–234, doi:10.5194/essd-2-215-2010, 2010.; Bauer, P. and Schlüssel, P.: Rainfall, total water, ice water, and water vapor over sea from polarized microwave simulations and Special Sensor Microwave/Imager data, J. Geophys. Res., 98, 207...

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Retrieval of Tropospheric Co Column from Hyperspectral Infrared So...

By: R. Armante; C. Crevoisier; N. A. Scott; T. Thonat; T. Schuck; L. Crépeau; A. Chédin

Description: Laboratoire de Météorologie Dynamique (LMD), UMR8539, CNRS – IPSL, Ecole Polytechnique, Palaiseau, France. Four years of tropospheric integrated content of CO were retrieved from infrared hyperspectral observations of AIRS onboard Aqua and IASI onboard MetOp-A, for the period July 2007–June 2011. The retrieval method is based on a double differential approach that relies on the difference between brightness temperatures observed by the sounder and BT si...

Buchwitz, M., de Beek, R., Bramstedt, K., Noël, S., Bovensmann, H., and Burrows, J. P.: Global carbon monoxide as retrieved from SCIAMACHY by WFM-DOAS, Atmos. Chem. Phys., 4, 1945–1960, doi:10.5194/acp-4-1945-2004, 2004.; Capelle, V., Chédin, A., Péquignot, E., Schluessel, P., Newman, S. M., and Scott, N. A.: Infrared continental surface emissivity spectra and skin temperature retrieved from IASI observations over the...

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Comparison of Satellite Microwave Backscattering (Ascat) and Visib...

By: J. Catherinot; C. Jiménez; C. Prigent

Description: Laboratoire d'Etudes du Rayonnement et de la Matière en Astrophysique (LERMA), UMR8112, CNRS, Observatoire de Paris, France. Previous studies examined the possibility to estimate the aeolian aerodynamic roughness length from satellites, either from visible/near-infrared observations or from microwave backscattering measurements. Here we compare the potential of the two approaches and propose to merge the two sources of information to benefit from their...

Raupach, M., Gillette, D., and Leys, J.: The effect of roughness elements on wind erosion threshold, J. Geophys. Res., 98, 3023–3029, 1993.; Alfaro, S. C. and Gomes, L.: Modeling mineral aerosol production by wind erosion: emission intensities and aerosol distributions in source areas, J. Geophys. Res, 106, 18075–18084, 2001.; Armstrong, R. L. and Brodzik, M. J.: Northern Hemisphere EASEGrid weekly snow cover and sea ice extent version 3, National Snow and Ice Data Cente...

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The Sofia University Atmospheric Data Archive (Suada) : Volume 7, ...

By: Tzv. Simeonov; G. Guerova; N. Yordanova

Description: Sofia University, Faculty of Physics, Department of Meteorology and Geophysics, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria. Atmospheric sounding using the Global Navigation Satellite Systems (GNSS) is a well established research field in Europe. At present, GNSS data from 1800 stations are available for model validation and assimilation in state-of-the-art models used for operational numerical weather prediction Centers in Europe. Advances in GNSS...

About SUADA: available at: http://suada.phys.uni-sofia.bg/?page id=185 (last access: 31 January 2014), 2014.; Bevis, M., Businger, S., Herring, T., Rocken, C., Anthes, R., and Ware, R.: GPS meteorology: remote sensing of atmospheric water vapor using the Global Positioning System, J. Geophys. Res., 97, 15787–15801, 1992.; BKG – EUREF Local Analysis Centre: available at:

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