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Level 1 Algorithms for Tanso on Gosat: Processing and On-orbit Cal...

By: K. Shiomi; H. Suto; T. Urabe; M. Nakajima; J. Yoshida; A. Kuze; F. Kataoka; T. Kawashima; Y. Yamamoto

Description: Japan Aerospace Exploration Agency, Tsukuba-city, Ibaraki, Japan. The Thermal And Near infrared Sensor for carbon Observation Fourier-Transform Spectrometer (TANSO-FTS) onboard the Greenhouse gases Observing SATellite (GOSAT)(nicknamed Ibuki) has been providing global space-borne observations of carbon dioxide (CO2) and methane (CH4) since 2009. In this paper, first, the most recent operational Level 1 algorithms to produce the spe...

Butz, A., Guerlet, S., Hasekamp, O., Schepers, D., Galli, A., Aben, I., Frankenberg, C., Hartmann, J.-M., Tran, H., Kuze, A., Keppel-Aleks, G., Toon, G., Wunch, D., Wennberg, P., Deutscher, N., Griffith, D., Macatangay, R., Messerschmidt, J., Notholt, J., and Warneke, T.: Toward accurate CO2 and CH4 observations from GOSAT, Geophys. Res. Lett., 38, L14812, doi:10.1029/2011GL047888, 2011.; Crisp, D.,...

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Radar-radiometer Retrievals of Cloud Number Concentration and Disp...

By: W. Szyrmer; J. Rémillard; P. Kollias

Description: Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, QC, Canada. The retrieval of cloud microphysical properties from remote sensors is challenging. In the past, ground-based radar-radiometer measurements have been successfully used to retrieve the liquid water content profile in nondrizzling clouds but offer little constraint in retrieving other moments of the cloud particle size distribution (PSD). Here, a microphysical c...

Ackerman, A. S., Kirkpatrick, M. P., Stevens, D. E., and Toon, O. B.: The impact of humidity above stratiform clouds on indirect aerosol climate forcing, Nature, 432, 1014–1017, doi:10.1038/nature03174, 2004.; Ackerman, T. P. and Stokes, G. M.: The atmospheric radiation measurement program, Phys. Today, 56, 38–44, doi:10.1063/1.1554135, 2003.; Atlas, D.: The estimation of cl...

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Direct-sun Total Ozone Data from a Bentham Spectroradiometer: Meth...

By: M. Antón; L. Alados-arboledas; F. J. Olmo; A. Valenzuela; R. Román

Description: Departamento de Física, Universidad de Extremadura, Badajoz, Spain. A methodology to obtain the total ozone column (TOC) from the direct-solar spectral measurements of a Bentham spectroradiometer located at Granada (Spain) is presented in this paper. The method relies on the differential absorption technique using two pairs of direct irradiance at adjacent wavelengths between 305 and 340 nm. The extraterrestrial constant was determined from the e...

Adame, J. A., Bolivar, J. P., and de la Morena, B.: Surface ozone measurements in the southwest of the Iberian Peninsula (Huelva, Spain), Environ Sci. Pollut. R., 17, 355–368, 2010.; Antón, M., Loyola, D., Navascúes, B., and Valks, P.: Comparison of GOME total ozone data with ground data from the Spanish Brewer spectroradiometers, Ann. Geophys., 26, 401–412, doi:10.5194/angeo-26-401-2008, 2008.; Antón, M., López, M....

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Selective Measurements of No, No2 and NoY in the Free Troposphere ...

By: B. Tuzson; L. Emmenegger; J. B. McManus; M. S. Zahniser; M. Steinbacher; D. D. Nelson; K. Zeyer

Description: Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Air Pollution and Environmental Technology, Überlandstr. 129, 8600 Dübendorf, Switzerland. A quantum cascade laser based absorption spectrometer for continuous and direct measurements of NO and NO2 was employed at the high-altitude monitoring site Jungfraujoch (3580 m a.s.l., Switzerland) during a three-month campaign in spring/summer 2012. The total ...

Baltensperger, U., Gäggeler, H. W., Jost, D. T., Lugauer, M., Schwikowski, M., Weingartner, E., and Seibert, P.: Aerosol climatology at the high-alpine site Jungfraujoch, Switzerland, J. Geophys. Res.-Atmos., 102, 19707–19715, doi:10.1029/97JD00928, 1997.; Clemitshaw, K. C.: A review of instrumentation and measurement techniques for ground-based and airborne field studies of gas-phase tropospheric chemistry, Crit. Rev. Env....

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Performance of a Low-cost Methane Sensor for Ambient Concentration...

By: W. Eugster; G. W. Kling

Description: ETH Zurich, Institute of Agricultural Sciences, Universitätsstrasse 2, 8092 Zurich, Switzerland. Methane is the second most important greenhouse gas after CO2 and contributes to global warming. Its sources are not uniformly distributed across terrestrial and aquatic ecosystems, and most of the methane flux is expected to stem from hotspots which often occupy a very small fraction of the total landscape area. Continuous time-ser...

Angeloff, H., Moore, B., Fathauer, T., Prechtel, A., and Thoman, R.: Alaskan Weather, Weatherwise, 64, 68–69, 2011.; Brudzewski, K.: An attempt to apply {Elman}'s neural-network to the recognition of methane pulses, Sensor. Actuat. B-Chem., 47, 231–234, doi:10.1016/S0925-4005(98)00028-8, 1998.; Cavanagh, L. A., Schadt, C. F., and Robinson, E.: Atmospheric hydrocarbon and carbon monoxide measurements at Point Bar...

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Characterization and Testing of a New Environmental Chamber Design...

By: O. Sippula; M.-r. Hirvonen; K. Kuuspalo; K. E. J. Lehtinen; A. Leskinen; P. Jalava; M. Komppula; J. Jokiniemi; A. Virtanen; P. Yli-pirilä

Description: Finnish Meteorological Institute, P.O. Box 1627, 70211 Kuopio, Finland. A 29 m3 Teflon chamber, designed for aging studies of combustion aerosols, at the University of Eastern Finland is described and characterized. The chamber belongs to a research facility, called Ilmari, where small-scale combustion devices, a dynamometer for vehicle exhaust studies, dilution systems, the chamber, as well as cell and animal exposure devices are side b...

Calvert, J. G., Atkinson, R., Becker, K. H., Kamens, R. M., Seinfeld, J. H.,Wallington, T. J., and Yarwoord, G.: The Mechanisms of Atmospheric Oxidation of Aromatic Hydrocarbons, Oxford University Press, New York, 556 pp., 2002.; Carter, W. P. L., Cocker, D. R. III, Fitz, D. R., Malkina, I. L., Bumiller, K., Sauer, C. G., Pisano, J. T., Bufalino, C., and Song, C.: A new environmental chamber for evaluation of gas-phase chemical mechanisms and secondary aerosol formation,...

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Intercomparison of an Aerosol Chemical Speciation Monitor (Acsm) w...

By: M. S. Kollman; E. M. Knipping; E. S. Edgerton; P. L. Croteau; S. L. Shaw; J. D. Surratt; R.J. Weber; K. Baumann; S. H. Budisulistiorini; N. L. Ng; M. R. Canagaratna; J. T. Jayne; D. R. Worsnop; V. Verma

Description: Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. Currently, there are a limited number of field studies that evaluate the long-term performance of the Aerodyne Aerosol Chemical Speciation Monitor (ACSM) against established monitoring networks. In this study, we present seasonal intercomparisons of the ACSM with collocated fine aerosol...

Aiken, A. C., DeCarlo, P. F., Kroll, J. H., Worsnop, D. R., Huffman, J. A., Docherty, K. S., Ulbrich, I. M., Mohr, C., Kimmel, J. R., Sueper, D., Sun, Y., Zhang, Q., Trimborn, A., Northway, M., Ziemann, P. J., Canagaratna, M. R., Onasch, T. B., Alfarra, M. R., Prevot, A. S. H., Dommen, J., Duplissy, J., Metzger, A., Baltensperger, U., and Jimenez, J. L.: O / C and OM / OC Ratios of Primary, Secondary, and Ambient Organic Aerosols with High-Resolution Time-of-Flight Aeros...

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The Airborne Multiangle Spectropolarimetric Imager (Airmspi): a Ne...

By: M. J. Garay; M. A. Bull; A. Davis; F. Xu; J. V. Martonchik; D. J. Diner; V. M. Jovanovic; R. A. Chipman; B. R. Hancock; K. Capraro; S. Geier; S. C. McClain; B. E. Rheingans

Description: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. The Airborne Multiangle SpectroPolarimetric Imager (AirMSPI) is an eight-band (355, 380, 445, 470, 555, 660, 865, 935 nm) pushbroom camera, measuring polarization in the 470, 660, and 865 nm bands, mounted on a gimbal to acquire multiangular observations over a ±67° along-track range. The instrument has been flying aboard the NASA ER-2 high altitude aircraft since Oc...

ACE Science Working Group: Aerosol, Cloud and Ecosystems (ACE) Proposed Satellite Mission Study Report, available at: http://dsm.gsfc.nasa.gov/ace/library.html (last access: 11 February 2013), 2010.; Alexandrov, M. D., Cairns, B., Emde, C., Ackerman, A. S., and van Diedenhoven, B.: Accuracy assessments of cloud droplet size retrievals from polarized reflectance measurements by the research scanning polarimeter, Remote...

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Validation of Mipas Imk/Iaa Methane Profiles : Volume 8, Issue 6 (...

By: K. Walker; G. Toon; A. Engel; M. Hervig; U. Grabowski; T. Von Clarmann; J. Plieninger; I. Levin; A. Linden; S. Lossow; M. Kiefer; N. Glatthor; G. Stiller; S. Kellmann; E. Eckert; M. McHugh; A. Laeng; F. Haenel; L. Deaver; S. Noël

Description: Institut für Meteorologie und Klimaforschung, Karlsruhe Institute of Technology, Karlsruhe, Germany. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) was an infra-red (IR) limb emission spectrometer on the Envisat platform. It measured during day and night, pole-to-pole, over an altitude range from 6 to 70 km in nominal mode and up to 170 km in special modes, depending on the measurement mode, producing more than 1000 profiles ...

Boone, C. D., Walker, K. A., and Bernath, P. F.: Version 3 retrievals for the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS), in: The Atmospheric Chemistry Experiment ACE at 10: A Solar Occultation Anthology, edited by: Bernath, P. F., A. Deepak Publishing, Hampton, Virginia, USA, 103–127, 2013.; Chauhan, S., Höpfner, M., Stiller, G. P., von Clarmann, T., Funke, B., Glatthor, N., Grabowski, U., Linden, A., Kellmann, S., Milz, M., Steck, T., Fis...

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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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On the Ability of Pseudo-operational Ground-based Light Detection ...

By: S. Loaec; G. Martucci; S. Lolli; C. D. O'Dowd; L. Sauvage; C. Milroy; J. V. Lavrič; P. Ciais; I. Xueref-remy

Description: School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland, Galway, Ireland. Twenty-one cases of boundary-layer (BL) structure were retrieved by three co-located remote sensors, one lidar (Leosphere ALS300) and two ceilometers (Vaisala CL31, Jenoptik CHM15K). Data were collected during the ICOS field campaign held at the GAW Atmospheric Station of Mace Head, Ireland, from 8 to 28 June 2009. The stud...

Boers, R., Russchenberg, H., Erkelens, J., and Venema, V.: Ground-based remote sensing of stratocumulus properties during CLARA, 1996, J. Appl. Meteorol., 39, 169–181, 2000.; Clothiaux, E. E., Ackerman, T. P., Mace, G. G., Moran, K. P., Marchand, R. T., Miller, M. A., and Martner, B. E.: Objective determination of cloud heights and radar reflectivities using a combination of active remote sensors at the ARM CART sites, J. Appl. Meteorol., 39, 645–665, 2000.; Colette, A.,...

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A Compact Ptr-tof-ms Instrument for Airborne Measurements of Vocs ...

By: A. Jordan; G. Hanel; R. Schottkowsky; M. Müller; P. Mutschlechner; A. Wisthaler; L. Märk; E. Hartungen; T. Mikoviny; S. Feil; S. Haidacher; P. Sulzer; J. H. Crawford

Description: Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria. Herein, we report on the development of a compact proton-transfer-reaction time-of-flight mass spectrometer for airborne measurements of volatile organic compounds (VOCs). The new instrument resolves isobaric ions with a mass resolving power (mm) of ~ 1000, provides accurate m/z measurements (Δm < 3 mDa), records full mass spectra at...

Arnold, F. and Hauck, G.: Lower stratosphere trace gas detection using aircraft-borne active chemical ionization mass spectrometry, Nature, 315, 307–309, doi:10.1038/315307a0, 1985.; Blake, R. S., Whyte, C., Hughes, C. O., Ellis, A. M., and Monks, P. S.: Demonstration of proton-transfer reaction time-of-flight mass spectrometry for real-time analysis of trace volatile organic compounds, Anal. Chem., 76, 3841–3845,

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Rainfall Measurement from Opportunistic Use of Earth-space Link in...

By: C. Mallet; L. Barthès

Description: Université de Versailles Saint-Quentin, LATMOS-IPSL, UMR8190, CNRS-INSU, Laboratoire Atmosphères Milieux, Observations Spatiales, Quartier des Garennes, 11 Boulevard d'Alembert, 78280 Guyancourt, France. The present study deals with the development of a low cost microwave device devoted to measure average rain rate observed along earth – satellite links. The principle is to use rain atmospheric attenuation along Earth – space links in Ku-band to deduce th...

Adhikari, A., Das, S., Bhattacharya, A., and Maitra, A.: Improving rain attenuation estimation: modelling of effective path length using ku-band measurements at a tropical location, Prog. Electromagn. Res. B, 34, 173–186, 2011.; Atlas, D. and Ulbrich, C. W. : Path- and Area-Integrated Rainfall Measurement by Microwave Attenuation in the 1–3 cm Band, J. Appl. Meteorol., 16, 1322–1331, 1977.; Berne, A. and Uijlenhoet, R., : Path-averaged rainfall estimation using microwave...

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A New Microwave Spectrometer for Ground-based Observations of Wate...

By: C. Jarchow; P. Hartogh; K. Hallgren

Description: Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany. We have developed a new, high time-resolution, microwave heterodyne spectrometer for observations of water vapour in the middle atmosphere. It measures the rotational transition of water vapour at 22.235 GHz in the vertical and horizontal polarisation. The two polarisations are averaged in order to optimise the signal-to-noise ratio. The different polarisations have separate...

Backus, G. and Gilbert, F.: Uniqueness in the inversion of inaccurate gross Earth data, Philos. T. Roy. Soc. S.-A, 266, 123–192, 1970.; Brasseur, G. and Solomon, S.: Aeronomy of the middle atmosphere, D. Reidel Publishing Company, Dordrecht,, 1998.; Chapman, S. and Lindzen, R.: Atmospheric tides, thermal and gravitational, Reidel, Dordrecht, 1970.; Feist, D. G., Aellig, C. P., Solomon, P. M., Barrett, J. W., Zoonematkermani, S., Hartogh, P., Jarchow, C., and Waters, J. W...

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An Airborne Perfluorocarbon Tracer System and Its First Applicatio...

By: Y. Ren; H. Schlager; R. Baumann

Description: Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany. A perfluorocarbon tracer system (PERTRAS), specifically designed for Lagrangian aircraft experiments, has been developed by the Deutsches Zentrum für Luft- und Raumfahrt (German Aerospace Center, DLR). It consists of three main parts: a tracer release unit (RU), an adsorption tube sampler (ATS), and a tracer analytical system. The RU was design...

Ambrosetti, P., Anfossi, D., Cieslik, S., Graziani, G., Lamprecht, R., Marzorati, A., Nodop, K., Sandroni, S., Stingele, A., and Zimmermann, H.; Mesoscale transport of atmospheric trace constituents across the central Alps: Transalp tracer experiments, Atmos. Environ., 32, 1257–1272, 1998.; Aragón, M., Borrull, F., and Marcé, R. M.: Thermal desorption-gas chromatography-mass spectrometry method to determine phthalate and organophosphate esters from air samples, J. Chroma...

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Trajectory Matching of Ozonesondes and Mozaic Measurements in the ...

By: R. Stübi; J. Staehelin; V. Thouret; T. Peter; F. Tummon; J. Staufer

Description: Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland. With the aim of improving ozonesonde observations in the upper troposphere/lower stratosphere (UTLS), we use three-dimensional forward and backward trajectories, driven by ERA-Interim wind fields to match and compare ozonesonde measurements at Payerne (Switzerland) with observations from the MOZAIC aircraft program from 1994–2009. The uncertainties associated with the son...

Bodeker, G. E., Boyd, I. S., and Matthews, W. A.: Trends and variability in vertical ozone and temperature profiles measured by ozonesondes at Lauder, New Zealand: 1986–1996, J. Geophys. Res., 103, 28661–28681, 1998.; Brewer, A. and Milford, J.: The Oxford Kew ozonesonde, P. Roy. Soc. Lond., 256, 470–495, doi:10.1098/rspa.1960.0120, 1960.; Brunner, D., Staehlin, J., Jeker, D., Wernli, H., and Schumann, U.: Nitrogen oxi...

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On the Optimal Method for Evaluating Cloud Products from Passive S...

By: E. Johansson; K.-g. Karlsson

Description: Swedish Meteorological and Hydrological Institute, Norrköping, Sweden. A method for detailed evaluation of a new satellite-derived global 28 yr cloud and radiation climatology (Climate Monitoring SAF Clouds, Albedo and Radiation from AVHRR data, named CLARA-A1) from polar-orbiting NOAA and Metop satellites is presented. The method combines 1 km and 5 km resolution cloud datasets from the CALIPSO-CALIOP (Cloud-Aerosol Lidar and Infrared Pathfinder Satell...

Bodas-Salcedo, A., Webb, M. J., Bony, S., Chepfer, H., Dufresne, J.-L., Klein, S. A., Zhang, Y., Marchand, R., Haynes, J. M., Pincus, R., and John, V. O.: COSP: Satellite simulation software for model assessment, B. Am. Meteorol. Soc., 92, 1023–1043m doi:10.1175/2011BAMS2856.1, 2011.; Cesana, G., Kay, J. E., Chepfer, H., English, J. M., and de Boer, G.: Ubiquitous low-level liquid-containing Arctic clouds: New observat...

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Improving Langley Calibrations by Reducing Diurnal Variations of A...

By: M. Blumthaler; S. Wuttke; A. Kreuter

Description: Division for Biomedical Physics, Department of Physiology and Medical Physics, Innsbruck Medical University, Muellerstr. 44, 6020 Innsbruck, Austria. Errors in the sun photometer calibration constant lead to artificial diurnal variations, symmetric around solar noon, of the retrieved aerosol optical depth (AOD) and the associated Ångström exponent Α and its curvature Γ. We show in simulations that within the uncertainty of state-of-the-art Langley calibr...

Ångström, A.: The parameters of atmospheric turbidity, Tellus, 16, 64–75, 1964.; Bodhaine, B. A., Wood, N. B., Dutton, E. G., and Slusser, J. R.: On Rayleigh Optical Depth Calculations, J. Atmos. Ocean. Tech. 16, 1854–1861, 1999.; Forgan, B. W.: General method for calibrating Sun photometers, Appl. Optics, 33, 4841–4850, 1994.; Cachorro, V. E., Toledano, C., Berjon, A., de Frutos, A. M., Torres, B., Sorribas, M., and Laulainen, N. S.: An in situ calibration-correction pr...

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A Newly Identified Calculation Discrepancy of the Sunset Semi-cont...

By: Y. Cheng; K. B. He; Y. L. Ma; G. J. Zheng; F. K. Duan

Description: State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China. The Sunset semi-continuous carbon analyzer (SCCA) is an instrument widely used for carbonaceous aerosol measurement. Despite previous validation work, in this study we identified a new type of SCCA calculation discrepancy caused by the default multipoint baseline correction method. When exceeding a certain thresho...

Andreae, M. O. and Gelencsér, A.: Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols, Atmos. Chem. Phys., 6, 3131–3148, doi:10.5194/acp-6-3131-2006, 2006.; Arhami, M., Kuhn, T., Fine, P. M., Delfino, R. J., and Sioutas, C.: Effects of sampling artifacts and operating parameters on the performance of a semicontinuous particulate elemental carbon/organic carbon monitor, Environ. Sci. Techn...

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Dimensionality Reduction in Bayesian Estimation Algorithms : Volum...

By: G. W. Petty

Description: Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA. An idealized synthetic database loosely resembling 3-channel passive microwave observations of precipitation against a variable background is employed to examine the performance of a conventional Bayesian retrieval algorithm. For this dataset, algorithm performance is found to be poor owing to an irreconcilable conflict between the need to fin...

Di Michele, S., Tassa, A., Mugnai, A., Marzano, F., Bauer, P., and Baptista, J.: Bayesian algorithm for microwave-based precipitation retrieval: Description and application to TMI measurements over ocean, IEEE T. Geosci. Remote, 43, 778–791, 2005.; Grecu, M. and Olson, W.: Bayesian estimation of precipitation from satellite passive microwave observations using combined radar-radiometer retrievals, J. Appl. Meteorol. Clim., 45, 416–433, 2006.; Bauer, P., Amayenc, P., Kumm...

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