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  • 1
    Call number: AWI A10-18-91567
    In: AIP conference proceedings, Vol. 1531
    Type of Medium: Monograph available for loan
    Pages: XXV, 970 S. , Ill., graph. Darst., Kt.
    ISBN: 9780735411555 , 9781629936963 (Print on Demand)
    Series Statement: AIP conference proceedings 1531
    Language: English
    Note: Table of Contents: Preface: Radiation Processes in the Atmosphere and Ocean / Robert F. Cahalan. - Acknowledgments. - PLENARY SESSION. - UNION-HISTORICAL PERSPECTIVES AND CURRENT TOPICS IN RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN / Conveners: R. F. Cahalan, W. Schmutz, B. J. Sohn, and J. Fischer. - 125 years of radiative transfer: Enduring triumphs and persisting misconceptions / Michael I. Mishchenko. - Active remote sensing of cloud microphysics / Hajime Okamoto. - MIPAS: 10 years of spectroscopic measurements for investigating atmospheric composition / Herbert Fischer. - Status of high spectral resolution IR for advancing atmospheric state characterization and climate trend benchmarking: A period of both opportunity realized and squandered / Henry Revercomb, Fred Best, Robert Knuteson, David Tobin, Joe Taylor, and Jon Gero. - Growing up MODIS: Towards a mature aerosol climate data record / Robert C. Levy. - Radiative transfer and regional climate change / Kuo-Nan Liou. - Ocean optics: The next frontier / George W. Kattawar. - PARALLEL SESSIONS. - RADIATIVE TRANSFER THEORY AND MODELING / Conveners: B. Mayer, A. Marshak, and J.-L. Widlowski. - Oral Presentations. - New approach for radiative transfer in sea ice and its application for sea ice satellite remote sensing / E. P. Zege, A. V. Malinka, I. L. Katsev, A. S. Prikhach, and G. Heygster. - The line-by-line and polarized Monte Carlo atmospheric radiative transfer model / B. A. Fomin and V. A. Falaleeva. - Hyperspectral retrieval of surface reflectances: A new scheme / Jean-Claude Thelen and Stephan Havemann. - Accelerations of the discrete ordinate method for nadir viewing geometries / Dmitry Efremenko, Adrian Doicu, Diego Loyola, and Thomas Trautmann. - The simulation of radar and coherent backscattering with the Monte Carlo model MYSTIC / Christian Pause, Robert Buras, Claudia Emde, and Bernhard Mayer. - The visibility of airborne volcanic ash from the flight deck of an aircraft - The effect of clouds in the field of view / Daniel Sauer, Josef Gasteiger, Claudia Emde, Robert Buras, Bernhard Mayer, and Bernadett Weinzierl. - Results of processing airborne NASA and Russian cloud data / Irina Melnikova, Jefwa M. Genya, and Charles K. Gatebe. - 3D radiative processes in satellite measurements of aerosol properties / Tamás Várnai, Alexander Marshak, Weidong Yang, and Guoyong Wen. - Assessment of cloud heterogeneities effects on brightness temperatures simulated with a 3D Monte Carlo code in the thermal infrared / Thomas Fauchez, Céline Cornet, Frédéric Szczap, and Philippe Dubuisson. - Parametric 3D atmospheric reconstruction in highly variable terrain with recycled Monte Carlo paths and an adapted Bayesian inference engine / Ian Langmore, Anthony B. Davis, Guillaume Bal, and Youssef M. Marzouk. - Remote sensing of particle size profiles from cloud sides: Observables and retrievals in a 3D environment / Florian Ewald, Tobias Zinner, and Bernhard Mayer. - Poster Presentations. - Characterization of cloud microphysical parameters using airborne measurements by the research scanning polarimeter / Mikhail D. Alexandrov, Brian Cairns, Michael I. Mishchenko, Andrew S. Ackerman, and Claudia Emde. - Solution of the radiative transfer equation by eliminating the anisotropic part within the method of synthetic iteration / Vladimir P. Budak and Oleg V. Shagalov. - The phase matrix truncation impact on polarized radiance / M. Compiègne, L. C-Labonnote, and P. Dubuisson. - Evaluation of cloud heterogeneity effects on total and polarized visible radiances as measured by POLDER/PARASOL and consequences for retrieved cloud properties / C. Cornet, F. Szczap, L. C.-Labonnote, T. Fauchez, F. Parol, F. Thieuleux, J. Riedi, P. Dubuisson, and N. Ferlay. - Retrieval of volcanic ash and ice cloud physical properties together with gas concentration from IASI measurements using the AVL model / S. Kochenova, M. De Mazière, N. Kumps, S. Vandenbussche, and T. Kerzenmacher. - Use of shadowband correction models for predicting direct solar irradiance / M. C. Kotti, A. A. Argiriou, and A. Kazantzidis. - Simulation of airborne radar observations of precipitating systems at various frequency bands / Valentin Louf, Olivier Pujol, and Jérôme Riedi. - Fast radiative transfer model to simulate spectroscopic measurements of outgoing IR radiances in cloudy conditions / Alexey Rublev and Anatoly Trotsenko. - Intercomparison of three microwave/infrared high resolution line-by-line radiative transfer codes / F. Schreier, S. Gimeno Garcia, M. Milz, A. Kottayil, M. Höpfner, T. von Clarmann, and G. Stiller. - Py4CAtS – Python tools for line-by-line modelling of infrared atmospheric radiative transfer / Franz Schreier and Sebastián Gimeno García. - Theory of weak spectral line formation within a plane-parallel atmosphere bounded from below by a reflecting underlying surface / Oleg I. Smokty. - Analytical spatial-angular structure of polarized radiation fields in a uniform atmospheric slab / Oleg I. Smokty. - The mirror symmetry principle for radiation fields in a vertically non-uniform atmospheric slab / Oleg I. Smokty. - A 3D polarized Monte Carlo LIDAR system simulator for studying effects of cirrus inhomogeneities on CALIOP/CALIPSO measurements / F. Szczap, C. Cornet, A. Alqassem, Y. Gour, L. C.-Labonnote, and O. Jourdan. - The significance analysis of FY-2E split window data for "clear region" AMVs derivation / Zhenhui Wang, Yizhe Zhan, Zhiguo Zhang, and Lu Yang. - PARTICLE RADIATIVE PROPERTIES / Conveners: T. Aoki, P. Di Girolamo, and H. Ishimoto. - Oral Presentations. - Retrieval of aerosol microstructure and radiative properties for moderate turbidity under conditions of Western Siberia / Tatiana B. Zhuravleva, Tatiana V. Bedareva, and Mikhail A. Sviridenkov. - Vertical resolved aerosol characterization during the GAMARF campaign: Aerosol size distribution and radiative properties / José Luis Gómez-Amo, Daniela Meloni, Alcide di Sarra, Tatiana DiIorio, Wolfgang Junkermann, Víctor Estellés, Giandomenico Pace, and Jeroni Lorente. - A novel, broadband spectroscopic method to measure the extinction coefficient of aerosols in the near-ultraviolet / Eoin M. Wilson, Jun Chen, Ravi M. Varma, John C. Wenger, and Dean S. Venables. - Aerosol characteristics at the Alpine site of Innsbruck, Austria / Sigrid Wuttke, Axel Kreuter, and Mario Blumthaler. - Comparison of modeled optical properties of Saharan mineral dust aerosols with SAMUM lidar and photometer observations / Josef Gasteiger and Matthias Wiegner. - A self-consistent high- and low-frequency scattering model for cirrus / Anthony J. Baran, Richard Cotton, Stephan Havemann, Laurent C.-Labonnote, and Franco Marenco. - Does scattered radiation undergo bluing within clouds? / I. Melnikova, T. Simakina, A. Vasilyev, C. Gatebe, and C. Varotsos. - Poster Presentations. - Numerical simulation of spectral albedos of glacier surfaces covered with glacial microbes in Northwestern Greenland / Teruo Aoki, Katsuyuki Kuchiki, Masashi Niwano, Sumito Matoba, Jun Uetake, Kazuhiko Masuda, and Hiroshi Ishimoto. - Development of a quality control algorithm for analysis of SKYNET data and an estimation of the single scattering albedo / Makiko Hashimoto and Teruyuki Nakajima. - Optical modeling of irregularly shaped ice particles in convective cirrus / Hiroshi Ishimoto, Kazuhiko Masuda, Yuzo Mano, Narihiro Orikasa, and Akihiro Uchiyama. - Optimizing the ice crystal scattering database for the GCOM-C/SGLI satellite mission / Husi Letu, Takashi Y. Nakajima, Takashi N. Matsui, and Yoshiaki Matsumae. - Synergetic retrieval of atmospheric aerosol from a combination of lidar and radiometer ground-based observations / Anton Lopatin, Oleg Dubovik, Anatoli Chaikovsky, Philippe Goloub, Didier Tanre, Pavel Litvinov, and Tatiana Lapyonok. - Satellite study over Europe to estimate the single scattering albedo and the aerosol opt
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 2
    Publication Date: 1976-10-15
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
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  • 3
    Publication Date: 1974-12-01
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
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  • 4
    Publication Date: 2005-08-01
    Print ISSN: 0038-0938
    Electronic ISSN: 1573-093X
    Topics: Physics
    Published by Springer
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  • 5
    Publication Date: 1974-01-01
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
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  • 6
    Publication Date: 1972-06-15
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
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  • 7
    Publication Date: 1989-04-01
    Print ISSN: 0034-4257
    Electronic ISSN: 1879-0704
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Published by Elsevier
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  • 8
    Publication Date: 2007-10-15
    Description: The authors present the global plane-parallel shortwave albedo bias of liquid clouds for two months, July 2003 and January 2004. The cloud optical properties necessary to perform the bias calculations come from the operational Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and MODIS Aqua level-3 datasets. These data, along with ancillary surface albedo and atmospheric information consistent with the MODIS retrievals, are inserted into a broadband shortwave radiative transfer model to calculate the fluxes at the atmospheric column boundaries. The plane-parallel homogeneous (PPH) calculations are based on the mean cloud properties, while independent column approximation (ICA) calculations are based either on 1D histograms of optical thickness or joint 2D histograms of optical thickness and effective radius. The (positive) PPH albedo bias is simply the difference between PPH and ICA albedo calculations. Two types of biases are therefore examined: 1) the bias due to the horizontal inhomogeneity of optical thickness alone (the effective radius is set to the grid mean value) and 2) the bias due to simultaneous variations of optical thickness and effective radius as derived from their joint histograms. The authors find that the global bias of albedo (liquid cloud portion of the grid boxes only) is ∼+0.03, which corresponds to roughly 8% of the global liquid cloud albedo and is only modestly sensitive to the inclusion of horizontal effective radius variability and time of day, but depends strongly on season and latitude. This albedo bias translates to ∼3–3.5 W m−2 of bias (stronger negative values) in the diurnally averaged global shortwave cloud radiative forcing, assuming homogeneous conditions for the fraction of the grid box not covered by liquid clouds; zonal values can be as high as 8 W m−2. Finally, the (positive) broadband atmospheric absorptance bias is about an order of magnitude smaller than the albedo bias. The substantial magnitude of the PPH bias underlines the importance of predicting subgrid variability in GCMs and accounting for its effects on cloud–radiation interactions.
    Print ISSN: 0894-8755
    Electronic ISSN: 1520-0442
    Topics: Geography , Geosciences , Physics
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  • 9
    Publication Date: 2005-12-01
    Description: Two full months (July 2003 and January 2004) of Moderate Resolution Imaging Spectroradiometer (MODIS) Atmosphere Level-3 data from the Terra and Aqua satellites are analyzed in order to characterize the horizontal variability of vertically integrated cloud optical thickness (“cloud inhomogeneity”) at global scales. The monthly climatology of cloud inhomogeneity is expressed in terms of standard parameters, initially calculated for each day of the month at spatial scales of 1° × 1° and subsequently averaged at monthly, zonal, and global scales. Geographical, diurnal, and seasonal changes of inhomogeneity parameters are examined separately for liquid and ice phases and separately over land and ocean. It is found that cloud inhomogeneity is overall weaker in summer than in winter. For liquid clouds, it is also consistently weaker for local morning than local afternoon and over land than ocean. Cloud inhomogeneity is comparable for liquid and ice clouds on a global scale, but with stronger spatial and temporal variations for the ice phase, and exhibits an average tendency to be weaker for near-overcast or overcast grid points of both phases. Depending on cloud phase, hemisphere, surface type, season, and time of day, hemispheric means of the inhomogeneity parameter ν (roughly the square of the ratio of optical thickness mean to standard deviation) have a wide range of ∼1.7 to 4, while for the inhomogeneity parameter χ (the ratio of the logarithmic to linear mean) the range is from ∼0.65 to 0.8. The results demonstrate that the MODIS Level-3 dataset is suitable for studying various aspects of cloud inhomogeneity and may prove invaluable for validating future cloud schemes in large-scale models capable of predicting subgrid variability.
    Print ISSN: 0894-8755
    Electronic ISSN: 1520-0442
    Topics: Geography , Geosciences , Physics
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  • 10
    Publication Date: 1982-07-01
    Print ISSN: 0027-0644
    Electronic ISSN: 1520-0493
    Topics: Geography , Geosciences , Physics
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