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G. Alexander Sokolowsky, Eugene E. Clothiaux, Cory F. Baggett, Sukyoung Lee, Steven B. Feldstein, Edwin W. Eloranta, Maria P. Cadeddu, Nitin Bharadwaj, and Karen L. Johnson

climatologies and hydrometeor property parameterizations, Curry and Ebert (1992) showed that low-altitude (below approximately 3 km) ice-water hydrometeors are important in the Arctic winter. Omission of ice-water hydrometeors in their radiative transfer calculations led to underestimates of about 40 W m −2 in the surface downwelling longwave irradiance. In their study, making liquid-water clouds opaque relative to their expected values increased the surface downwelling longwave irradiance by about 25 W

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P. M. Gabriel and K. F. Evans

858JOURNAL OF THE ATMOSPHERIC SCIENCESVoc. 53, NO. 6Simple Radiative Transfer Methods for Calculating Domain-Averaged Solar in [nhomogeneous Clou/~ P. M.Department of Atmospheric Sciences, Colorado State University, Fort Collins, Colorado K. F. EVANSProgram in Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado(Manuscript received 25 August 1994, in final form 11 September 1995)ABSTRACT The use of cloud fraction as

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K. Franklin Evans

15 SEPTEMBER 1993 EVANS 3111Two-Dimensional Radiative Transfer in Cloudy Atmospheres: The Spherical Harmonic Spatial Grid Method K. FRANKLIN EVANSDepartment of Atmospheric Science, Colorado State University, Fort Collins, Colorado(Manuscript received 5 June 1992, in final form 16 February 1993)ABSTRACT A new two-dimensional monochromatic method that computes the transfer of

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Zhenyi Lin, Nan Chen, Yongzhen Fan, Wei Li, Knut Stamnes, and Snorre Stamnes

1. Introduction In most current scalar radiative transfer models for radiance computations in plane-parallel geometry ( Stamnes et al. 1988 , 2000 ; Jin et al. 2006 ; Spurr 2008 ; Rozanov et al. 2014 ; Lin et al. 2015 ; Stamnes and Stamnes 2016 ; Hamre et al. 2017 ; K. Stamnes et al. 2017 ), the scattering phase function is expanded in a finite series of Legendre polynomials. This expansion of the scattering phase function combined with an expansion of the radiance in a Fourier cosine

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K. N. Liou, S. C. Ou, Y. Takano, and Q. Liu

1. Introduction Satellite data assimilation requires an efficient and accurate radiative transfer model for the computation of radiances and the associated derivatives. The thermal radiative transfer model that has been used for data assimilation in numerical weather prediction models was primarily developed for clear conditions, that is, for pure absorbing atmospheres, such that the atmospheric transmittance and the gradient of radiance relative to a state variable are parameterized or derived

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Jean-Louis Dufresne, Richard Fournier, Christophe Hourdin, and Frédéric Hourdin

physics, in particular of the Martian upper atmosphere. Computation of radiative transfer is a key element in the modeling of atmospheric circulation. Absorption and emission of visible and infrared radiation are the original forcing of atmospheric circulation. With typical horizontal grids of a few thousands to ten thousand points, and since we want to cover years with explicit representation of diurnal cycle, operational radiative codes must be extremely fast. Representation of radiative transfer

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Yali Luo, Kuan-Man Xu, Hugh Morrison, and Greg McFarquhar

“superparameterization” to replace most of the traditional parameterizations in each grid cell of GCMs (e.g., Grabowski 2003 ), and global versions of CRMs are emerging ( Tomita et al. 2005 ). Microphysical processes, as well as turbulent and radiative transfer processes, still need to be parameterized in CRMs. Most CRMs rely on bulk microphysics schemes to represent the complicated interactions between atmospheric thermodynamic states and hydrometeors and among various hydrometeor species. Bulk microphysics

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Owen B. Toon and James B. Pollack

MARCR1976 OWEN B. TOON AND JAMES B. POLLACK 225A Global Average Model of Atmospheric Aerosols for Radiative Transfer Calculations OWEN B. TOON~ AND JAmmS B. POLLACKTheoretical Studies Branch, NASA Ames Research Center, Moffett Field, Cabif. 94035(Manuscript received 20 February 1975, in revised form 18 November 1975)ABSTRACT A global average model of the size distribution, chemical composition

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J. L. Haferman, W. F. Krajewski, and T. F. Smith

DECEMBER 1994 HAFERMAN ET AL. 1609Three-Dimensional Aspects of Radiative Transfer in Remo~e Sensing of Precipitation: Application to the 1986 COHMEX Storm J. L. HAFERMANDepartment of Mechanical Engineering, University of Iowa, Iowa City, Iowa W. F. KRAJEWSKIIowa Institute of Hydraulic Research and Department of Civil and Environmental Engineering

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Knut Stamnes and Roy A. Swanson

FEBRUARY 1981 KNUT STAMNES AND ROY A. SWANSON 387A New Look at the Discrete Ordinate Method for Radiative Transfer Calculations in Anisotropically Scattering Atmospheres KNUT STAMNESGeophysical Institute, University of Alaska, Fairbanks 99701 RoY A. SWANSONDepartment of Physics and Astrophysics, University of Colorado, Boulder 80303(Manuscript received 17 June 1980, in final

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