Download or read book Monte Carlo Calculations of the Scattering of 450 550 and 650 Nm Wavelength Light in Model Atmospheres for Point Isotropic Sources written by Michael B. Wells and published by . This book was released on 1971 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The FLARE Monte Carlo procedure, which computes the transport of monochromatic light emitted by either point or plane-parallel sources in a plane atmosphere, was made operational. The FLARE procedure treats problems involving light transport in atmospheres where the scattering and absorption processes vary with altitude. The FLARE procedure was used to compute the scattered and direct intensities as a function of direction and horizontal range at receiver altitudes of 0, 1, 2, 5, and 10 km. Problems were run for 550 nm wavelength point isotropic sources at 1, 2, 5, 20 and 80 km altitude in a model atmosphere with a ground level meteorological range of 10 km. Calculations were made for the 550 nm wavelength point isotropic source at 2 km altitude in model atmospheres with ground level meteorological ranges of 3, 10, 25, and 50 km. Additional calculations were also performed for 450, 550, and 650 nm wavelength point isotropic sources at 2 km altitude in the model atmosphere with a 10 km ground level meteorological range. (Author).

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1972 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Journal of the Optical Society of America written by and published by . This book was released on 1972 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1971 with total page 1366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Directory of Computer Software Applications atmospheric Sciences 1970 October 1978 written by United States. National Technical Information Service and published by . This book was released on 1978 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1971 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1971 with total page 1450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Directory of Computer Software Applications written by and published by . This book was released on with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1971 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monte Carlo Studies on the Time Dependent Transport of Optical and Infrared Radiation in the Atmosphere Volume II Thermal Radiation Transport written by Dave G. Collins and published by . This book was released on 1977 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes modifications that were made to the POLO procedures to treat infrared absorption by the gaseous molecules in the atmosphere. Also described are the results of studies performed with the POLO procedure to compute time-dependent scattered light fluxes at satellite receivers for (1) 0.4278-, 0.75-, and 1.07-micrometer wavelength anisotropic point sources; (2) 0.4278-, 0.5-, 0.6-, 0.75-, and 1.07-micrometer wavelength point isotropic sources in a 40-km meteorological range atmosphere; (3) point isotropic sources emitting in the 2.7-micrometer wavelength band; and (4) point isotropic 0.4278-, 0.75-, and 1.07-micrometer wavelength sources in model atmospheres containing a cloud layer. Three computer codes are described which were developed for convoluting the POLO-calculated wavelength- and time-dependent atmospheric scattering data with wavelength- and time-dependent source data for thermal radiation sources. A calculational method is described that can be used to compute the Legendre polynomial coefficients required in discrete ordinates codes for defining the phase function for light scattering by aerosols and cloud particles.

Download or read book Monte Carlo Studies of Light Transport Through Natural Atmospheres written by Wolfram Blattner and published by . This book was released on 1973 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes work performed on six major work areas: Modification to the FLASH procedure and its application to solar almucantar, horizon brightness, and twilight scattering studies; Development of the BRITE procedure for treating light scattering in a plane parallel atmosphere with the backward Monte Carlo method. Application of the FLARE procedure to evaluate the effect of multiple scattering on the angular intensity reaching a receiver from a point isotropic source; Modifications of the LITE-IV procedure for use in path radiance and path reflectance calculations; Applications of the TPART-I procedure to studies of radiation transport in foggy atmospheres for use in determining the effects of scattering on visibility measurements made with optical transmission instruments; and, Modifications to the MIE2 procedure and development of the MIE3, MIE4, and MIE5 procedures for calculating scattering cross sections and phase function data for homogeneous spherical particles and for particles having a spherical shell of different materials, and the application of these programs to calculations of scattering data for visible and infrared light. (Author Modified Abstracts).

Download or read book Monte Carlo Calculations of the Transmission of Thermal Radiation from Nuclear Detonations in Model Atmospheres written by M. B. Wells and published by . This book was released on 1969 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monte Carlo calculations for monochromatic point isotropic sources were performed to determine the direct and scattered fluxes incident on flat plate receivers oriented so as to be (1) perpendicular to the source-receiver direction, (2) parallel to the ground surface, and (3) perpendicular to the ground surface. The receiver surface was always facing the point isotropic source. The calculations were run for 13 monochromatic wavelengths between 0.3 microns and 4.0 microns, source altitudes of 1, 9 and 50 km, a receiver altitude of 6 m, and reciever horizontal range from 9 to 90 km. The transmission calculations for each of the receiver orientations were performed for model atmospheres designed to represent a morning tropical atmosphere and an afternoon tropical atmosphere. Transmission calculations for a receiver oriented normal to the source-receiver axis were also performed for summer, winter and winter inversion midlatitude atmospheres, and arctic atmosphere. For the 1 km source altitude in the morning and afternoon tropical atmospheres, transmission calculations were performed for cases where these atmospheres contained a cloud layer with the bottom of the cloud layer being at an altitude of either 1.5 km or 5.5 km. (Author).

Download or read book The Monte Carlo Methods in Atmospheric Optics written by Guriĭ Ivanovich Marchuk and published by Springer. This book was released on 1980 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monte Carlo Calculations in Spherical shell Atmospheres written by W. G. Blättner and published by . This book was released on 1971 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The FLASH procedure was modified so that a printout of both the scattered intensity and the polarization parameters could be obtained as a function of the receiver polar and azimuthal angles. Calculations were run with FLASH for Rayleigh atmospheres with optical thicknesses of 0.25 and 1.0 for comparison with the data reported by Coulson, Dave and Sekera, and for a homogeneous Mie-Rayleigh atmosphere with a turbidity factor of 2 for comparison with the data reported by Bullrich, Eschelbach, et al. The FLASH procedure was modified so as to incorporate several methods of improving the accuracy of both single and higher order scattering calculations for twilight studies. The procedure was then used in a study to determine the effect of several assumed dust profiles on both the single and multiple scattered radiation under twilight illumination for 0.5 and 0.7 micrometer wavelength light. Results are presented which show how the color ratio (I(Lambda=0.7 micrometer)/I(Lambda=0.5 micrometer)) varies with the sun depression angle for a number of different dust profiles. (Author).

Download or read book The Monte Carlo Methods in Atmospheric Optics written by G.I. Marchuk and published by Springer. This book was released on 2014-10-05 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is devoted to urgent questions of the theory and applications of the Monte Carlo method for solving problems of atmospheric optics and hydrooptics. The importance of these problems has grown because of the increas ing need to interpret optical observations, and to estimate radiative balance precisely for weather forecasting. Inhomogeneity and sphericity of the atmos phere, absorption in atmospheric layers, multiple scattering and polarization of light, all create difficulties in solving these problems by traditional methods of computational mathematics. Particular difficulty arises when one must solve nonstationary problems of the theory of transfer of narrow beams that are connected with the estimation of spatial location and time characteristics of the radiation field. The most universal method for solving those problems is the Monte Carlo method, which is a numerical simulation of the radiative-transfer process. This process can be regarded as a Markov chain of photon collisions in a medium, which result in scattering or absorption. The Monte Carlo tech nique consists in computational simulation of that chain and in constructing statistical estimates of the desired functionals. The authors of this book have contributed to the development of mathemati cal methods of simulation and to the interpretation of optical observations. A series of general method using Monte Carlo techniques has been developed. The present book includes theories and algorithms of simulation. Numerical results corroborate the possibilities and give an impressive prospect of the applications of Monte Carlo methods.

Download or read book Photodiodes written by Jeong Woo Park and published by BoD – Books on Demand. This book was released on 2011-07-29 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photodiodes or photodetectors are in one boat with our human race. Efforts of people in related fields are contained in this book. This book would be valuable to those who want to obtain knowledge and inspiration in the related area.

Download or read book Multiple Light Scattering written by H Van de Hulst and published by Elsevier. This book was released on 2012-12-02 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple Light Scattering: Tables, Formulas, and Applications, Volume 1 serves to give concise and handy information related to multiple scattering theory in such a way that the reader would not have to rely on extensive literature on the subject. The book is divided into two parts. Part I: General Theory covers the basic concepts, terms, and notations related to multiple scattering theory; exponential integrals and related functions; reciprocity and detailed balance; different related methods; and homogenous atmospheres with arbitrary phase function and single-scattering albedo. Part II: Isotropic Scattering discusses related concepts such as solutions using the Milne operator; semi-infinite atmospheres; the H-functions; and finite slabs. The text is recommended for practitioners in optics, atmospheric physics, astronomy, and other fields that need a reference book in the subject of multiple light scattering.