Results 1 - 10 of 292

INFORMATION SURFING FOR RADIATION MAP BUILDING

by R. A. Cortez, H. G. Tanner, R. Lumia, C. T. Abdallah
"... We develop a control scheme for a group of mobile sensors to map radiation over a given planar polygonal region. The advantage of this methodology is that it provides quick situational awareness regarding radiation levels, which is being updated and refined in real-time as more measurements become a ..."
Abstract - Cited by 7 (3 self) - Add to MetaCart
We develop a control scheme for a group of mobile sensors to map radiation over a given planar polygonal region. The advantage of this methodology is that it provides quick situational awareness regarding radiation levels, which is being updated and refined in real-time as more measurements become

Surface radiation budgets in support of the GEWEX

by ; ) Pinker , J Dan Tarpley ; Istvan Laszlo , ; Kenneth , E Mitchell ; Paul , R Houser ; Lifeng Luo - Continental Scale International Project (GCIP) and the GEWEX Americas Prediction Project (GAPP), including the North American Land Data Assimilation System (NLDAS , 2003
"... Office of Hydrologic Development (NOAA/NWS) Background Information on the spatial and temporal distribution of surface and top of the atmosphere (TOA) radiation budget is required for modeling the hydrologic cycle, for representing interactions and feedbacks between the atmosphere and the terrestr ..."
Abstract - Cited by 15 (1 self) - Add to MetaCart
on instantaneous, daily, monthly mean surface and TOA shortwave and photosynthetically active radiative fluxes are provided at the University of Maryland World Wide Web site almost in real time. 7 3. The inference model General features A modified version of the GEWEX SRB algorithm In the SRB algorithm

Narrowband to broadband conversions of land surface albedo: I. Algorithms

by Shunlin Liang - REMOTE SENSING OF THE ENVIRONMENT , 2000
"... Land surface broadband albedo is a critical variable for many scientific applications. High-resolution narrowband satellite observations contain important information that enables us to map land surface albedo globally, and validate the coarse-resolution albedo products from the broadband sensors us ..."
Abstract - Cited by 83 (9 self) - Add to MetaCart
measurements and satellite observations or radiative transfer simulations with the limited number of surface reflectance spectra because of the computational constraints. As a result, many conversion formulae for the same sensors are quite different. In this study, we applied an approach that decouples surface

Robotic Radionuclide Inspection and Mapping of Surface Contamination On Building Surfaces

by Georg F Mauer , Chris Kawa
"... ABSTRACT The mapping of localized regions of radionuclide contamination in a building can be a time consuming and costly task. Humans moving hand-held radiation detectors over the target areas are subject to fatigue. A contamination map based on manual surveys can contain significant operator-induc ..."
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ABSTRACT The mapping of localized regions of radionuclide contamination in a building can be a time consuming and costly task. Humans moving hand-held radiation detectors over the target areas are subject to fatigue. A contamination map based on manual surveys can contain significant operator

BUILDING ENERGY SIMULATION WITH EASE

by Duo R, Michel A. Bernier, Département De Génie Mécanique, École Polytechnique De Montréal, Montréal Hc A Canada
"... This paper describes a relatively simple software tool that has been developed to perform annual hour-by-hour energy simulation of a building. It extends earlier work performed for one-zone buildings (Bernier and Randriamiarinjatovo, 2001) to buildings that can be represented by five thermally simil ..."
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This paper describes a relatively simple software tool that has been developed to perform annual hour-by-hour energy simulation of a building. It extends earlier work performed for one-zone buildings (Bernier and Randriamiarinjatovo, 2001) to buildings that can be represented by five thermally

The Simulation Of Photovoltaic-Integrated Building Facades

by Clarke Johnstone Kelly, Clarke J A, Johnstone C, Kelly N, Strachan P A
"... This paper describes a recent extension to the ESPr system concerned with the simulation of facadeand roof-integrated photovoltaic modules. The algorithms are described for predicting electrical power output as a function of module characteristics, incident solar radiation and module temperature. Th ..."
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This paper describes a recent extension to the ESPr system concerned with the simulation of facadeand roof-integrated photovoltaic modules. The algorithms are described for predicting electrical power output as a function of module characteristics, incident solar radiation and module temperature

DYNAMIC THERMAL BUILDING ANALYSIS WITH CFD – MODELLING RADIATION

by Zitzmann T, Pfrommer P, Cook M. J
"... In an attempt to reduce the high computational efforts for dynamic thermal simulations using Computational Fluid Dynamics (CFD) the authors have recently developed an adaptive freeze-flow method (i.e. freezing of flow equations over variable time periods). This paper documents the work that has been ..."
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an unrealistic radiation distribution on the surfaces was observed for the Monte Carlo model. A further investigation of the Discrete Transfer model for the cooling of a solid wall has shown that the adaptive freeze-flow method is an efficient and accurate way to carry out dynamic thermal CFD simulations which

MAPPING NATURAL SURFACE UV RADIATION WITH MSG: FIRST MAPS AND COMPARISON WITH METEOSAT DERIVED RESULTS AND REFERENCE MEASUREMENTS

by J. Verdebout, J. Gröbner
"... The method for mapping surface UV radiation using MSG follows the general scheme previously used with METEOSAT. It basically consists in using a standard radiative transfer code (UVspec) and in exploiting various sources of information to assign values to the parameters influencing the surface UV ra ..."
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The method for mapping surface UV radiation using MSG follows the general scheme previously used with METEOSAT. It basically consists in using a standard radiative transfer code (UVspec) and in exploiting various sources of information to assign values to the parameters influencing the surface UV

Empirical validation of models to compute solar irradiance on inclined surfaces for building energy simulation

by P G Loutzenhiser , H Manz , C Felsmann , P A Strachan , T Frank , G M Maxwell - Solar Energy , 2007
"... Abstract Accurately computing solar irradiance on external facades is a prerequisite for reliably predicting thermal behavior and cooling loads of buildings. Validation of radiation models and algorithms implemented in building energy simulation codes is an essential endeavor for evaluating solar g ..."
Abstract - Cited by 11 (2 self) - Add to MetaCart
Abstract Accurately computing solar irradiance on external facades is a prerequisite for reliably predicting thermal behavior and cooling loads of buildings. Validation of radiation models and algorithms implemented in building energy simulation codes is an essential endeavor for evaluating solar

An Illumination Model for a Skin Layer Bounded by Rough Surfaces

by Jos Stam - IN PROCEEDINGS OF THE 12TH EUROGRAPHICS WORKSHOP ON RENDERING TECHNIQUES , 2001
"... In this paper we present a novel illumination model that takes into account multiple anisotropic scattering in a layer bounded by two rough surfaces. We compute the model by a discrete-ordinate solution of the equation of radiative transfer. This approach is orders of magnitude faster than a Mont ..."
Abstract - Cited by 31 (0 self) - Add to MetaCart
Monte Carlo simulation and does not suffer from any noisy artifacts. By fitting low order splines to our results we are able to build analytical shaders. This is highly desirable since animators typically want to texture map the parameters of such a shader for higher realism. We apply our model
Results 1 - 10 of 292