clear-sky conditions
McClear: a new model estimating downwelling solar radiation at ground level in clear-sky conditions
... fast clear-sky model called McClear was developed to estimate the downwelling shortwave direct and global irradiances received at ground level under clear ...in clear-sky ...
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Application of Remotely Sensed Data in the Estimation of Net Radiation at the Earth’s Surface in Clear Sky Conditions
... data in clear sky conditions. The model results are validated using simultaneous ground based measurements for the months of March and April in 2013, representative of the warm season and the months ...
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Multispectral information from TANSO-FTS instrument – Part 1: Application to greenhouse gases (CO 2and CH4 ) in clear sky conditions
... In order to quantify the impact of the spectral synergy on the retrieval accuracy, we performed an information content (IC) analysis from simulated spectra corresponding to the three inf[r] ...
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Seasonal changes in surface albedo of Himalayan glaciers from MODIS data and links with the annual mass balance
... under clear sky conditions at the AWSs with the BS albedo retrieved by MODImLab and MOD10 algorithm on the correspond- ing pixel for both glaciers ...
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Effects of aerosols on clear sky solar radiation in the ALADIN HIRLAM NWP system
... Using unrealistic aerosol distributions can lead to consid- erable errors in meteorological forecasts. Milton et al. (2008) showed that excluding the direct radiative effect of mineral dust and biomass burning aerosols ...
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Improving HelioClim-3 estimates of surface solar irradiance using the McClear clear-sky model and recent advances in atmosphere composition
... How can such advanced data sets on aerosol properties, water vapour and ozone be exploited to bring a significant improvement to the widely used HC3 without re-factoring the Heliosat-2 method and re-processing all ...
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An automated method for the evaluation of the pointing accuracy of Sun-tracking devices
... meteorological conditions: (i) nearly continuous clear sky, (ii) clear sky interrupted by frontal movement, (iii) variable cloud cover, and (iv) nearly perpetual overcast ...continuous ...
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Technical note: A low-cost albedometer for snow and ice measurements – theoretical results and application on a tropical mountain in Bolivia
... coming signal recorded by the sensor for any given wave- length and is reported in Fig. 2. This figure shows that the spectral response of the sensor increases from 20 to 100 % between 0.26 and 0.915 µm and then ...
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Lee wave detection over the Mediterranean Sea using the Advanced Infra-Red WAter Vapour Estimator (AIRWAVE) total column water vapour (TCWV) dataset
... Recently, Casadio et al. (2016) developed the Advanced Infra-Red WAter Vapour Estimator (AIRWAVE) algorithm to obtain TCWV from the measurements of the Along Track Scanning Radiometer (ATSR) instrument series. The appli- ...
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A total sky cloud detection method using real clear sky background
... The purpose of this paper was to introduce a new cloud detec- tion algorithm for the total sky partly cloudy images. Tradi- tionally, the 2-D R/B methods were widely used and accepted as standard algorithms to ...
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A simple parameterization of the short-wave aerosol optical properties for surface direct and diffuse irradiances assessment in a numerical weather model
... with the simple methods that can be used to obtain GHI (e.g., Dudhia, 1989). However, the computational capabili- ties have grown enough to allow the use of more rigorous and precise methods to solve the atmospheric ...
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Carbon monoxide total column retrievals from TROPOMI shortwave infrared measurements
... for clear sky conditions are highly sensitive to the tropospheric boundary ...for clear sky and cloudy observations with low cloud ...including clear sky and cloudy ...
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How the clear sky angle of polarization pattern continues underneath clouds: full sky measurements and implications for animal orientation
... in the effective aperture with increasing angle of incidence; (iv) the colour density curves of the colour reversal films (used as detectors) provided by the manufacturer; (v) the measured brightness and contrast ...
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Optimal Duration of Sun Exposure for Adequate Cutaneous Synthesis of Vitamin D in Indian Cities: An Estimate Using Satellite-Based Ultraviolet Index Data
... a) Pre Monsoon Season: March - May, Southwest Monsoon Season: June-September, Post Monsoon Season: October - De- cember. The daily UV index values were averaged for a particu- lar season. The UV Index values were ...
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Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative
... face UV-B flux algorithm (Tanskanen et al., 2007). OMU- VBd has previously been evaluated against ground-based stations. Tanskanen et al. (2007) found a median overesti- mation of 0 % to 10 % of the erythemal doses ...
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Energy and Exergy Analysis of Crystalline Silicon Solar Photovoltaic Module for clear sky Day at Bhopal
... are clear sky and after two to three week monsoon clouds begin to appear so that few days are cloudy and few days are ...was Clear sky day, Hazy day & cloudy day at three different dates ...
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‘Like a clap of thunder in a clear sky’ : differential mortality during Savannah's yellow fever epidemic of 1854
... Even though yellow fever was not a regular visitor to Savannah locals knew from reading newspaper accounts of epidemics elsewhere that it was a disease to be avoided if at all possible a[r] ...
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Accounting for the effects of sastrugi in the CERES clear-sky Antarctic shortwave angular distribution models
... not clear, it may be the result of the SSFM data set having reduced spatial and temporal sam- pling over desert areas compared to Antarctica, or it may be that this approach is not suitable for deserts which are ...
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The impact of Ozone layer depletion on environmental - A Review
... where clear-sky measurements performed at six different stations demonstrate that ozone decreases lead to increased UV radiation at the surface in amounts that are in good agreement with that expected from ...
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1. Assessment of design sky for design of day lighting in buildings in capital region - delhi, india.
... design sky to work out the desirable daylight to requirement to indoor functional ...Design sky is not known to a particular station, the opening design may contribute to either under lighting or over ...
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