Clear sky
Effects of aerosols on clear sky solar radiation in the ALADIN HIRLAM NWP system
... assuming clear-sky con- ditions, model-level cloud water and cloud ice values were manually removed from each of the hourly atmospheric pro- file files generated for ...the sky was clear until ...
17
Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative
... We gathered UVI data spanning at least the period from 2000 to 2017 for six stations representing six latitudinal bands. The various stations and their characteristics are pre- sented in Table 4. They are all part of the ...
24
Accounting for the effects of sastrugi in the CERES clear-sky Antarctic shortwave angular distribution models
... the clear-sky permanent snow scenes (mostly Greenland and Antarctica) examined in this paper, the existing ADMs were separated into two scene types, bright or dark (Kato and Loeb, ...
13
How the clear sky angle of polarization pattern continues underneath clouds: full sky measurements and implications for animal orientation
... cloudy sky is the proportion P of the celestial polarization pattern available for use in animal ...of clear and cloudy skies using 180 ° (full-sky) imaging polarimetry in the red (650 nm), green ...
10
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 conditions at ...
16
Improving HelioClim-3 estimates of surface solar irradiance using the McClear clear-sky model and recent advances in atmosphere composition
... under clear skies from the new McClear clear-sky model, whose inputs are the ad- vanced global aerosol property forecasts and physically con- sistent total column content in water vapour and ozone ...
7
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 ...
19
A total sky cloud detection method using real clear sky background
... - sky images and classified the sun, blue sky, and clouds using the threshold curve developed from 2-D BI and SI coordi- ...a clear-sky function to identify clear, thin, and opaque ...
11
Application of Remotely Sensed Data in the Estimation of Net Radiation at the Earth’s Surface in Clear Sky Conditions
... and comparison with in situ measurements were carried out [2]. It was seen that a good accuracy is achieved in deriving the longwave, shortwave and net radiation from satellite data and the satellite data are useful in ...
6
The potential of clear-sky carbon dioxide satellite retrievals
... The clear-sky and full-physics retrieval mean error spatial patterns are sim- ilar and both relatively small in magnitude, which indicates that they do not contain large regional biases and, more im- ...
14
Polarization singularities in the clear sky
... two clear-sky cases at the United States Naval Academy in Annapolis, ...the clear sky in each fisheye photograph occupies an area ∼ 690 pixels on a side, in figure 5 we sample γ (ζ) only at ...
14
‘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] ...
45
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 ...
10
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 observations, ...
21
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 ...
5
A simple parameterization of the short-wave aerosol optical properties for surface direct and diffuse irradiances assessment in a numerical weather model
... Abstract. Broadband short-wave (SW) surface direct and diffuse irradiances are not typically within the set of output variables produced by numerical weather prediction (NWP) models. However, they are frequently ...
16
Application of Response Surface and Factorial Regression Models in Estimating Global Solar Radiation and Ultraviolet Index
... El-shanshoury et al (2017), developed the model with multiple regression equation for Sharm El-Sheikh city. This model differs from other searchers empirical models that predict the monthly clear sky ...
25
An automated method for the evaluation of the pointing accuracy of Sun-tracking devices
... Next, we focus on the evaluation of Sun-tracking accu- racy during variable cloud cover as well as on days with nearly continuous cloud coverage, where active-tracking mode (manufacturer requirement is denoted by a total ...
10
Exonephology : transmission spectra from a 3D simulated cloudy atmosphere of HD 209458b
... two clear-sky atmospheres with PT profiles cor- responding to an atmosphere prior to and after modification by ra- diatively active clouds, a cloudy simulation with full opacity from our mixed-composition ...
12
Seasonal distribution of aerosol properties over Europe and their impact on UV irradiance
... The comparison between model and measured erythemally-weighted irradiance losses in clear sky conditions with single scattering albedo and factor of asymmetry parameters derived from t[r] ...
16