Results 11 to 20 of about 5,686 (263)
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018 With the move of satellite systems towards Ka and Q/V bands, the Alphasat TDP5 Aldo Paraboni scientific experiment aims to characterize atmospheric attenuation in those bands. However, during the retrieval of the attenuation from the measured beacon signal, the clear-sky contribution to attenuation is lost.
Quibus, Laurent +4 more
core +5 more sources
Clear sky solar illuminance using visual band irradiance
Journal of Energy in Southern Africa, 2017 Solar illuminance may be quantified by applying relevant efficacy functions to available full spectrum ground irradiance. Alternatively, illuminance may be determined by applying the Photopic function to ground level irradiance spectra obtained from the ...
A. Nurick
doaj +2 more sources
Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling [PDF]
Atmospheric Measurement Techniques, 2021 Ground-based microwave radiometer (MWR) observations of downwelling brightness temperature (TB) are commonly used to estimate atmospheric attenuation at relative transparent channels for radio propagation and telecommunication purposes.
A. Alyosef +16 more
doaj +1 more source
Evaluation of forward-modelled attenuated backscatter using an urban ceilometer network in London under clear-sky conditions [PDF]
Atmospheric Environment, 2018 Numerical weather prediction (NWP) of urban aerosols is increasingly sophisticated and accurate. In the absence of large particles (e.g. rain, cloud droplets), information on atmospheric aerosols can be obtained from single wavelength automatic lidars and ceilometers (ALC) that measure profiles of attenuated backscatter (βo).
Elliott Warren +6 more
openaire +1 more source
Energies, 2022 Solar radiation is by nature intermittent and influenced by many factors such as latitude, season and atmospheric conditions. As a consequence, the growing penetration of Photovoltaic (PV) systems into the electricity network implies significant problems
Alessandro Niccolai +4 more
doaj +1 more source
Impact of Aerosol and Cloud on the Solar Energy Potential over the Central Gangetic Himalayan Region
Remote Sensing, 2021 We examine the impact of atmospheric aerosols and clouds on the surface solar radiation and solar energy at Nainital, a high-altitude remote location in the central Gangetic Himalayan region (CGHR).
Umesh Chandra Dumka +3 more
doaj +1 more source
Simplified Clear-Sky radiative transfer Model (SCSM)
, 2021 The code includes relevant functions for clear-sky radiative transfer calculations over ocean under low atmospheric aerosol load. The clear-sky radiance over ocean in the visible range (here at 807 nm) depends on a narrow set of parameters and can be ...
Mieslinger, Theresa
core +1 more source
Comparison between experimental and satellite temperature datasets in Covenant University
Data in Brief, 2018 This article contains the ground and satellite meteorological data sets of clear-sky temperature events for five years (2012–2016) in Covenant University, Ota, Ogun State, Nigeria. The satellite data were obtained from Atmospheric Infrared Sounder (AIRS)
Sayo A. Akinwumi +7 more
doaj +1 more source
Analyzing Spatial Variations of Cloud Attenuation by a Network of All-Sky Imagers [PDF]
, 2022 All-sky imagers (ASIs) can be used to model clouds and detect spatial variations of cloud attenuation. Such cloud modeling can support ASI-based nowcasting, upscaling of photovoltaic production and numeric weather predictions.
Pitz-Paal, Robert +19 more
core +1 more source
Daylight Performances of Atrium Buildings for Different Roof Configuration Under Malaysia Sky Conditions [PDF]
MATEC Web of Conferences, 2019 The research endeavours to fill the identified gap in the field’s knowledge on daylighting in atriums, specifically under tropical sky conditions.
Yunus Julitta +2 more
doaj +1 more source