Atmospheric modulations of the ratio of UVB to broadband solar radiation: effect of ozone, water vapour, and aerosols at Qena, Egypt

2013 ◽  
Vol 34 (7) ◽  
pp. 2477-2488 ◽  
Author(s):  
M. El-Nouby Adam
Keyword(s):  
Solar Radiation ◽  
Water Vapour ◽  
Radiation Effect

scholarly journals Solar Radiation Effect on Crop Production

10.5772/34796 ◽  
2012 ◽  
Author(s):  
Carlos Campillo ◽  
Rafael Fortes ◽  
Maria del Henar Prieto
Keyword(s):  
Solar Radiation ◽  
Crop Production ◽  
Radiation Effect

Large-eddy simulation of the plume generated by the fire at the Buncefield oil depot in December 2005

2008 ◽  
Vol 465 (2102) ◽  
pp. 397-419 ◽  
Author(s):  
B.J Devenish ◽  
J.M Edwards
Keyword(s):  
Solar Radiation ◽  
Large Eddy Simulation ◽  
Water Vapour ◽  
Maximum Concentration ◽  
Initial Conditions ◽  
Aerosol Concentration ◽  
Eddy Simulation ◽  
Incoming Solar Radiation ◽  
Small Depth ◽  
Large Eddy

The explosion at the Buncefield oil depot in Hertfordshire, UK on 11 December 2005 produced the largest fire in Europe since the Second World War. The magnitude of the fire and the scale of the resulting plume thus present a stringent test of any mathematical model of buoyant plumes. A large-eddy simulation of the Boussinesq equations with suitable initial conditions is shown to reproduce the characteristics of the observed plume; both the height of the plume above the source and the direction of the downwind spread agree with the observations. This supports the use of the Boussinesq assumption, even for such a powerful plume as the one generated by the Buncefield fire. The presence of a realistic water vapour profile does not lead to significant additional latent heating of the plume, but does lead to a small increase in the final rise height of the plume due to the increased buoyancy provided by the water vapour. Our simulations include the interaction of radiation with the aerosol in the plume, and reproduce the observed optical thickness of the plume and the reduction of solar radiation reaching the ground. Far downwind of the source, solar radiation is shown to play a role in lofting the laterally spreading plume, but the manner in which it does so depends on the aerosol concentration. In the case of high aerosol concentration, the thickness of the plume increases; the incoming solar radiation is absorbed over such a small depth that only the top of the plume is lofted upwards and the level of maximum concentration remains almost unchanged relative to the case with no radiation. When the aerosol concentration is low, the whole plume is heated by the incoming solar radiation and the lofting is more coherent, with the result that the level of maximum concentration increases relative to the case with no radiation, but the thickness of the plume increases only slightly.

scholarly journals Solar radiation effect on the complexation capacity of aquatic humic substances with metals

2012 ◽  
Vol 23 (10) ◽  
pp. 1871-1879 ◽  
Author(s):  
Camila A. Melo ◽  
Ana L. De Toffoli ◽  
Altair B. Moreira ◽  
Márcia C. Bisinoti
Keyword(s):  
Solar Radiation ◽  
Humic Substances ◽  
Radiation Effect ◽  
Aquatic Humic Substances ◽  
Complexation Capacity

scholarly journals Importance of air pressure in the compensation for the solar radiation effect on temperature sensors of radiosondes

2016 ◽  
Vol 23 (4) ◽  
pp. 691-697 ◽  
Author(s):  
Sang-Wook Lee ◽  
Byung Il Choi ◽  
Jong Chul Kim ◽  
Sang-Bong Woo ◽  
Seongchong Park ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Radiation Effect ◽  
Temperature Sensors ◽  
Air Pressure

scholarly journals Spatial and Temporal Variation of Aerosol and Water Vapour Effects on Solar Radiation in the Mediterranean Basin during the Last Two Decades

2020 ◽  
Vol 12 (8) ◽  
pp. 1316 ◽  
Author(s):  
Maria A. Obregón ◽  
Maria João Costa ◽  
Ana Maria Silva ◽  
Antonio Serrano
Keyword(s):  
Solar Radiation ◽  
Temporal Variation ◽  
Water Vapour ◽  
Mediterranean Basin ◽  
Radiant Energy ◽  
Energy System ◽  
Spatial And Temporal Variation ◽  
Precipitable Water Vapour ◽  
The Mediterranean ◽  
The Mediterranean Basin

This study aims to calculate and analyse the spatial and temporal variation of aerosol optical thickness (AOT) and precipitable water vapour (PWV) and their effects on solar radiation at the surface in the Mediterranean basin, one of the maritime areas with the largest aerosol loads in the world. For the achievement of this objective, a novel and validated methodology was applied. Satellite data, specifically CERES (Clouds and the Earth’s Radiant Energy System) SYN1deg products during the period 2000–2018, were used. Results show that the spatial distribution of AOT and PWV are closely linked to the spatial distributions of its effects on solar radiation. These effects are negative, indicating a reduction of solar radiation reaching the surface due to aerosol and water vapour effects. This reduction ranges between 2% and 8% for AOT, 11.5% and 15% for PWV and 14% and 20% for the combined effect. The analysis of the temporal distribution has focused on the detection of trends from their anomalies. This study has contributed to a better understanding of AOT and PWV effects on solar radiation over the Mediterranean basin, one of the most climatically sensitive regions of the planet, and highlighted the importance of water vapour.

scholarly journals “Reduction of the level of the radiation effect on space SA photoconverters with the use of solar radiation concentrators”

2008 ◽  
Vol 44 (4) ◽  
pp. 302-302
Author(s):  
V. A. Grilikhes ◽  
A. A. Soluyanov ◽  
O. I. Chosta ◽  
M. Z. Shvarts
Keyword(s):  
Solar Radiation ◽  
Radiation Effect
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