Solar UV-B/A radiation is highly effective in inactivating SARS-CoV-2 [PDF]
Solar UV-C photons do not reach Earth’s surface, but are known to be endowed with germicidal properties that are also effective on viruses. The effect of softer UV-B and UV-A photons, which copiously reach the Earth’s surface, on viruses are instead ...
Fabrizio Nicastro+11 more
doaj +6 more sources
Solar UV and X-ray spectral diagnostics [PDF]
X-ray and ultraviolet (UV) observations of the outer solar atmosphere have been used for many decades to measure the fundamental parameters of the solar plasma. This review focuses on the optically thin emission from the solar atmosphere, mostly found at
Giulio Del Zanna, Helen E. Mason
doaj +9 more sources
Reconstruction of solar UV irradiance since 1974 [PDF]
Variations of the solar UV irradiance are an important driver of chemical and physical processes in the Earth's upper atmosphere and may also influence global climate. Here we reconstruct solar UV irradiance in the range 115-400 nm over the period 1974-2007 by making use of the recently developed empirical extension of the SATIRE models employing SUSIM
Natalie A. Krivova+3 more
arxiv +6 more sources
Perception of solar UV radiation by plants: photoreceptors and mechanisms. [PDF]
About 95% of the ultraviolet (UV) photons reaching the Earth’s surface are UV-A (315–400 nm) photons. Plant responses to UV-A radiation have been less frequently studied than those to UV-B (280–315 nm) radiation.
Rai N, Morales LO, Aphalo PJ.
europepmc +2 more sources
UV solar irradiance in observations and the NRLSSI and SATIRE-S models [PDF]
Total solar irradiance and UV spectral solar irradiance have been monitored since 1978 through a succession of space missions. This is accompanied by the development of models aimed at replicating solar irradiance by relating the variability to solar magnetic activity.
Ball, W. T.+5 more
arxiv +3 more sources
Dissolved organic matter protects mosquito larvae from damaging solar UV radiation. [PDF]
Mosquitoes have increased in their abundance and geographic distribution in northeastern North America, coinciding with an increase in extreme precipitation events and up to a doubling of dissolved organic matter (DOM) concentrations in some inland ...
Nicole L Berry+3 more
doaj +2 more sources
Review on Nonoccupational Personal Solar UV Exposure Measurements [PDF]
Solar ultraviolet (UV) radiation follows people during their whole life. Exposure to UV radiation is vital but holds serious risks, too. The quantification of human UV exposure is a complex issue.
A. Schmalwieser, A. Siani
semanticscholar +3 more sources
The total solar irradiance, UV emission and magnetic flux during the last solar cycle minimum [PDF]
We have analyzed the total solar irradiance (TSI) and the spectral solar irradiance as ultraviolet emission (UV) in the wavelength range 115-180 nm, observed with the instruments TIM and SOLSTICE within the framework of SORCE (The Solar Radiation and Climate Experiment) during the long solar minimum between the 23rd and 24th cycles.
Benevolenskaya, E. E.+1 more
arxiv +6 more sources
Compact solar UV burst triggered in a magnetic field with a fan-spine topology [PDF]
Solar UV bursts are small-scale features that exhibit intermittent brightenings that are thought to be due to magnetic reconnection. They are observed abundantly in the chromosphere and transition region, in particular in active regions. We investigate in detail a UV burst related to a magnetic feature that is advected by the moat flow from a sunspot ...
L. P. Chitta+3 more
arxiv +3 more sources
Quality assessment of solar UV irradiance measured with array spectroradiometers [PDF]
The reliable quantification of ultraviolet (UV) radiation at the earth's surface requires accurate measurements of spectral global solar UV irradiance in order to determine the UV exposure to human skin and to understand long-term trends in this ...
L. Egli+11 more
doaj +2 more sources