Zobrazeno 1 - 10 of 67 pro vyhledávání: '"Germar Bernhard"'
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Akademický článek
Trends of UV Radiation in Antarctica
Autor: Germar Bernhard, Scott Stierle
Publikováno v: Atmosphere, Vol 11, Iss 8, p 795 (2020)
The success of the Montreal Protocol in curbing increases in harmful solar ultraviolet (UV) radiation at the Earth’s surface has recently been demonstrated. This study also provided evidence that the UV Index (UVI) measured by SUV-100 spectroradiom
Externí odkaz: https://doaj.org/article/a54ce739070b49dab4a33007a69c71b1
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2
Ozone, DNA-active UV radiation, and cloud changes for the near-global mean and at high latitudes due to enhanced greenhouse gas concentrations
Autor: Kostas Eleftheratos, John Kapsomenakis, Ilias Fountoulakis, Christos S. Zerefos, Patrick Jöckel, Martin Dameris, Alkiviadis F. Bais, Germar Bernhard, Dimitra Kouklaki, Kleareti Tourpali, Scott Stierle, J. Ben Liley, Colette Brogniez, Frédérique Auriol, Henri Diémoz, Stana Simic, Irina Petropavlovskikh, Kaisa Lakkala, Kostas Douvis
Publikováno v: Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, 2022, 22, pp.12827-12855. ⟨10.5194/acp-22-12827-2022⟩
This study analyses the variability and trends of ultraviolet-B (UV-B, wavelength 280–320 nm) radiation that can cause DNA damage. The variability and trends caused by climate change due to enhanced greenhouse gas (GHG) concentrations. The analysis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b50efa6f8db4b5440026e54b0f3aba5
https://doi.org/10.5194/acp-22-12827-2022
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5
Accurate 3-D radiative transfer simulation of spectral solar irradiance during the total solar eclipse of 21 August 2017
Autor: Bernhard Mayer, Germar Bernhard, Claudia Emde, Paul Ockenfuß
Publikováno v: Atmospheric Chemistry and Physics, Vol 20, Pp 1961-1976 (2020)
We calculate the variation of spectral solar irradiance in the umbral shadow of the total solar eclipse of 21 August 2017 and compare it to observations. Starting from the Sun's and Moon's positions, we derive a realistic profile of the lunar shadow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fde03588dbbf9ba5c18b37ecc69cf236
https://doi.org/10.5194/acp-20-1961-2020
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6
The success of the Montreal Protocol in mitigating interactive effects of stratospheric ozone depletion and climate change on the environment
Autor: Stephen R. Wilson, Rachel E. Neale, Sasha Madronich, Germar Bernhard, Krishna K. Pandey, Sharon A. Robinson, Paul Barnes, Anthony L. Andrady, Alkiviadis F. Bais, Craig E. Williamson, Thomas Matthew Robson, Anu Heikkilä, Janet F. Bornman, Richard G. Zepp, Patrick J. Neale
Publikováno v: Global change biologyREFERENCES. 27(22)
The Montreal Protocol and its Amendments have been highly effective in protecting the stratospheric ozone layer, preventing global increases in solar ultraviolet-B radiation (UV-B; 280-315 nm) at Earth's surface, and reducing global warming. While on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12083cd17e976a0755f5b5d4bfefb0dc
https://pubmed.ncbi.nlm.nih.gov/34392574
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8
Measurements of spectral irradiance during the solar eclipse of 21 August 2017: reassessment of the effect of solar limb darkening and of changes in total ozone
Autor: Germar Bernhard, Boyan Petkov
Publikováno v: Atmospheric Chemistry and Physics, Vol 19, Pp 4703-4719 (2019)
Measurements of spectral irradiance between 306 and 1020 nm were performed with a GUVis-3511 multi-channel filter radiometer at Smith Rock State Park, Oregon, during the total solar eclipse of 21 August 2017. The radiometer was equipped with a shad
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c0112b6acfdb1cd92dbbb8cee3ffbb8
https://doi.org/10.5194/acp-19-4703-2019
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9
Ozone—climate interactions and effects on solar ultraviolet radiation
Autor: Alkiviadis F. Bais, Makoto Deushi, Patrick Jöckel, Germar Bernhard, Richard McKenzie, Mohammad Ilyas, Paul Young, Pieter J. Aucamp
Publikováno v: Photochemical & Photobiological Sciences. 18:602-640
This report assesses the effects of stratospheric ozone depletion and anticipated ozone recovery on the intensity of ultraviolet (UV) radiation at the Earth's surface. Interactions between changes in ozone and changes in climate, as well as their eff
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::093befb340f1662cef379fe256979aec
https://doi.org/10.1039/c8pp90059k
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10
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020
Autor: Jens-Uwe Grooß, Kaisa Lakkala, Tove Marit Svendby, Rolf Müller, Bjørn Helge Johnsen, Iolanda Ialongo, Vitali Fioletov, Germar Bernhard, Gloria L. Manney
Publikováno v: Geophysical research letters 47(24), e2020GL090844 (2020). doi:10.1029/2020GL090844 special issue: "The Exceptional Arctic Polar Vortex in 2019/2020: Causes and Consequences"
Geophysical Research Letters
e2020GL090844
Measurements of solar ultraviolet radiation (UVR) performed between January and June 2020 at 10 Arctic and subarctic locations are compared with historical observations. Differences between 2020 and prior years are also assessed with total ozone colu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9226584e4b14fddcd7d98f3e1241288a
https://doi.org/10.1002/essoar.10504414.1
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