The impact of the Solar magnetic field on 7 Be activity concentration in aerosols

Rajačić, Milica; Todorović, Dragana; Nikolić, Jelena Krneta; Puzović, J.

doi:10.1016/j.apradiso.2017.04.008

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Global atmospheric processes which are expected to change due to global warming can be indirectly observed by monitoring cosmogenic radionuclides. In this study, measurements of the ground-level activity concentrations are used as a proxy of vertical exchange and circulation patterns 26,[30][31][32][33][34][35][36][37] .…”

Section: Radioisotopes Demonstrate Changes In Global Atmospheric Circmentioning

confidence: 99%

“…production through cosmic Rays. The production of cosmogenic radioisotopes in the UTLS region is governed by incoming cosmic rays 35,46,[48][49][50][51] . The incoming flux of cosmic rays is not constant but modulated by the approximately 11-year cycle of solar activity 52 .…”

Section: Radioisotopes Demonstrate Changes In Global Atmospheric Circmentioning

confidence: 99%

“…The other stations show weak positive (37 stations) or even negative (7 stations) correlations not significant at the α = 0.05 level. At these stations the correlation is overprinted by atmospheric processes and due to the mixing of old and fresh air masses during transport 34,35 .…”

Section: Radioisotopes Demonstrate Changes In Global Atmospheric Circmentioning

confidence: 99%

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Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Terzi

Wotawa

Schoeppner

et al. 2020

Sci Rep

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In this paper, we present a new method to study global atmospheric processes and their changes during the last decade. A cosmogenic radionuclide measured at ground-level, beryllium-7, is utilized as a proxy to study atmospheric dynamics. Beryllium-7 has two advantages: First, this radionuclide, primarily created in the lower stratosphere, attaches to aerosols that are transported downwards to the troposphere and travel around the globe with the general atmospheric circulation. By monitoring these particles, we can provide a global, simple, and sustainable way to track processes such as multi-annual variation of the troposphere, tropopause heightening, position and speed of atmospheric interface zones, as well as the poleward movement and stalling patterns of jet streams. Second, beryllium-7 is a product of cosmic rays which are themselves directly linked to solar activity and the earth magnetic field. This study shows whether beryllium-7 observed concentration changes are correlated with such natural processes or independent of them. Our work confirms that major changes in the atmospheric circulation are currently ongoing, even though timeseries are too short to make climatological assessments. We provide solid evidence of significant and progressive changes of the global atmospheric circulation as well as modifications of tropopause heights over the past decade. As the last decade happened to be the warmest on record, this analysis also indicates that the observed changes are, at least to some extent, attributable to global warming.

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Section: Radioisotopes Demonstrate Changes In Global Atmospheric Circmentioning

confidence: 99%

Section: Radioisotopes Demonstrate Changes In Global Atmospheric Circmentioning

confidence: 99%

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Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Terzi

Wotawa

Schoeppner

et al. 2020

Sci Rep

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“…Moreover, 7 Be was only observed for H. virgatum, while in the rest of the algae it was not detected. 7 Be is found in the atmosphere (Rajacic et al, 2017). As mentioned in Section 2, H. virgatum is found in areas which emerge during low tide, so it is exposed to interaction with the atmosphere and its components while the other algae species always stay underwater.…”

Section: Radionuclide Concentrationmentioning

confidence: 89%

Natural radioactivity in algae arrivals on the Canary coast and dosimetry assessment

Tejera

Pérez-Sánchez

Guerra

et al. 2019

Science of The Total Environment

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“…Their residence time in the atmosphere is around 20 days (5,6). The presence of 7 Be and 22 Na is detected regularly in aerosols, rainwater (wet fallout), and dry deposition through environmental radioactivity monitoring (ERM) programmes (7)(8)(9). These ERMs are designed to assess exposure doses for the general population through various sources of external radiation and pathways of radionuclide intake.…”

mentioning

confidence: 99%

Negative correlation between the number of sunspots and the occurrence of ⁷Be and ²²Na in the surface air and their contribution to radiation doses

Brodnik

Glavič-Cindro

Korun

et al. 2019

Archives of Industrial Hygiene and Toxicology

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This article presents yearly mean concentrations of cosmogenic radionuclides 7Be and 22Na occurring in dry and wet depositions (fallout) and aerosols. Time dependencies negatively correlated with the yearly mean number of sunspots. Activity concentrations of 7Be and 22Na in aerosols in the surface air had a correlation of near-unity. 7Be in aerosols exhibited a smoother time dependence than 22Na, implying that the production of 22Na is more sensitive to the solar activity than the production of 7Be. The effect of the measured doses on the general population through internal and external exposure to radiation from cosmogenic radionuclides was small.

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The impact of the Solar magnetic field on 7 Be activity concentration in aerosols

Cited by 5 publications

References 6 publications

Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Natural radioactivity in algae arrivals on the Canary coast and dosimetry assessment

Negative correlation between the number of sunspots and the occurrence of ⁷Be and ²²Na in the surface air and their contribution to radiation doses

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The impact of the Solar magnetic field on 7 Be activity concentration in aerosols

Cited by 5 publications

References 6 publications

Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Radioisotopes demonstrate changes in global atmospheric circulation possibly caused by global warming

Natural radioactivity in algae arrivals on the Canary coast and dosimetry assessment

Negative correlation between the number of sunspots and the occurrence of 7Be and 22Na in the surface air and their contribution to radiation doses

Contact Info

Product

Resources

About

Negative correlation between the number of sunspots and the occurrence of ⁷Be and ²²Na in the surface air and their contribution to radiation doses