Long-range transport of continental radon in subantarctic and antarctic areas
International audience Gaseous Rn-222, a daughter product of U-238, is injected into the atmosphere from the surface of continents. Its atmospheric cycle is particularly simple since it disappears only by radioactive decay (half-life 3.8 days). Radon measurements obtained over more than 15 years in...
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ftceafr:oai:HAL:hal-03541045v1 2024-04-28T08:00:20+00:00 Long-range transport of continental radon in subantarctic and antarctic areas Polian, Georges Lambert, Gerard Ardouin, Benedicte Jegou, Alain Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) 1986 https://hal.science/hal-03541045 https://hal.science/hal-03541045/document https://hal.science/hal-03541045/file/Long%20range%20transport%20of%20continental%20radon%20in%20subantarctic%20and%20antarctic%20areas.pdf https://doi.org/10.3402/tellusb.v38i3-4.15126 en eng HAL CCSD Taylor & Francis info:eu-repo/semantics/altIdentifier/doi/10.3402/tellusb.v38i3-4.15126 hal-03541045 https://hal.science/hal-03541045 https://hal.science/hal-03541045/document https://hal.science/hal-03541045/file/Long%20range%20transport%20of%20continental%20radon%20in%20subantarctic%20and%20antarctic%20areas.pdf doi:10.3402/tellusb.v38i3-4.15126 info:eu-repo/semantics/OpenAccess ISSN: 0280-6509 EISSN: 1600-0889 Tellus B - Chemical and Physical Meteorology https://hal.science/hal-03541045 Tellus B - Chemical and Physical Meteorology, 1986, 38 (3-4), pp.178-189. ⟨10.3402/tellusb.v38i3-4.15126⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 1986 ftceafr https://doi.org/10.3402/tellusb.v38i3-4.15126 2024-04-04T01:39:58Z International audience Gaseous Rn-222, a daughter product of U-238, is injected into the atmosphere from the surface of continents. Its atmospheric cycle is particularly simple since it disappears only by radioactive decay (half-life 3.8 days). Radon measurements obtained over more than 15 years in remote stations in Antarctic and Subantarctic areas generally give concentrations as low as 0. I to 2 pCi.m-'. However, we have shown the existence of sharp increases of concentrations reaching 3 to 30 pCi'rn-' called "radonic storms". Owing to the negligible degassing of radon from the sea surface, such peaks are accounted for by long-range transport from remote continents (mainly South Africa) over Southern Indian and Antarctic oceans, with transit times ranging from 1.5 to 7 days and very low dilution factors of the order of 3 to 7. This airmass transport is related to warm sectors of cyclonic systems passing over South Africa and around the Antarctic continent. Article in Journal/Newspaper Antarc* Antarctic HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Tellus B: Chemical and Physical Meteorology 38 3-4 178 189 |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Polian, Georges Lambert, Gerard Ardouin, Benedicte Jegou, Alain Long-range transport of continental radon in subantarctic and antarctic areas |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Gaseous Rn-222, a daughter product of U-238, is injected into the atmosphere from the surface of continents. Its atmospheric cycle is particularly simple since it disappears only by radioactive decay (half-life 3.8 days). Radon measurements obtained over more than 15 years in remote stations in Antarctic and Subantarctic areas generally give concentrations as low as 0. I to 2 pCi.m-'. However, we have shown the existence of sharp increases of concentrations reaching 3 to 30 pCi'rn-' called "radonic storms". Owing to the negligible degassing of radon from the sea surface, such peaks are accounted for by long-range transport from remote continents (mainly South Africa) over Southern Indian and Antarctic oceans, with transit times ranging from 1.5 to 7 days and very low dilution factors of the order of 3 to 7. This airmass transport is related to warm sectors of cyclonic systems passing over South Africa and around the Antarctic continent. |
author2 |
Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Polian, Georges Lambert, Gerard Ardouin, Benedicte Jegou, Alain |
author_facet |
Polian, Georges Lambert, Gerard Ardouin, Benedicte Jegou, Alain |
author_sort |
Polian, Georges |
title |
Long-range transport of continental radon in subantarctic and antarctic areas |
title_short |
Long-range transport of continental radon in subantarctic and antarctic areas |
title_full |
Long-range transport of continental radon in subantarctic and antarctic areas |
title_fullStr |
Long-range transport of continental radon in subantarctic and antarctic areas |
title_full_unstemmed |
Long-range transport of continental radon in subantarctic and antarctic areas |
title_sort |
long-range transport of continental radon in subantarctic and antarctic areas |
publisher |
HAL CCSD |
publishDate |
1986 |
url |
https://hal.science/hal-03541045 https://hal.science/hal-03541045/document https://hal.science/hal-03541045/file/Long%20range%20transport%20of%20continental%20radon%20in%20subantarctic%20and%20antarctic%20areas.pdf https://doi.org/10.3402/tellusb.v38i3-4.15126 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0280-6509 EISSN: 1600-0889 Tellus B - Chemical and Physical Meteorology https://hal.science/hal-03541045 Tellus B - Chemical and Physical Meteorology, 1986, 38 (3-4), pp.178-189. ⟨10.3402/tellusb.v38i3-4.15126⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3402/tellusb.v38i3-4.15126 hal-03541045 https://hal.science/hal-03541045 https://hal.science/hal-03541045/document https://hal.science/hal-03541045/file/Long%20range%20transport%20of%20continental%20radon%20in%20subantarctic%20and%20antarctic%20areas.pdf doi:10.3402/tellusb.v38i3-4.15126 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3402/tellusb.v38i3-4.15126 |
container_title |
Tellus B: Chemical and Physical Meteorology |
container_volume |
38 |
container_issue |
3-4 |
container_start_page |
178 |
op_container_end_page |
189 |
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