Total ozone decrease in the Arctic after REP events
International audience Eight periods of relativistic electron precipitation (REP) with electron energies of more than 300 keV are identified from VLF data (10-14 kHz) monitored along the Aldra (Norway) - Apatity (Kola peninsula) radio trace. In these cases, anomalous ionization below 55-50 km occurr...
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ftccsdartic:oai:HAL:hal-00316599v1 2023-11-12T04:12:36+01:00 Total ozone decrease in the Arctic after REP events Roldugin, V. C. Beloglazov, M. I. Remenets, G. F. Polar Geophysical Institute of Russian Academy of Sciences (PGI) Russian Academy of Sciences Moscow (RAS) Institute of Radiophysics 2000 https://hal.science/hal-00316599 https://hal.science/hal-00316599/document https://hal.science/hal-00316599/file/angeo-18-332-2000.pdf en eng HAL CCSD European Geosciences Union hal-00316599 https://hal.science/hal-00316599 https://hal.science/hal-00316599/document https://hal.science/hal-00316599/file/angeo-18-332-2000.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316599 Annales Geophysicae, 2000, 18 (3), pp.332-336 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2000 ftccsdartic 2023-10-21T23:08:22Z International audience Eight periods of relativistic electron precipitation (REP) with electron energies of more than 300 keV are identified from VLF data (10-14 kHz) monitored along the Aldra (Norway) - Apatity (Kola peninsula) radio trace. In these cases, anomalous ionization below 55-50 km occurred without disturbing the higher layers of the ionosphere. The daily total ozone values in Murmansk for six days before and six days after the REP events are compared. In seven of eight events a decrease in the total ozone of about 20 DU is observed. In one event of 25 March, 1986, the mean total ozone value for six days before the REP is bigger than that for six days after, but this a case of an extremely high ozone increase (144 DU during the six days). However, on days 3 and 4 there was a minimum of about 47 DU with regard to REP days, so this case also confirms the concept of the ozone decrease after REP. The difference between mean ozone values for periods six days before and six days after the REPs was found also for 23 points in Arctic on TOMS data. The difference was negative only in Murmansk longitudinal sector. Along the meridian of the trace it was negative at high latitudes in both hemispheres and was near zero at low latitudes. Article in Journal/Newspaper Arctic kola peninsula Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Kola Peninsula Murmansk Norway Apatity ENVELOPE(33.403,33.403,67.564,67.564) Aldra ENVELOPE(13.100,13.100,66.400,66.400) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Roldugin, V. C. Beloglazov, M. I. Remenets, G. F. Total ozone decrease in the Arctic after REP events |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Eight periods of relativistic electron precipitation (REP) with electron energies of more than 300 keV are identified from VLF data (10-14 kHz) monitored along the Aldra (Norway) - Apatity (Kola peninsula) radio trace. In these cases, anomalous ionization below 55-50 km occurred without disturbing the higher layers of the ionosphere. The daily total ozone values in Murmansk for six days before and six days after the REP events are compared. In seven of eight events a decrease in the total ozone of about 20 DU is observed. In one event of 25 March, 1986, the mean total ozone value for six days before the REP is bigger than that for six days after, but this a case of an extremely high ozone increase (144 DU during the six days). However, on days 3 and 4 there was a minimum of about 47 DU with regard to REP days, so this case also confirms the concept of the ozone decrease after REP. The difference between mean ozone values for periods six days before and six days after the REPs was found also for 23 points in Arctic on TOMS data. The difference was negative only in Murmansk longitudinal sector. Along the meridian of the trace it was negative at high latitudes in both hemispheres and was near zero at low latitudes. |
author2 |
Polar Geophysical Institute of Russian Academy of Sciences (PGI) Russian Academy of Sciences Moscow (RAS) Institute of Radiophysics |
format |
Article in Journal/Newspaper |
author |
Roldugin, V. C. Beloglazov, M. I. Remenets, G. F. |
author_facet |
Roldugin, V. C. Beloglazov, M. I. Remenets, G. F. |
author_sort |
Roldugin, V. C. |
title |
Total ozone decrease in the Arctic after REP events |
title_short |
Total ozone decrease in the Arctic after REP events |
title_full |
Total ozone decrease in the Arctic after REP events |
title_fullStr |
Total ozone decrease in the Arctic after REP events |
title_full_unstemmed |
Total ozone decrease in the Arctic after REP events |
title_sort |
total ozone decrease in the arctic after rep events |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://hal.science/hal-00316599 https://hal.science/hal-00316599/document https://hal.science/hal-00316599/file/angeo-18-332-2000.pdf |
long_lat |
ENVELOPE(33.403,33.403,67.564,67.564) ENVELOPE(13.100,13.100,66.400,66.400) |
geographic |
Arctic Kola Peninsula Murmansk Norway Apatity Aldra |
geographic_facet |
Arctic Kola Peninsula Murmansk Norway Apatity Aldra |
genre |
Arctic kola peninsula |
genre_facet |
Arctic kola peninsula |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316599 Annales Geophysicae, 2000, 18 (3), pp.332-336 |
op_relation |
hal-00316599 https://hal.science/hal-00316599 https://hal.science/hal-00316599/document https://hal.science/hal-00316599/file/angeo-18-332-2000.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782331041789247488 |