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M. T. Pazianotto, M. A. Cortés-Giraldo, C. A. Federico, O. L. Gonçales, G. Hubert, J. M. Quesada, B. V. Carlson |
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Title |
Analysis of the angular distribution of cosmic-ray-induced particles in the atmosphere based on Monte Carlo simulations including the influence of the Earth's magnetic field |
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2018 |
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Astroparticle Physics |
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97 |
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106-117 |
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Angular distribution of the extensive air shower Flight altitude Monte Carlo method simulation South Atlantic Magnetic Anomaly |
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Abstract |
Several applications exist that calculate cosmic-ray-induced particle (CRIP) spectra as a function of the altitude in the atmosphere. In general, the Earth's magnetic field is only used to modulate the primary cosmic radiation that arrives at the top of the atmosphere, but it can also modulate low-energy charged particles at flight altitudes. The effects of the Earth's magnetic field on the angular distributions of CRIP transport in the atmosphere should be quantified, because it furnishes important data for the development of applications for aircrew radiation protection, onboard dosimetry and the simulation of irradiation of sensitive equipment and particle detector systems used at ground level, flight and atmospheric balloon altitudes. In this work we calculate the angular distribution of the cosmic-ray-induced particles (CRIP) for altitudes from ground level up to 80 km using an application based on Geant4 developed in previous works. In order to quantify the effects of the Earth's magnetic field (EMF) on the angular distribution of the CRIP, the calculations were carried out both including the EMF in the South Atlantic Magnetic region and omitting it. A part of these results were compared with analytical calculations of the ratio between the mean free path of the primary particles from the cosmic radiation and the deflection radii at different altitudes in the atmosphere. The albedos of neutrons and protons at 80 km were estimated and compared with the QARM and ATMORAD codes, which ignore the Earth's magnetic field. |
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0927-6505 |
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0927-6505 |
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7042 |
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Testut L., B. Legrésy, C. Watson, R. Coleman, H. Brolsma, R. Handsworth. |
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Title |
Sea level trends in the Commonwealth Bay over the last century from historical data |
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Communication |
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2018 |
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Workshop on sea-level measurements in hostile conditions, 13-15 march 2018, moscow. |
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688 |
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7046 |
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Testut L., P. Téchiné, M. Calzas, A. Guillot, C. Guillerm, C. Brachet, C. Drezen, L. Fichen, T. Donal. |
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The French tide gauges network in Southern Ocean and Antarctica – ROSAME – Conclusions and recommendations after 25 years of experience |
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2018 |
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Workshop on sea-level measurements in hostile conditions, 13-15 march 2018, moscow. |
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7047 |
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Author |
Guillot A. and A. Santamaria. |
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Mission Nivmer 18, mars-avril 2018 |
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2018 |
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7048 |
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Testut L., P. Téchiné. |
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Proposition de campagne à la mer – IFREMER-IPEV-IRD. Fiche “Valorisation des résultats des campagnes océanographiques en série”, 26 pages, 27 mars 2018 |
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2018 |
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688 |
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7049 |
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Author |
Guillot A. & T Donal |
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Mission Nivmer 19-ddu, janvier 2019 |
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2019 |
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688 |
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7050 |
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Author |
S. Jevrejeva, A. Matthews, A. Slangen |
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Title |
The Twentieth-Century Sea Level Budget: Recent Progress and Challenges |
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2017 |
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Surveys in Geophysics |
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38 |
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1 |
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295-307 |
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Data archeology Observing system Sea level budget Sea level rise |
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Abstract |
For coastal areas, given the large and growing concentration of population and economic activity, as well as the importance of coastal ecosystems, sea level rise is one of the most damaging aspects of the warming climate. Huge progress in quantifying the cause of sea level rise and closure of sea level budget for the period since the 1990s has been made mainly due to the development of the global observing system for sea level components and total sea levels. We suggest that a large spread (1.2 ± 0.2–1.9 ± 0.3 mm year−1) in estimates of sea level rise during the twentieth century from several reconstructions demonstrates the need for and importance of the rescue of historical observations from tide gauges, with a focus on the beginning of the twentieth century. Understanding the physical mechanisms contributing to sea level rise and controlling the variability of sea level over the past few 100 years are a challenging task. In this study, we provide an overview of the progress in understanding the cause of sea level rise during the twentieth century and highlight the main challenges facing the interdisciplinary sea level community in understanding the complex nature of sea level changes. |
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1573-0956 |
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1573-0956 |
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7051 |
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Author |
Téchiné P., B. Buisson, L. Testut, G. Alory, T. Delcroix. |
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ROSAME/SSS – Suivi de la qualité des mesures de réseaux d'observations océanographiques |
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2017 |
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Jdev 2017 : journées développement logiciel, 4-7 juillet 2017, marseille. |
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7052 |
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Testut L., P. Téchiné, M. Calzas, C. Brachet, A. Guillot, C. Guillerm, C. Drezen. |
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Title |
ROSAME : 20 ans de résultats scientifiques |
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2017 |
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Journées scientifiques du legos, 18-19 mai 2017, banyuls-sur-mer. |
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7053 |
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Calzas M. and C. Guillerm. |
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Campagne Nivmer 17-ddu, janvier-février 2017 |
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2017 |
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7054 |
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