Modelling of atmospheric electricity phenomena in the atmospheres of Venus, Earth, Jupiter and Saturn
In this doctoral thesis we describe the development and results of several models to study electricity phenomena in the atmospheres of Venus, Earth, Jupiter and Saturn. In addition, in the context of the future launch of ASIM (ESA) in 2018 and TARANIS (CNES) in 2019, we present two methods to analyz...
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| Formato: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/161031 |
| Acesso em linha: | http://hdl.handle.net/10261/161031 |
| Access Level: | acceso abierto |
| Palavra-chave: | Planetary atmospheres Atmospheric models Transient luminous events (TLEs) |
| Resumo: | In this doctoral thesis we describe the development and results of several models to study electricity phenomena in the atmospheres of Venus, Earth, Jupiter and Saturn. In addition, in the context of the future launch of ASIM (ESA) in 2018 and TARANIS (CNES) in 2019, we present two methods to analyze the optical signals emitted by Transient Luminous Events (TLEs) from space-based photometers. We have developed two electrodynamical models to simulate the inception and evolution of halos and elves in planetary atmospheres. These models have been coupled with di erent sets of chemical reactions to describe TLEs in the upper atmospheres of Venus, Earth, Jupiter and Saturn. The terrestrial versions of these models have allowed us to quantify the local chemical impact of halos and elves in the atmosphere of the Earth. We have used these results together with the TLE occurrence rate reported by ISUAL (NSPO) to estimate the global impact of these events in the chemistry of the terrestrial mesosphere. We have also investigated the similarities and di erences between elves triggered by di erent types of lightning discharges, such as cloud-to-ground (CG) discharges, Compact Intracould Discharges (CIDs) and Energetic In-cloud Pulses (EIPs). Finally, the model of halos has been used to calculate the quasielectrostatic eld produced by this type of TLE at ground level. |
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