| Texto completo | |
| Autor(es): |
Alves, D. B. M.
;
Jerez, G. O.
;
Nespolo, R. S.
;
Hernandez-Pajares, M.
;
Monico, J. F. G.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 39TH INTERNATIONAL SYMPOSIUM ON REMOTE SENSING OF ENVIRONMENT ISRSE-39 FROM HUMAN NEEDS TO SDGS, VOL. 48-M-1; v. N/A, p. 6-pg., 2023-01-01. |
| Resumo | |
Ionosphere is an important layer of Earth's atmosphere which can interfere in the transmission of radio signals, affecting several activities, such as the ones related to global navigation satellite systems (GNSS) positioning. In this intend, many efforts have been made in the last decades in order to better understand and model this region of atmosphere. The observation of ionosphere and its irregularities can be performed by several techniques, including classic methods such as ionosondes. Besides that, the use of GNSS signals as source of atmospheric observations have allowed the development of different methodologies and techniques to obtain ionospheric information. Among those, the use of data collected by receivers embedded in low earth orbiting (LEO) satellites, such as the ones used in radio occultation (RO) missions can be relevant due to the amount and distribution of the data obtained. Besides that, GNSS receivers has also been used in ground stations networks to continuously monitor the ionosphere. In this sense, the present work aims to compare irregularities observed by two different techniques using data from ground-based (GNSS monitoring stations) and satellite-embedded (RO mission) receivers. The study is performed over one of the most challenging scenarios, the Brazilian region, considering seasonal variability in two months (low and high solar flux) from 2014 (solar cycle peak). The results obtained show agreement in the general behavior of the ionospheric irregularities observed by the two different techniques. (AU) | |
| Processo FAPESP: | 21/05285-0 - Novas estratégias de recuperação de perfis provenientes de rádio ocultação GNSS considerando a atmosfera brasileira |
| Beneficiário: | Gabriel Oliveira Jerez |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 17/50115-0 - INCT 2014: tecnologia GNSS no suporte à navegação aérea |
| Beneficiário: | Joao Francisco Galera Monico |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisa em Políticas Públicas |
| Processo FAPESP: | 20/09443-6 - Visualização e análise de perfis provenientes de rádio ocultação GNSS |
| Beneficiário: | Raphael Silva Nespolo |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |