RT journal article
T1 Tropospheric and Ionospheric Modeling Using GNSS Time Series in Volcanic Eruptions (La Palma, 2021) †
A1 Barba, Paola
A1 Ramírez Zelaya, Javier Antonio
A1 Jiménez, Vanessa
A1 Rosado Moscoso, Belén
A1 Jaramillo, Elena
A1 Moreno, Mario
A1 Berrocoso Domínguez, Manuel
A2 Matemáticas
K1 troposphere
K1 ionosphere
K1 ZTD
K1 TEC
K1 GNSS system
K1 volcanic eruption
K1 La Palma Island
AB The signal coming from the artificial satellites of the GNSS system suffers various effects that considerably decrease the precision in solving the positioning problem. To mathematically model these effects, the atmosphere is divided into two main parts, the troposphere and the ionosphere. The troposphere can only be modelled, while the ionospheric effect can be modeled or eliminated depending on the geodetic sophistication of the receivers used. In this way, information is obtained about both layers of the atmosphere. For tropospheric modeling, the parameters of total zenithal delay (ZTD) or precipitable water vapor (PVW) will be taken, and for the ionosphere the total electron content (TEC) will be taken. In this work, statistical and analytical techniques will be applied with the R software; for example, ARMA, ARIMA models, least squares methods, wavelet functions, Kalman techniques, and CATS analysis. With this, the anomalies that occurred in the values of the ZTD and TEC in the case of the 2021 eruption of the Cumbre Vieja volcano on the island of La Palma.
PB Multidisciplinary Digital Publishing Institute (MDPI)
SN 2673-4591
YR 2023
FD 2023
LK http://hdl.handle.net/10498/31728
UL http://hdl.handle.net/10498/31728
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026