Automated generation of time series of positional data using the IBGE-PPP

Researches that use time series are done in several fields of studies, like economy, geophysics, geodesy, etc. Specific data are associated to each field of study, making possible to do analyses over the series and evaluate the time influences of several factors that affect the data. Within the scope of spatial geodesy, many studies are developed, directly or indirectly, about time series of positional data (coordinates), allowing to explore the influence of: the ionosphere, the troposphere, the geodynamics, etc. However, the construction of a positioning time series shows some limitations, that make this process slow, and many times, impracticable. The goal of this paper is present the developed and implemented methodology in the RINEX EDITION software, to create positioning time series. As result, two positioning time series were created (Cartesian coordinates X, Y, Z; ellipsoidal coordinates φ, λ, h and their precisions), considering a period of time about five and a half years (5,5 years), for two RBMC stations, using the online IBGE-PPP service. Also a preliminary comparison between the time series e of ellipsoidal height and of the hydrologic data of the National Agency of Water (ANA) was done, presenting the influence of the hydrologic load in the ellipsoidal height

Keywords:
IBGE-PPP; Time Series; RINEX EDITION; Hydrologic Load.