Volta

Potencialidade do Uso de Dados Geofísicos Aerolevantados para Aplicações Geodésicas

The new realization of the Brazilian Height Reference System (RVRB) in 2018, aiming at its modernization, incorporated gravimetric data on the geometric leveling lines. Thus, the vertical coordinates are geopotential numbers, part referred to Imbituba Vertical Datum (DVB-I), part referred to Santana Vertical Datum (DVB-S). Complementary to the modernization process It is also necessary to physically connect the two network segments and refer them to the International Height Reference System (IHRS). However, RVRB still has technical limitations such as: heterogeneous spatial distribution; existence of extensions making their integral adjustment unfeasible; and insufficient gravimetric observations associated with leveling lines. Due to the difficulty of access in the RVRB segment connection area, it is necessary to look for alternatives for measuring or …

Reference & gravity metrics

Secondary-market trade history

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