A project was set up at the Observatório Nacional-ON to establish a gravity database open to the national and international communities. This is an ongoing project aiming at recording the raw fieldwork information, performing the conventional data reduction and the adjustment of the gravity intervals. An important by-product of this project was finished in May, 2001 with the adjustment of the Brazilian Fundamental Gravity Network to the absolute datum JILAG-3 and the establishment of the main parameters of the gravimetric database. Next, the observations of the LC&R G061 gravity meter collected between 1969-1975, nearly 1500 stations were processed and adjusted. This paper reports the adjustment mentioned and the present status of the project.
Gravimetric database; Fundamental Gravity Network of Brazil; Adjustment; JILAG-3; Absolute gravimetry
