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Aplicações de dados do satélite GOCE nas Ciências da Terra Sólida

O Departamento de Geofísica do IAG/USP promove nesta quinta-feira, 1º/03, às 16h30, o seminário: "Discussion of the GOCE improved gravity field and the possible applications in solid Earth Science with examples from Brazil, Argentina and North Africa", ministrado pela Profa. Carla Braitenberg (Dipartimento di Matematica e Geoscienze - Universitate di Trieste, Itália).

O evento é aberto  e voltado para pesquisadores e estudantes de Geofísica, Geologia, Física, Oceanografia e Engenharia. No há inscrição prévia.

Local: Auditório 2 do IAG/USP (Rua do Matão, 1226 - Cidade Universitária - São Paulo - SP)

Informações: (11) 3091.4760

Resumo:

This work is focused on the Solid Earth Science exploitation of the satellite mission GOCE. The gravity satellite missions GRACE and GOCE have boosted the resolution of the global Earth gravity models (EGM), opening new possibilities of investigation. I will discuss the present products of the mission and the possibilities to exploit them in Solid Earth studies and Exploration. One application concerns EGM models based on pure satellite or mixed satellite-terrestrial observations.

Satellite-only models are truly global, whereas satellite-terrestrial models have inhomogeneous quality, depending on availability and accuracy of the terrestrial data set. I show that GOCE can be used to make a quality assessment of the higher-resolution fields and flag ?bad areas?, leaving the ?good areas? for reliable geophysical modeling and investigation. I will show examples of gravity and gravity gradients of EGM08 and GOCE over Brazil, Argentina and North-Central and quantify the resolution in terms of density variations associated to geologic lineaments, crustal thickness variations, rifts and magmatic under-plating. In Brazil the focus is set on the Paraná basin.

IAG/USP - 28/02/2012
CGG Rodapé
CPGEO