Mass changes detected from GRACE data in Argentina

AYELEN PEREIRA; MARÍA CRISTINA PACINO; RENE FORSBERG

Perugia

Otro; XXIV Asamblea General IUGG (International Union of Geodesy and Geophysics) Earth, our changing planet; 2007

IUGG (International Union of Geodesy and Geophysics)

Recent satellite gravity missions, specially GRACE, provide monthly gravity field models that reflect the Earth´s gravity field variations due to mass transport processes in the oceans and atmosphere as well as continental water storage variations. GRACE can map water storage changes to a height of about 1 centimeter for areas ranging in size on the order of 600 kilometers. The aim of this work is to show the temporal gravity variation of the gravity field detected over the continental territory of Argentina. Tendency as well as Amplitude maps of these variations show important features in two zones. One of them, located at the Patagonia, at glacial regions, and the other one in correspondence with the Paraná basin, one of the biggest rivers in the world.