time-varying gravity models from grace data over nw australia
DESCRIPTION
Time-Varying Gravity Models from GRACE Data over NW Australia. Lily Yu, IIP/PEI Summer 2010 Research School for the Earth Sciences, ANU. Image: NASA/JPL. Background. The geoid Observing ice melt and droughts The GRACE satellites - PowerPoint PPT PresentationTRANSCRIPT
Time-Varying Gravity Models from GRACE Data
over NW Australia
Lily Yu, IIP/PEI Summer 2010Research School for the Earth Sciences,
ANU Image: NASA/JPL
Background• The geoid
• Observing ice melt and droughts
• The GRACE satellites
• The researchers: NASA/JPL, CSR at University of Texas, CNES/GRGS, GeoForschungsZentrum Potsdam (GFZ)
Error
The ProblemGravity field change, 2002-2008Gravity field change, 2008-2010
The Problem Gravity field change, 2002-2010
Murray-Darling Basin drought, 2001-present
?
The Problem with the Problem
River Monitoring Stations
Rainfall Monitoring Stations
Ground-based gravity surveys by WA Mining and Petroleum
GRGS ECMWF-based Dealiasing Products
GLDAS Hydrological Model
Further Inquiries
• Biomass (NVIS)
• National Water Commission’s future mapping projects
• Seismological data
Acknowledgements
• Paul Tregoning, supervisorRSES, ANU
• Emma-Kate PotterRSES, ANU
• Tony PurcellRSES, ANU
• Charlotte AllenRSES, ANU
• IIP/PEI