New global marine gravity model from CryoSat-2 and Jason-1

• Other Authors: Dietmar Muller (hasCollector)
• Format: Dataset
• Language: unknown
• Published: The University of Sydney
• Subjects: gravity; Gulf of Mexico; South Atlantic; mid-ocean ridges; propagating rifts; seamounts; ocean basins; Pacific Ocean; Indian Ocean; Atlantic Ocean; fracture zones; vertical gravity gradient; subduction zones; geoid; abyssal hills; plate tectonics; mapping; seafloor; seafloor fabric; satellites; radar altimetry; gravity anomalies; gravity model; bathymetry; CryoSat-2; Jason-1; Marine Geoscience; EARTH SCIENCES; GEOLOGY; Astronomical and Space Instrumentation; PHYSICAL SCIENCES; ASTRONOMICAL AND SPACE SCIENCES; Tectonics; Basin Analysis; Structural Geology; Expanding Knowledge in the Earth Sciences; EXPANDING KNOWLEDGE; Pure basic research; Indian; Pacific; Scripps; South Atlantic Ocean
• Online Access: https://doi.org/10.4227/11/5587A862A9726; https://researchdata.ands.org.au/new-global-marine-jason-1/616566; http://www.sciencemag.org/content/346/6205/65.short; http://earthbyte.org/Resources/resources_global_marine_gravity2014.html

This data collection is associated with the publication: Sandwell, D. T., Müller, R. D., Smith, W. H., Garcia, E., & Francis, R. (2014). New global marine gravity model from CryoSat-2 and Jason-1 reveals buried tectonic structure. Science, 346(6205), 65-67. doi:10.1126/science.1258213 Publication Abstract Gravity models are powerful tools for mapping tectonic structures, especially in the deep ocean basins where the topography remains unmapped by ships or is buried by thick sediment. We combined new radar altimeter measurements from satellites CryoSat-2 and Jason-1 with existing data to construct a global marine gravity model that is two times more accurate than previous models. We found an extinct spreading ridge in the Gulf of Mexico, a major propagating rift in the South Atlantic Ocean, abyssal hill fabric on slow-spreading ridges, and thousands of previously uncharted seamounts. These discoveries allow us to understand regional tectonic processes and highlight the importance of satellite-derived gravity models as one of the primary tools for the investigation of remote ocean basins. Authors and Institutions David T. Sandwell - Scripps Institution of Oceanography, USA R. Dietmar Müller - EarthByte Research Group, School of Geosciences, The University of Sydney, Australia. ORCID: 0000-0002-3334-5764 Walter H. F. Smith - Laboratory for Satellite Altimetry, National Oceanic and Atmospheric Administration, USA Emmanuel Garcia - Scripps Institution of Oceanography, USA Richard Francis - European Space Agency/European Space Research and Technology Centre, Netherlands Overview of Resources Contained This collection contains gridded satellite-derived gravity, vertical gravity gradient, and gravity error data. These data are available as grids and KML overlays for Google Earth. The grids can also be visualised interactively online using the GPlates web portal.