The LITHO1.0 Model

Thursday, 18 December 2014
Michael Pasyanos1, Guy Masters2, Gabi Laske3 and Zhitu Ma2, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)University of California San Diego, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States
We have developed LITHO1.0, a 1 degree model of the crust and uppermost mantle of the Earth which extends into the upper mantle to include the lithospheric lid and underlying asthenosphere. A description of the model and details of its construction were recently published in JGR (Pasyanos et al., 2014). The model is parameterized laterally by tessellated nodes and vertically as a series of geophysically identified layers, such as water, ice, sediments, crystalline crust, lithospheric lid, and asthenosphere. Model profiles are created by constructing an appropriate starting model and perturbing it to fit high-resolution surface wave dispersion maps (Love and Rayleigh, group and phase) over a wide frequency band (5-40 mHz). We will review the constructed model and compare it to a number of select studies at regional and global scales. We will also discuss avenues for future improvements if time and funding permit. The model and access tools are available to download at http://igppweb.ucsd.edu/~gabi/litho1.0.html.

Pasyanos, M.E., T.G. Masters, G. Laske, and Z. Ma (2014). LITHO1.0: An updated crust and lithospheric model of the earth, J. Geophys. Res., 119, doi:10.1002/2013JB010626.