Earth2014 (60 arc-sec), 2014

Earth2014 is a freely-available suite of global topography, bathymetry and ice-sheet grids developed at Curtin University (Perth) and TU Munich (Hirt and Rexer 2015). The Earth2014 products, constructed based on newest topography data sets that were available in 2014, have been released in 2015. The Earth2014 grids offer topography data with global coverage at 1 arc-minute (about 1.8 km) spatial resolution and may be suitable for applications such as global gravity modelling, particularly forward modelling, geo-visualisation and geophysical studies. The topography layers (e.g., bedrock, surface topography, ice) are the primary product. A number of derived or auxiliary products are available such as (1) Earth shape models (surface heights w.r.t geocenter), (2) spherical harmonic series expansions of the gridded data with ultra-high resolution (harmonic degree 10800), (3) data set masks and (4) down-sampled grids of coarser resolution (5 arc-min). Download and citation: All Earth2014 data sets can be obtained via the repository http://ddfe.curtin.edu.au/models/Earth2014 Please consult the readme-file for details on the data products and the various data formats (binary, GMT-grid). http://ddfe.curtin.edu.au/models/Earth2014/readme_earth2014.dat The Earth2014 citation is: Hirt, C. and Rexer, M. (2015) Earth2014: 1 arc-min shape, topography, bedrock and ice-sheet models - available as gridded data and degree-10,800 spherical harmonics, International Journal of Applied Earth Observation and Geoinformation 39, 103-112, doi:10.1016/j.jag.2015.03.001. PDF