Marlim R3D (MR3D) - The full azimuth CSEM dataset

<p>Marlim R3D (MR3D) is an open-source realistic geoelectric model for CSEM simulations of the post-salt turbiditic reservoirs at the Brazilian offshore margin.<br> Here we make available the complete CSEM dataset, with inline and broadside geometries, of two simulated surveys on the MR3D model. We computed the six electromagnetic field components (Ex, Ey, Ez, Hx, Hy, and Hz) at six frequencies in the 0.125&ndash;1.25 Hz range.<br> The full azimuth CSEM data were simulated for a total of 500 receivers located on the irregular seafloor of the MR3D model. For each receiver, sources were situated along 45 tow lines having a spacing of 1000 m. Towlines were positioned along 25<br> EW lines and 20 NS lines for each receiver. Figure~\ref{fig:mapa} shows the receiver positions and towlines superimposed on the bathymetry of the MR3D model.<br> Each EW towline has a length of 42 km, and each NS towline has a length of 47 km. Both directions are extending 11 km away from the first and last receivers at each towline. Sources positions were spaced at 100 m along each towline for a total of 201 source positions along each towline. The source is a 275 m long horizontal electrical dipole (HED), oriented parallel to the towline.<br> The output dataset was generated in the current industry netCDF-based data format.<br> You can follow the updates of the marlim project at:<br> https://www.researchgate.net/project/Marlim-R3D-A-realistic-model-for-mCSEM-simulations</p>