Stereotomography for Nodes Data

Stereotomography, as a slope tomography method, requires the knowledge of the slopes in both common source and common receiver panels to constrain the velocity model. In case of nodes data, where individual receivers are set down to the sea floor, the acquisition is usually very sparse and does not allow to obtain the slope at receiver with enough accuracy. However, using the reciprocity of Green's functions, it is possible to bypass this difficulty. Indeed, after a redatuming of the data and considering sources as receivers, we can obtain a dense enough acquisition. The question which arises is whether or not this sparse acquisition is enough to estimate the velocity model. I show here good results on a synthetic example.