Going electric: Incorporating marine electromagnetism into ocean assimilation models

Having a clear multi-dimensional picture of Earth's oceans is crucial for understanding ocean processes and how they are evolving with climate change. Ocean knowledge is currently limited by relying on in situ data. A possible source of remote data is using the electromagnetic fields produced by the ocean and detected by geomagnetic satellites. Marine electromagnetic signals largely depend on three factors: oceanic transport, the local main magnetic field, and the electrical conductivity produced by the local salinity and temperature. Thus, how can marine electromagnetic signals be utilized to enhance the multi-dimensional picture of Earth's ocean circulation and state?