What do modern scientists use to map in absurd the deep ocean?

Modern scientists use a combination of advanced technologies to map the deep ocean, including multibeam sonar systems, autonomous underwater vehicles (AUVs), and remotely operated vehicles (ROVs). These tools allow for high-resolution mapping by emitting sound waves to measure the seafloor's topography and capturing detailed images of underwater features. Additionally, satellite altimetry helps assess the ocean's surface, providing data on underwater mountains and valleys. Collectively, these methods enable a more comprehensive understanding of the ocean's depths.