Sub-bottom profilers extend hydrographic surveys beneath the seafloor. These systems emit low-frequency signals capable of penetrating sediment layers, revealing subsurface structures such as buried ...

Hydrographic maps reveal subsurface features with the potential to hold fish, though the degree to which they do depends largely on the accuracy and detail of the map. While paper maps are still ...

A new bill which will pave the way for Sri Lanka to earn at least Rs.1 billion a year from the sale of hydrographic maps to ships entering Sri Lankan waters is to be presented to Parliament next month ...

Map showing the hydrographic basin boundaries and predicted average population density with arsenic ≥5 μg/L in (a) the entire western Great Basin; (b) Truckee Meadows (Reno area), Lemmon Valley, and ...