EMU: Acqusition of Sediment Profile Imaging for seafloor visualization

• Grant number: 23/15564-9
• Support Opportunities: Research Infrastructure Program - Small Medium Sized
• Start date: September 01, 2024
• End date: August 31, 2027
• Field of knowledge: Physical Sciences and Mathematics - Oceanography - Geological Oceanography
• Principal Investigator: Michel Michaelovitch de Mahiques
• Grantee: Michel Michaelovitch de Mahiques
• Host Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: June Ferraz Dias

Abstract

The REMOTS Digital SPI can be utilized to measure awide variety of features, including:· Grain size· Small-scale surface boundary roughness· Dredged material thickness· Apparent redox potential discontinuity depth (aRPD)· Subsurface methane gas pockets· Surface microbial aggregations· Infaunal successional stageIt has been used to detect changes in the benthos related to sewage orthermal plume discharge, and mapped habitat and sediment quality aswell as anaerobic regions of the sea floor.The combination of side-scan sonar and the SedimentProfiling Camera has proven effective as a rapid reconnaissancesurveying technique when a client requires detailed information aboutlarge-scale topographic features. (AU)