Research Summaries

Back Acoustical Characterization of the Riverine Environment

Fiscal Year 2015
Division Graduate School of Engineering & Applied Science
Department Oceanography
Investigator(s) Reeder, Davis B.
Sponsor Office of Naval Research (Navy)
Summary The long-term goal of this work is to develop a new capability in understanding and monitoring the dynamics of the riverine environment based on the characterization of the acoustical environment through in situ field observations and modeling which are closely linked to environmental measurements. The specific objectives include: (1) Define and describe the acoustical characteristics of different riverine environments (e.g. braided (shallow, strong currents, gravelly bed), meandering (deep, weak currents, muddy bed)) using simple acoustic instrumentation, and correlate these acoustical characteristics to traditional riverine observational parameters (e.g. current profiles, geological descriptors); (2) Develop an acoustic propagation model to investigate the effect of the environment on the measured acoustic parameters, and validate the acoustic model with in situ field observations; (3) Through measurements and modeling, investigate the spectral, spatial and temporal scales of variability of these acoustical-environmental correlations and the impact on signal coherence as a function of time, frequency and range.
Keywords
Publications Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal