NOVA Environmental Sensor Suite (NESS) Upgrades, Deployments, and Model Validation
Abstract
ABSTRACT Approved for Public ReleaseNova Southeastern University (NSU)s Physical Oceanography Laboratory has been involved in coope,rative projects with the U.S. Navy in the Straits of Florida since 1998. The laboratory has conducted observational, computational,,and theoretical research in support of the Naval Surface Warfare Center Carderock Divisions South Florida Ocean Measurement Facilit,y (SFOMF). This research has led to a better understanding of the complex physical oceanographic environment at SFOMF including velo,city, temperature, salinity, density, pressure, conductivity, and electromagnetic fields produced by internal wave solitons. The the,oretical and computational work resulted the development of a prototype 3D computational fluid dynamics model (CFDM). CFDM 1, utiliz,ing data from the NOVA Environmental Sensor Suite (NESS) and the NOAA bottom topography for initialization and boundary conditions,,has demonstrated a capability of predicting the submesoscale ocean circulation in a strong western boundary current such as the Flor,ida Current.The goal of these multi-year Navy-NSU joint activities is to support the development of a model that will be useful for,cancelling the electromagnetic noises produced by natural oceanic processes in the U.S. Navy surveillance systems. In this new proje,ct, our specific scientific objectives are as follows:1.To upgrade the CFDM 1 to include an air layer and the free surface boundary,instead of a rigid lid. This is required to account for tides and improve internal wave modeling. Correspondingly, the upgraded vers,ion of the model (CFDM 2) will include a multiphase option.2.To incorporate the spatial pattern of conductivity utilizing the data f,rom the NESS temperature-conductivity-depth (CTD) moorings into the upgraded model, which will be useful for modeling and predicting, the electromagnetic signature of internal wave solitons and other oceanographic features.3.To utilizing the Scripps Vulcan data for, improving the model bottom boundary conditions. The Scripps Institution of Oceanography is planning to conduct measurements of seaf,loor conductivity at the Navy Electromagnetic Observatory (NEMO) with the Scripps Vulcan system.4.To test the upgraded CFDM with NES,S/NEMO data in two different seasons. Validation and verification of CFDM 2 will be done using the field data from the two NESS depl,oyments at NEMO conducted in this project in two different seasons with support from the NSWC-CD 2 contract and this proposed ONR pr,oject. The NESS including the acoustic Doppler current profiler (ADCP), conductivity-temperature-depth (CTD), bottom pressure, and b,ottom magnetometer moorings will serve as a stand-alone system for obtaining environmental data around the world. When verified and,tested, the upgraded CFDM and NESS can serve as a tool for predicting the ocean circulation and the magnetic signature of submesosca,le oceanographic processes including internal wave solitons.The project will train specialists in the field of naval research. The p,roject will include liaisons for coordination between NSU and Navy. In person or telephone meetings will be conducted for coordinati,ng the NSU and Navy activities every two weeks or more frequently as required.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 10, 2021
- Source ID
- N000142212008
Entities
People
- Alexander Soloviev
Organizations
- Nova Southeastern University
- Office of Naval Research
- United States Navy