2232439
Project Grant
Overview
Grant Description
Collaborative Research: The Internal Wave Spectrum and Boundary Mixing in the Sub-Tropical South Atlantic
The research will examine the capability of global scale ocean circulation models (OCMs) to represent internal gravity waves, their dynamics, and mixing. It aims to characterize the oceanic internal wavefield at regional scales through a targeted field campaign and numerical investigations. The project will obtain new observations through a field campaign and targeted numerical simulations, leveraging existing data.
This project is jointly funded by NSF and the Office of Naval Research (ONR) through the National Oceanographic Partnership Program (NOPP). A moored array will be deployed in the Brazil Basin to quantify near boundary flow distortions due to finite amplitude topography, near boundary internal wave breaking, and momentum and buoyancy fluxes in both turbulent and internal wavebands.
Extant data obtained as part of a tracer release experiment in the same domain and data from the Global Drifter Program will be used to create a regional statistical characterization of the oceanic internal wavefield in the sub-tropical South Atlantic. This characterization will be compared to a hierarchy of five models: an operational forecast model (HYCOM), O(1-3) km horizontal resolution ROMS-CROCO, a nonhydrostatic ROMS-CROCO "mountain scale" simulations with 50 m resolution, a realistic large eddy simulations (LES), and a quasi-analytic spectral representation of the internal wave energy spectrum.
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the foundation's intellectual merit and broader impacts review criteria.
The research will examine the capability of global scale ocean circulation models (OCMs) to represent internal gravity waves, their dynamics, and mixing. It aims to characterize the oceanic internal wavefield at regional scales through a targeted field campaign and numerical investigations. The project will obtain new observations through a field campaign and targeted numerical simulations, leveraging existing data.
This project is jointly funded by NSF and the Office of Naval Research (ONR) through the National Oceanographic Partnership Program (NOPP). A moored array will be deployed in the Brazil Basin to quantify near boundary flow distortions due to finite amplitude topography, near boundary internal wave breaking, and momentum and buoyancy fluxes in both turbulent and internal wavebands.
Extant data obtained as part of a tracer release experiment in the same domain and data from the Global Drifter Program will be used to create a regional statistical characterization of the oceanic internal wavefield in the sub-tropical South Atlantic. This characterization will be compared to a hierarchy of five models: an operational forecast model (HYCOM), O(1-3) km horizontal resolution ROMS-CROCO, a nonhydrostatic ROMS-CROCO "mountain scale" simulations with 50 m resolution, a realistic large eddy simulations (LES), and a quasi-analytic spectral representation of the internal wave energy spectrum.
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the foundation's intellectual merit and broader impacts review criteria.
Funding Goals
THE GOAL OF THIS PROGRAM IS TO SUPPORT RESEARCH PROPOSALS SPECIFIC TO "PHYSICAL OCEANOGRAPHY
Grant Program (CFDA)
Awarding / Funding Agency
Place of Performance
Woods Hole,
Massachusetts
02543-1536
United States
Geographic Scope
Single Zip Code
Related Opportunity
Analysis Notes
Amendment Since initial award the total obligations have increased 13% from $3,146,190 to $3,553,342.
Woods Hole Oceanographic Institution was awarded
Collab. Research: Internal Wave Spectrum & Boundary Mixing in Sub-Tropical South Atlantic
Project Grant 2232439
worth $3,553,342
from the Division of Ocean Sciences in August 2022 with work to be completed primarily in Woods Hole Massachusetts United States.
The grant
has a duration of 3 years and
was awarded through assistance program 47.050 Geosciences.
The Project Grant was awarded through grant opportunity Physical Oceanography.
Status
(Complete)
Last Modified 2/20/25
Period of Performance
8/1/22
Start Date
7/31/25
End Date
Funding Split
$3.6M
Federal Obligation
$0.0
Non-Federal Obligation
$3.6M
Total Obligated
Activity Timeline
Transaction History
Modifications to 2232439
Additional Detail
Award ID FAIN
2232439
SAI Number
None
Award ID URI
SAI EXEMPT
Awardee Classifications
For-Profit Organization (Other Than Small Business)
Awarding Office
490604 DIVISION OF OCEAN SCIENCES
Funding Office
490604 DIVISION OF OCEAN SCIENCES
Awardee UEI
GFKFBWG2TV98
Awardee CAGE
88846
Performance District
MA-09
Senators
Edward Markey
Elizabeth Warren
Elizabeth Warren
Budget Funding
| Federal Account | Budget Subfunction | Object Class | Total | Percentage |
|---|---|---|---|---|
| Research and Related Activities, National Science Foundation (049-0100) | General science and basic research | Grants, subsidies, and contributions (41.0) | $3,146,190 | 100% |
Modified: 2/20/25