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Title: Mapping the Energy Cascade in the North Atlantic Ocean: The Coarse-graining Approach

A coarse-graining framework is implemented to analyze nonlinear processes, measure energy transfer rates and map out the energy pathways from simulated global ocean data. Traditional tools to measure the energy cascade from turbulence theory, such as spectral flux or spectral transfer rely on the assumption of statistical homogeneity, or at least a large separation between the scales of motion and the scales of statistical inhomogeneity. The coarse-graining framework allows for probing the fully nonlinear dynamics simultaneously in scale and in space, and is not restricted by those assumptions. This study describes how the framework can be applied to ocean flows.
Authors:
 [1] ; ORCiD logo [2] ;  [3]
  1. Univ. of Rochester, Rochester, NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Exeter Univ. (United Kingdom)
Publication Date:
Report Number(s):
LA-UR-17-24117
Journal ID: ISSN 0022-3670
Grant/Contract Number:
AC52-06NA25396; SC0014318; NA0001944; 20150568ER; HiLAT project
Type:
Published Article
Journal Name:
Journal of Physical Oceanography
Additional Journal Information:
Journal Volume: 48; Journal Issue: 2; Journal ID: ISSN 0022-3670
Publisher:
American Meteorological Society
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; Earth Sciences
OSTI Identifier:
1418186
Alternate Identifier(s):
OSTI ID: 1411355