Analysis of a general circulation model. 2. Distribution of kinetic energy in the South Atlantic and Kuroshio/Oyashio systems

Z. Garraffo, S. L. Garzoli, W. Haxby, Donald Olson

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The energy of the model transient eddies at 37.5 m is compared with Geosat altimeter observations, for these systems. The model shows areas of transient motions overlapping the ones obtained from Geosat altimeter data. For the South Atlantic Ocean, the modeled eddy kinetic energy is smaller than the one observed with Geosat, by a factor of three for area average on the whole South Atlantic region, and by a factor of four for its western boundary. For the Kuroshio region, the energy level of the modeled transient motions is comparable with Geosat observations, but the model eddy activity is more concentrated in the Kuroshio Current and not in the Kuroshio extension. The observations show the opposite. For the South Atlantic Ocean, a comparison is also done between model eddy kinetic energy with values obtained from surface drifters. The analysis shows differences in the western boundary, and good agreement across the South Atlantic Ocean between 35°S and 45°S. -from Authors

Original languageEnglish (US)
JournalJournal of Geophysical Research
Volume97
Issue numberC12
StatePublished - Jan 1 1992
Externally publishedYes

Fingerprint

Geosat
General Circulation Models
Kinetic energy
kinetic energy
Atlantic Ocean
general circulation model
eddy
vortices
kinetics
altimeters
Aneroid altimeters
energy
altimeter
drifter
Electron energy levels
energy levels
distribution
analysis
South Atlantic Ocean

ASJC Scopus subject areas

  • Geophysics
  • Oceanography
  • Forestry
  • Aquatic Science
  • Ecology
  • Condensed Matter Physics
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Materials Chemistry
  • Palaeontology

Cite this

Analysis of a general circulation model. 2. Distribution of kinetic energy in the South Atlantic and Kuroshio/Oyashio systems. / Garraffo, Z.; Garzoli, S. L.; Haxby, W.; Olson, Donald.

In: Journal of Geophysical Research, Vol. 97, No. C12, 01.01.1992.

Research output: Contribution to journalArticle

@article{5632efdd6201425b91f027febc96c052,
title = "Analysis of a general circulation model. 2. Distribution of kinetic energy in the South Atlantic and Kuroshio/Oyashio systems",
abstract = "The energy of the model transient eddies at 37.5 m is compared with Geosat altimeter observations, for these systems. The model shows areas of transient motions overlapping the ones obtained from Geosat altimeter data. For the South Atlantic Ocean, the modeled eddy kinetic energy is smaller than the one observed with Geosat, by a factor of three for area average on the whole South Atlantic region, and by a factor of four for its western boundary. For the Kuroshio region, the energy level of the modeled transient motions is comparable with Geosat observations, but the model eddy activity is more concentrated in the Kuroshio Current and not in the Kuroshio extension. The observations show the opposite. For the South Atlantic Ocean, a comparison is also done between model eddy kinetic energy with values obtained from surface drifters. The analysis shows differences in the western boundary, and good agreement across the South Atlantic Ocean between 35°S and 45°S. -from Authors",
author = "Z. Garraffo and Garzoli, {S. L.} and W. Haxby and Donald Olson",
year = "1992",
month = "1",
day = "1",
language = "English (US)",
volume = "97",
journal = "Journal of Geophysical Research: Oceans",
issn = "2169-9275",
publisher = "Wiley-Blackwell",
number = "C12",

}

TY - JOUR

T1 - Analysis of a general circulation model. 2. Distribution of kinetic energy in the South Atlantic and Kuroshio/Oyashio systems

AU - Garraffo, Z.

AU - Garzoli, S. L.

AU - Haxby, W.

AU - Olson, Donald

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The energy of the model transient eddies at 37.5 m is compared with Geosat altimeter observations, for these systems. The model shows areas of transient motions overlapping the ones obtained from Geosat altimeter data. For the South Atlantic Ocean, the modeled eddy kinetic energy is smaller than the one observed with Geosat, by a factor of three for area average on the whole South Atlantic region, and by a factor of four for its western boundary. For the Kuroshio region, the energy level of the modeled transient motions is comparable with Geosat observations, but the model eddy activity is more concentrated in the Kuroshio Current and not in the Kuroshio extension. The observations show the opposite. For the South Atlantic Ocean, a comparison is also done between model eddy kinetic energy with values obtained from surface drifters. The analysis shows differences in the western boundary, and good agreement across the South Atlantic Ocean between 35°S and 45°S. -from Authors

AB - The energy of the model transient eddies at 37.5 m is compared with Geosat altimeter observations, for these systems. The model shows areas of transient motions overlapping the ones obtained from Geosat altimeter data. For the South Atlantic Ocean, the modeled eddy kinetic energy is smaller than the one observed with Geosat, by a factor of three for area average on the whole South Atlantic region, and by a factor of four for its western boundary. For the Kuroshio region, the energy level of the modeled transient motions is comparable with Geosat observations, but the model eddy activity is more concentrated in the Kuroshio Current and not in the Kuroshio extension. The observations show the opposite. For the South Atlantic Ocean, a comparison is also done between model eddy kinetic energy with values obtained from surface drifters. The analysis shows differences in the western boundary, and good agreement across the South Atlantic Ocean between 35°S and 45°S. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0027046529&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027046529&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0027046529

VL - 97

JO - Journal of Geophysical Research: Oceans

JF - Journal of Geophysical Research: Oceans

SN - 2169-9275

IS - C12

ER -