The Naval Research Laboratory’s Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS)

Hodur, Richard M.

doi:10.1175/1520-0493(1997)125<1414:tnrlsc>2.0.co;2

Cited by 826 publications

(514 citation statements)

References 39 publications

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“…Wind and wave propagation directions are represented as "flow" directions (e.g., N means propagating northward). Surface wind is numerically simulated using COAMPS [Hodur, 1997], Naval Research Laboratory, Stennis Space Center, Mississippi. [22] Here, fluid muds are identified in PC-ADP observations as the mobile layer between the topmost maximum backscatter surface and the zero mean flow surface.…”

Section: Observationsmentioning

confidence: 99%

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Wave-mud interaction over the muddy Atchafalaya subaqueous clinoform, Louisiana, United States: Wave processes

Sheremet

Jaramillo

et al. 2011

J. Geophys. Res.

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[1] Observations of wave and sediment processes collected at two locations on the Atchafalaya inner shelf show that wave dissipation in shallow, muddy environments is strongly coupled to bed-sediment reworking by waves. During an energetic wave event (2 m significant wave height in 5 m water depth), acoustic backscatter records suggest that sediment in the surficial bed layer evolves from consolidated mud through liquefaction, fluid mud formation, and hindered settling to gelled, under-consolidated mud. Net swell dissipation increases steadily during the storm from negligible prestorm values, consistent with bed softening, but shows no correlation with detectable fluid mud layers. Remarkably, the maximum dissipation rate occurs poststorm, when no fluid mud layers are present. In the waning stage of the storm, the contribution of different wave-forcing processes to wave dissipation is analyzed using an inverse modeling approach based on a nonlinear three-wave interaction model. Although wave-mud interaction dominates dissipative processes, nonlinear three-wave interactions control the shape of the frequency distribution of the dissipation rate. In the wake of the storm, the viscosity values predicted by the inverse modeling converge toward measured values characteristic for gelled mud in a trend that is consistent with a fluid mud entering dewatering and consolidation stages.

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Section: Observationsmentioning

confidence: 99%

“…Tide elevations and surface currents were derived from observations (1 h averages, assumed spatially constant over the integration domain). Surface winds were produced by the COAMPS (Coupled Ocean/Atmosphere Mesoscale Prediction System) model [Hodur, 1997], run at the Naval Research Laboratory, Stennis Space Center.…”

Section: Inverse Modeling Of Bottom Mud Statementioning

confidence: 99%

Wave-mud interaction over the muddy Atchafalaya subaqueous clinoform, Louisiana, United States: Wave processes

Sheremet

Jaramillo

et al. 2011

J. Geophys. Res.

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“…Atmospheric forcing was obtained from the Coupled Ocean/Atmosphere Meso-scale Prediction System (COAMPS) (Hodur, 1997). The COAMPS setup for the Adriatic consists of a triply nested grid with resolutions of 36, 12, and 4 km (Pullen et al, 2003).…”

Section: Coastal Model and Configurationmentioning

confidence: 99%

Relative dispersion from a high-resolution coastal model of the Adriatic Sea

et al. 2008

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“…We utilized the atmospheric component of the non-hydrostatic, fully compressible mesoscale model COAMPS  (Coupled Ocean Atmosphere Mesoscale Prediction System: Hodur, 1997). The simulation was performed on the three nested domains (Figure 2) with horizontal resolutions of 9, 3 and 1 km, with 51 × 51, 61 × 61 and 91 × 91 grid points, respectively, and an additional 333 m domain with 91 × 91 grid points (see section 6).…”

Section: Numerical Modelmentioning

confidence: 99%

Numerical simulation of pulsations in the bora wind

Belušić

Žagar

Grisogono

2007

Quart J Royal Meteoro Soc

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Numerical simulation of a long bora episode is presented and compared with measurements. The goal is to resolve the quasi-periodic oscillations of the bora gusts, i.e. the pulsations. The model reproduced well the approximately 7 min periodicity of pulsations and the upstream structure of the atmosphere, and can thus be used for the detailed dynamical considerations.The results of previous studies are confirmed, as well as the hypotheses on the mechanisms responsible for the disappearance of pulsations. Specifically, it is shown that the upper-tropospheric jet induces strong positive shear throughout the troposphere and consequently the local nonlinearity of the incoming flow weakens. Henceforth, the low-level wave breaking is diminished and so the pulsations cease. From the three previously proposed generating mechanisms of pulsations, the results obtained point to the Kelvin-Helmholtz instability as the primary mechanism in this case.Additionally, it seems that the situations with absence of pulsations may be related to the formation of the mountainwave-induced rotor.

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The Naval Research Laboratory’s Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS)

Cited by 826 publications

References 39 publications

Wave-mud interaction over the muddy Atchafalaya subaqueous clinoform, Louisiana, United States: Wave processes

Wave-mud interaction over the muddy Atchafalaya subaqueous clinoform, Louisiana, United States: Wave processes

Relative dispersion from a high-resolution coastal model of the Adriatic Sea

Numerical simulation of pulsations in the bora wind

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