Search Results

You are looking at 81 - 90 of 1,076 items for :

  • Waves, atmospheric x
  • Weather and Forecasting x
  • All content x
Clear All
Jayaram Veeramony, Andrew Condon, and Maarten van Ormondt

domains used in this study. (a) Track for Hurricane Ike (red line) with the wave buoy locations (filled triangle), the GoM domain (black box), NGoM domain (blue box), and the local domains (green boxes). (b)–(d) Local domains from (a) along with the NOS water-level stations (stars) and USGS deployments (filled triangles) used in this article and the water depth ranging from −20 m (underwater) to 10 m. The atmospheric input to the coupled FLOW–WAVE system is given by the total stress: of which the

Full access
Raymond H. Brady and Jeff S. Waldstreicher

gravity wave is equal to the mean flow ( Clark and Peltier 1984 ). In the case of a stationary mountain wave, the critical level would be the height at which the cross-barrier flow is zero ( Durran 1990 ). The 0900 UTC AVP model sounding showed the mean flow became southwesterly (and nearly parallel to the Wyoming Valley) around 700 mb (approximately 3000 m), or near the top of the conditionally unstable reflecting layer. In summary, atmospheric conditions were favorable for mountain wave development

Full access
Valdir Innocentini, Ernesto Caetano, and Jonas Takeo Carvalho

for Atlantic basin tropical cyclones using West African rainfall as a predictor ( Gray and Landsea 1992 ); and for tornado development wherein a set of observational and numerically simulated precursors is monitored ( Paice 1998 ). A similar situation is found for oceanic wave prediction near the coastline. Usually a coarse-grid global wave modeling system (CWS) simulates the generation and propagation of the wave spectra over deep water up to the 100-m isobath following the coast. However, for

Full access
D. Hudson, A. G. Marshall, and O. Alves

examines the prediction of the summer and winter heat waves in POAMA, while section 4 presents a summary of the results with concluding remarks. 2. POAMA model, datasets, and methodology a. POAMA model POAMA version 1.5 uses the Bureau of Meteorology unified atmospheric model version 3 (BAM3; Colman et al. 2005 ; Wang et al. 2005 ; Zhong et al. 2006 ) and the Australian Community Ocean Model version 2 (ACOM2; Schiller et al. 1997 ; Schiller et al. 2002 ; Oke et al. 2005 ). BAM3 is a spectral

Full access

: ConditionsGlobal Spectral Ocean Wave Model (first generation ocean surface wave model)Global Telecom~nunications SystemGlobal Weather Intercept ProgramHalf Persistence and ClimatologyIntensive Observation PeriodInternational Satellite Cloud Climatology ProjectJoint Typhoon Warning CenterKnowledge-based management systemKnowledge-based systemLarge Scale Computer at NAVOCEANO, Stennis Space Center, MSLarge Scale Computer at FLENUM OCEANCEN, Monterey, CALocal turbulence indexMedium Beta Advection ModelMulti

Full access
Desiraju B. Rao

height (SWH) andan alphanumeric spectral bulletin. The model runsdaily on the 0000 UTC cycle. From its implementation date through April 1988the wind forcing in the model was the 19.5 m heightwinds derived from the NMC's global spectral atmospheric prediction model fields using Cardone's method(see Gemmill et al. 1988). As of May 1988, the windfield provided to the wave model was obtained directlyfrom a logarthmic reduction of the LSL winds fromthe global meteorological forecast model for

Full access
David M. Gaffin

for providing the 11 April radar data and Dolores Keissling from UCAR–COMET for providing the Meso Eta Model data. REFERENCES Bernstein, B. C., and R. H. Johnson, 1994: A dual-Doppler radar study of an OK PRE-STORM heat burst event. Mon. Wea. Rev., 122, 259–273. 10.1175/1520-0493(1994)122<0259:ADDRSO>2.0.CO;2 Bosart, L. F., and A. Seimon, 1988: A case study of an unusually intense atmospheric gravity wave. Mon. Wea. Rev., 116, 1857–1886. 10.1175/1520-0493(1988)116<1857:ACSOAU>2.0.CO;2

Full access
G. S. Young, J. A. Harlan, and T. M. Georges

sufficiently long lived, and where lower-atmospheric shear is weak ( Rao et al. 1990 ). These conditions severely limit applicability of the cloud-tracking methodology in regions of strong synoptic-scale baroclinicity, just where the interest in detailed synoptic and mesoscale surface analyses is greatest. Microwave radiometry (Special Sensor for Microwave/Imaging, SSM/I) ( Goodberlet et al. 1989 ) and scatterometry ( Offiler 1994 ), using polar-orbiting satellites, are also used to estimate surface wind

Full access
LCDR Cynthia A. Nelson and CDR W. Tyson Aldinger

model include increasing the horizontal resolution and the number of vertical layers, providingbetter specifications of the horizontal boundary conditions, and improving the model physics, particularlywith respect to the planetary boundary layer. TheGSOWM will be replaced with a third-generationglobal ocean surface wave model (WAM). Longer-termplans include development of fully coupled atmospheric and oceanographic models. To assist in the transition of the current operationalmodels from the

Full access
Frank Woodcock and Diana J. M. Greenslade

performance of operational ocean wave forecasting systems with buoy data. Wea. Forecasting , 17 , 287 – 310 . 10.1175/1520-0434(2002)017<0287:IOTPOO>2.0.CO;2 Booij, N. , Ris R. C. , and Holthuijsen L. H. , 1999 : A third-generation wave model for coastal regions. Part I. Model description and validation. J. Geophys. Res. , 104 , 7649 – 7666 . 10.1029/98JC02622 Daley, R. , 1991 : Atmospheric Data Analysis . Cambridge University Press, 457 pp . Donelan, M. , and Pierson W. J. , 1983

Full access