Search Results - subject:"parameterization"

Customization of WRF-ARW model with physical parameterization schemes for the simulation of tropical cyclones over North Indian Ocean

Osuri, Krishna; Mohanty, U.; Routray, A.; Kulkarni, Makarand - In: Natural Hazards 63 (2012) 3, pp. 1337-1359

tropical cyclones (TCs). Several convection and PBL parameterization schemes incorporate these processes in the numerical … weather prediction models. Therefore, a systematic intercomparison of performance of parameterization schemes is essential to … customize a model. In this context, six combinations of physical parameterization schemes (2 PBL Schemes, YSU and MYJ, and 3 …

Persistent link: https://www.econbiz.de/10010995965

UVB irradiance and atmospheric optical depth at the Dead Sea basin, Israel: Measurements and modeling

Kudish, Avraham I.; Evseev, Efim G. - In: Renewable Energy 48 (2012) C, pp. 344-349

of the Lambert–Beer's law. The parameterization schemes of both direct and global UVB components are validated against … parameterization schemes have been applied for both clear and all sky's conditions. Moreover, results obtained through the proposed … parameterization schemes revealed adequate predictions for the three UVB radiant components. …

Persistent link: https://www.econbiz.de/10011046217

Estimating m-regimes STAR-GARCH model using QMLE with parameter transformation

Chan, Felix; Theoharakis, Billy - In: Mathematics and Computers in Simulation (MATCOM) 81 (2011) 7, pp. 1385-1396

It is well known in the literature that obtaining the parameter estimates for the Smooth Transition Autoregressive-Generalized Autoregressive Conditional Heteroskedasticity (STAR-GARCH) can be problematic due to computational difficulties. Conventional optimization algorithms do not seem to...

Persistent link: https://www.econbiz.de/10010869931

Impact of physical parameterization schemes on numerical simulation of super cyclone Gonu

Deshpande, Medha; Pattnaik, S.; Salvekar, P. - In: Natural Hazards 55 (2010) 2, pp. 211-231

explicit cloud microphysics parameterization schemes on intensity and track forecast of super cyclone Gonu (2007) using the … parameterization schemes on the storm’s track and intensity forecast. Convective parameterization schemes (CPS) include Grell (Gr … Mellor–Yamada (MY) and the Medium-Range Forecast (MRF); and cloud microphysics parameterization schemes (MPS) comprise Warm …

Persistent link: https://www.econbiz.de/10010846243

On functional form representation of multi-output production technologies

Färe, Rolf; Martins-Filho, Carlos; Vardanyan, Michael - In: Journal of Productivity Analysis 33 (2010) 2, pp. 81-96

Persistent link: https://www.econbiz.de/10008583333

The simulation of heavy rainfall episode over Mumbai: impact of horizontal resolutions and cumulus parameterization schemes

Deb, Sanjib; Kishtawal, C.; Bongirwar, V.; Pal, P. - In: Natural Hazards 52 (2010) 1, pp. 117-142

Grell–Devenyi ensemble (GDE) cumulus parameterization schemes in single and nested domain configurations. The model …

Persistent link: https://www.econbiz.de/10010758785

Estimating Difficulty from Polytomous Categorical Data

Revuelta, Javier - In: Psychometrika 75 (2010) 2, pp. 331-350

Persistent link: https://www.econbiz.de/10008456051

Parameterization of sea surface drag under varying sea state and its dependence on wave age

Kumar, R. Rajesh; Kumar, B. Prasad; Satyanarayana, A.; … - In: Natural Hazards 49 (2009) 2, pp. 187-197

Momentum and energy exchange at air–sea interface through wind stress is very important for air–sea interaction studies, ocean modeling, and climate studies. The accurate representation of wind stress, in terms of drag coefficient, is a key factor in estimating the momentum transfer at the...

Persistent link: https://www.econbiz.de/10010846521

Optimal design and operation of a wastewater purification system

Alvarez-Vázquez, Lino J.; Balsa-Canto, Eva; Martínez, … - In: Mathematics and Computers in Simulation (MATCOM) 79 (2008) 3, pp. 668-682

Due to the importance of coastal areas, is of the highest interest to implement purification systems that with minimum cost are able to assure water quality standards in agreement with the regional legislations. This work addresses the optimal design (outfall locations) and optimal operation...

Persistent link: https://www.econbiz.de/10011050784

Turbulent statistical characteristics associated to the north wind phenomenon in southern Brazil with application to turbulent diffusion

Arbage, Maria Cristina Andres; Degrazia, Gervásio Annes; … - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 16, pp. 4376-4386

A parameterization for the transport processes in a shear driven planetary boundary layer (PBL) has been established … theory. Finally, a validation for the present parameterization has been accomplished, using a Lagrangian stochastic … study shows that the turbulence parameterization constructed from wind data for north wind flow cases is able to describe …

Persistent link: https://www.econbiz.de/10011061708