in this letter we have proposed a new regularization scheme to deal with the divergent integralsoccurring in the quantum mechanical problem of calculating the bound state energy of the delta-functionpotential in two and three dimensions. based on the schwinger parameterization technique we argue thatthere are no infinities even in d dimensions. in this way we were able to compare our proposal w...

iran is a vast land of geographically specific features and the climate is quite different. each year a number of times, short intense rains caused flooding in various parts of the southern coast of the caspian sea and river flood malicious conduct is falling. the rainfall intensity is greater and more destructive floods caused heavy damage. severe flooding during the brutal summer precipitatio...

The main objective of this study is to use Atmospheric Radiation Measurement (ARM) intensive observation period (IOP) data to refine a cloudiness parameterization, as proposed by Xu and Randall (1996a). The cloudiness parameterization uses the large-scale average condensate (cloud water and cloud ice) mixing ratio as the primary predictor. The large-scale relative humidity and cumulus mass flux...

This study presents the interannual variation in summer monsoon rainfall during El Nino Southern Oscillation (ENSO) phases, that is, and La Nina throughout Indian subcontinent its subregions 1986–2010. The analysis includes performance assessments of regional climate model (RegCM4) simulating through comparison with India Meteorological Department data. Observation clearly demonstrates Nino/La ...

A modified Tiedtke cumulus parameterization (CP) scheme has been implemented into the Advanced Research Weather Research and Forecasting model (ARW-WRF) to improve the representation of marine boundary layer (MBL) clouds over the southeast Pacific (SEP). A full month simulation for October 2006 was performed by using the National Centers for Environmental Prediction (NCEP) final analysis (FNL) ...

Numerical simulations with the NCAR=PSU Mesoscale Model 5 (MM5) were performed to study a large-amplitude gravity wave event that occurred on 4 January 1994 along the East Coast of the United States. Results from the MM5 control simulation using a 12-km mesh resolution compared well with the synoptic and mesoscale observational analysis. The simulated gravity waves displayed timing, location, w...