Atmospheric Sciences [CAS]: Recent submissions
Now showing items 130 of 37

Environmental studies of SO2, SPM and NOx, over agra, with various methods of treating calms
(1994)A comparative study between predicted and observed concentrations of major pollutants SO2, suspended particulate matter (SPM) and NOx in Agra, India has been undertaken using two Gaussian plume models. A Gaussian plume ... 
The effect of freshwater discharge from the Godavari river on the occurrence of local upwelling off the east coast of India
(1993)A numerical model is described and applied to investigate the combination of the wind and estuariallydriven circulation of water off the east coast of India. A previous numerical modelling study has shown that the estuarial ... 
A note on Gutierrez's kinetics model for oxygen delivery to tissue
(1992)The problems associated with Gutierrez model (1986, Resp. Physiol. 63, 7996) on O2 delivery to tissue are discussed. He has used a dimensionally incorrect function for the oxygen dissociation curve (ODC). The dimensionally ... 
The effects of chemical kinetics on oxygen delivery to tissue
(1992)A mathematical model has been formulated to analyze the effect of nonequilibrium kinetics on oxygen delivery to tissue. The model takes into account molecular diffusion, facilitated diffusion in the capillary blood, ... 
A twolayer model for studying the effect of plasma layer on the delivery of oxygen to tissue using a finite element method
(1997)A mathematical model is described for the transport of oxygen in the systemic capillaries and the surrounding tissue. The model takes into account the molecular diffusion, the convective effect of the blood, the nonlinear ... 
Application of two turbulence closure schemes in the modelling of tidal currents and salinity in the hooghly estuary
(1999)This paper has two purposes. The first is to study the circulation and salinity in Hooghly Estuary, along the east coast of India and the second is to compare the performance of two turbulence closure schemes by modelling ... 
Twodimensional analytical model for estimating crosswind integrated concentration in a capping inversion: eddy diffusivity as a function of downwind distance from the source
(2001)A mathematical model has been proposed for computing crosswindintegrated concentration in a capping inversion layer by considering the eddy diffusivity as a function of down wind distance from the source. An analytical ... 
The steady laminar flow of an elasticoviscous liquid in a curved pipe of varying elliptic cross section
(1997)The fully developed steady laminar flow of an idealized elssticoviscous liquid through a curved tube with elliptic cross section is studied. The axes of the ellipse are placed in an arbitrary position with respect to the ... 
Bhopal gas accident: a numerical simulation of the gas dispersion event
(1997)An account of the Bhopal Methyl Isocyanate (MIC) gas accident is given. A numerical modelling approach is presented that provides the prevailing flow and dispersion at the time of the infamous gas accident. The meteorological ... 
Dispersion of pollutants in convective low wind: a case study of Delhi
(2002)The transport and dispersion of pollutants becomes weak under low wind conditions resulting in large ground level concentrations (g.l.c.'s). Largest mean g.l.c.'s due to elevated sources are typically found under daytime ... 
A line source model for Delhi
(1999)A line source model, developed in Indian Institute of Technology (IIT) Delhi, India, namely IIT line source (IITLS) model, is proposed to describe the downwind dispersion of pollutants near roadways along with a brief ... 
Effect of winds on SO2 and SPM concentrations in Delhi
(2002)A study of concentrations of sulfur dioxide (SO2) and suspended particulate matter (SPM) has been performed in Delhi. The monthly and seasonal variations of concentrations and winds are analyzed. The monthly mean SO2 ... 
Simulation of shortrange diffusion experiment in lowwind convective conditions
(2002)A previously obtained analytical solution to model the shortrange dispersion of pollutants in low winds from surface releases has been used to simulate diffusion tests conducted during winter in weakly convective conditions ... 
A compartmental model for oxygen transport in brain microcirculation in the presence of blood s
(2002)A compartmental model is developed for oxygen (O2) transport in brain microcirculation in the presence of blood substitutes (hemoglobinbased oxygen carriers). The cerebrovascular bed is represented as a series of vascular ... 
Experimental investigation of solar chimney assisted bioclimatic architecture
(1998)Human health and human comfort have been perceived as the most important parameters while assessing the indoor environment. Developing countries, constrained by extreme environmental conditions, poor building technologies ... 
Energy conservation in highrise buildings:changes in conditioning load induced by vertical temperature and humidity profile in Delhi
(1998)Temperature and humidity profiles in the upper atmosphere are different from those observed by ground level meteorological stations and used to design HVAC systems for highrise buildings. There exist correlations among ... 
Two optimization techniques as used in a general four compartment firstorder system
(2001)Life is a continuously changing phenomenon, and ,the capacity to observe timedepend ent processea by nondestructive means (for example, by tracer techniques) provides functional in formation which cannot be otherwise ... 
Statistical evaluations of sigma schemes for estimating dispersion in low wind conditions
(1996)Previously described sigma schemes for the stimation of dispersion parameters in low wind speed situations are evaluated statistically with the data obtained in a series of diffusion experiments (conducted by U.S. National ... 
A compartmental model for oxygen transport in brain microcirculation in the presence of blood substitutes
(2002)A compartmental model is developed for oxygen (O2) transport in brain microcirculation in the presence of blood substitutes (hemoglobinbased oxygen carriers). The cerebrovascular bed is represented as a series of vascular ... 
Integrated risk analysis for acute and chronic exposure to toxic chemicals
(2003)The traditional practice to assess and evaluate different types of risk in isolation to each other are liable to give erroneous results. Integrated risk assessment is an answer to overcome this problem. This paper presents ... 
Various methods of emission estimation of vehicular traffic in delhi
(1998)Traffic is the predominant source of pollution in urban cities like Delhi. Continuous monitoring of the air quality in roads will be very costly and impracticable. To carry out model calculations is a useful alternative ... 
Emission estimates and trends (1990–2000) for megacity Delhi and implications
(2004)A comprehensive emission inventory for megacity Delhi, India, for the period 1990–2000 has been developed in support of air quality, atmospheric chemistry and climate studies. It appears that SO2 and total suspended particles ... 
Modeling and monitoring of suspended particulate matter from Badarpur thermal power station Delhi
(2004)The present work focuses on the seasonal evaluation of suspended particulate matter (SPM) produced by Badarpur thermal power station (BTPS) within a radius of 5 km of its source. The study was carried out using both ... 
Application of the multiquadric method for numerical solution of elliptic partial differential equations
(1997)We have used the multiquadric (MQ) approximation scheme for the solution of elliptic partial differential equations with Dirichlet and/or Neumann boundary conditions. The scheme has the advantage of using the data points ... 
On the bulk Richardson number and flux–profile relations in an atmospheric surface layer under weak wind stable conditions
(2003)For describing the surface fluxes in the atmospheric dispersion models, the commonly used linear universal similarity functions m and h for nondimensional wind and temperature profiles (J. Atmos. Sci. 28 (1971) 181; ... 
Present scenario of air quality in Delhi: a case study of CNG implementation
(2003)The present study discusses the ambient air quality of Delhi from the point of view of change of diesel by Compressed Natural Gas (CNG) in transportation in Delhi. Several initiatives were taken to reduce extremely high ... 
Potential health risks related to carcinogens in the atmospheric environment in india
(1996)In India, rapid urbanization and ndustrialization have contributed positively toward meeting the materialistic needs of the citizens, but have also resulted incontamination of the atmospheric environment. This paper deals ... 
A mathematical model for the dispersion of air pollutant in low wind condition
(Elsevier Science, 1996)For the atmospheric dispersion of pollutants in low wind conditions, a steadystate mathemat ical model has been formulated which takes into account the diffusion in all the coordinate directions and the advection due to ... 
Atmospheric response to tropical denuding of vegetation
(1995)Two simulations of atmospheric circulations dunng June, July and August 1988 have been made with LMD Atmospheric General Circulation Model using a classified vegetatmn global cover with and without the tropical vegetation ... 
Climate modeling using parallel processors
(1995)A spectral General Circulation Model at horizontal resolutmns T21 and T42 has been integ rated upto 30 d on 16 and 32 processors of Meiko T800. The model at resoluuon T21 is also implemented on 16 processors (T800) of a ...