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  • 1
    Electronic Resource
    Electronic Resource
    Some Atmospheric Surface Layer Characteristics over Varanasi from MONTBLEX-90 (1999)
    Springer
    Pure and applied geophysics 155 (1999), S. 81-92 
    Details
    ISSN: 1420-9136
    Keywords: Key words: MONTBLEX, atmospheric surface layer, friction velocity, Monin-Obukhov length scale, turbulent kinetic energy.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract —An attempt has been made to study the atmospheric surface layer characteristics such as Richardson number (Ri). Monin-Obukhov length scale (L), friction velocity (U *  ), friction temperature (θ * ), roughness length (Z 0 ), turbulent kinetic energy (TKE), ratio of eddy conductivity to eddy diffusivity (K m  /K h  ) over a semi-moist convective regime. Data which were collected at Varanasi (25°18′N, 83°E) as part of the experiment known as MONTBLEX-90 (Monsoon Trough Boundary Layer Experiment) during the summer monsoon season was used in the present study. The variation of the above parameters with stability has been discussed. The differences within the surface layer are also pointed out. Some broad features are found to coincide with that of Businger et al. (1971). The heterogeneity and the anisotropic turbulence typical of monsoon tropical atmosphere are shown to be responsible for the deviations noticed within the surface layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000240050255
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  • 2
    Electronic Resource
    Electronic Resource
    Land Surface Layer Characteristics During Monsoon at a Tropical Station (1997)
    Springer
    Pure and applied geophysics 150 (1997), S. 129-142 
    Details
    ISSN: 1420-9136
    Keywords: Key words: Monsoon, fluxes, friction velocity.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract —The atmospheric surface layer over land may behave differently in the tropics, particu larly during the monsoon. A preliminary attempt is made to observe the behavior of surface layer characteristics such as fluxes of momentum, sensible heat and latent heat, friction velocity, friction temperature, M-O length scale, Richardson number and Bowen’s ratio over Kharagpur (22°20′N, 87°18′E), a typical moist tropical station. The diurnal and day-to-day variations have been studied. It is observed that during the active phase of the monsoon the sensible heat flux and Bowen’s ratio are low. The diurnal variation is apparent for most parameters. Mostly near neutral conditions are observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000240050068
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  • 3
    Electronic Resource
    Electronic Resource
    Air pollution potential over South India (1989)
    Springer
    Boundary layer meteorology 48 (1989), S. 299-313 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The potential of the atmosphere to disperse and dilute pollutants emitted into it by myriad sources, depends upon various factors such as wind, vertical mixing, inversion of temperature in the vertical, etc. A study of such parameters is attempted in the present article over south India. The spatial distribution of isothermals, inversions, lapse conditions, mixing heights and ventilation coefficients over south India is studied for the months of January, April, July and October, which are typical of winter, premonsoon, monsoon and post monsoon seasons, respectively. Diurnal variations are also studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00158330
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  • 4
    Electronic Resource
    Electronic Resource
    Mixing heights and ventilation coefficients for urban centres in India (1980)
    Springer
    Boundary layer meteorology 19 (1980), S. 441-451 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Monthly mean afternoon (maximum) and early morning (minimum) mixing heights have been calculated for the winter, pre-monsoon, monsoon and post-monsoon seasons for eleven stations in India, with the assumption of a dry adiabatic lapse rate in the mixing layer. The morning mixing heights have been calculated by adding +5 °C to the surface minimum temperature except for the monsoon season for which a value of +3 °C has been utilized to account for the urban heat island effect. The spatial variation of mean maximum mixing heights over India has also been studied by isopleth analysis. The morning and afternoon ventilation coefficients have been calculated for the eleven stations under consideration. The spatial distribution of afternoon ventilation coefficients has also been studied. The optimum siting industries to minimize our pollution has been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00122344
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  • 5
    Electronic Resource
    Electronic Resource
    On the application of the Gaussian model for multiple industrial sources for selected centers in South India (1990)
    Springer
    Boundary layer meteorology 53 (1990), S. 173-184 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Effective environmental planning is essential for any developing urban region. In the present article, the Gaussian model is applied for multiple industrial sources for the months of January, April, July and October, for the cities Hyderabad, Mangalore and Nagpur, to study the spatial distribution of sulphur dioxide concentration. The validity of the model is tested with the actual observations for two stations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00122469
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  • 6
    Electronic Resource
    Electronic Resource
    An estimation of wind energy along the Indian coasts (1989)
    Springer
    Boundary layer meteorology 49 (1989), S. 439-443 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Of several non-conventional energy sources, wind is probably the most suitable and cost effective for generating electricity and for water pumping. It is essential to establish the available wind energy (AWE) for any given region so as to assess the relative potential at different sites. In the present paper, an attempt is made to study the AWE over south India, an area that is peninsular in nature. A climatological estimate is made for January. April, July and October which are typical of winter, pre-monsoon, monsoon and post-monsoon seasons, respectively. The energy pattern factor is also estimated. The spatial and seasonal variation of AWE is studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00123655
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  • 7
    Electronic Resource
    Electronic Resource
    Atmospheric dispersal capacity over North India (1994)
    Springer
    Theoretical and applied climatology 48 (1994), S. 179-185 
    Details
    ISSN: 1434-4483
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary In this paper the dispersal capacity of the atmosphere has been determined over North India by studying spatial variations of inversions, isothermals, lapse conditions, mixing heights and ventilation coefficients. Seasonal variations of these parameters have also been studied. The western part of North India is best for good dispersal of pollutants while the eastern part is poor at all time of year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00867047
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  • 8
    Electronic Resource
    Electronic Resource
    On the relation between atmospheric stability, surface turbulence and mixing height over Southern India (1994)
    Springer
    Theoretical and applied climatology 49 (1994), S. 19-25 
    Details
    ISSN: 1434-4483
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Pasquill's stability (PS) classification, surface turbulence (ST) and mixing height (MH) have been computed for four selected stations in South India, namely, Bangalore, Hyderabad, Mangalore and Nagpur. The interrelationships between the three parameters have been studied and a comparison has been made with those computed by others. In addition, the diurnal and seasonal variation of ST has been studied. There is strong diurnal variation of ST in all seasons. It is concluded that in the absence of upper air data, good estimates of MH can be obtained from surface anemograms. Regression equations have been developed for obtaining MH from ST.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00866285
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  • 9
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    Air pollution potential over South India (1989)
    Springer
    Details
    Publication Date: 1989-08-01
    Print ISSN: 0006-8314
    Electronic ISSN: 1573-1472
    Topics: Geosciences , Physics
    Published by Springer
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  • 10
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    An estimation of wind energy along the Indian coasts (1989)
    Springer
    Details
    Publication Date: 1989-12-01
    Print ISSN: 0006-8314
    Electronic ISSN: 1573-1472
    Topics: Geosciences , Physics
    Published by Springer
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