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  • 11
    Electronic Resource
    Electronic Resource
    Mixed-layer characteristics as related to the monsoon climate of New Delhi, India (1994)
    Springer
    Boundary layer meteorology 67 (1994), S. 213-227 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Annual variations of mixed-layer characteristics at New Delhi, India have been studied for a weak monsoon (1987) and a strong monsoon (1988) year. In the weak monsoon year (1987), the maximum mixing depthh max was found to have a value of around 3000 m during the pre-monsoon, less than 2000 m during the summer monsoon, around 2000 m during the post-monsoon, and less than 1000 m in the winter season. For the strong monsoon year (1988),h max values were less than 1987 values for comparable periods throughout the year. The seasonal and yearly differences ofh max were explained by the surface energy balance and potential temperature gradient γ at a time close to sunrise. According to the spatial patterns of γ obtained by an objective analysis of the 850 to 700 hPa layers. mixed-layer characteristics obtained at New Delhi are representative of the north and central regions of India.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713142
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    A Study On Atmospheric Boundary-Layer Characteristics At Anand, India Using Lsp Experimental Data Sets (2000)
    Springer
    Boundary layer meteorology 96 (2000), S. 393-419 
    Details
    ISSN: 1573-1472
    Keywords: Fluxes ; Land surface processes ; Planetary boundary layer ; Turbulent kinetic energy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract An attempt is made to study the planetary boundary layer (PBL) characteristics during the winter period at Anand (22.4°N, 72.6°E), a semi-arid region, which is located in the western part of India. A one-dimensional turbulent kinetic energy (TKE) closure model is used for the study. The structure of the PBL,which consists of profiles of zonal and meridional components of wind,potential temperature and specific humidity, is simulated. A one-dimensional soil heat and moisture transport parameterization scheme is incorporated for the accurate representation of the energy exchange processes at the soil-atmosphere interface. The diurnal variation of fluxes of sensible heat, latent heat, shortwave radiation, net radiation and soil flux, soil temperature at different depths, Richardson number and TKE at the height of the constant flux layer is studied. The model predictions are compared with the available observations obtained from a special Land Surface Processes (LSP) experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002699522932
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    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Effect of three different boundary-layer parameterisations in a regional atmospheric model on the simulation of summer monsoon circulation (1997)
    Springer
    Boundary layer meteorology 84 (1997), S. 363-381 
    Details
    ISSN: 1573-1472
    Keywords: Indian summer monsoon circulation ; Monsoon depression ; Planetary boundary layer ; Bulk method ; First order closure scheme ; TKE closure scheme
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Bulk, first-order and turbulent kinetic energy (TKE) closure schemes are used to parameterise the boundary-layer physics in a high resolution, limited area model. The model was used to simulate the summer monsoon circulations over India. The domain selected included the monsoon trough over northern India, a region of mesoscale convection. A monsoon depression was present at the time of the simulation. The results indicate that the TKE closure scheme combined with the Monin–Obukhov surface-layer similarity relation provided the best 48-hour simulation of the circulation and the rainfall associated with the monsoon depression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1000402013655
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    Paper (German National Licenses)
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