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  • 1
    Electronic Resource
    Electronic Resource
    Computations of diabatic heating in the atmosphere (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 274-280 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Diabatic heating of the atmosphere at 800, 600 and 400 mbar surfaces over India has been calculated, making use of thermodynamic and quasi-geostrophic omega equations. The numerically obtained distribution of the diabatic heating field is seen to be in agreement with the observed weather patterns in magnitude. The maximum value of diabatic heating is of the order of 4.0 to 4.5 cal gm−1 12 hr−1. Normally it ranges between 1.0 to 4.0 cal gm−1 12 hr−1. The vertical distribution of the absolute mean value of diabatic heating is seen to be at its maximum at about the 500 mbar surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876139
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Vertical velocity due to mean baroclinicity and diabatic heating of the atmosphere (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 281-288 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Vertical velocities at the 800, 600 and 400 mbar surfaces over India have been calculated, making use of a 3-level geostrophic baroclinic model. Further, the effects of non-adiabatic heating is included into the model and vertical velocity due to diabatic heating is obtained for the same period. A numerically obtained vertical velocity field due to baroclinicity and diabatic heating is seen to be in agreement with the observed weather patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876140
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A slope method of determining absolute resistivity for Schlumberger electrode configuration (1970)
    Springer
    Pure and applied geophysics 82 (1970), S. 251-258 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary A formula has been devised and tested for determining the absolute resistivities of subsurface layers. Three case studies have been made for testing the validity of the formula. The absolute resistivities, have been determined from the slope of the segments of the curve and calculated by intercept method. The depths of the subsurface layers obtained from the intersections of the segments of the curve, agree fairly well with depth of interfaces shown in the bore hole data sections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876182
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Variation in geopotential height of an isobaric level associated with weather conditions (1971)
    Springer
    Pure and applied geophysics 88 (1971), S. 171-179 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Equations $$\frac{{\partial \phi k - 1}}{{\partial t}} = 9.8 T*_{k - 1} \frac{{\phi _k }}{{T_k ^2 }}\frac{{\partial T_k }}{{\partial t}}$$ and $$\frac{{\partial \phi _k }}{{\partial t}} = - 9.8 T*_k \frac{{\phi _k }}{{T_k ^2 }}\frac{{\partial T_k }}{{\partial t}}$$ have been derived. These equations reveal that the variation inT k , the temperature of the layer between two isobaric levels, causes variation in the same sense (increasing or decreasing) inφ k-1, the geopotential height of the lower isobaric level and in the opposite sense inφ k , the geopotential height of the upper isobaric level. The former is associated with the bad or fair weather at and above the level while the latter with the radiational or other heating effects in lower layers. The time-section of the geopotential height of an isobaric level has approximately sinusoidal pattern. An increase in the slope of the geopotential height is indicative of incidence of bad weather, whereas decrease of slope corresponds to fair weather at and above the isobaric level under consideration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00877903
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  • 5
    Electronic Resource
    Electronic Resource
    Interpretation of gravity and magnetic anomalies caused due to spherical bodies (1971)
    Springer
    Pure and applied geophysics 90 (1971), S. 9-14 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The method of continuation has been used to obtain the master curves for gravity and magnetic anomalies caused by spherical bodies. The procedure to calculate the depth of burial and radius of spherical bodies has been outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875502
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  • 6
    Electronic Resource
    Electronic Resource
    Actinometric determination of turbidity parameters in India (1971)
    Springer
    Pure and applied geophysics 91 (1971), S. 227-234 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary A study of the wavelength exponent α of aerosol scattering in the Ångström relation for extinction by aerosol has been made from the ground-based measurments of direct solar radiation using Ångström pyrheliometer with and without Schott filters. It has been observed that in India, mainly for the middle part of the year this exponent α is zero or even negative which means that the aerosol scattering is nearly neutral which is in marked contrast with the condition prevailing in middle latitudes. It is evident from the α-values that the aerosol size distribution in India is far different from that prevailing in middle latitudes. At four representative stations in India, the values of the wavelength exponent α and the atmospheric turbidity coefficient β have been determined using the method introduced byÅngström [1,2]) and are discussed here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00879570
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Reduction of the complete omega equation to the simplest form (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 219-223 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Using the vorticity and the thermodynamic equation, ‘Omega Equation’ has been derived. The effect of friction is not taken into account. The vertical velocity omega (ω) is composed of two parts, viz. mean baroclinicity in the atmosphere and heating. The baroclinicity part includes three terms. The magnitude of the second term is of the order of 10−10 to 10−12 mb−1 sec−2,and that of the last is 10−10 to 10−12 mb−1 sec−2, whereas the first term is of the order of the vertical velocity omega 10−4 to 10−6 sec−1. Therefore, the higher order terms can be omitted. Thus with the above approximation the complicated expression for omega is reduced to a simple form.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875937
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  • 8
    Electronic Resource
    Electronic Resource
    Palaeoclimatic studies of India with the help of palaeobotanical evidences in tertiary period (1972)
    Springer
    Pure and applied geophysics 101 (1972), S. 276-280 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The present day distribution of plants shows that certain environments are characterised by certain plant communities peculiar to them. The environmental condition under which the fossil plant, lived, are interpreted from the habitats under which their modern equivalent live. Environment is necessarily the surrounding condition influences or forces by which living things are influenced or modified in their growth and subsequent development. Climate has perhaps played the most significant role in regulating the environment of a particular region. As we know geologically India is divisible into three units (1) Peninsular, (2) Extra Peninsular and (3) Indo-Gangetic plain. The tertiary floras of India can conveniently be divided into two groups-Palaeogene and Neogene. As known today, Palaeogene flora is found only in the Peninsular India. The palaeogene flora is analysed at family level and also determined the percentages of exclusively tropical, mainly tropical, tropical and Extra-tropical, mainly Extratropical and exclusively Extratropical families. Relationship between the Palaeogene families and living tropical families is proposed as a means of evaluating the palaeoclimate of the region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876790
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Aftershock sequence of the Solomon Island earthquake of June 15, 1966 (1970)
    Springer
    Pure and applied geophysics 80 (1970), S. 162-170 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary This paper is an attempt to study the aftershock sequence of the Solomon Island as outlined by Benioff. Relaxation time and other parameters of this earthquake such as the strain, stress, length of fault break etc, have been calculated. Finally the development of the aftershock region has been discussed along with the frequency magnitude analysis of the aftershock sequence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00880204
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  • 10
    Electronic Resource
    Electronic Resource
    Upper air mean dry-bulb and dew-point temperature profiles over Gauhati airport (1972)
    Springer
    Pure and applied geophysics 97 (1972), S. 214-218 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The best fit curves for upper air mean dry-bulb and dew-point temperatures over Gauhati airport (26°05′N, 91°43′E, 49 metres a.m.s.l.), for the month of April, have been calculated with the equation,x=A+By+Cy 2,y being the log value in mb of the isobaric level under consideration andx, the mean dry-bulb or dew-point temperature as the case may be, at the isobaric level under consideration. The values of constantsA, B andC for morning dry-bulb and dew-point curves come to be −29.54559, −93.65766 and +37.35048 and −118.84791, −31.15503 and +25.63585 respectively and values of these constants for evening curves come to be −35.86214, −94.15694 and +38.61870 and −127.55970, −29.97192 and +26.36538 respectively. These best fit curves help in finding out mean desired temperatures at any isobaric level in forecasting of thunderstorms and hailstorms, at a station, by dry-bulb and dew-point temperature anomaly technique propsed earlier by the authors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875962
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    Paper (German National Licenses)
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