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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 31 (1993), S. 217-232 
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 29 (1980), S. 357-361 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Mit Verwendung eines Vier-Schichten geostrophisch baroklinen Modells werden die adiabatischen und die diabatischen Vertikalgeschwindigkeiten über dem Gebiet von Indien berechnet. Die Glättung des Ausgangshöhenfeldes nach Zeit und Raum wird nach der Methode von Shuman für jede der vier Flächen von 900, 700, 500 und 300 mb durchgeführt. Die mit geglätteten und die mit ungeglätteten Höhenfelddaten berechneten Vertikalgeschwindigkeiten werden miteinander verglichen.
    Notes: Summary The adiabatic and diabatic vertical velocities at 800, 600 and 400 mb surfaces were computed using 4-level geostrophic baroclinic model over the Indian region. The smoothing of initial height field in time and space following Shuman's technique has been done at each of the four levels 900, 700, 500 and 300 mbs. The vertical velocities computed by using smoothed and unsmoothed height data have been compared.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 25 (1976), S. 55-65 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wurden adiabatische Vertikalgeschwindigkeitsfelder in Druckkordinaten in Schichten von 200 mb von der 1000 mb-bis zur 200 mb-Fläche aus einem Indien überdeckenden Gittemetz abgeleitet. Mit der berechneten adiabatischen Vertikalgeschwindigkeit wird aus der thermodynamischen Energiegleichung die diabatische Vertikalgeschwindigkeit gewonnen. Die Niederschlagsverteilung zeigt eine Übereinstimmung mit den Gebieten mit aufsteigender Bewegung. Die berechnete diabatische Vertikalgeschwindigkeit ist in jedem der 800-, 600- und 400 mb-Niveaus um ungefähr eine Größenordnung größer als die adiabatische Vertikalgeschwindigkeit.
    Notes: Summary The adiabatic vertical velocity fields in the pressure coordinates were evaluated at the intervals of 200 mb in a vertical column extending from 1000 mb to 200 mb surface on a mesh covering Indian region. The computed adiabatic vertical velocity was used in the thermodynamic energy equation to obtain diabatic vertical velocity. The rainfall patterns were seen to be in agreement with rising motion. The computed diabatic vertical velocity is generally about an order of magnitude larger than adiabatic vertical velocity at each of the three levels viz., 800, 600 and 400 mb.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 25 (1976), S. 117-124 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Im Bewußtsein der Grenzen, die bekanntlich einem quasigeostrophischen Modell in den Tropen gesetzt sind, wurden Berechnungen der adiabatischen und der diabatischen Vertikalgeschwindigkeiten mit einem quasigeostrophischen baroklinen Modell in Intervallen von je 200 mb von 1000 bis 200 mb für die Region von Indien durchgeführt. Die Verteilung der Vertikalgeschwindigkeiten und des Niederschlages werden besprochen.
    Notes: Summary Inspite of the well known limitation of quasi-geostrophic model in the tropics, computations of adiabatic and diabatic vertical velocities with quasi-geostrophic baroclinic model was made at intervals of 200 mb from 1000 to 200 mb for the Indian region. The fields of vertical velocity and rainfall are discussed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 25 (1977), S. 227-235 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Mittels eines dynamischen Modells wurde die diabatische Erwärmung in druckkoordinaten für Intervalle von je 200 mb auf einem Indien überdeckenden Netz für einen Zeitabschnitt mit starkem Monsun berechnet. Die für jede der drei Niveaus 800, 600 und 400 mb berechnete diabatische Erwärmung scheint im allgemeinen durch die Niederschlagsverteilung verursacht zu sein. die gemeldeten Regenmengen scheinen von einer für die Erzeugung der berechneten diabatischen Erwärmung richtigen Größenordnung zu sein.
    Notes: Summary The diabatic heating in pressure coordinate was computed at intervals of 200 mb on a mesh covering Indian region for the strong monsoon epoch using a dynamic model. The computed diabatic heating at each of the three levels viz. 800, 600 and 400 mb were seen to be generally supported by the distribution of rainfall. The reported amount of rainfall was seen to be of right order of magnitude to produce the computed diabatic heating.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 112 (1974), S. 281-288 
    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
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 120 (1982), S. 211-217 
    ISSN: 1420-9136
    Keywords: Energy conversion ; Available potential energy ; Kinetic energy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Energy conversions from potential to kinetic energy have been studied for a part of the Northern Hemisphere in the wave number domain. The vertical distribution of energy conversions were examined and the results have been compared with the other's observational results as well as that of forecast models.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 112 (1974), S. 219-223 
    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
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 120 (1982), S. 218-228 
    ISSN: 1420-9136
    Keywords: Energy generation ; Energy conversion ; North America
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The energy conversion between potential and kinetic energy and the generation of available potential energy are computed over North America. The relative contribution from each latitude belt within the region, for each field, have been discussed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 112 (1974), S. 274-280 
    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
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