Download e-book for kindle: Basics of atmospheric science by A. Chandrasekar

By A. Chandrasekar

ISBN-10: 8120340221

ISBN-13: 9788120340220


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ATMOSPHERIC OBSERVATIONS u 31 inadequate. Unlike the upper air network, one requires a very large number of surface station networks. The reason for the above behaviour is that the atmospheric structure is much smoother and is predominantly large scale at the upper levels of the atmosphere than it is close to the surface. e. less smoother close to the surface. This is why, despite the relatively fine mesh and more frequent surface observations, the surface meteorological network is just about adequate to provide for atmospheric structures close to the surface.

The above measurements from several meteorological stations at the same universal time can reveal important patterns/structures as well as characteristics of the size and movements of the various meteorological systems. 6. 7 on satellite observations. 1 OVERVIEW AND IMPORTANCE OF METEOROLOGICAL OBSERVATION Meteorological observations are the main source of providing meaningful information of the physical and chemical aspects of the atmosphere. In addition to furthering our understanding of the atmospheric processes, the meteorological observations are also used in the development of theories which ultimately explain the observed behaviour of the atmosphere.

Newton’s second law of motion, which characterizes the conservation of linear momentum when deduced in rotating coordinates, gives rise to additional apparent forces such as the Coriolis force. ) The horizontal frictionless flow, parallel to the isolines of pressure known as geostrophic flow, results from a balance between the Coriolis force and the pressure gradient force. The gradient flow resulting from the balance between Coriolis, centrifugal and pressure gradient forces manifests as a counterclockwise circulation around lows in the northern hemisphere; in the southern hemisphere this circulation around low-pressure systems is clockwise.

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Basics of atmospheric science by A. Chandrasekar

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