Studies of correlation between sodar observed stratified Layer structures and wind shear

Authors

  • S. P. SINGAL National Physical Laboratory, New Delhi
  • S. K. AGGARWAL National Physical Laboratory, New Delhi
  • B. S. GERA National Physical Laboratory, New Delhi

DOI:

https://doi.org/10.54302/mausam.v33i4.2592

Abstract

Sodar echograms recorded at Delhi (NPL) under all weather conditions have shown many a times stratified layers in addition to the surface based layer. These layers may be single or multiple, continuous or intermittent and may be superposed with perturbations. Data observed for the period May 1977-April 1979 have been analysed with respect to their height, thickness, time, degree of inversion gradient and wind shear. It has been seen that stratified elevated layers occur under all kinds of strong or weak wind shear and inversion conditions. However, layers observed on days  of occurrence of thunderstorm or cold fronts have been seen to be accompanied with strong wind shear conditions, The magnitude of Wind shear has been calculated on days of sudden drop in surface temperature occurring during the storm. The calculated wind shear values show a hazardous situation for aviation.

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Published

01-10-1982

How to Cite

[1]
S. P. SINGAL, S. K. AGGARWAL, and B. S. GERA, “Studies of correlation between sodar observed stratified Layer structures and wind shear”, MAUSAM, vol. 33, no. 4, pp. 439–444, Oct. 1982.

Issue

Vol. 33 No. 4 (1982): MAUSAM

Section

Shorter Contribution

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