Wind profile in the planetary boundary layer during morning hours over a tropical semi-arid station

Authors

  • T DHARMARAJ Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune – 411 008, India
  • MN PATIL Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune – 411 008, India
  • RT WAGHMARE Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune – 411 008, India
  • SD PAWAR Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune – 411 008, India

DOI:

https://doi.org/10.54302/mausam.v73i4.3727

Keywords:

Wind veering, Wind backing, Low level Jet, Double mixing line structure, LASPEX

Abstract

The land surface processes associated with heat and momentum, govern the heating of atmospheric boundary layer (ABL) in the morning hours. In the present study, we investigate the structure of wind in ABL depicted in the morning hours and its role in establishing the heating of ABL. For this purpose, the Radiosonde/Radiowind observations collected during the Land Surface Processes Experiment (LASPEX) over the tropical station Anand, India, have been used. It is observed that ABL wind profiles have been changed from one season to another in the form of wind rotation and prominent low level jet (LLJ) stream. During the monsoon season, LLJ played a significant role in establishing the double mixing line structure and elevated wind-backing layer. 

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Published

01-10-2022

How to Cite

[1]
T. DHARMARAJ, M. PATIL, R. WAGHMARE, and S. PAWAR, “Wind profile in the planetary boundary layer during morning hours over a tropical semi-arid station ”, MAUSAM, vol. 73, no. 4, pp. 957–962, Oct. 2022.

Issue

Vol. 73 No. 4 (2022): MAUSAM

Section

Shorter Contribution

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