Structure of the Indian southwesterly pre-monsoon and monsoon boundary layers: Observations and numerical simulation |
| |
| Institution: | 1. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna 141980, Moscow region, Russia;2. Fachbereich Physik, Universität Wuppertal, D-42097 Wuppertal, Germany;3. Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany;1. Department of Mathematics, Saifia Science College, Bhopal, M.P, 462021, India;2. Department of Mathematics, Technocrats Institutes of Technology, group of Institutes Bhopal, 462021, India;3. Department of Mathematics, Institute of Excellence in Higher Education Bhopal, 462016, India;4. Department of Mathematics, J.H. Govt. P.G. College Betul, 460001, India;1. School of Physics, Damghan University, Damghan, 3671641167, Iran;2. Departamento de Física, Universidade Federal de Juiz de Fora, 36036-330, Juiz de Fora, MG, Brazil;3. Irving K. Barber School of Arts and Sciences, University of British Columbia - Okanagan, Kelowna, BC V1V 1V7, Canada;4. Department of Physics and Astronomy, University of Lethbridge, Lethbridge, Alberta, T1K 3M4, Canada;5. Grupo de Física Teórica e Matemática Física, Departamento de Física, Universidade Federal Rural do Rio de Janeiro, 23890-971, Seropédica, RJ, Brazil |
| |
| Abstract: | Characteristics of pre-monsoon and monsoon boundary layer structure and turbulence were studied in New Delhi and Bangalore, India during the summer of 1987. Micrometeorological towers were installed and instrumented at these locations to provide mean and turbulent surface layer measurements, while information on the vertical structure of the atmosphere was obtained using miniradiosondes. Thermal structures of the pre-monsoon and monsoon boundary layers were quite distinct. The daytime, pre-monsoon boundary layer observed over New Delhi was much deeper than that of the monsoon boundary layer observed over Bangalore and at times was characterized by multiple inversions. Surface, turbulent sensible heat fluxes at both sites were approximately the same (235 and 200 Wm−2 for New Delhi and Bangalore, respectively). Diurnal variations in the monsoon boundary layer at Bangalore were more regular compared to those under pre-monsoon conditions at New Delhi. One-dimensional numerical simulations of the pre-monsoon boundary layer using a turbulent energy closure scheme show good agreement with observations. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
