The Growth of the Planetary Boundary Layer at a Coastal Site: a Case Study |
| |
| Authors: | Ferdinando De Tomasi M Marcello Miglietta M Rita Perrone |
| |
| Institution: | (1) Physics Department, Mangalagangotri, Mangalore University, Mangalore, India;(2) Indira Gandhi Centre for Atomic Research, Kalpakkam, India |
| |
| Abstract: | A lidar system is used to determine the diurnal evolution of the planetary boundary layer (PBL) height on a summer day characterized
by anticyclonic conditions. The site is located some 15 km distant from the sea, on a peninsula in south-east Italy. Contrary
to expectations, the PBL height, after an initial growth consequent to sunrise, ceases to increase about 2 h before noon and
then decreases and stabilizes in the afternoon. An interpretation of such anomalous behaviour is provided in terms of trajectories
of air parcels towards the lidar site, which are influenced by the sea breeze, leading to a transition from a continental
boundary layer to a coastal internal boundary layer. The results are analyzed using mesoscale numerical model simulations
and a simple model that allows for a more direct interpretation of experimental results. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
