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Study of planetary boundary layer height from LIDAR measurements and ALARO model

A. TIMOFTE1,2, L. BELEGANTE3,* , M. M. CAZACU1,4, B. ALBINA1, C. TALIANU3, S. GURLUI1

Affiliation

  1. Faculty of Physics, Alexandru Ioan Cuza University of Iasi, Bulevardul Carol I, nr. 11, 700506 Iasi, Romania, Atmosphere Optics, Spectroscopy and Lasers Laboratory (LOA-SL Iasi)
  2. National Meteorological Administration, Regional Forecast Center Bacau, 3 Timpului Str., Bacau, Romania
  3. National Institute of R&D for Optoelectronics, 409 Atomistilor Street, Magurele, IlfovPO Box MG-5, RO-77125 Romania
  4. Physics Department, Gheorghe Asachi Technical University of Iasi, 59A Mangeron Blvd., 700050 Iasi, Romania

Abstract

The time evolution of the Planetary Boundary Layer (PBL) height has a significant impact on weather events and air quality since it is one of the parameters affecting the atmospheric state. This paper presents results concerning the PBL height retrieval using several techniques and assessment methods. The studies are focused on remote sensing methods, radiosoundings and numerical models. The PBL height behaviour has been studied in two sites by means of vertical humidity, temperature profiles and range corrected lidar signal. A good correlation between lidar, microwave radiometry and radio sounding profiles has been evidenced for the analyzed period. PBL height estimation performed by ALARO has a permanent offset with respect to the other methods during the cold season..

Keywords

PBL height, Lidar, ALARO, Radio-soundings, Microwave radiometer.

Submitted at: May 29, 2015
Accepted at: June 24, 2015

Citation

A. TIMOFTE, L. BELEGANTE, M. M. CAZACU, B. ALBINA, C. TALIANU, S. GURLUI, Study of planetary boundary layer height from LIDAR measurements and ALARO model, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 911-917 (2015)