Adrian Timofte
Alexandru Ioan Cuza University
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Featured researches published by Adrian Timofte.
TIM 2013 PHYSICS CONFERENCE | 2014
Bogdan Albina; Marius Mihai Cazacu; Adrian Timofte; Dan Gheorghe Dimitriu; S. Gurlui
The IR camera is a relatively novel device for remote sensing of atmospheric thermal processes from the Planetary Boundary Layer (PBL) based on measurements of the infrared radiation. Infrared radiation is energy radiated by the motion of atoms and molecules on the surface of aerosols, when their temperature is more than absolute zero. The IR camera measures directly the intensity of radiation emitted by aerosols which is converted by an imaging sensor into an electric signal, resulting a thermal image. Every image pixel that corresponds to a specific radiance is pre-processed to identify the brightness temperature. The thermal infrared imaging radiometer used in this study, NicAir, is a precision radiometer developed by Prata et al. The device was calibrated for the temperature range of 270–320 K and using a calibration table along with image processing software, important information about variations in temperature can be extracted from acquired IR images. The PBL is the lowest layer of the troposphere where the atmosphere interacts with the ground surfaces. The importance of PBL lies in the fact that it provides a finite but varying volume in which pollutants can disperse. The aim of this paper is to analyze the PBL altitude and thickness variations over Iasi region using the IR imaging camera as well as its behavior from day to night and thermal processes occurring in PBL.The IR camera is a relatively novel device for remote sensing of atmospheric thermal processes from the Planetary Boundary Layer (PBL) based on measurements of the infrared radiation. Infrared radiation is energy radiated by the motion of atoms and molecules on the surface of aerosols, when their temperature is more than absolute zero. The IR camera measures directly the intensity of radiation emitted by aerosols which is converted by an imaging sensor into an electric signal, resulting a thermal image. Every image pixel that corresponds to a specific radiance is pre-processed to identify the brightness temperature. The thermal infrared imaging radiometer used in this study, NicAir, is a precision radiometer developed by Prata et al. The device was calibrated for the temperature range of 270–320 K and using a calibration table along with image processing software, important information about variations in temperature can be extracted from acquired IR images. The PBL is the lowest layer of the troposphere ...
Annals of West University of Timisoara: Physics | 2012
Mihai Nicolae Dănilă; Florin Unga; Marius Mihai Cazacu; Adrian Timofte; M. Strat; Dan Gheorghe Dimitriu; S. Gurlui
Abstract The eruption of both the Eyjafjallajokull (April 2010) and Grimsvotn (May 2011) volcanoes cumulated with two moments that gave headaches to the authorities and air traffic, and their impact on the environment upon Iasi region have been studied by means of different tools evidencing the complexity of the phenomena. In order to evidence the intrusion of pollutants in the cloud systems and to obtain additional data on the intrusion when the ash cloud was over our country, LIDAR measurements, meteorological (NMA), Satellite data (EUMETSAT), and various forecasting models (ECMWF, VAAC-Met Office, HYSPLIT) have been used. The new 3D Atmospheric Observatory Site of the Alexandru Ioan Cuza University of Iasi, as part of RADO (Romanian Atmospheric 3D Observatory) is presented, too.
Environmental Engineering and Management Journal | 2011
S. Gurlui; Adrian Timofte; Marius Mihai Cazacu; Razvan Radulescu; Livio Belegante; Dan Gheorghe Dimitriu
Journal of Quantitative Spectroscopy & Radiative Transfer | 2015
Mihai Marius Cazacu; Adrian Timofte; Florin Unga; Bogdan Albina; S. Gurlui
Environmental Engineering and Management Journal | 2013
Florin Unga; Marius Mihai Cazacu; Adrian Timofte; Diana Corina Bostan; Augustin Mortier; Dan Gheorghe Dimitriu; S. Gurlui; Philippe Goloub
Environmental Engineering and Management Journal | 2011
Catalin Nisulescu; Delia Calinoiu; Adrian Timofte; Andreea Boscornea; Camelia Talianu
Environmental Engineering and Management Journal | 2011
Marius Mihai Cazacu; Adrian Timofte; Ioan Balin; Dan Gheorghe Dimitriu; S. Gurlui
Remote Sensing of Clouds and the Atmosphere XVI | 2011
Ovidiu-Gelu Tudose; Marius-Mihai Cazacu; Adrian Timofte; Ioan Balin
Archive | 2008
Liviu Leontie; Adrian Timofte; Diana Corina Bostan; Sorin Bostan
Environmental Engineering and Management Journal | 2017
Iuliana Gabriela Breaban; Alexandru Banica; Elena Diana Bobric; Marius Mihai Cazacu; Adrian Timofte; S. Gurlui