A5059827219- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Advanced Optical Sensing Technologies
- Optical Wireless Communication Technologies
- Meteorological Phenomena and Simulations
- Spectroscopy and Laser Applications
- Remote Sensing and LiDAR Applications
- Fire effects on ecosystems
- Air Quality Monitoring and Forecasting
- Adaptive optics and wavefront sensing
- Analytical Chemistry and Sensors
- Remote Sensing in Agriculture
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Aeolian processes and effects
- Advanced optical system design
- Laser Design and Applications
- Air Quality and Health Impacts
- Advanced Fiber Laser Technologies
- Radio Wave Propagation Studies
- Plant Surface Properties and Treatments
- Advanced Fiber Optic Sensors
- Impact of Light on Environment and Health
Universitat Politècnica de Catalunya
2016-2025
Universidad Panamericana
2023
Institut d'Estudis Espacials de Catalunya
2021
FC Barcelona
2018
Center For Remote Sensing (United States)
2008
Nortel (Canada)
2003
An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this intrusion through passive and active remote sensing techniques. For that, AERONET (AErosol RObotic NETwork) EARLINET (European Aerosol Research LIdar databases are used. The sites considered are: Barcelona (41.38°N, 2.17°E), Burjassot (39.51°N, 0.42°W), Cabo da Roca (38.78°N, 9.50°W), Évora (38.57°N,...
Abstract. In May–June 2019, smoke plumes from wildfires in Alberta, Canada, were advected all the way to Europe. To analyze evolution of and estimate amount aerosols transported Europe, retrievals spaceborne lidar CALIOP (Cloud-Aerosol LIdar with Orthogonal Polarization) used. The located help a trajectory analysis, masses retrieved observations. accuracy mass was compared ground-based lidars/ceilometer near source North America after long-range transport Overall, produced comparable...
In an optical communication link between ground station and a geostationary satellite the main problems appear in uplink are due to beam wander scintillation. Reliable methods for modeling both effects simultaneously needed provide accurate tool with which robustness of channel can be tested. Numerical tools, especially split-step method (also referred as fast-Fourier-transform propagation method), have demonstrated their ability deal during atmospheric turbulence. However, obtaining...
Abstract. Systematic measurements of dust concentration profiles at a continental scale were recently made possible by the development synergistic retrieval algorithms using combined lidar and sun photometer data establishment robust remote-sensing networks in framework Aerosols, Clouds, Trace gases Research InfraStructure Network (ACTRIS)/European Aerosol Lidar (EARLINET). We present methodology for these capabilities as tool examining performance transport models. The includes...
Abstract. We present an automatic aerosol classification method based solely on the European Aerosol Research Lidar Network (EARLINET) intensive optical parameters with aim of building a network-wide tool that could provide near-real-time typing information. The presented depends supervised learning technique and makes use Mahalanobis distance function relates each unclassified measurement to predefined type. As first step (training phase), reference dataset is set up consisting already...
Abstract. An intense and long-lasting Saharan dust outbreak crossed the Iberian Peninsula (IP) from southwest (SW) to northeast (NE) 25 March until 7 April 2021. This work aims assess optical mass contribution of both fine coarse particles along their transport. Five lidar stations were monitoring transport evolution particles, i.e. El Arenosillo/Huelva, Granada, Torrejón/Madrid Barcelona in Spain, Évora Portugal. The particular meteorological conditions determined aerosol scenario overall...
Abstract. A stand-alone lidar-based method for detecting airborne hazards aviation in near real time (NRT) is presented. polarization lidar allows the identification of irregular-shaped particles such as volcanic dust and desert dust. The Single Calculus Chain (SCC) European Aerosol Research Lidar Network (EARLINET) delivers high-resolution preprocessed data: calibrated total attenuated backscatter volume linear depolarization ratio series. From these signals, particle coefficient can be...
Three volcanic plumes were detected during the Tajogaite volcano eruptive activity (Canary Islands, Spain, September–December 2021) over Iberian Peninsula. The spatiotemporal evolution of these events is characterised by combining passive satellite remote sensing and ground-based lidar sun-photometer systems. inversion algorithm GRASP used with a suite instruments such as lidar/ceilometer from eight sites at different locations throughout Satellite observations showed that ash remained...
This paper aims to quantify the improvement obtained with a purely rotational Raman (PRR) channel over vibro-rotational (VRR) channel, used in an aerosol lidar elastic and channels, terms of signal-to-noise ratio (SNR), effective vertical resolution, absolute relative uncertainties associated retrieved optical (extinction backscatter) coefficients. Measurements were made European Aerosol Research Lidar Network/Universitat Politècnica de Catalunya (EARLINET/UPC) multi-wavelength system...
Abstract. The Global Observing System (GOS) has encountered some limitations due to a lack of worldwide real-time wind measurements. In this context, the European Space Agency (ESA) developed Aeolus satellite mission, based on ALADIN (Atmospheric Laser Doppler Instrument) lidar; mission aims obtain near-real-time retrievals at global scale. As spin-off products, instrument retrieves aerosol optical properties such as particle backscatter and extinction coefficients. work, validation...
Abstract. Mineral dust has a key role in the Earth's radiative balance, and it become significant over Iberian Peninsula (IP), where Saharan outbreaks have seemed to increase frequency intensity. This study quantifies direct effect (DRE) short-wave range (SW) during an intense persistent springtime episode IP. In particular, vertical distribution of optical properties was derived at five lidar stations, Global Atmospheric Model (GAME) used for transfer simulations. Moreover, this innovates...
Abstract. Cloud–radiation interaction still drives large uncertainties in climate models, and its estimation is key to make more accurate predictions. In this context, high-altitude cirrus clouds play a fundamental role because (1) they have high occurrence frequency globally (2) are the only cloud that can readily cool or warm atmosphere during daytime, depending on their properties. This study presents comprehensive analysis of optical scattering properties direct radiative effect based 4...
This research aims to estimate long-term aerosol radiative effects by combining radiation and Aerosol Optical Depth (AOD) observations in Barcelona, Spain. Radiative Forcing Efficiency (ARF AFE) were estimated shortwave measurements from a SolRad-Net CM-21 pyranometer (level 1.5) AERONET AOD 2), using the direct method. The AFE was derived slope between net solar at 440, 675, 879, 1020 nm, ARF computed multiplying six zenith angles (20°, 30°, 40°, 50°, 60°, 70°). Clear-sky conditions...
Abstract. The simultaneous analysis of aerosol microphysical properties profiles at different European stations is made in the framework ChArMEx/EMEP 2012 field campaign (9–11 July 2012). During and support this campaign, five lidar ground-based (Athens, Barcelona, Bucharest, Évora, Granada) performed 72 h continuous measurements collocated coincident sun-photometer measurements. Therefore it was possible to retrieve volume concentration with Lidar Radiometer Inversion Code (LIRIC). Results...
The volcanic eruption of Cumbre Vieja (La Palma Island, Spain), started on 19 September 2021 and was declared terminated 25 December 2021. A complete set aerosol measurements were deployed around the volcano within first month eruptive activity. This paper describes results observations made at Tazacorte west bank island where a polarized micro-pulse lidar deployed. analyzed two-and-a-half months (16 October–31 December) reveal that peak height lowermost strongest plume did not exceed 3 km...
Abstract. In this paper a statistical study of cirrus geometrical and optical properties based on 4 years continuous ground-based lidar measurements with the Barcelona (Spain) Micro Pulse Lidar (MPL) is analysed. First, review literature two-way transmittance method presented. This well-known inversion used to retrieve an aerosol–cloud layer between two molecular (i.e. aerosol cloud-free) regions below above, without need make any priori assumptions about their and/or microphysical...
Abstract. The short-wave (SW) direct radiative effect (DRE) during the summer 2019 heatwave produced partly by a moderate, long-lasting Saharan dust outbreak over Europe is analysed in this study. Two European sites (periods) are considered: Barcelona, Spain (23–30 June), and Leipzig, Germany (29 30 1350 km apart from each other. Major data obtained AERONET polarised Micro-Pulse Lidar (P-MPL) observations. Modelling used to describe different pathways, as observed at both sites. coarse (Dc)...
Abstract. Aerosols are one of the most important pollutants in atmosphere and have been monitored for past few decades by remote sensing situ observation platforms to assess effectiveness government-managed reduction emission policies their impact on radiative budget Earth's atmosphere. In fact, aerosols can directly modulate incoming short-wave solar radiation outgoing long-wave indirectly influence cloud formation, lifetime, precipitation. this study, we quantitatively evaluated long-term...
Abstract An improvement of the estimation mineral dust longwave, direct radiative forcing is presented. It based on recent developments that combine Sun photometer and multiwavelength lidar data to retrieve range‐resolved coarse‐ fine‐mode extinction coefficients. The forcings are calculated separately for each mode, their sum compared classical approach in which only total considered. results four cases intrusion Barcelona, Spain, show when coarse mode predominates, longwave with...