A5010030777- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Meteorological Phenomena and Simulations
- Precipitation Measurement and Analysis
- Remote Sensing in Agriculture
- Spectroscopy and Laser Applications
- Soil Moisture and Remote Sensing
- Advanced Optical Sensing Technologies
- Air Quality Monitoring and Forecasting
- Optical Wireless Communication Technologies
- Calibration and Measurement Techniques
- Fire effects on ecosystems
- Pregnancy and preeclampsia studies
- Geochemistry and Geologic Mapping
- Icing and De-icing Technologies
- Astronomical Observations and Instrumentation
- Astronomy and Astrophysical Research
- Remote Sensing and LiDAR Applications
- Birth, Development, and Health
- Radiative Heat Transfer Studies
- Geological and Tectonic Studies in Latin America
- Adipose Tissue and Metabolism
- Earthquake Detection and Analysis
Université de Toulouse
2020-2024
Office National d'Études et de Recherches Aérospatiales
2020-2024
Instituto Andaluz de Ciencias de la Tierra
2017-2021
Universidad de Granada
2017-2020
Universidad Nacional de Colombia
2014-2019
National Nuclear Energy Commission
2019
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. This study evaluates the potential of GRASP algorithm (Generalized Retrieval Aerosol and Surface Properties) to retrieve continuous day-to-night aerosol properties, both column-integrated vertically resolved. The is focused on evaluation retrievals during an intense Saharan dust event that occurred Sierra Nevada Lidar aerOsol Profiling Experiment I (SLOPE I) field campaign. For daytime retrievals, we combined measurements ground-based lidar from EARLINET (European Research Network)...
Abstract. This study focuses on the analysis of aerosol hygroscopic growth during Sierra Nevada Lidar AerOsol Profiling Experiment (SLOPE I) campaign by using synergy active and passive remote sensors at ACTRIS Granada station in situ instrumentation a mountain (Sierra Nevada, SNS). To this end, methodology based simultaneous measurements profiles from an EARLINET multi-wavelength Raman lidar (RL) relative humidity (RH) obtained multi-instrumental approach is used. combination calibrated...
Abstract. The planetary boundary layer (PBL) is the lowermost region of troposphere and endowed with turbulent characteristics, which can have mechanical and/or thermodynamic origins. This behavior gives this great importance, mainly in studies about pollutant dispersion weather forecasting. However, instruments usually applied turbulence PBL limitations spatial resolution (anemometer towers) or temporal (instrumentation aboard an aircraft). Ground-based remote sensing, both active passive,...
Abstract. The Sierra Nevada Lidar aerOsol Profiling Experiment I and II (SLOPE II) campaigns were intended to determine the vertical structure of aerosols by remote sensing instruments test various retrieval schemes for obtaining aerosol microphysical optical properties with in situ measurements. SLOPE developed during summers 2016 2017, respectively, combining active passive measurements at stations belonging AGORA observatory (Andalusian Global ObseRvatory Atmosphere) Granada area (Spain)....
This study presents a synergistic approach to the of aerosol optical and microphysical properties measured in La Palma, Spain, during 2021 eruption Cumbre Vieja volcano (from 19 September 13 December 2021). aims characterize different phases volcanic using spatio-temporal evolution event together with mass concentration quantification four atmospheric layers. The impact plume’s pathway that reached South France is analyzed. Here, passive active remote sensors were used, namely CL51 CL61...
This work deals with the analysis of electronic subsystem a multiwavelength elastic scanning lidar. Several calibration tests are applied to Cubatão lidar placed at industrial area in State São Paulo (Brazil), order improve knowledge its performing itself and design protocols for correcting signal undesirable instrumental effects. In particular, trigger delay is assessed by means zero-bin bin-shift analog (AN) photo-counting (PC) signals, respectively. Dark current test also performed detect...
The Latin American Lidar Network (LALINET) is the aerosol lidar network operating over South America. LALINET now an operative performing a schedule of routine measurements and, currently, composed by 9 stations distributed main objective to generate consistent and statistically relevant database enhance understanding particle distribution continent its direct indirect influence on climate. creation un-biased spatiotemporal requires throughout review two pillars: instrumentation data...
Abstract. The Sierra Nevada Lidar aerOsol Profiling Experiment I and II (SLOPE II) campaigns were intended to determine the vertical structure of aerosol by remote sensing instruments test various retrieval schemes for obtaining microphysical optical properties with in-situ measurements. These deployed a set at stations include in AGORA observatory (Andalusian Global ObseRvatory Atmosphere) Granada area (Spain) along summer 2016 2017. In this work, using measurements performed high-altitude...
Background Meteorin (METRN) is a recently described neutrophic factor with angiogenic properties. This nested case-control study in longitudinal cohort that describes the serum profile of METRN during different periods gestation healthy and preeclamptic pregnant women. Moreover, we explore possible application as biomarker. Methods Findings Serum was measured by ELISA prospective 37 women, 16 mild 20 non-pregnant women menstrual cycle aim assessing levels its correlations other metabolic...
Vibrational Raman effect is widely used in atmospheric lidar systems, but rotational present several advantages. We have implemented a new setup the ultraviolet branch of an existing multiwavelength system to collect signal from lines Oxygen and Nitrogen. showed that, with appropriate filter wavelength selection, systematic error introduced particle optical properties due temperature dependence was less than 4%. With this setup, we been able retrieve aerosol extinction backscatter...
A bi-static short-range elastic backscatter micro-lidar, named Colibri, has been developed for quantitative aerosol profiling with high range and temporal resolution within the first hundred meters. The geometric (i.e., overlap) radiometric lidar constant) calibrations were performed along dark current background noise characterizations. Results of a measurement campaign have demonstrated capability our system to characterize plumes range-resolution (<10 cm) in close their emission...
Abstract. An experimental setup to study aerosol hygroscopicity is proposed based on the temporal evolution of attenuated backscatter coefficients from a ceilometer colocated with an instrumented tower equipped meteorological sensors at different heights. This used analyze 4.5-year database ACTRIS SIRTA observatory in Palaiseau (Paris, France, 2.208∘ E, 48.713∘ N; 160 m above sea level). A strict criterion-based procedure has been established identify hygroscopic growth cases using ancillary...
Abstract. 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 outbreak through remote sensing (active and passive) techniques. For that, EARLINET (European Aerosol Research LIdar NETwork) lidar AERONET (AErosol RObotic Sun-photometer Cimel CE 318 measurements are used. The sites considered are: Barcelona (41.38º N, 2.17º E), Burjassot (39.51º 0.42º...
Passive and active remote sensing techniques are well used for understanding optical microphysical characteristics of aerosol layers. Lidar has the ability to resolve stratifications complex vertical structures in atmosphere determine existence aerosols which been transported long-ranges through evaluation properties such as particle backscatter extinction coefficients, among others. CIMEL sunphotometer data (AERONET network) give information about Aerosol Optical Depth (AOD), Single...
The Latin American Lidar Network, ALINE a.k.a LALINET is a federation lidar network established in 2008 which became member of GALION/GAW program 2013. Currently the consists 9 operational stations with perspective two more to be included. today covers than 18 million Km2 and spans latitude from -52° 21° longitude -78° -47°. It should cover larger area future as planned inclusion active stations.
Abstract. The Planetary Boundary Layer (PBL) is the lowermost region of troposphere and endowed with turbulent characteristics, which can have mechanical or thermodynamic origins. Such behavior gives to this layer great importance, mainly in studies about pollutant dispersion weather forecasting. However, instruments usually applied turbulence PBL limitations spatial resolution (anemometer towers) temporal (aircrafts). In study we propose synergetic use remote sensing systems (microwave...