A5073159320- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Climate variability and models
- Solar Radiation and Photovoltaics
- Marine and coastal ecosystems
- Ionosphere and magnetosphere dynamics
- Aeolian processes and effects
- Fire effects on ecosystems
- Air Quality Monitoring and Forecasting
- Remote Sensing in Agriculture
- Air Quality and Health Impacts
- Water Quality Monitoring and Analysis
- Maritime Navigation and Safety
- Structural Integrity and Reliability Analysis
- Underwater Acoustics Research
- Water Quality Monitoring Technologies
- Precipitation Measurement and Analysis
- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Oceanographic and Atmospheric Processes
- Fish Ecology and Management Studies
- Climate Change and Health Impacts
Fundação de Medicina Tropical
2025
Universidade Federal do Amazonas
2025
University of Évora
2015-2024
University of Lisbon
2024
University of Silesia in Katowice
2024
Aquatic Systems (United States)
2024
Aarhus University
2024
Universidade do Porto
2022
Centro Hospitalar Lisboa Norte
2016-2021
Instituto de Ciências da Terra
2017-2021
Abstract A sensitivity test of the aerosol properties retrieval is conducted using nadir viewing instruments on board ENVISAT‐1 platform trying to reproduce natural variability field. The analysis highlights problems arising in when loading, relative humidity, and cloud coverage are simultaneously varied. Copyright © 2001 Royal Meteorological Society.
Abstract. Six months of stratospheric aerosol observations with the European Aerosol Research Lidar Network (EARLINET) from August 2017 to January 2018 are presented. The decay phase an unprecedented, record-breaking perturbation caused by wildfire smoke is reported and discussed in terms geometrical, optical, microphysical properties. Enormous amounts were injected into upper troposphere lower stratosphere over fire areas western Canada on 12 during strong thunderstorm–pyrocumulonimbus...
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,...
Aerosol properties of mineral particles in the far field an African desert dust outbreak were investigated that brought Saharan over Mediterranean different layers to Portugal. The measurements performed inside project Desert Aerosols Portugal (DARPO) which was linked Mineral Dust Experiment (SAMUM). maximum particle mass concentration about 150μgm−3 and corresponding scattering coefficient 130Mm−1 results a efficiency 0.87m2 g−1. aerosol optical depth reached values up 0.53 lidar ratio...
Abstract The contribution of clouds and aerosols to the decadal variations downward surface shortwave radiation (SSR) is a current controversial topic. This study proposes method, which based on surface‐based SSR measurements, aerosol observations, radiative transfer simulations (in cloud‐free cloud‐ aerosol‐free scenarios), evaluate cloud‐aerosol (CARE), cloud (CRE), (ARE) effects. method applied quantify role played by, separately, intense brightening observed in Iberian Peninsula. Clouds...
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...
The presence of pesticides in aquatic ecosystems poses significant risks to non-target organisms, necessitating monitoring and environmental risk assessment. This study aimed evaluate the dynamics a hydro-agricultural area with intensive agricultural practices, Mediterranean region (South Portugal). Seasonality location influenced pesticide numbers concentrations, highest levels observed during dry season. Triazines, phenylureas, organophosphates were predominant classes, terbuthylazine,...
The most recent works demonstrate that the lidar overlap function, which describes between laser beam and receiver field of view, can be determined experimentally for 355 532 nm channels using Raman signals. Nevertheless, cannot used to determine infrared channel (1064 nm) because their low intensity. In addition, many systems only provide inelastic signals with reasonable signal-to-noise ratio at nighttime. view this fact, work presents a modification method, based on comparison attenuated...
Abstract. The quality control and monitoring of surface freshwaters is crucial, since some these water masses constitute essential renewable resources for a variety purposes. In addition, changes in the composition may affect physical properties lake water, such as temperature, which turn impact interactions with lower atmosphere. use satellite remote sensing to estimate turbidity Alqueva reservoir, located south Portugal, explored. A validation study derived leaving spectral reflectance...
Abstract. We present the evaluation activity of European Aerosol Research Lidar Network (EARLINET) for quantitative assessment Level 2 aerosol backscatter coefficient product derived by Cloud-Aerosol Transport System (CATS) aboard International Space Station (ISS; Rodier et al., 2015). The study employs correlative CATS and EARLINET measurements within a 50 km distance between ground station ISS overpass as close in time possible, typically with starting or stopping performed measurement...
Wine quality is determined by the development of grape maturation, which highly dependent on climate variations. Extreme weather events are becoming more common, will affect productivity and grapes wine. Grape depends many factors, including weather, extreme influence berry size, skin thickness some key compounds, such as phenolics. In this work, ripening evolution phenolic content Vitis vinifera extracts from a vineyard in Alentejo (Portugal) were evaluated two distinct climatic years....
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...
Abstract. A better understanding of aerosol radiative properties is a crucial challenge for climate change studies. This study aims at providing complete characterization effects in different spectral ranges within the shortwave (SW) solar spectrum. For this purpose, long-term data sets from six AERONET stations located Iberian Peninsula (southwestern Europe) have been analyzed terms climatological and inter-annual changes. Aerosol information was used as input libRadtran model order to...
The study of lake–atmosphere interactions was the main purpose a 2014 summer experiment at Alqueva reservoir in Portugal. Near-surface fluxes momentum, heat and mass [water vapour (H<sub>2</sub>O) carbon dioxide (CO<sub>2</sub>)] were obtained with new Campbell Scientific's IRGASON Integrated Open-Path CO<sub>2</sub>/H<sub>2</sub>O Gas Analyser 3D Sonic Anemometer between 2 June October. On average, releasing energy form sensible latent flux during period. At end 75 d, total evaporation...
This paper analyses the influence of extreme Saharan desert dust (DD) event on shortwave (SW) and longwave (LW) radiation at EARLINET/AERONET Évora station (Southern Portugal) from 4 up to 7 April 2011. There was also some cloud occurrence in period. In this context, it is essential quantify effect presence aerosol radiative forcing. A transfer model initialized with optical properties, vertical properties meteorological atmospheric profiles. The intercomparison between instantaneous TOA...
Salinization and sodification are important processes of soil degradation affecting irrigated lands. A large proportion the global area is affected by some degree salinity or sodicity caused intensification irrigation. The increase frequency adverse climatic conditions, like high temperatures variations in precipitation patterns climate change, will potentially amplify these arid, semi-arid, Mediterranean areas. use integrated approaches for spatial temporal prediction risk salinization...