278 documents found, page 1 of 28
Editorial: Women in environmental informatics and remote sensing
Dąbrowska, D.; Rivas-Casado, M; Costa, Maria JoãoThe Research Topic entitled “Women in Environmental Informatics and Remote Sensing” was created with women researchers in mind. It is estimated that fewer than 30% of researchers in the world are women. It aimed to encourage women researchers to submit the results of their research and present them in Frontiers in Environmental Sciences. The Research Topic of the journal had three editors: Monica Rivas Casado f...
AI-Driven Estimation of Aerosol Optical Thickness using Remote Sensing and Mete...
Marinho, David; Gonçalves, Teresa; Costa, Maria JoãoAccurately estimating Aerosol Optical Thickness (AOT) is essential for understanding atmospheric aerosol dynamics and their climatic effects. In this study, a machine learning model was developed using the Random Forest (RF) algorithm, to estimate AOT at 500 nm. The reference AOT data are obtained from the AERONET network, using data from the Évora Atmospheric Sciences Observatory (Portugal), ensuring high-qual...
Relatório Técnico
Cordoba, Carmen; Costa, Maria JoãoThe implications of aerosols and clouds in the climate is one of the most important research fields in atmospheric sciences (IPCC, 2023; https://doi.org/10.1017/9781009157896). This is mainly due to the fact that there are still large uncertainties in the radiative forcing (RF) of both aerosols and clouds, especially the indirect RF associated with the dynamics of aerosol-cloud interactions (ACI). In fact, the ...
Impact of previous exposure to fraud on Portuguese consumer perceptions and att...
Sousa, Isabel; Costa, Maria João; Moura, Ana Pinto de; Teixeira, J. A.; Cunha, Luís MiguelConcerns over food fraud continued to plague the food supply chain. Within the various definitions of food fraud, in the scope of Regulation (EU) 2019/1715, food fraud is referred to as a non-compliance concerning any suspected intentional action by businesses or individuals, to deceive purchasers and gain undue advantage therefrom, in violation of the rules referred to in Article 1(2) of Regulation (EU) 2017/6...
Trends in land cover and in pollen concentration of Quercus genus in Alentejo, ...
Galveias, Ana; Duarte, Ediclê; Raposo, Mauro; Costa, Maria João; Costa, Ana; Antunes, CéliaMediterranean forests dominated by Quercus species are of great ecological and economic value. The Quercus pollen season, peaking in April, varies in concentration due to geographical and climatic factors and has a remarkable allergenic potential. This study investigates Quercus trends in the Alentejo region of Portugal and examines the influence of meteorological parameters on DPC, PSD and SPIn, as well as the...
Four Years of Atmospheric Boundary Layer Height Retrievals Using COSMIC-2 Satel...
Garnés-Morales, Ginés; Costa, Maria João; Bravo-Aranda, Juan Antonio; Granados-Muñoz, Maria José; Salgueiro, Vanda; Abril-Gago, JesusThis work aimed to study the atmospheric boundary layer height (ABLH) from COSMIC-2 refractivity data, endeavoring to refine existing ABLH detection algorithms and scrutinize the resulting spatial and seasonal distributions. Through validation analyses involving different ground-based methodologies (involving data from lidar, ceilometer, microwave radiometers, and radiosondes), the optimal ABLH determination re...
Hydrometeorological dataset (2018–2023) from the largest Portuguese reservoir: ...
Rodrigues, Gonçalo; Purificação, Carolina; Potes, Miguel; Costa, Maria João; Salgado, RuiThe databases provided for two meteorological stations installed in the Alqueva reservoir (the largest artificial lake in Europe), one located on a floating platform and the other on the shore (approximately 1 km away in a straight line), cover a period of 6 years, from 2018 to 2023. The data available are, the hourly accumulated precipitation as well as the hourly averages of surface water temperature (0.25 m ...
Moisture Content Vegetation Seasonal Variability Based on a Multiscale Remote S...
Santos, Filippe; Rodrigues, Gonçalo; Potes, Miguel; Couto, Flavio; Costa, Maria João; Dias, Susana; Monteiro, Maria José; Ribeiro, Nuno; Salgado, RuiWater content is one of the most critical characteristics in plant physiological development. Therefore, this information is a crucial factor in determining the water stress conditions of vegetation, which is essential for assessing the wildfire risk and land management decision-making. Remote sensing can be vital for obtaining information over large, limited access areas with global coverage. This is important...
Assessment of Water Surface Reflectance and Optical Water Types Over Two Decade...
Rodrigues, Gonçalo; Potes, Miguel; Costa, Maria JoãoThis study focuses on comparing surface reflectances and optical water types (OWTs) obtained in Alqueva reservoir, located in the Alentejo region (Portugal), over a period of two decades (2003–2022) using four datasets: the moderate resolution imaging spectroradiometer (MODIS), themedium-resolution imaging spectrometer, the ocean and land color instrument aboard Sentinel-3, and the multispectral instrument aboa...
Impact of monthly air pollution and weather conditions on cardiorespiratory mor...
Duarte, Ediclê de Souza Fernandes; Lucio, Paulo Sérgio; Lígia, Henriques-Rodrigues; Costa, Maria JoãoThis study analyses cardiorespiratory mortality rates (CARDIO) and their association with air pollutants - particulate matter with aerodynamic diameters lower of equal to 10 or 2.5 (μm) (PM10, PM2.5), carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3) - and meteorological variables (temperature, humidity, wind speed, direction) in the Lisbon (LMA) and Porto (PMA) metropolitan areas from 2011 to 2020. Mont...