Artículos publicados en revistas indexadas

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14643/222

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Atmospheric Aerosols and Air Quality in the 2022 Dry Season in Huancayo-Perú
(Universidade Federal do Rio de Janeiro, 2022) Angeles Vasquez, Roberto; Angeles Suazo, Julio Miguel; Abi Karam, Hugo; Flores Rojas, José Luis; Suarez Salas, Luis; Lavado-Meza, Carmencita; Angeles Suazo, Nataly; Boza Ccora, Fernando; De la Cruz-Cerron, Leonel; Zarate Quiñones, Rosa
This work presents results of Aerosol Optical Depth (AOD) and Direct Radiative Force (DRF) at the top of the atmosphere (TOA), obtained during monitoring campaigns carried out at the Huancayo Observatory of the Geophysical Institute of Peru (OH-IGP ) in April and August 2022. In these campaigns, a Sun CIMEL photometer was used to measure the microphysical and optical properties of aerosols at wavelengths ranging from 340 to 1020 nm, and a low-cost Purple-air sensor to quantify the concentration of material particulate (PM), in fine and coarse modes. The AOD results indicated values in the range 0.06-0.22. The daily averages of PM2.5 and PM10 did not exceed Peru’s current Environmental Quality Standards (50 μg/m3 and 100 μg/m3 ). The air quality index (AQI) calculated for PM2.5 and PM10 was classified as good. On some days during the campaigns, the air quality was classified as moderate. These results contribute to a better understanding of the current climatic conditions of the Peruvian Altiplano.
Surface Urban Heat Islands in Belo Horizonte, Manaus, Salvador Bahia Using Remote Sensing and the Weather Research and Forecasting Modeling
(Politechnika Lubelska – Lublin University of Technology, 2024) Angeles Suazo, Julio; Rosales Aylas, Georgynio; Flores Rojas, José Luis; Angeles Vasquez, Roberto; Lavado-Meza, Carmencita; De la Cruz-Cerrón, Leonel; Angeles Suazo, Nataly; Abi Karam, Hugo; Martins Moreira, Davidson
The formation of urban heat islands is one of the effects related to urbanization, as it directly affects thermal comfort. There are several methodologies for its estimation, we can highlight the Gaussian (the best known), whose limitation focuses on the analysis of Gaussian surfaces. When the surface presents cases of poly-nucleated conglomerates, another type of approach (non-Gaussian) is recommended, such as the Quantile method. Therefore, this work seeks to estimate the intensity of surface urban heat islands (SUHI) in the long term (2001–2016) with both methodologies (Gaussians and Quantiles). Based on satellite data and the Weather Research and Forecasting (WRF) meteorologi- cal simulation, both with a special resolution of 5 km, for the metropolitan areas of Belo Horizonte, Manaus and Salvador, located in Brazil. Both methods indicate the formation of intense heat islands in the hottest months in the 3 cities studied, with less monthly variation compared to the surface temperature of the Earth’s surface.

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Browsing Artículos publicados en revistas indexadas by Author "Flores Rojas, José Luis"