Comment on egusphere-2024-815 DOI Creative Commons
Jorge E. Pachón,

Mariel Opazo,

Pablo Lichtig

и другие.

Опубликована: Июнь 26, 2024

Abstract. A multi-scale modeling ensemble chain has been assembled as a first step towards an Air Quality forecasting system for Latin America. Two global and three regional models were tested compared over shared domain (120W–28W, 60S–30N) to simulate January July of 2015. Observations from local air quality monitoring networks in Colombia, Chile, Brazil, México, Ecuador Peru used model evaluation. The generally agreed with observations large cities such México City São Paulo, whereas representing smaller urban areas, Bogotá Santiago, was more challenging. For instance, during wintertime, the simulations showed discrepancies observations. No single had best performance among pollutants sites available. Ozone NO2 reproduced better than other across SO2 most difficult. ensemble, created median value individual models, evaluated well. In some cases, results mitigated extreme over- or underestimation certain demonstrating potential establish analysis forecast This study identified limitations emissions inventories, which should be addressed involvement experience researchers.

Язык: Английский

PM2.5/PM10 ratios in southernmost Brazilian cities and its relation with economic contexts and meteorological factors DOI
Jéssica El Koury Santos, Ronan Adler Tavella, Rodrigo de Lima Brum

и другие.

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(2)

Опубликована: Янв. 24, 2025

Язык: Английский

Процитировано

1

Climate Change, Forest Fires, and Territorial Dynamics in the Amazon Rainforest: An Integrated Analysis for Mitigation Strategies DOI Creative Commons
Nathalia Celis, Alejandro Casallas, Ellie Anne López-Barrera

и другие.

ISPRS International Journal of Geo-Information, Год журнала: 2023, Номер 12(10), С. 436 - 436

Опубликована: Окт. 23, 2023

Recent times have witnessed wildfires causing harm to both ecological communities and urban–rural regions, underscoring the necessity comprehend wildfire triggers assess measures for mitigation. This research hones in on Cartagena del Chairá, diving into interplay between meteorological conditions land cover/use that cultivates a conducive environment wildfires. Meteorologically, prevalence of is concentrated during boreal winter, characterized by warm dry air, strong winds, negligible precipitation. Additionally, gravitate toward river-adjacent locales housing agriculture-linked shrubs, notably northern part zone, where confluence attributes factors synergize promote fire incidents. Employing climate scenarios, we deduced elevated temperature reduced humidity augment susceptibility, while wind speed precipitation discourage their propagation across most scenarios. The trajectory warmer could instigate fire-friendly summer, indicating potential year-round susceptibility. Subsequently, via machine-learning-driven sensitivity analysis, discerned among scrutinized socio-economic variables, GINI, low educational attainment, displacement armed groups wield substantial influence occurrence. Ultimately, these findings converge shape proposed mitigation strategies amalgamate existing practices with enhancements or supplementary approaches.

Язык: Английский

Процитировано

15

Air quality modeling intercomparison and multiscale ensemble chain for Latin America DOI Creative Commons
Jorge E. Pachón,

Mariel Opazo,

Pablo Lichtig

и другие.

Geoscientific model development, Год журнала: 2024, Номер 17(20), С. 7467 - 7512

Опубликована: Окт. 28, 2024

Abstract. A multiscale modeling ensemble chain has been assembled as a first step towards an air quality analysis and forecasting (AQF) system for Latin America. Two global three regional models were tested compared in retrospective mode over shared domain (120–28° W, 60° S–30° N) the months of January July 2015. The objective this experiment was to understand their performance characterize errors. Observations from local monitoring networks Colombia, Chile, Brazil, Mexico, Ecuador Peru used model evaluation. generally agreed with observations large cities such Mexico City São Paulo, whereas representing smaller urban areas, Bogotá Santiago, more challenging. For instance, Santiago during wintertime, simulations showed discrepancies observations. No single demonstrated superior others or among pollutants sites available. In general, ozone NO2 exhibited lowest bias errors, especially Paulo City. SO2, error close 200 %, except Bogotá. ensemble, created median value all models, evaluated well. some cases, outperformed individual mitigated extreme over- underestimation. However, research is needed before concluding that path AQF This study identified certain limitations emission inventories, which should be addressed involvement experience researchers.

Язык: Английский

Процитировано

5

Evaluation of the PM2.5 over South America: Climatological Patterns and Trend Analysis DOI
Washington Luiz Félix Correia Filho, R. R. Costa, Ronan Adler Tavella

и другие.

Atmospheric Environment, Год журнала: 2024, Номер 338, С. 120800 - 120800

Опубликована: Сен. 7, 2024

Язык: Английский

Процитировано

3

Integrated Source Analysis of Particulate and Gaseous Pollutants: Seoul as an Urban Case Study DOI Creative Commons
Shin‐Young Park,

Hyeok Jang,

Jaymin Kwon

и другие.

Journal of Hazardous Materials Advances, Год журнала: 2024, Номер 17, С. 100535 - 100535

Опубликована: Ноя. 14, 2024

Язык: Английский

Процитировано

3

Sensitivity of Self‐Aggregation and the Key Role of the Free Convection Distance DOI Creative Commons
Alejandro Casallas, Adrian M. Tompkins, Caroline Müller

и другие.

Journal of Advances in Modeling Earth Systems, Год журнала: 2025, Номер 17(3)

Опубликована: Март 1, 2025

Abstract Recently, Biagioli and Tompkins (2023, https://doi.org/10.1029/2022ms003231 ) used a simple stochastic model to derive dimensionless parameter predict convective self aggregation (SA) development, which was based on the derivation of maximum free distance expected in pre‐aggregated, random state. Our goal is test further investigate this hypothesis, namely that can SA occurrence, using an ensemble 24 distinct combinations horizontal mixing, planetary boundary layer (PBL), microphysical parameterizations. We conclude key impact parameterization schemes through their control number cores relative spacing, , itself impacted by cold‐pool (CP) properties mean updraft core size. more likely when count small, while CPs modify spacing via suppression interiors triggering gust‐front convergence collisions. Each scheme emphasizes different mechanism. Subgrid‐scale turbulent mixing mainly affects determination size thus spacing. The sensitivity microphysics rain evaporation subsequent CPs, perturbations ice cloud have limited effect. Non‐local PBL promote primarily increasing inhibition inversion entrainment altering low amounts, leading fewer larger .

Язык: Английский

Процитировано

0

High-Resolution Spatial Forecasting of Hourly Air Quality: A Fast Method for a Better Representation of Industrial Plumes and Traffic Emissions Contributions DOI Creative Commons
Agnieszka Rorat,

Lucas Bouché,

Mathis Pasquier

и другие.

Atmosphere, Год журнала: 2025, Номер 16(4), С. 439 - 439

Опубликована: Апрель 9, 2025

Efficiently mapping hourly air quality at a fine scale (25 m) remains computational challenge. This difficulty is heightened when aiming to accurately capture industrial plumes and time-varying traffic emissions. paper presents method for generating pollutant concentration maps across an entire region operational applications. Our approach assumes that can be decomposed into three components: concentrations, concentrations residual “background” component. The background estimated using established fine-scale methods involving ADMS-Urban dispersion simulations. Meanwhile, the layers are derived KNN-based applied sample of enhances representation temporal variability in emissions while maintaining efficiency, making it suitable production Hauts-de-France (France).

Язык: Английский

Процитировано

0

High-resolution anthropogenic emission inventories with deep learning in northern South America DOI
Franz Pablo Antezana Lopez, Alejandro Casallas, Guanhua Zhou

и другие.

Remote Sensing of Environment, Год журнала: 2025, Номер 324, С. 114761 - 114761

Опубликована: Апрель 17, 2025

Язык: Английский

Процитировано

0

Unraveling the Global Response of Secondary Atmospheric Pollutants to Emission Reductions Imposed During the Covid-19 Pandemic DOI

Apostolos T. Koumparos,

Vlassis A. Karydis, Georgios I. Gkatzelis

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

Health impacts of air pollution in South America: recent advances and research gaps DOI

Valeria Mardoñez-Balderrama,

Néstor Y. Rojas,

Andrea Pineda-Rojas

и другие.

Current Opinion in Environmental Science & Health, Год журнала: 2025, Номер unknown, С. 100627 - 100627

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0