Results 71 to 80 of about 1,998 (179)
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.Abstract Accurate regional air quality modeling is crucial for the development of effective air pollution mitigation plans. Precisely simulating meteorological conditions, especially planetary boundary layer (PBL) properties, is challenging due to complex land surface conditions.
Yueqi Jiang +7 more
wiley +1 more source
Can Deep Learning Improve CMAQ Performance?
, 2019 Three-dimensional Eulerian chemical transport models such as CMAQ often report a significant model-measurement error due to uncertainties in the treatment of physical processes and require higher run-time. Machine models are more computationally efficient and are currently used widely for forecasting purposes.
Eslami, Ebrahim +3 more
openaire +1 more source
An investigation into atmospheric nitrous acid (HONO) processes in South Korea [PDF]
Atmospheric Chemistry and PhysicsNitrous acid (HONO) is a main precursor of hydroxyl radicals (OH), which contribute to the formation of numerous secondary air pollutants in the troposphere.
K. Kim +10 more
doaj +1 more source
Assessing Near‐Source Health and Equity Impacts of Liquefied Natural Gas Terminals
GeoHealth, Volume 10, Issue 4, April 2026.Abstract Growing global demand for natural gas has driven the expansion of liquefied natural gas (LNG) export terminals, which emit pollutants that can pose health risks to nearby communities. This study presents a novel modeling framework using the AMS/EPA Regulatory Model (AERMOD) to assess near‐source nitrogen dioxide (NO2) exposure, health impacts,
Xinran Wu +5 more
wiley +1 more source
Application of CMAQ at a hemispheric scale for atmospheric mercury simulations [PDF]
, 2011 Abstract. Application of a regional model to study of fate and transport of a global pollutant such as mercury in the atmosphere can be challenging and improper usage of models may lead to questionable results. The difficulties in such application stem from the fact that regional models are usually used in relatively small domains and rely heavily on ...
Pongprueksa, P. +5 more
openaire +2 more sources
Investigation of NOx emissions and NOx-related chemistry in East Asia using CMAQ-predicted and GOME-derived NO2 columns [PDF]
Atmospheric Chemistry and Physics, 2009 In this study, NO2 columns from the US EPA Models-3/CMAQ model simulations carried out using the 2001 ACE-ASIA (Asia Pacific Regional Aerosol Characterization Experiment) emission inventory over East Asia were compared with the GOME-derived NO2 columns ...
J. Y. Kim +9 more
doaj
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.Abstract The increasing frequency of toxic cyanobacterial blooms (TCBs) in freshwater lakes in recent years has been problematic, both in terms of our understanding of basic drivers, and attempts to manage them. While phosphorus has been determined to limit the growth of blooms, some cyanophytes manufacture toxins with a high nitrogen (N) demand, so ...
D. P. Swaney +5 more
wiley +1 more source
Journal of Advances in Modeling Earth Systems, 2019 Regional, state, and local environmental regulatory agencies often use Eulerian models to investigate the potential impacts on pollutant deposition and air quality from changes in land use, anthropogenic and natural emissions, and climate.
Patrick C. Campbell +2 more
doaj +1 more source
Chemical Data Assimilation with CMAQ: Continuous vs. Discrete Advection Adjoints [PDF]
, 2009 The Community Multiscale Air Quality (CMAQ) system is the Environmental Protection Agency's main modeling tool for atmospheric pollution studies. CMAQ-ADJ, the adjoint model of CMAQ, offers new capabilities such as receptor-oriented sensitivity analysis and chemical data assimilation.
Tianyi Gou, Kumaresh Singh, Adrian Sandu
openaire +1 more source
Improving the Characterization of Natural Emissions in CMAQ.
EM (Pittsburgh, Pa.)Peer ...
Kang, Daiwen +7 more
openaire +2 more sources