The Impact of MERRA-2 and CAMS Aerosol Reanalysis Data on FengYun-4B Geostationary Interferometric Infrared Sounder Simulations

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(5), P. 761 - 761

Published: Feb. 22, 2025

Aerosols significantly impact the brightness temperature (BT) in thermal infrared (IR) channels, and ignoring their effects can lead to relatively large observation-minus-background (OMB) bias radiance calculations. The accuracy of aerosol datasets is essential for BT simulations reduction. This study incorporated reanalysis from Modern-Era Retrospective Analysis Research Applications, Version 2 (MERRA-2) Copernicus Atmosphere Monitoring Service (CAMS) into Advanced Radiative Transfer Modeling System (ARMS) compare impacts on Geostationary Interferometric Infrared Sounder (GIIRS) effectiveness reducing OMB biases. results showed that, a sandstorm event 10 April 2023, incorporating total data MERRA-2 improved by 0.56 K average, surpassing CAMS’s 0.11 improvement. Dust aerosols notably impacted BT, with showing 0.17 improvement versus 0.06 due variations peak level, thickness, column mass density. Improvements sea salt carbonaceous were concentrated South China Sea Bay Bengal, where outperformed CAMS. For sulfate aerosols, excelled Bohai southern while CAMS was better northern Bengal. These findings provide guidance assimilation retrieval, emphasizing importance quality control correction systems.

Language: Английский

Evaluating Particulate Matter Mass and Count Concentrations in a Vehicle Cabin: Insights from Kuwait City

Journal of Engineering Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский