Direct Radiative Effects of Aerosols on Numerical Weather Forecast: A Comparison of Two Aerosol Datasets in the NCEP GFS

Cheng, Anning; Yang, Fanglin

doi:10.25923/rb1n-za92

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Direct Radiative Effects of Aerosols on Numerical Weather Forecast: A Comparison of Two Aerosol Datasets in the NCEP GFS

2022
By Cheng, Anning ; Yang, Fanglin
Series: Office note (National Centers for Environmental Prediction (U.S.)) ; 507

[PDF-2.49 MB]

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Cheng, Anning ; Yang, Fanglin

Cheng, Anning ; Yang, Fanglin Less -
Corporate Authors:

National Centers for Environmental Prediction (U.S.)
NOAA Program & Office:

NWS (National Weather Service) ; NCEP (National Centers for Environmental Prediction) ; EMC (Environmental Modelling Center)

NWS (National Weather Service) ; NCEP (National Centers for Environmental Prediction) ; EMC (Environmental Modelling Center) Less -
Description:

This study compares aerosol direct radiative effects on numerical weather forecasts made by the NCEP Global Forecast Systems (GFS) with two different aerosol datasets, the OPAC and MERRA2 aerosol climatologies. The OPAC overestimates the aerosol loading from sea salt in storm track regions over the Northern and Southern Hemisphere ocean and underestimates the aerosol loading over most continents. The experiments made with MERRA2 aerosols showed improvements in GFS forecasts of aerosol optical depth (AOD) over the globe when verified against satellite retrievals.
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Aerosols Numerical Weather Forecasting
Series:

Office note (National Centers for Environmental Prediction (U.S.)) ; 507
DOI:

https://doi.org/10.25923/rb1n-za92
Document Type:

Office Note
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Public Domain
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Submitted
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urn:sha256:f1704ca70fe2148a954d05c75397e928c8f616c0f4247703be4267ed0fb5aa39
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https://repository.library.noaa.gov/view/noaa/38305/noaa_38305_DS1.pdf
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Direct Radiative Effects of Aerosols on Numerical Weather Forecast: A Comparison of Two Aerosol Datasets in the NCEP GFS

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