Development and evaluation of an advanced National Air Quality Forecasting Capability using the NOAA Global Forecast System version 16
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Published:2022-04-21
Issue:8
Volume:15
Page:3281-3313
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ISSN:1991-9603
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Container-title:Geoscientific Model Development
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language:en
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Short-container-title:Geosci. Model Dev.
Author:
Campbell Patrick C.ORCID, Tang YouhuaORCID, Lee Pius, Baker Barry, Tong Daniel, Saylor Rick, Stein Ariel, Huang Jianping, Huang Ho-Chun, Strobach Edward, McQueen Jeff, Pan LiORCID, Stajner IvankaORCID, Sims Jamese, Tirado-Delgado Jose, Jung Youngsun, Yang Fanglin, Spero Tanya L.ORCID, Gilliam Robert C.
Abstract
Abstract. A new dynamical core, known as the Finite-Volume Cubed-Sphere (FV3) and
developed at both NASA and NOAA, is used in NOAA's Global Forecast System
(GFS) and in limited-area models for regional weather and air quality
applications. NOAA has also upgraded the operational FV3GFS to version 16
(GFSv16), which includes a number of significant developmental advances to the
model configuration, data assimilation, and underlying model physics,
particularly for atmospheric composition to weather feedback. Concurrent
with the GFSv16 upgrade, we couple the GFSv16 with the Community Multiscale
Air Quality (CMAQ) model to form an advanced version of the National Air
Quality Forecasting Capability (NAQFC) that will continue to protect human and
ecosystem health in the US. Here we describe the development of the
FV3GFSv16 coupling with a “state-of-the-science” CMAQ model version 5.3.1.
The GFS–CMAQ coupling is made possible by the seminal version of the
NOAA-EPA Atmosphere–Chemistry Coupler (NACC), which became a major piece of the next
operational NAQFC system (i.e., NACC-CMAQ) on 20 July 2021. NACC-CMAQ has a
number of scientific advancements that include satellite-based data
acquisition technology to improve land cover and soil characteristics and
inline wildfire smoke and dust predictions that are vital to predictions of
fine particulate matter (PM2.5) concentrations during hazardous
events affecting society, ecosystems, and human health. The GFS-driven
NACC-CMAQ model has significantly different meteorological and chemical
predictions compared to the previous operational NAQFC, where evaluation of
NACC-CMAQ shows generally improved near-surface ozone and PM2.5 predictions and diurnal patterns, both of which are extended to a 72 h
(3 d) forecast with this system.
Funder
National Oceanic and Atmospheric Administration
Publisher
Copernicus GmbH
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