Near Real-Time Air Quality Forecasts Using the NASA GEOS Model

Knowland, K Emma ; Keller, Christoph ; Ott, Lesley ; Pawson, Steven ; Saunders, Emily ; Wales, Pamela ; Duncan, Bryan ; Follette-Cook, Melanie ; Liu, Junhua ; Nicely, Julie

关键词: AIR QUALITY;    FORECASTING;    ATMOSPHERIC COMPOSITION;    HIGH RESOLUTION;    EARTH OBSERVING SYSTEM (EOS);    SATELLITE OBSERVATION;    AIR POLLUTION;    OZONE;    NITROGEN OXIDES;    CARBON MONOXIDE;    PARTICULATES;   

RP-ID  :  GSFC-E-DAA-TN70165

学科分类：地球科学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

We present a new high-resolution global composition forecast system produced by NASA's Global Modeling and Assimilation Office. The NASA Goddard Earth Observing System (GEOS) model has been expanded to provide global near-real-time 5-day forecasts of atmospheric composition at unprecedented horizontal resolution of 0.25 degrees (~25 km). This composition forecast system (GEOS-CF) system combines the operational GEOS weather forecasting model with the state-of-the-science GEOS-Chem chemistry module (version 12) to provide detailed analysis of a wide range of air pollutants such as ozone, carbon monoxide, nitrogen oxides, and fine particulate matter (PM2.5). Satellite observations are assimilated into the system for improved representation of weather and smoke.