Response of Hurricane Harvey to Anthropogenic Aerosols
Abstract
With Hurricane Harvey fairly isolated over the Texas, there is a unique opportunity to examine the impact of anthropogenic aerosols on the amount of precipitation released over Houston. We firstly improve the high-dimensional numerical representation of Hurricane Harvey using an hourly cycling 3D-var data assimilation method by incorporating satellite, sondes, and surface measurements. Subsequently, to quantify the response of the tropical cyclone to aerosols, we use Weather Research and Forecasting Model (WRF) Spectral Bin Microphysics (SBM) in conjunction with GEOS-Chem TOMAS under with and without global anthropogenic emissions. Results imply that indirect impacts of aerosols on the Harvey's record-breaking rainfall can be significant which underscores the importance of precise knowledge of aerosol number and composition in weather models.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFM.A13J2587S
- Keywords:
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- 0305 Aerosols and particles;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 0345 Pollution: urban and regional;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 3305 Climate change and variability;
- ATMOSPHERIC PROCESSESDE: 3311 Clouds and aerosols;
- ATMOSPHERIC PROCESSES