27 Feb '18, 11am

Study finds global emissions of #ethane and #propane underestimated by more than 50%

Accounting for these enhanced ethane and propane emissions results in simulated surface ozone concentrations that are 5–13% higher than previously assumed in some polluted regions in Asia. The team used the OsloCTM3 model to simulate the pre-industrial (year 1750) and current (year 2011) distributions of atmospheric ethane and propane. The OsloCTM3 simulations are driven with three-hourly year 2011 meteorological forecast data from the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecast System (IFS) model. These data are 36-hour forecasts produced with 12 hours of spin-up starting from an ERA-Interim analysis at noon on the previous day. The study used data collected from 20 observatories world-wide. The researchers showed that observations of pre-industrial and present-day ethane and propane can be reproduced in simulations with a detailed atmos...

Full article: http://www.greencarcongress.com/2018/02/20180227-nmhc.html

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