Summary: Atmospheric Environment 42 (2008) 3419­3436
Modeling atmospheric transport and fate of ammonia in
North Carolina--Part I: Evaluation of meteorological and
chemical predictions
Shiang-Yuh Wua,1
, Srinath Krishnanb
, Yang Zhangb,Ã, Viney Anejab
a
Department of Environmental Quality, Richmond, VA, USA
b
North Carolina State University, Raleigh, NC, USA
Received 19 September 2006; received in revised form 13 April 2007; accepted 14 April 2007
Abstract
The atmospheric transport and fate of ammonia (NH3) depend on both meteorological and chemical conditions once it
is emitted into the atmosphere. The largest source contributing to NH3 emission is the agricultural production, in
particular animal operation, in North Carolina (NC). In this study, three-dimensional numerical meteorological and air
quality models are applied to study the transport and fate of NH3 in the atmosphere in an area in southeast US centered
over NC. One summer and one winter month simulations with a 4-km horizontal grid were conducted to simulate the
meteorological and chemical environments for the transport and transformation of the reduced nitrogen, NHx
( ¼ NH3+NH4

Source: Aneja, Viney P. - Department of Marine, Earth and Atmospheric Sciences, North Carolina State University

Collections: Environmental Sciences and Ecology; Geosciences