cleps 1.0: a new protocol for cloud aqueous phase oxidation of voc mechanisms

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ID: 153233
2017
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Abstract
A new detailed aqueous phase mechanism named the Cloud Explicit Physico-chemical Scheme (CLEPS 1.0) is proposed to describe the oxidation of water soluble organic compounds resulting from isoprene oxidation. It is based on structure activity relationships (SARs) which provide global rate constants together with branching ratios for HO abstraction and addition on atmospheric organic compounds. The GROMHE SAR allows the evaluation of Henry's law constants for undocumented organic compounds. This new aqueous phase mechanism is coupled with the MCM v3.3.1 gas phase mechanism through a mass transfer scheme between gas phase and aqueous phase. The resulting multiphase mechanism has then been implemented in a model based on the Dynamically Simple Model for Atmospheric Chemical Complexity (DSMACC) using the Kinetic PreProcessor (KPP) that can serve to analyze data from cloud chamber experiments and field campaigns.

The simulation of permanent cloud under low-NOx conditions describes the formation of oxidized monoacids and diacids in the aqueous phase as well as a significant influence on the gas phase chemistry and composition and shows that the aqueous phase reactivity leads to an efficient fragmentation and functionalization of organic compounds.
Reference Key
mouchel-vallon2017geoscientificcleps Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;C. Mouchel-Vallon;L. Deguillaume;A. Monod;H. Perroux;C. Rose;G. Ghigo;Y. Long;M. Leriche;B. Aumont;L. Patryl;P. Armand;N. Chaumerliac
Journal international journal of quantum chemistry
Year 2017
DOI
10.5194/gmd-10-1339-2017
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