Identification

Title

Multiphase chemistry: Experimental design for coordinated measurement and modeling studies of cloud processing at a mountaintop

Abstract

In situ measurements and remote sensing retrievals of atmospheric chemistry are typically limited to sampling in clear sky. It is reasonable to assume that biased sampling has resulted in a biased understanding of atmospheric chemistry, given the following facts: 1) clouds form frequently within the troposphere, 2) updrafts associated with clouds are the primary means by which emissions from the boundary layer are lofted into the free troposphere (Ching and Alkezweeny 1986; Ching et al. 1988; Vila-Guerau de Arellano et al. 2005), and 3) cloud droplets provide a medium for aqueous-phase chemical reactions that are distinctly different from chemical processes occurring in the gas or aerosol phases (Volkamer et al. 2009; Carlton et al. 2008; Altieri et al. 2008; Perri et al. 2009). Although much research effort has historically focused on cloud-processing impacts on inorganic compounds like sulfate (Hegg and Hobbs 1982; Husain et al. 1991), many questions remain regarding organic compounds (Ervens 2015). An increasing body of experimental evidence indicates that scavenging of soluble gas-phase organic compounds (such as glyoxal and methylglyxal) and subsequent oxidation reactions within fog and cloud droplets can contribute substantially to secondary organic aerosol (SOA) mass following cloud droplet evaporation (Blando and Turpin 2000; Volkamer et al. 2006; Ervens et al. 2011). However, there remains a critical need to identify the key processes impacting organic chemical transformation taking place within clouds and to better understand the conditions under which those processes occur as well as the frequency with which they occur in the troposphere.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d70g3nm1

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

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keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

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East bounding longitude

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Temporal reference

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End position

Dataset reference date

date type

publication

effective date

2017-07-01T00:00:00Z

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Use constraints

Copyright 2017 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work.

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact