elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury species

Bieser, Johannes and Slemr, Franz and Ambrose, Jesse and Brenninkmeijer, C.A. and Brooks, Steve and Dastoor, Ashu and DeSimone, Francesco and Ebinghaus, Ralf and Gencarelli, Christian N. and Geyer, Beate and Gratz, Lynne and Hedgecock, Jan M. and Jaffe, Daniel and Kelley, Paul and Lin, Che-Jen and Jaegle, Lyatt and Matthias, Volker and Ryjkov, Andrej and Selin, Noelle and Song, Shaojie and Travnikov, Oleg and Weigelt, A. and Luke, Winston and Ren, Xinrong and Zahn, Andreas and Yang, Xin and Zhu, Yun and Pirrone, Nicola (2017) Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury species. Atmospheric Chemistry and Physics (ACP), 17, pp. 6925-6955. Copernicus Publications. DOI: 10.5194/acp-17-6925-2017 ISSN 1680-7316

[img] PDF
16MB

Official URL: http://www.atmos-chem-phys.net/17/6925/2017/

Abstract

Atmospheric chemistry and transport of mercury play a key role in the global mercury cycle. However, there are still considerable knowledge gaps concerning the fate of mercury in the atmosphere. This is the second part of a model intercomparison study investigating the impact of atmospheric chemistry and emissions on mercury in the atmosphere. While the first study focused on ground-based observations of mercury concentration and deposition, here we investigate the vertical and interhemispheric distribution and speciation of mercury from the planetary boundary layer to the lower stratosphere. So far, there have been few model studies investigating the vertical distribution of mercury, mostly focusing on single aircraft campaigns. Here, we present a first comprehensive analysis based on various aircraft observations in Europe, North America, and on intercontinental flights. The investigated models proved to be able to reproduce the distribution of total and elemental mercury concentrations in the troposphere including interhemispheric trends. One key aspect of the study is the investigation of mercury oxidation in the troposphere. We found that different chemistry schemes were better at reproducing observed oxidized mercury patterns depending on altitude. High concentrations of oxidized mercury in the upper troposphere could be reproduced with oxidation by bromine while elevated concentrations in the lower troposphere were better reproduced by OH and ozone chemistry. However, the results were not always conclusive as the physical and chemical parameterizations in the chemistry transport models also proved to have a substantial impact on model results.

Item URL in elib:https://elib.dlr.de/113234/
Document Type:Article
Title:Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury species
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bieser, JohannesDLR, IPAUNSPECIFIED
Slemr, FranzMPI Chemie, MainzUNSPECIFIED
Ambrose, JesseUniversity of Washington-Bothell, USUNSPECIFIED
Brenninkmeijer, C.A.MPI Chemie, MainzUNSPECIFIED
Brooks, SteveNOAA, USUNSPECIFIED
Dastoor, AshuECCC, CanadaUNSPECIFIED
DeSimone, FrancescoCNR, ItalyUNSPECIFIED
Ebinghaus, RalfHelmholtz-Zentrum GeesthachtUNSPECIFIED
Gencarelli, Christian N.CNR-institute of atmospheric pollution research, Rende, ItalyUNSPECIFIED
Geyer, BeateHelmholtz-Zentrum GeesthachtUNSPECIFIED
Gratz, LynneColorado College, USUNSPECIFIED
Hedgecock, Jan M.CNR-institute of atmospheric pollution research, Rende, ItalyUNSPECIFIED
Jaffe, DanielUniversity of Washington-Bothell, USUNSPECIFIED
Kelley, PaulNOAA, USUNSPECIFIED
Lin, Che-JenLamar University, Texas, USUNSPECIFIED
Jaegle, LyattUniversity of Washington, USUNSPECIFIED
Matthias, VolkerHelmholtz-Zentrum GeesthachtUNSPECIFIED
Ryjkov, AndrejECCC, CanadaUNSPECIFIED
Selin, NoelleMIT, USUNSPECIFIED
Song, ShaojieMIT, USUNSPECIFIED
Travnikov, OlegMeteorological synthesizing centre, Moscow, RussiaUNSPECIFIED
Weigelt, A.Helmholtz-Zentrum GeesthachtUNSPECIFIED
Luke, WinstonNOAA, USUNSPECIFIED
Ren, XinrongNOAA, USUNSPECIFIED
Zahn, AndreasKIT, KarlsruheUNSPECIFIED
Yang, XinBritish Antarctic Survey, UKUNSPECIFIED
Zhu, YunSouth Chine University of Technology, CNUNSPECIFIED
Pirrone, NicolaCNR-institute of atmospheric pollution research, Roma, ItalyUNSPECIFIED
Date:2017
Journal or Publication Title:Atmospheric Chemistry and Physics (ACP)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:17
DOI :10.5194/acp-17-6925-2017
Page Range:pp. 6925-6955
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:mercury, transport modelling, aircraft measurements
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:17 Jul 2017 10:29
Last Modified:02 May 2019 13:59

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.