Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites

One of the major sources of uncertainty in model estimates of the global sea-salt aerosol distribution is the emission parameterization. We evaluate a new sea-salt aerosol life cycle module coupled to the online multiscale chemical transport model NMMB/BSC-CTM. We compare 5 yr global simulations usi...

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Authors: Spada, Michele, Jorba Casellas, Oriol|||0000-0001-5872-0244, Pérez García-Pando, Carlos|||0000-0002-4456-0697, Janjic, Z, Baldasano Recio, José María|||0000-0002-6191-635X
Format: article
Publication Date:2013
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/22298
Online Access:https://hdl.handle.net/2117/22298
https://dx.doi.org/10.5194/acp-13-11735-2013
Access Level:Open access
Keyword:Air quality -- Measurement -- Mathematical models
Mineral dust
Meteorology
Atmospheric aerosols
convective adjustment scheme
nmmb/bsc-dust model
radiative-transfer
optical-thickness
climate
parameterization
simulations
satellite
aeronet
mass
Aire -- Qualitat -- Mesurament -- Models matemàtics
Pols mineral
Meteorologia
Aerosols atmosfèrics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
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network_acronym_str ES
network_name_str España
repository_id_str
spelling Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sitesSpada, MicheleJorba Casellas, Oriol|||0000-0001-5872-0244Pérez García-Pando, Carlos|||0000-0002-4456-0697Janjic, ZBaldasano Recio, José María|||0000-0002-6191-635XAir quality -- Measurement -- Mathematical modelsMineral dustMeteorologyAtmospheric aerosolsconvective adjustment schemenmmb/bsc-dust modelradiative-transferoptical-thicknessclimateparameterizationsimulationssatelliteaeronetmassAire -- Qualitat -- Mesurament -- Models matemàticsPols mineralMeteorologiaAerosols atmosfèricsÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambientalÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèricaOne of the major sources of uncertainty in model estimates of the global sea-salt aerosol distribution is the emission parameterization. We evaluate a new sea-salt aerosol life cycle module coupled to the online multiscale chemical transport model NMMB/BSC-CTM. We compare 5 yr global simulations using five state-of-the-art sea-salt open-ocean emission schemes with monthly averaged coarse aerosol optical depth (AOD) from selected AERONET sun photometers, surface concentration measurements from the University of Miami's Ocean Aerosol Network, and measurements from two NOAA/PMEL cruises (AEROINDOEX and ACE1#. Model results are highly sensitive to the introduction of sea-surface-temperature #SST#-dependent emissions and to the accounting of spume particles production. Emission ranges from 3888 Tg yr#-1# to 8114 Tg yr#-1), lifetime varies between 7.3 h and 11.3 h, and the average column mass load is between 5.0 Tg and 7.2 Tg. Coarse AOD is reproduced with an overall correlation of around 0.5 and with normalized biases ranging from +8.8% to +38.8 %. Surface concentration is simulated with normalized biases ranging from -9.5% to +28% and the overall correlation is around 0.5. Our results indicate that SST-dependent emission schemes improve the overall model performance in reproducing surface concentrations. On the other hand, they lead to an overestimation of the coarse AOD at tropical latitudes, although it may be affected by uncertainties in the comparison due to the use of all-sky model AOD, the treatment of water uptake, deposition and optical properties in the model and/or an inaccurate size distribution at emission.20132013-01-0120142014-03-19journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/22298https://dx.doi.org/10.5194/acp-13-11735-2013reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/222982026-05-27T15:37:01Z
dc.title.none.fl_str_mv Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
title Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
spellingShingle Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
Spada, Michele
Air quality -- Measurement -- Mathematical models
Mineral dust
Meteorology
Atmospheric aerosols
convective adjustment scheme
nmmb/bsc-dust model
radiative-transfer
optical-thickness
climate
parameterization
simulations
satellite
aeronet
mass
Aire -- Qualitat -- Mesurament -- Models matemàtics
Pols mineral
Meteorologia
Aerosols atmosfèrics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
title_short Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
title_full Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
title_fullStr Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
title_full_unstemmed Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
title_sort Modeling and evaluation of the global sea-salt aerosol distribution: sensitivity to emission schemes and resolution effects at coastal/orographic sites
dc.creator.none.fl_str_mv Spada, Michele
Jorba Casellas, Oriol|||0000-0001-5872-0244
Pérez García-Pando, Carlos|||0000-0002-4456-0697
Janjic, Z
Baldasano Recio, José María|||0000-0002-6191-635X
author Spada, Michele
author_facet Spada, Michele
Jorba Casellas, Oriol|||0000-0001-5872-0244
Pérez García-Pando, Carlos|||0000-0002-4456-0697
Janjic, Z
Baldasano Recio, José María|||0000-0002-6191-635X
author_role author
author2 Jorba Casellas, Oriol|||0000-0001-5872-0244
Pérez García-Pando, Carlos|||0000-0002-4456-0697
Janjic, Z
Baldasano Recio, José María|||0000-0002-6191-635X
author2_role author
author
author
author
dc.subject.none.fl_str_mv Air quality -- Measurement -- Mathematical models
Mineral dust
Meteorology
Atmospheric aerosols
convective adjustment scheme
nmmb/bsc-dust model
radiative-transfer
optical-thickness
climate
parameterization
simulations
satellite
aeronet
mass
Aire -- Qualitat -- Mesurament -- Models matemàtics
Pols mineral
Meteorologia
Aerosols atmosfèrics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
topic Air quality -- Measurement -- Mathematical models
Mineral dust
Meteorology
Atmospheric aerosols
convective adjustment scheme
nmmb/bsc-dust model
radiative-transfer
optical-thickness
climate
parameterization
simulations
satellite
aeronet
mass
Aire -- Qualitat -- Mesurament -- Models matemàtics
Pols mineral
Meteorologia
Aerosols atmosfèrics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
description One of the major sources of uncertainty in model estimates of the global sea-salt aerosol distribution is the emission parameterization. We evaluate a new sea-salt aerosol life cycle module coupled to the online multiscale chemical transport model NMMB/BSC-CTM. We compare 5 yr global simulations using five state-of-the-art sea-salt open-ocean emission schemes with monthly averaged coarse aerosol optical depth (AOD) from selected AERONET sun photometers, surface concentration measurements from the University of Miami's Ocean Aerosol Network, and measurements from two NOAA/PMEL cruises (AEROINDOEX and ACE1#. Model results are highly sensitive to the introduction of sea-surface-temperature #SST#-dependent emissions and to the accounting of spume particles production. Emission ranges from 3888 Tg yr#-1# to 8114 Tg yr#-1), lifetime varies between 7.3 h and 11.3 h, and the average column mass load is between 5.0 Tg and 7.2 Tg. Coarse AOD is reproduced with an overall correlation of around 0.5 and with normalized biases ranging from +8.8% to +38.8 %. Surface concentration is simulated with normalized biases ranging from -9.5% to +28% and the overall correlation is around 0.5. Our results indicate that SST-dependent emission schemes improve the overall model performance in reproducing surface concentrations. On the other hand, they lead to an overestimation of the coarse AOD at tropical latitudes, although it may be affected by uncertainties in the comparison due to the use of all-sky model AOD, the treatment of water uptake, deposition and optical properties in the model and/or an inaccurate size distribution at emission.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01
2014
2014-03-19
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/22298
https://dx.doi.org/10.5194/acp-13-11735-2013
url https://hdl.handle.net/2117/22298
https://dx.doi.org/10.5194/acp-13-11735-2013
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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