On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites
Sea-salt aerosol global models are typically evaluated against concentration observations at coastal stations that are unaffected by local surf conditions and thus considered representative of open ocean conditions. Despite recent improvements in sea-salt source functions, studies still show signifi...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20150002134 2023-05-15T13:53:27+02:00 On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites Janjic, Z. Baldasano, J. M. Spada, M. Perez Garcia-Pando, C. Jorba, O. Unclassified, Unlimited, Publicly available November 11, 2014 application/pdf http://hdl.handle.net/2060/20150002134 unknown Document ID: 20150002134 http://hdl.handle.net/2060/20150002134 Copyright, Distribution under U.S. Government purpose rights CASI Meteorology and Climatology GSFC-E-DAA-TN19643 Atmospheric Environment(ISSN 1352-2310); Volume 101; 41-48 2014 ftnasantrs 2016-03-12T23:55:10Z Sea-salt aerosol global models are typically evaluated against concentration observations at coastal stations that are unaffected by local surf conditions and thus considered representative of open ocean conditions. Despite recent improvements in sea-salt source functions, studies still show significant model errors in specific regions. Using a multiscale model, we investigated the effect of high model resolution (0.1deg x 0.1deg vs. 1deg x 1.4deg) upon sea-salt patterns in four stations from the University of Miami Network: Baring Head, Chatam Island, and Invercargill in New Zealand, and Marion Island in the sub-antarctic Indian Ocean. Normalized biases improved from +63.7% to +3.3% and correlation increased from 0.52 to 0.84. The representation of sea/land interfaces, mesoscale circulations, and precipitation with the higher resolution model played a major role in the simulation of annual concentration trends. Our results recommend caution when comparing or constraining global models using surface concentration observations from coastal stations. Other/Unknown Material Antarc* Antarctic Marion Island NASA Technical Reports Server (NTRS) Antarctic Indian New Zealand |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Janjic, Z. Baldasano, J. M. Spada, M. Perez Garcia-Pando, C. Jorba, O. On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
topic_facet |
Meteorology and Climatology |
description |
Sea-salt aerosol global models are typically evaluated against concentration observations at coastal stations that are unaffected by local surf conditions and thus considered representative of open ocean conditions. Despite recent improvements in sea-salt source functions, studies still show significant model errors in specific regions. Using a multiscale model, we investigated the effect of high model resolution (0.1deg x 0.1deg vs. 1deg x 1.4deg) upon sea-salt patterns in four stations from the University of Miami Network: Baring Head, Chatam Island, and Invercargill in New Zealand, and Marion Island in the sub-antarctic Indian Ocean. Normalized biases improved from +63.7% to +3.3% and correlation increased from 0.52 to 0.84. The representation of sea/land interfaces, mesoscale circulations, and precipitation with the higher resolution model played a major role in the simulation of annual concentration trends. Our results recommend caution when comparing or constraining global models using surface concentration observations from coastal stations. |
format |
Other/Unknown Material |
author |
Janjic, Z. Baldasano, J. M. Spada, M. Perez Garcia-Pando, C. Jorba, O. |
author_facet |
Janjic, Z. Baldasano, J. M. Spada, M. Perez Garcia-Pando, C. Jorba, O. |
author_sort |
Janjic, Z. |
title |
On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
title_short |
On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
title_full |
On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
title_fullStr |
On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
title_full_unstemmed |
On the Evaluation of Global Sea-Salt Aerosol Models at Coastal/Orographic Sites |
title_sort |
on the evaluation of global sea-salt aerosol models at coastal/orographic sites |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150002134 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Indian New Zealand |
geographic_facet |
Antarctic Indian New Zealand |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_source |
CASI |
op_relation |
Document ID: 20150002134 http://hdl.handle.net/2060/20150002134 |
op_rights |
Copyright, Distribution under U.S. Government purpose rights |
_version_ |
1766258546516688896 |