Title:
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Atmospheric dust modeling from meso to global scales with the online NMMB/BSC-Dust model – Part 1: model description, annual simulations and evaluation
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Author:
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Pérez García-Pando, Carlos; Haustein, Karsten; Jorba Casellas, Oriol; Janjic, Z.; Huneeus, N.; Baldasano Recio, José María; Black, T.; Basart, Sara; Nickovic, S.; Miller, R.L.; Perlwitz, J.P.; Schulz, M.; Thomson, M.
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Projectes d'Enginyeria; Universitat Politècnica de Catalunya. MTA - Modelització i Tecnologia Ambiental |
Abstract:
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Abstract. We describe and evaluate the NMMB/BSC-Dust,
a new dust aerosol cycle model embedded online within
the NCEP Non-hydrostatic Multiscale Model (NMMB).
NMMB is a further evolution of the operational Nonhydrostatic
Mesoscale Model (WRF-NMM), which together
with other upgrades has been extended from meso to global
scales. Its unified non-hydrostatic dynamical core is prepared
for regional and global simulation domains. The new
NMMB/BSC-Dust is intended to provide short to mediumrange
weather and dust forecasts from regional to global
scales and represents a first step towards the development
of a unified chemical-weather model. This paper describes
the parameterizations used in the model to simulate the dust
cycle including sources, transport, deposition and interaction
with radiation. We evaluate monthly and annual means of
the global configuration of the model against the AEROCOM
dust benchmark dataset for year 2000 including surface concentration,
deposition and aerosol optical depth (AOD), and
we evaluate the daily AOD variability in a regional domain
at high resolution covering Northern Africa, Middle East
and Europe against AERONET AOD for year 2006. The
NMMB/BSC-Dust provides a good description of the horizontal distribution and temporal variability of the dust. Daily
AOD correlations at the regional scale are around 0.6–0.7 on
average without dust data assimilation. At the global scale
the model lies within the top range of AEROCOM dust models
in terms of performance statistics for surface concentration,
deposition and AOD. This paper discusses the current
strengths and limitations of the modeling system and points
towards future improvements |
Subject(s):
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-Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental -Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica -Air quality -- Measurement -- Mathematical models -Dust -Meteorology -Aire -- Qualitat -- Mesurament -- Models matemàtics -Pols -Meteorologia |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Published version Article |
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