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| Titel |
Atmospheric dust modeling from meso to global scales with the online NMMB/BSC-Dust model – Part 1: Model description, annual simulations and evaluation |
| VerfasserIn |
C. Pérez, K. Haustein, Z. Janjic, O. Jorba, N. Huneeus, J. M. Baldasano, T. Black, S. Basart, S. Nickovic, R. L. Miller, J. P. Perlwitz, M. Schulz, M. Thomson |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 24 ; Nr. 11, no. 24 (2011-12-21), S.13001-13027 |
| Datensatznummer |
250010291
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| Publikation (Nr.) |
 copernicus.org/acp-11-13001-2011.pdf |
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| Zusammenfassung |
| 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 Non-hydrostatic 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 medium-range
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. |
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