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DOI	10.5194/gmd-13-4287-2020
	Modelling mineral dust emissions and atmospheric dispersion with MADE3 in EMAC v2.54
	Beer, Christof G.; Hendricks, Johannes; Righi, Mattia; Heinold, Bernd; Tegen, Ina; Gross, Silke; Sauer, Daniel; Walser, Adrian; Weinzierl, Bernadett
通讯作者	Beer, CG
来源期刊	GEOSCIENTIFIC MODEL DEVELOPMENT
ISSN	1991-959X
EISSN	1991-9603
出版年	2020
卷号	13 期号:9 页码:4287-4303
英文摘要	It was hypothesized that using mineral dust emission climatologies in global chemistry climate models (GC-CMs), i.e. prescribed monthly-mean dust emissions representative of a specific year, may lead to misrepresentations of strong dust burst events. This could result in a negative bias of model dust concentrations compared to observations for these episodes. Here, we apply the aerosol microphysics submodel MADE3 (Modal Aerosol Dynamics model for Europe, adapted for global applications, third generation) as part of the ECHAM/MESSy Atmospheric Chemistry (EMAC) general circulation model. We employ two different representations of mineral dust emissions for our model simulations: (i) a prescribed monthly-mean climatology of dust emissions representative of the year 2000 and (ii) an online dust parametrization which calculates wind-driven mineral dust emissions at every model time step. We evaluate model results for these two dust representations by comparison with observations of aerosol optical depth from ground-based station data. The model results show a better agreement with the observations for strong dust burst events when using the online dust representation compared to the prescribed dust emissions setup. Furthermore, we analyse the effect of increasing the vertical and horizontal model resolution on the mineral dust properties in our model. We compare results from simulations with T42L31 and T63L31 model resolution (2.8 degrees x 2.8 degrees and 1.9 degrees x 1.9 degrees in latitude and longitude, respectively; 31 vertical levels) with the reference setup (T42L19). The different model versions are evaluated against airborne in situ measurements performed during the SALTRACE mineral dust campaign (Saharan Aerosol Long-range Transport and Aerosol-Cloud Interaction Experiment, June-July 2013), i.e. observations of dust transported from the Sahara to the Caribbean. Results show that an increased horizontal and vertical model resolution is able to better represent the spatial distribution of airborne mineral dust, especially in the upper troposphere (above 400 hPa). Additionally, we analyse the effect of varying assumptions for the size distribution of emitted dust but find only a weak sensitivity concerning these changes. The results of this study will help to identify the model setup best suited for future studies and to further improve the representation of mineral dust particles in EMAC-MADE3.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000572854400001
WOS关键词	SAHARAN AIR LAYER ; DESERT DUST ; TRANSPORT SECTORS ; GLOBAL IMPACT ; CLOUD CONDENSATION ; OPTICAL-PROPERTIES ; SIZE DISTRIBUTION ; AEROSOL SUBMODEL ; CLIMATE ; SENSITIVITY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326510
作者单位	[Beer, Christof G.; Hendricks, Johannes; Righi, Mattia; Gross, Silke; Sauer, Daniel; Walser, Adrian] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphere, Oberpfaffenhofen, Germany; [Heinold, Bernd; Tegen, Ina] Leibniz Inst Tropospher Res TROPOS, Leipzig, Germany; [Walser, Adrian; Weinzierl, Bernadett] Univ Vienna, Fac Phys Aerosol Phys & Environm Phys, Vienna, Austria; [Sauer, Daniel; Walser, Adrian] Ludwig Maximilians Univ Munchen, Meteorol Inst, Munich, Germany
推荐引用方式 GB/T 7714	Beer, Christof G.,Hendricks, Johannes,Righi, Mattia,et al. Modelling mineral dust emissions and atmospheric dispersion with MADE3 in EMAC v2.54[J],2020,13(9):4287-4303.
APA	Beer, Christof G..,Hendricks, Johannes.,Righi, Mattia.,Heinold, Bernd.,Tegen, Ina.,...&Weinzierl, Bernadett.(2020).Modelling mineral dust emissions and atmospheric dispersion with MADE3 in EMAC v2.54.GEOSCIENTIFIC MODEL DEVELOPMENT,13(9),4287-4303.
MLA	Beer, Christof G.,et al."Modelling mineral dust emissions and atmospheric dispersion with MADE3 in EMAC v2.54".GEOSCIENTIFIC MODEL DEVELOPMENT 13.9(2020):4287-4303.