DOI: 10.1016/j.atmosenv.2015.02.023
Scopus记录号: 2-s2.0-84924368069
论文题名: Identification and monitoring of Saharan dust: An inventory representative for south Germany since 1997
作者: Flentje H ; , Briel B ; , Beck C ; , Collaud Coen M ; , Fricke M ; , Cyrys J ; , Gu J ; , Pitz M ; , Thomas W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109 起始页码: 87
结束页码: 96
语种: 英语
英文关键词: Climatology
; PM10
; Saharan dust
; Trend
Scopus关键词: Calcium
; Climatology
; Deposition
; Dust
; Particles (particulate matter)
; Circulation patterns
; European legislation
; Global atmosphere watches
; Induced temperature
; PM10
; Saharan dust
; Trend
; Weather forecast models
; Weather forecasting
; calcium ion
; aerosol
; climate modeling
; climatology
; dust
; environmental monitoring
; identification method
; in situ measurement
; temperature anomaly
; trend analysis
; wet deposition
; Article
; autumn
; climate change
; controlled study
; dust
; environmental monitoring
; Germany
; limit of detection
; mass spectrometry
; particle size
; particulate matter
; priority journal
; saharan dust
; weather
; wet deposition
; winter
; Bavaria
; Germany
; Hohenpeissenberg
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: An inventory of Sahara dust (SD) events at the Hohenpeiβenberg Global Atmosphere Watch station (Germany) is presented for the period 1997-2013. Based on daily in-situ measurements, high Ca2+-ion concentrations and large particle volume concentrations at diameters dp≈0.5-7μm are inferred as indicators for days influenced by SD. The resulting SD catalogue agrees with SD time series from Schneefernerhaus, Augsburg and Jungfraujoch stations. On average, SD occurs in 5-15 SD events (SDE) per year covering about 10-60 days/yr in the mixing layer. SDE exhibit a clear seasonality with spring and early autumn maxima, and typically last for 1-3 days. SDE are equally frequent but more significant at Alpine levels due to lower background. Wet deposition of Ca2+ at the surface is little correlated (R2=0.14) with particle Ca2+ on a daily basis and yields an average annual Ca2+ immission of 0.22±0.04g/m2yr, about 40% of which is due to SD. The majority of outstanding weekly Fe and Al depositions are associated with SDE. SD contributes about 0.5±0.1μg/m3 to the total particle mass with a decreasing trend from 6% to 4% (-0.1%/yr) in the 1997-2013 period. Except from one, all threshold exceedances according to European legislation (daily PM1050μg/m3) at Hohenpeiβenberg are due to SD. Implications are discussed with respect to SD-related circulation patterns, SD-induced temperature anomalies in weather forecast models and the capability of aerosol models to capture SDE. © 2015 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81838
Appears in Collections: 气候变化事实与影响
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作者单位: Deutscher Wetterdienst, Met. Obs. Hohenpeißenberg, Albin-Schwaiger-Weg 10, Hohenpeißenberg, Germany; Universität Augsburg, Institut für Geographie, Alter Postweg 118, Augsburg, Germany; MeteoSwiss, Aerological Station, Payerne, Switzerland; Institute of Epidemiology II, Helmholtz Zentrum München, Ingolstädter Landstr. 1, Neuherberg, Germany; Environment Science Center, University of Augsburg, Universitätsstr. 1a, Augsburg, Germany; Bavarian Environment Agency, Bürgermeister-Ulrich-Str. 160, Augsburg, Germany
Recommended Citation:
Flentje H,, Briel B,, Beck C,et al. Identification and monitoring of Saharan dust: An inventory representative for south Germany since 1997[J]. Atmospheric Environment,2015-01-01,109