Numerical modelling of pollen dispersion on the regional scale

被引：66
作者：
Helbig N. [1 ]
Vogel B. [1 ]
Vogel H. [1 ]
Fiedler F. [1 ]
机构：
[1] Inst. F. Meteorol. Klimaforschung, Forschungszentrum Karlsruhe, Universität Karlsruhe, Germany, 76021 Karlsruhe
来源：
Aerobiologia | 2004年 / 20卷 / 1期
关键词：
Numerical model; Parameterisation; Pollen dispersion; Pollen emission; Pollen resuspension; Regional scale;
D O I：
10.1023/B:AERO.0000022984.51588.30
中图分类号：
学科分类号：
摘要：
New parameterisations were developed to calculate the emission and resuspension flux of pollen grains. These new parameterisations were included in the comprehensive mesoscale model system KAMM/DRAIS. Two types of simulations were performed. In the first case, horizontally homogeneous meteorology was assumed. In this case, pollen concentration rapidly decreased with the distance from the source. In the second case, where the fully three-dimensional model was applied, atmospheric lifetime of the pollen grains increased remarkably. This was mainly caused by the vertical wind speeds induced by topographic effects. Consequently, the pollen grains could travel much larger distances until they were deposited and finally removed from the atmosphere. This is an important finding with respect to the problem of cross pollination. Due to the lack of measurements, a number of parameters had to be assumed. However, the parameterisation proposed may well serve as a starting point of a daily pollen forecast with numerical models.
引用
收藏
页码：3 / 19
页数：16
相关论文
共 63 条
[51]  
Shao Y., Leslie L.M., Wind erosion prediction over the Australian continent, J. Geophys. Res., 102, D25, pp. 30091-30105, (1997)
[52]  
Shao Y., Lu H., A simple expression for wind erosion threshold friction velocity, J. Geophys. Res., 105, D17, pp. 22437-22443, (2000)
[53]  
Solomon A.M., Predictive models of airborne pollen concentrations: Uncertainties in pollen production estimates, US/IBP Aerobiol. Program Handb. 3, pp. 99-116, (1973)
[54]  
Spitzer F., Modellierung des Beifuß-Pollengehalts der Luft Anhand Von Daten Von Bad Lippspringe und Erstellung Eines Prognoseprogramms für Den Pollenflug
[55]  
Stanley R.G., Linskens H.F., Pollen, Biology, Biochemistry, Management, (1974)
[56]  
Stix E., Grosse-Brauckmann G., Der Pollen- und Sporengehalt der Luft und seine tages- und jahreszeitlichen Schwankungen unter mitteleuropäischen Verhältnissen, Flora, 159, pp. 1-37, (1970)
[57]  
Tangermann-Dlugi G., Fiedler F., Numerische Simulation turbulenter Ausbreitungsvorgänge in der atmosphärischen Grenzschicht, Wasserwirtschaft, 73, 11, pp. 411-415, (1983)
[58]  
Treu R., Emberlin J., Pollen Dispersal in the Crops Maize (Zea mays), Oil Seed Rape (Brassica napus ssp oleifera), Potatoes (Solanum tuberosum), Sugar Beet (Beta vulgaris ssp. vulgaris) and Wheat (Triticum aestivum), A Report for the Soil Association from the National Pollen Research Unit, (2000)
[59]  
Vogel B., Fiedler F., Vogel H., Influence of topography and biogenic volatile organic compounds emission in the state of Baden-Württemberg on ozone concentrations during episodes of high air temperatures, J. Geophys. Res., 100, pp. 22907-22928, (1995)
[60]  
Vogel B., Riemer N., Vogel H., Fiedler F., Findings on NOy as an indicator for ozone sensitivity based on different numerical simulations, J. Geophys. Res., 104, pp. 3605-3620, (1999)
1234567