Rainfall characteristics in León in 2016 and 2017

1. del Blanco Alegre, Carlos
2. Oduber, Fernanda
3. Calvo Gordaliza, Ana Isabel
4. Castro, Amaya
5. Martínez-Fernández, Adrían
6. Sainz-Villegas, Samuel
7. Fraile Laiz, Roberto

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More publications in: Acta de las Jornadas Científicas de la Asociación Meteorológica Española

Abstract

Nowadays, air pollution is one of the principal risk to human health and rain is the main sink of aerosol particles in the atmosphere, since it is the main process to mitigate pollution. Furthermore, the study of rainfall characteristics is crucial because it can provide information about present and future risks in an area, related to rain amount or intensity. In order to know the characteristics of the precipitation in the city of León, rain was sampled during 2016 and 2017 using a Laser Precipitation Monitor (LPM) of Thies Clima which registered drops between 0.125 and 8 mm in 22 channels. Furthermore, a Circulation Weather Types (CWTs) classification was carried out based on Lamb (1972), to identify the weather type related to a peculiar synoptic situation in days with rain. Focusing on rain characteristics in the city of León, 3.23·109 drops m-2 have fallen in 2016 with a mean size of 0.36±0.20 mm and 1.06·109 drops m-2 in 2017 with a mean size of 0.35±0.19 mm. The rain characteristic according to Lamb Weather Types during rain events will be analyzed.

Bibliographic References

• Calvo, A.I., Pont, V., Olmo, F.J., Castro, A., Alados-Arboledas, L., Vicente, A.M., Fernández-Raga, M. and Fraile, R., 2012: Air masses and weather types: A useful tool for characterizing precipitation chemistry and wet deposition. Aerosol Air Qual. Res., 12, 856–878. doi:10.4209/aaqr.2012.03.0068
• Trigo, R.M. and DaCamara, C.C. 2000: Circulation weather types y their influence on the precipitation regime in Portugal. Int. J. Clim., 20, 1559–1581. doi:10.1002/1097-0088(20001115)20
• Zikova, N. and Zdimal, V. 2016: Precipitation scavenging of aerosol particles at a rural site in the Czech Republic. Tellus B., 68, 1–14. doi:10.3402/tellusb.v68.27343

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