Articles | Volume 21, issue 1
https://doi.org/10.5194/hess-21-267-2017
https://doi.org/10.5194/hess-21-267-2017
Research article
 | 
11 Jan 2017
Research article |  | 11 Jan 2017

Improving the precipitation accumulation analysis using lightning measurements and different integration periods

Erik Gregow, Antti Pessi, Antti Mäkelä, and Elena Saltikoff

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Cited articles

Aaltonen, J., Hohti, H., Jylhä, K., Karvonen, T., Kilpeläinen, T., Koistinen, J., Kotro, J., Kuitunen, T., Ollila, M., Parvio, A., Pulkkinen, S., Silander, J., Tiihonen, T., Tuomenvirta, H., and Vajda, A.: Strong precipitation and urban floods (Rankkasateet ja taajamatulvat RATU), Finnish Environment Institute (Suomen ympäristókeskus), Helsinki, Finland, 80 pp., 2008.
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Battan, L. J.: Radar Observation of the Atmosphere, University of Chicago Press, Chicago, USA, 1973.
Berndt, C., Rabiei, E., and Haberlandt, U.: Geostatistical merging of rain gauge and radar data for high temporal resolutions and various station density scenarios, J. Hydrology, 508, 88–101, 2014.
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Short summary
A new lightning data assimilation method has been implemented and validated within the Finnish Meteorological Institute – Local Analysis and Prediction System. Lightning data do improve the analysis when no radars are available, and even with radar data, lightning data have a positive impact on the results. We also investigate the usage of different time integration intervals: 1, 6, 12, 24 h and 7 days, where the 1 h integration time length gives the best results.