Assessment of the quality of drop size measurements using a non-dedicated present weather sensor
Drop size data from a present weather sensor have been compared to drop size data collected using a nearly co-located dedicated disdrometer. In a rainfall event that lasted more than 9 hours, with rainfall intensities up to 25 mm h-1 drop size distributions (DSDs) estimated by the two different types of instruments are found to be significantly different. The present weather sensor severely underestimates the number of large drops, which is likely due to miscalibration of the instrument. The effect of this underestimation on DSDderived bulk rainfall variables R and Z is significant. A simple linear correction for this miscalibration proves to be quite effective in removing differences between DSDs and resulting bulk rainfall variables. If DSDs estimated from the present weather sensor are to be used in analyses of rainfall spatial variation, careful recalibration is therefore essential
| Main Authors: | , |
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| Format: | Article in monograph or in proceedings biblioteca |
| Language: | English |
| Subjects: | Life Science, |
| Online Access: | https://research.wur.nl/en/publications/assessment-of-the-quality-of-drop-size-measurements-using-a-non-d |
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