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AMT | Articles | Volume 13, issue 2
Atmos. Meas. Tech., 13, 747–754, 2020
https://doi.org/10.5194/amt-13-747-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 13, 747–754, 2020
https://doi.org/10.5194/amt-13-747-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Feb 2020

Research article | 17 Feb 2020

Quantifying hail size distributions from the sky – application of drone aerial photogrammetry

Joshua S. Soderholm et al.

Related subject area

Subject: Others (Wind, Precipitation, Temperature, etc.) | Technique: Remote Sensing | Topic: Instruments and Platforms
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Revised manuscript accepted for AMT
Short summary

Cited articles

Bemis, S. P., Micklethwaite, S., Turner, D., James, M. R., Akciz, S., Thiele, S. T., and Bangash, H. A.: Ground-based and UAV-Based photogrammetry: A multi-scale, high-resolution mapping tool for structural geology and paleoseismology, J. Struct. Geol., 69, 163–178, https://doi.org/10.1016/j.jsg.2014.10.007, 2014. a
Brown, T. M., Giammanco, I. M., and Kumjian, M. R.: IBHS Hail Field Research Program: 2012–2014, in: 27th Conference on Severe Local Storms, November, 2012–2014, American Meteorological Society, Madison, WI, 2014. a
Changnon, S. A., Changnon, D., Ray Fosse, E., Hoganson, D. C., Roth, R. J., and Totsch, J. M.: Effects of Recent Weather Extremes on the Insurance Industry: Major Implications for the Atmospheric Sciences, B. Am. Meteorol. Soc., 78, 425–435, https://doi.org/10.1175/1520-0477(1997)078<0425:EORWEO>2.0.CO;2, 1997. a
Cheng, H., Jiang, X., Sun, Y., and Wang, J.: Color image segmentation: advances and prospects, Pattern Recogn., 34, 2259–2281, https://doi.org/10.3346/jkms.2018.33.e6, 2001. a
Cheng, L. and English, M.: A Relationship Between Hailstone Concentration and Size, J. Atmos. Sci., 40, 204–213, https://doi.org/10.1175/1520-0469(1983)040<0204:arbhca>2.0.co;2, 1983. a
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Collecting measurements of hail size and shape is difficult due to the infrequent and dangerous nature of hailstorms. To improve upon this, a new technique called HailPixel is introduced for measuring hail using aerial imagery collected by a drone. A combination of machine learning and computer vision methods is used to extract the shape of thousands of hailstones from the aerial imagery. The improved statistics from the much larger HailPixel dataset show significant benefits.
Collecting measurements of hail size and shape is difficult due to the infrequent and dangerous...
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