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GPS

Hail data
Category	Estimated size	Reference objects
no hail	-	-
graupel, snow grains	< 5 mm	-
small hail	5 ... 10 mm	lens, pea
small to medium hail	10 ... 20 mm	1 € cent coin, 20 € cent coin
medium sized hail	20 ... 35 mm	50 € cent coin, 1 € coin, walnut
large hail	35 ... 50 mm	table tennis ball, golf ball, chicken egg
huge	50 ... 70 mm	billard ball, tennis ball
enormous	> 70 mm	baseball, apple

Intensity
little	sporadic hailstones
some	ground covered by hailstones
intense	lamination

Damage
	Usually no damage, probably minor agricultural depreciation
	Agricultural damage on seedling
	Small dents or pressure marks on vehicles Significant argicultural damage Thin glas windows may break
	Deep dents and defects in vehicle paint work Windscreens damaged or punctured Sustainable agricultural damage due to damaged trunks Small to medium sized branches knocked off
	Widespread heavy damage Wind screens, roof-lights and roof tiles damaged or punctured Often sustainable agricultural losses due to damaged trunks

Detailed agricultural damage information (Optional)

Growth stage

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Your data will be submitted to:

Graz Universisty of Technology
Institute of Microwave and Photonic Engineering