Multiscale map analysis in alluvial fan flood-prone areas

Figures & data

Figure 1. Distribution of the main morphometric parameters in the analyzed basin/fan systems.

Figure 2. Evidence of historical flood events in the study areas. (a) and (b) Sala Consilina town (1927) (Maddalena Mts); (c) and (d) Piedimonte Matese town in 1966 (MateseMts); (e) Alife town in 1948 (MateseMts) and (f) Raviscanina town in 2002 (MateseMts). (Modified by Caiazza, 2002).

Table 1. Historical data set of past floods.

Area	Date	Locality	Fatalities and damage
			Fatalities	Buildings	Roads	Fields
Matese Mts	10–01–1581	Piedimonte Matese and surrounding villages	400	x	x
	09–26–1728	Piedimonte Matese		x	x
	11–20–1778	Alife, Piedimonte Matese		x
	10–1803	Piedimonte Matese
	1814	Piedmonte Matese
	09–1841	Piedmonte Matese, San Potito	7	x	x	x
	10–02–1948	S. Michele (Alife)			x	x
	09–13–1851	Sant'Angelo d'Alife, Alife, Piedimonte Matese
	09–13–1857	Piedimonte, San'Angelo d'Alife	90	x	x	x
	1915	Alife
	10–26–1966	Alife, Piedimonte Matese
	1968	Alife
	07–27–1972	Piedimonte Matese		x
	09–22/23–2002	Raviscanina		x		x
	10–01–1581
	09–26–1728
	11–20–1778
	10–1803
Maddalena Mts
	06–1806	Sala Consilina	30	x	x
	1814	Sala Consilina			x
	06–06–1822	Sala Consilina		x	x
	06–18–1827	Sala Consilina		x	x
	10–27–1839	Padula			x	x
	1851	Padula			x	x
	1857	Padula			x	x
	1858	Sala Consilina	22	x	x	x
	1859	Padula		x	x	x
	10–10–1867	Padula		x	x	x
	1876	Padula		x	x	x
	1881	Padula		x	x	x
	1883	Padula		x	x	x
	1900	Padula		x	x	x
	11–1927	Sala Consilina		x	x
	1858	Sala Consilina	1	x	X
	2–16–1963	Sala Consilina		x	x
	2–18–1963	Padula		x	x
	12–17–1968	Padula		x	x
	12–26–1993	Sala Consilina		x	x
	11–26–1996	Sala Consilina, Padula			x

Figure 3. Flow chart of the applied methods.

Figure 4. Examples of hydraulic critical points in Sala Consilina: (a), (b) (c) and (g) the main stream is channeled underground; (d) and (f) the stream re-emerges, but its bed has become a road; (e) the stream has a very small cross-section and is completely surrounded by houses.

Caiazza, D. (2002). I torrenti assassini del Matese Meridionale. Atti del Convegno di Studi sulle alluvioni catastrofiche recenti negli insediamenti urbani: il rischio e la prevenzione dopo il disastro di Sarno. Piedimonte Matese, 31 October 1998, Alife. Alife: Comune di Alife.

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