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GLACIORISK EUROPEAN PROJECT
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France (CEMAGREF,
ETNA,
ONF-RTM,
LGGE-CNRS), Italy (CNR-IRPI,
SMS/Nimbus), Norway (UOSLO,
NVE),
Iceland (UI
(IS)), Austria (DGGS),
Switzerland (VAW-ETHZ) |
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WELCOME TO GRIDABASE, GLACIER RISKS DATA BASE :
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GLACIER "LYS; GARSTELET"
Risk type: glacier length changes and glacier flood.
Glacier list |
Statistics
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| Type: |
Valley glacier |
| Country: |
Italy |
| Region: |
Aosta Valley |
| Massif/Ice Cap: |
Monte Rosa |
| Municipality: |
Gressoney-La-Trinité |
| Municipality code: |
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| Location: |
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| Latitude (°, cent): |
45,92 N |
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| Longitude (°, cent): |
7,84 E |
| Surface (km2): |
11,826 |
| Lenght (km): |
5,6 |
| Width (km): |
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| Min. altitude (m): |
2350 |
| Max. altitude (m): |
4530 |
| Orientation (°) |
180 |
| Slope (°) |
20 |
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EVENT: Date
//
- Date quality:9-12/12/1971 |
 |
| Type: |
Glacier flood (contain both lakes and water pocket) |
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| Description |
An internal water pocket emptied in 2-3 days, with the discharge of 480.000 m3 of water.
The water outburst from the left side of glacier, near Gnifetti alpine hut, probably from two different internal pockets: the upper one in the flat zone of the glacier behind Gnifetti hut (about 3600 m); the lower one around 3200 m of altitude. |
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Effects: |
On December 9th, at 6 PM, the flow of Lys river in Gressoney suddenly increased. The maximum was reached on December 10th (2.27 m3/s in Gressoney-St-Jean). The phenomena ended on December 12nd. |
| Deaths(#) |
0 |
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Injuried (#) |
0 |
| Note |
Already at the end of 1940's stagnant water pockets were observed at the bottom of some crevasses near Gnifetti hut. |
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DAMAGES |
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| Type: |
None |
Description: |
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BIBLIOGRAPHY |
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Aliverti G., 1960 - A proposito delle onde sui ghiacciai. Aspetti osservati sulla lingua e alla fronte del ghiacciaio del Lys (Monte Rosa). Ann. Ist. Univ. Navale, Napoli, 29, p. 115-120. |
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Aliverti G., 1970 - Si producono i surges nei ghiacciai delle Alpi italiane? Ann. Ist. Univ. Navale, Napoli, 39, p. 241-249. |
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Aliverti G., Colombin P. & De Maio A., 1973 - Sopra un "surge " di acqua accaduto sul ghiacciaio del Lys (Monte Rosa). Bolle. Comitato Glac. It. Serie II, n. 21, p. 7-18. |
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Favre B., 1972 - Attualità (rubrica) Boll. Parrocchiale di Gressoney-St-Jean e Gressoney-La-Trinité. Febbraio 1972. Ed. La Buona Novella. |
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EVENT: Date
//
- Date quality:Middle Age |
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| Type: |
Glacier length changes |
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| Description |
The glacier advance probably destroyed buildings. |
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Effects: |
Destruction of a village (?) |
| Deaths(#) |
0 |
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Injuried (#) |
0 |
| Note |
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DAMAGES |
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| Type: |
Buildings |
Description: |
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BIBLIOGRAPHY |
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Monterin U., 1915 - La leggenda della "Città di Felik" in rapporto alle oscillazioni glaciali ed alla colonizzazione tedesca sul versante meridionale del Mote Rosa. Boll. Club Alpino It. - section of Firenze. N. 4, p. 91-112 |
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