ROMANIA: Status of nation-scale landslide susceptibility mapping and available
data. Mihai MICU. Romanian Academy, Institute of Geography. Pan-European ...
ROMANIA: Status of nation-scale landslide susceptibility mapping and available data Mihai MICU Romanian Academy, Institute of Geography Pan-European and nation-wide landslide susceptibility assessment Berlin, 16-18 October, 2012
1. Landslides in Romania
2. Authorities
987 communes:
low-to-high landslide risk
3. Legislation
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
SHALLOW, MEDIUM-SEATED LANDSLIDES • main occurrence moment – spring (slow snow melt, rain showers); • they characterize all the slope sectors; • type of movement – mainly translational; • a large morphographical spectrum; little lateral extensions; • lengths rarely passing 100 m, widths between 20-30 m, scarps up to 2 m in height.
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
DEEP-SEATED LANDSLIDES • mainly reactivations of former deluvial accumulations and peri-glaciar deposits; • main triggering factors: complex; heavy spring rainfalls, overlapping snow melt in the mountains; • lengths up and over 1 000 m, lateral extensions of more than 100m, scarps up to 20-30 m in height; • translational and rotational movements; very rich micro-morphology; • main affected formations: alternances of clays/marls with thick layers of loose and cemented sandstones.
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
COMMUNE LEVEL: Local Committee for Emergency Situations.
COUNTY LEVEL: County Inspectorate for Emergency Situations; County Committee for Emergency Situations; County Center for Intervention Coordination and Leading.
NATIONAL LEVEL: General Inspectorate for Emergency Situations; Ministries.
1. Landslides 2. Authorities 3. Legislation in Romania
LG 575/2001 LG 124/1995 HGR 382/2003 HGR 447/2003 GT-019-98
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
Landslide risk mapping for territorial planning
HG 447/2003 - Expressions like “main valleys, reaching maturity stage, with young tributaries” or “slopes with average heights and average-high steepness” - increasing subjectivity and uncertainty.
HG 382/2003 - no scale-methodology correlation; - only geotechnical and hydrogeological studies required for zoning and micro-zoning, at all levels (General, Zonal and Detailed plans), without geomorphological studies => preferential tender procedures.
1. Landslides 2. Authorities 3. Legislation in Romania
Lithology
4. Landslide inventory
5. Controlling factors maps
Geomorphic Structural
Hydrogeology
Seismicity
Silviculture
6. Landslide susceptibility
Hydrological and Climatic
Human
Terminology: Hazard map, Risk coefficient, landslide occurrence probability/potential
1. Landslides 2. Authorities 3. Legislation in Romania
Logistic Regression
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
Legislation
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
FP7 ECLISE: 2012-2013; polygons
Ph.D. thesis; Articles; Grants.
FP7 CHANGES: 2000 cases; polygons; ongoing
1. Landslides 2. Authorities 3. Legislation in Romania
DEM 30, 90 m
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
Geology, 1:200.000 (vector/raster)
6. Landslide susceptibility
Balteanu et all, 2010
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
CORINE land cover 2006 (vector/raster)
6. Landslide susceptibility
Balteanu et all, 2010
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
Balteanu et all, 2010
Precipitation: annual, seasonal, monthly, daily average/extremes
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
Balteanu et all, 2010
Seismicity (Intensity STAS 11100/1-93)
6. Landslide susceptibility
1. Landslides 2. Authorities 3. Legislation in Romania
4. Landslide inventory
5. Controlling factors maps
6. Landslide susceptibility
Landslide susceptibility
THANK YOU FOR YOUR ATTENTION! Balteanu et all, 2010
