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Morphometric documentation and computer-basedvisu
alization of slope deformation and slope creepof
the Blauchbach landslide (Salzburg, Austria)
Viktor KaufmannInstitute of GeodesyGraz
University of Technology
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Contents

1. Introduction
2. Examples of Morphodynamics ("Panta Rhei")
3. Photogrammetric Measurements and Results
4. Geodetic Measurements and Results
5. Conclusions and Outlook

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1. Introduction
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Blaubachlandslide area
Villageof Krimml
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2. Examples of Morphodynamics ("Panta Rhei")
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1962 1973
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1991 - 1999
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3.1 Photogrammetric Measurements

• Aerial photographs BEV, B/WCIR, 19,300 -
  145,8001953, 1962, 1969, 1973, 1977, 1983,
  1987, 1989, 1991, 1997, 1999
• Analytical Plotter DSR-1 of Kern
• UltraScan 5000 Vexcel Imaging Austria
• DPA ImageStation Z/I Imaging
• Software ADVM(Automatic Displacement Vector
  Measurement)

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Software ADVM
Basic conceptAutomaticmeasurementofdisplaceme
ntvectorsin time seriesofaerial photographs
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Example Inner Hochebenkar rock glacier
1953rightstereo-partner
1953leftstereo-partner
1969rightstereo-partner
1969leftstereo-partner
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Example Inner Hochebenkar rock glacier
horizontalmovement
verticalmovement
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3.2 Photogrammetric Results

• Movement of two buildings
• Change of surface height
• Creep velocity- Movement of trees- Movement
  of the surface

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Movement of buildings
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1953 - 1997mean annualhorizontal movement4.2
cm/a
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Change of surface height
1953
1999
-
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Change of surface height
1953
1999
-
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Change of surface height
1953
1999
-
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Movement of trees
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1953
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1953 - 1999
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1953 - 1999
53.9 m
22.1 m
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Creep process 1969 - 1973
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Creep process 1991 - 1999
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4. Geodetic Measurements and Results

• Time period July October 2001
• Geodetic observation network GPS, geodetic
  survey
• 3 stable points close to the landslide area
• 41 observation points in the landslide area

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5. Conclusions and Outlook

• Digital photogrammetry Pro automatic
  deformation measurement feasible
  (fast and accurate, high density of points) Con
  It does not work in wooded areas. Problems in
  areas without good texture, with cast
  shadow, in areas with large surface movement
  and large topographic change,
  with CIR photographs
• 6th Framework Programme for Research of the
  EC CASSIOPEIA Climate change And Slope
  Stability Impacts on OPeration of European
  Infrastructure and Assets (University of
  Newcastle, UK)

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For further information please contact
Viktor KaufmannInstitute of GeodesyGraz
University of TechnologySteyrergasse 30, A-8010
GrazTel. 43 316 873-6336Fax 43 316
873-6337E-mail viktor.kaufmann_at_tugraz.athttp//
www.cis.tugraz.at/photo/viktor.kaufmann/
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