geovisualization, rock weathering, and terrestrial lidar in the context of rock art

Geovisualization, rock weathering, and terrestrial lidar

in the context of rock art

Brandon J. Vogt

Dissertation Research Proposal

School of Geographical Sciences

Arizona State University

Research Question

How can multiple linked views (MLVs) applied to terrestrial lidar data of rock art and surrounding weathering forms extract new insight of rock instability associated with rock art panels?

Rock Instability

Author(s) Users1=novice10=expert

Objectivity 1=subjective10=objective

Practicality1=impractical 10=practical

Fitzner et al.2004

10 9.5 1

Vogt (in progress)

8.5 8.5 9

Dorn et al. 2006 ‘RASI’

2 4 9

MethodologyDesign & Implementation1. Study locations2. Weathering features3. Lidar4. GIS workflow5. Geovisualization

Evaluation: Proof of Concept

Study Locations

Weathering Features

Lidar

x,y,z and i

sensor recordsround-trip timeof laser pulse

GIS Workflow

Geovisualization

raw tafoni signature

Geovisualization

precise tafoni signature

Geovisualization

precise fissure signature

Geovisualization

Instability Ranking

Evaluation

Conclusion

• Exploration and classification of complex, multivariate geographic phenomena are facilitated with interactive box plots and MLVs

• Management decisions related to rock art preservation are justified based on quantitative characterizations of rock surfaces

• May prove useful outside of the rock art preservation community

Publication Outlets

• Geovisualization– Cartographica, Cartography and Geographic

Information Science• Rock weathering

– Earth Surface Processes and Landforms, Physical Geography, Zeitschrift für Geomorphologie

• Supporting rock art preservation– International Newsletter on Rock Aft, Archaeometry,

American Rock Art Research Association newsletter La Pintura