Introducing 3-D computer Introducing 3-D computer visualization models in an Earth visualization models in an Earth Science undergraduate mapping Science undergraduate mapping

training classtraining class

Ken McCaffreyKen McCaffrey

University of DurhamUniversity of Durham

Project outcomesProject outcomesA GEES small Learning and Teaching award3-D ArcView™ and gOcad™ models of the

Assynt mapping regionAn evaluation of the effectiveness of the 3-D

model for fieldwork teachingModification of models in light of staff and

student feedbackA resource that can be useful to other

institutions given the significance of the Moine Thrust zone

The FieldcourseThe Fieldcourse

Loch Assynt

Mapping Area

• 8 day, Level 2 field-course

• Main mapping training course for Geologists

MethodologyMethodology Construct digital terrain model (DTM) using available

topographic data (OS Digimap data) Drape existing field data and Landsat/Aerial photos onto the

DTM Include new DGPS-located contact information mapped

using field-GIS on hand-held computer Use gOcad software create surfaces that represent the

geological structure Develop demonstration exercises for field trip During the field class, in the evenings, the model

progressively revealed to students in step with their own mapping on a lap-top with a data projector

Differential GPS mappingDifferential GPS mapping

• Map boundaries to sub -1m accuracy

• Data direct into GIS in field

Test Model #1Test Model #1

A test modelA test model

Test Model #2Test Model #2

What’s nextWhat’s next

• Improved imagery

• Boundaries mapped in detail

• Surfaces created in gOcad™

• Finalised model(s) by end-summer

• Implement on field course (end Sept)

• Improve model based on feedback

e-MapScholar – a resource containing tools, learning and teaching materials that use geo-spatial data, including Digimap data

Invited to provide an Earth Science Case Study In place of ‘Bristol Project’ in Field Studies module, will introduce

a ‘Lake District Digital Geology Project’ Learning outcomes

Construct a digital geological model of the Lake District using OS, Construct a digital geological model of the Lake District using OS, geological and geophysical datageological and geophysical data

Interpret features of the modelInterpret features of the model Gain an appreciation of the geological structure of the Lake District Gain an appreciation of the geological structure of the Lake District

before their field tripbefore their field trip