GEO³ division and the AppliedGeophysics Research UnitDepartment Urband and EnvironmentalEngineeringFaculty of Engineering

GEO3 research divisionHydrogeology andenvironmental geology

Applied geophysics

Geomechanics andengineeringgeology

InfrastructuresThree laboratories– Geotechnology (rock&soils tests)– Analytical chemistry onliquid phases– Petrophysics (SIP,temperature controlled)

InfrastucturesThree Field sites• Hermalle-sous-Argenteau• Sart-Tilman• Colonster

±

±

!(

0 50 10025km±

FRANCE

GERMANY

THE NETHERLANDS

Albe

rt C

anal

Meu

se R

iver

experimental site

Meuse River

0 250 500125m

The Applied Geophysics ResearchUnit (2007)• Inverseproblems ingeophysical imaging• Dataassimilation• Environnementalgeophysics

Inverse problem and geophysicalimaging

Focusedtime-lapseinversionSyntheticbenchmark Fieldvalidation

Data assimilation• Statingofpriorgeological

uncertaintyfrompreviousstudiesusingtrainingimagesandmultiplepointgeostatistics

• Probabilisticfalsification ofstatedgeologicalpriorwithgeophysicaldatausingmutlidimensional scaling

• Inversion andconditioningwithfalsifiedpriorusingprobabilitypertubation methodorpredictionfocusedapproaches

Environnemental geophysics

100 101 102 103 104-0.05

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0.05

0.1

0.15

0.2

Frequency (Hz)

s"

(µS.

cm-1

)

R. erythropolis T902.1E.coli K12B. amyloliquefaciens GA1P. putida KT2420Water

SEM images of (a) R. erythropolis T902.1, (b) E.coli K12, (c) B. amyloliquefaciens GA1 and (d) P. putidaKT2420. Horizontal bars represent 20 µm. Only B. amyloliquefaciens forms large aggregates

Thanks

Publicationsmay be found atorbi.ulg.ac.beandmoreinfoatappliedgeophysicsulg.wordpress.com