Auken, Esben

Bauer-Gottwein, Peter

Christensen, Steen

Foged, Nikolaj

Høyer Christensen, Anne-Sophie

Marker, Pernille Aabye

Vilhelmsen, Troels

Wernberg, Thomas

Online Research Database In Technology

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Downloaded from orbit.dtu.dk on: Nov 08, 2017Mere end struktur - moderne anvendelse af højopløselig airborne geofysik ihydrologiske modellerVilhelmsen, Troels; Marker, Pernille Aabye; Foged, Nikolaj; Wernberg, Thomas; Høyer Christensen,Anne-Sophie; Bauer-Gottwein, Peter; Christensen, Steen; Auken, EsbenPublication date:2015Document VersionPublisher's PDF, also known as Version of recordLink back to DTU OrbitCitation (APA):Vilhelmsen, T., Marker, P. A., Foged, N., Wernberg, T., Høyer Christensen, A-S., Bauer-Gottwein, P., ... Auken,E. (2015). Mere end struktur - moderne anvendelse af højopløselig airborne geofysik i hydrologiske modeller[2D/3D (physical products)]. Hydrologidag 2015 , Odense, Denmark, 29/10/2015Mere end struktur Troels Vilhelmsen, AU; Pernille Marker, DTU; Nikolaj Foged, AU Thomas Wernberg, Alectia; Anne-Sophie Høyer Christensen, GEUS Peter Bauer-Gottwein, DTU; Steen Christensen, AU; Esben Auken, AU - moderne anvendelse af højopløselig airborne geofysik i hydrologiske modeller Strukturel usikkerhed… Autogenerering af hydrostratigrafiske modeller fra SkyTEM data og boringsbeskrivelser Kan denne metoder anvendes til evaluering af strukturel usikkerhed CF-Resistivity clustering  Input - Resistivity model - Borehole lithology Clay fraction  3D cluster model Input - Clay fraction model - Resistivity model Input - Cluster model - Potential head - Stream discharge Hydrological model calibration Translate resistivity to clay/sand using lithological logs  Clay fraction (CF) concept Clay Sand  CF-Resistivity clustering  Input - Resistivity model - Borehole lithology Clay fraction  3D cluster model Input - Clay fraction model - Resistivity model Input - Cluster model - Potential head - Stream discharge Hydrological model calibration 3D cluster model Data density 3D cluster model 5 clusters udvalgt vha. k-means CF-Resistivity clustering  Input - Resistivity model - Borehole lithology Clay fraction  3D cluster model Input - Clay fraction model - Resistivity model Input - Cluster model - Potential head - Stream discharge Hydrological model calibration CF-Resistivity clustering  Input - Resistivity model - Borehole lithology Clay fraction  3D cluster model 1 Input - Clay fraction model - Resistivity model Input - Cluster model - Potential head - Stream discharge Hydrological model calibration 3D cluster model 2 3D cluster model 3 3D cluster model n Håndtering af usikkerheder på input • Perturber resistivitet og CF med usikkerheder på felter  𝑋𝑋 𝒙𝒙 = 𝑋𝑋′ 𝒙𝒙 ∗ 𝜎𝜎 𝒙𝒙 + 𝜇𝜇(𝒙𝒙) 𝜇𝜇: mean  𝜎𝜎: standard deviation  𝑋𝑋′: stationary random field  𝑋𝑋: non-stationary perturbed field Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i resistivitet Usikkerheder i CF 1.0 0.0 0.5 Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Usikkerheder i Cluster Modeller Område og reference geologisk model Reference geologisk model Reference geologisk model Model og hydrologiske data Model og hydrologiske data Model og hydrologiske data Reference model  Model og hydrologiske data Reference model  Cluster model 1 Model og hydrologiske data Reference model  Cluster model 2 Model og hydrologiske data Reference model  Cluster model 3 Model og hydrologiske data Reference model  Cluster model 4 Model og hydrologiske data Reference model  Cluster model 5 Model og hydrologiske data Reference model  Cluster model 6 Model og hydrologiske data Reference model  Cluster model 7 Model og hydrologiske data Reference model  Cluster model 8 Model Uncertainty 3D cluster model 1 Input - Cluster model - Potential head - Stream discharge Hydrological model calibration 1-100 3D cluster model 2 3D cluster model 3 3D cluster model … 3D cluster model 100 Hydrological subselection Model predictions Oplandsusikkerhed Oplandsusikkerhed Oplandsusikkerhed Oplandsusikkerhed • For visse prædiktioner dominerer strukturelle fejl i hydrologiske modeller, men der findes få effektive måder at kvantificerer dem på • Metoden er hurtig og effektiv • Metoden er objektiv og reproducerbar • Vha. subselektion kan vi genererer modeller som overholder alle input data -> geologiske, geofysiske og hydrologiske • Metoden er generisk i forhold til geofysisk input • Vores prædiktion er i overensstemmelse med vores referencemodel Opsummering 

Mere end struktur - moderne anvendelse af højopløselig airborne geofysik i hydrologiske modeller

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Mere end struktur - moderne anvendelse af højopløselig airborne geofysik i hydrologiske modeller

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