The program for Lofotseminaret 2023 was the following:
Program Lofotseminaret 2023 in Applied Geophysics
August 23rd – 25th 2023 in Nyvågar, Kabelvåg
WEDNESDAY 23rd OF AUGUST
13:00 – 14:00: Lunch
14:00 – 14:15: Tor Arne Johansen, UiB: Welcome
Session 1. Keywords: CO2 and EM
Chair: Tor Arne Johansen
14:15 – 15:00: Keynote 1: Philip Ringrose, Equinor/NTNU: What do we REALLY need to know for monitoring CO2 storage sites
15:00 – 15:25: Kim S. Mews, NTNU, Serhii Lozovyi, Jørn F. Stenebråten and Rune M. Holt: 3D imaging of CO2 distribution via combined low-frequency and μCT measurements
15:25 – 15:50: Vemund Stenbekk Thorkildsen, Argeo/UiO: Resolution enhancement of 2D CSEM images by use of PSF inversion
Coffee break (20 min)
Session 2. Keywords: Glacial environments and other planets
Chair: Nils Erik Bakke
16:10 – 16:35: Rowan Romeyn and Alfred Hanssen, UiT: Passive recording of flexural waves for estimation of lake ice parameters
16:35 – 17:00: Helene Meling Stemland, UiB, Tor Arne Johansen and Bent Ole Ruud: Passive seismic experiments in front of Nordenskiöldbreen, Svalbard
17:00 – 17:25: Emma (Mickey) Mackie, University of Florida, Michael Field, Lijing Wang, and Zhen (David) Yin: Geological realism in the subglacial environment
17:25 – 17:50: Giacomo Roncoroni, University of Trieste, Emanuele Forte and Michele Pipan: Looking beneath the surface of other planets by means of GPR: recent advances
Poster session and icebreaker:
Chair: Alfred Hanssen
18:00 – 19:00: Poster session and icebreaker start-up
19:00 – 20:00: Ice breaker continued
20:00: Dinner
Poster session:
Julie Svendsmark, UiB, Tor Arne Johansen, Helene Meling Stemland and Bent Ole Ruud: Effects of near-surface thawing on elastic properties and signatures of seismic surface waves
Juan Camilo Meza-Cala, UiO, Alexander Minakov and Jan Inge Faleide: Nature of acoustic basement and the sedimentary successions in the southwestern Eurasia Basin, Arctic Ocean – Preliminary results of a new cooperation in Polar research
Kristoffer Tesdal Galtung, NTNU and Alexey Stovas: Investigating Properties of Multiple Diving Waves in Isotropic Media
Michael Field, University of Florida and Emma (Mickey) Mackie: Improving sub-ice-shelf bathymetry estimates using a geostatistical inversion method
Mohammad Reza Dadkhah, UiO, Guillaume Sauvin, Luke Griffiths, Rasmus Tofte Klinkvort, Lars Grande and Nazmul Haque Mondol: Geological, geophysical and geotechnical site characterization for an offshore wind farm
Owen Huff, UiO/Aker BP, Vemund Thorkildsen, Andreas Evensen, Jan Erik Lie and Aina Juell Bugge: Restoration of Near Offsets in Marine Seismic Data with a Convolutional Neural Network
Ricardo Martinez, NTNU/CGF, Vetle Vinje, Alexey Stovas, Philip Ringrose, Kenneth Duffaut and Martin Landrø: Diving-wave time-lapse delay for CO2 thin layer detection
Ujjwal Shekhar, UiB, Morten Jakobsen and Kui Xiang: Microseismic source localization and focal mechanism determination in anisotropic elastic media
Alisher Khodjaev, UiB, Morten Jakobsen: Fast integral equation methods for a real-time induction logging
THURSDAY 24th of AUGUST
Session 3. Keywords: Rock physics and integrated subsurface characterization
Chair: Leiv-J. Gelius
09:15 – 10:00: Keynote 2: Sabina Strmic Palinkas, UiT: Seafloor massive sulfide (SMS) deposits on the Arctic Mid-Ocean Ridges: An insight into ore-forming processes along ultraslow spreading ridges
10:00 – 10:25: Jiaxin Yu, NTNU, Tapan Mukerji and Per Avseth: rockphypy: An extensive Python library for rock physics modeling
10:25 – 10:50: Per Avseth, Dig science/NTNU: Extrapolation of rock properties and expected seismic signatures away from bore holes, guided by geology and seismic velocities
Coffee break (25 min)
11:15 – 11:40: Nazmul Haque Mondol, UiO and Manzar Fawad: Rock physics analysis and AVO modeling of CO2 storage site Smeaheia in the Northern North Sea
11:40 – 12:05: Khoirrashif Pratikna, UiO and Nazmul Haque Mondol: A combined approach of pre-stack inversion and machine learning for petrofacies characterization in the Sleipner CO2 storage site
12:05 – 12:30: Morten Jakobsen, UiB, Kui Xiang, Ujjwal Shekhar and Durra Handri: Efficient linear algebra and optimization methods for direct and inverse scattering problems in imaging
12:30 – 12:55: Kui Xiang, UiB, Morten Jakobsen and Ujjwal Shekhar: Study on full-waveform inversion in anisotropic elastic media based on a matrix-free distorted Born iterative method
13:00 – 14:00 Lunch
Session 4. Keywords: Imaging and Gjøystdal-session
Chair: Per Avseth
14:00 – 14:45: Keynote 3: Nizar Chemingui, PGS: Robust estimation of earth properties through simultaneous inversion of velocity and angle-dependent reflectivity
14:45 – 15:10: Marteen de Hoop, Rice University, I Dokmanic, N. Kovachki, A. Kratsio, C. Liu, M. Lassas, N. Nelsen and A. Stuart: Operator learning and geo-inverse problems
15:10 – 15:35: Leiv-J. Gelius, UiO: Pseudo-seismic imaging and inversion of transient EM data
15:35 – 16:00: Einar Iversen, UiB: About a lifelong commitment to seismic modeling and imaging
Coffee break (15 min)
16:15 – 16:30: In memory of Håvar Gjøystdal: Bjørn Ursin/Einar Iversen: Early career at GECO and NORSAR
16:30 – 16:45: In memory of Håvar Gjøystdal: Leiv-J. Gelius/Tor Arne Johansen: Activities at UiO and UiB
18:00 Departure from Nyvågar to Henningsvær
18:30: Dinner in Henningsvær
21:30: Concert at Klatrekafeen, Henningsvær
00:00: Departure from Henningsvær to Nyvågar
FRIDAY 25th OF AUGUST
Session 5. Keywords: Modeling and signal processing
Chair: Vemund Stenbekk Thorkildsen
09:15-10:00: Keynote 4: Inga Berre, UiB: Modeling of coupled thermo-hydro-mechanical processes and fault deformation induced by injection and production operations
10:00 – 10:25: Milton J. Porsani, UFBA, Bjørn Ursin, NTNU and Michelangelo G. Silva: Signal spiking with non-linear phase filters
10:25 – 10:50: Alexey Stovas, NTNU: The d-classification of orthorhombic media
Coffee break (20 min)
Session 6. Keywords: Modeling and signal processing (cont.) and DAS
Chair: Helene Stemland
11:10 – 11:35: Bhargav Boddupalli, Børge Arntsen, NTNU, Tor Andre Haugdahl, Mrinal Sen and Martin Landrø: Full Waveform Inversion using Wasserstein Generative Neural Networks
11:35 – 12:00: Kevin Growe, NTNU, H. Dong, S. Wienecke, J. Jacobsen and Martin Landrø: Monitoring Railways with Distributed Acoustic Sensing – a Case Study from Norway
12:00 – 12:25: Lukas Thiem, NTNU, Melvin Vaupel, Kittinat Taweesintananon and Martin Landrø: Marine traffic monitoring using distributed acoustic sensing: A case study in the Trondheimsfjord, Norway, towards fully automatic ship tracking
12:25 – 12:50: Robin Rørstadbotnen, NTNU: Simultaneous tracking of multiple whales using two fiber-optic cables in the Arctic
12:50 – 13:00: Closing remarks
End of seminar