Spring school & workshop: Inverse problems and approximation techniques in planetary sciences
Organization
Dates: 16-18 May 2018.
Location: INRIA, Centre de Recherche Sophia Antipolis Méditerranée.
Organizers: Laurent Baratchart, Sylvain Chevillard, Juliette Leblond, Marie-Line Meirinho.
The organization is supported by C4PO (UCA Jedi), INRIA Sophia Antipolis, and the team APICS-FACTAS.
Presentation
A workshop and a school will be held for 3 days on inverse problems in harmonic electromagnetism and approximation, with applications mainly dedicated to geomagnetism and paleomagnetism. They will more precisely concern direct and inverse potential problems of source detection and non-destructive control, data extension, conductivity or permittivity estimation from boundary data, together with resolution algorithms. The techniques pertain to harmonic analysis, e.g. expansions in spherical harmonics or other families of special functions, Hodge decomposition principles, approximation theory and constrained optimization, Fourier analysis, ...
Applications to geosciences and planetary sciences concern in particular geomagnetism, subsoil prospection, paleomagnetism, gravimetry, source imaging, processing of stellar signals, measures protocols and steering of instruments.
The school and the workshop are open to Master or PhD students and of course to post-doctoral researchers, researchers, professors, engineers.
Communications from young participants (PhD, post-doc., young researchers, engineers) are strongly encouraged.
Program
The talks will take place in room Euler Violet (just in front of the main entrance of Inria, on the left). To enter the Inria Research center, you will need to present an ID to the Welcoming Desk.
| Time | Wednesday, May 16 | Time | Thursday, May 17 | Time | Friday, May 18 |
|---|---|---|---|---|---|
| 09:30 | Modelling Earths Gravitational Potential with a Learned Best Basis N. Schneider |
09:30 | Reconstruction of Obstacles from Partial Boundary for Wave Equation with Finite Measurement Time D. Ponomarev |
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| 10:05 | Multicale Modelling in Poroelasticity B. Kretz |
10:25 | Pause | ||
| 10:40 | Pause | 10:55 | Sensitivity Analysis for Maxwell's Equations and Application to an Inverse Problem J. Heleine |
||
| 11:10 | Uncertainty Quantification of Complex Systems Described by Large-Scale Equations F. Ferranti |
11:30 | Discussions and closing session | ||
| 12:05 | Lunch | 12:00 | Lunch | ||
| 14:00 | Examples of Satellite Data Based Potential Field Problems and Approximation Methods on the Sphere C. Gerhards |
14:00 | The Inverse Problem in Magnetic Imaging of Geological Samples E. Lima |
||
| 15:10 | Some Magnetic Field Data Processing on Terrestrial and Planetary Cases Y. Quesnel |
14:55 | Rational Approximation of a Magnetic Dipole from Sparse Field Measurements K. Mavreas |
||
| 15:45 | Pause | 15:50 | Pause | ||
| 16:15 | Water Waves Determination from Pressure Measurements at the Seabed D. Clamond |
16:25 | Regularization Issues for Inverse Magnetization Problem L. Baratchart |
||
| 19:30 | Dinner |
The complete program (including abstracts and list of participants to the workshop) can be downloaded as a PDF here.
Practical information
To go from the airport to Antibes: take the bus number 200 at the stop "Aéroport-Promenade". The stop is on the "Promenade des anglais", in front of Terminal 1. If you land at Terminal 2, there is a regular free shuttle to join Terminal 1.
When the bus approaches, make a clear sign to the driver to make him stop and take you. The ticket costs 1,50€ and is paid directly to the driver. Have coins with you, as they generally refuse bills. Exit the bus in Antibes at stop "Pôle d'échange Antibes". The total ride is about 40 minutes. Bus 200 schedules.
If you want to go directly from the airport to the workshop, the bus stop and instructions are the same as above, but you take the bus number 230 instead and you exit the bus at stop "Inria". Bus 230 schedules.
If we reserved the hotel for you, your hotel is "Hotel de l'Etoile" at 2 avenue Gambetta in Antibes. When you lease the bus, you go down to the train station, then walk 10 minutes to the hotel (see path in blue below).
Accomodation: as can be seen on the map above, there are plenty of restaurants in "Vieil Antibes" (Antibes old town), at less than 10 minutes walk east of the hotel.
To go from Antibes to the workshop: take bus number 1 at the stop "Pôle d'échange Antibes" direction "Gare routiere Valbonne Sophia Antipolis" and exit at stop "Inria". Take care that a few buses go to "Foyer le Roc" which is in the same direction, but their terminal stop is before Inria. The ticket costs 1,50€ and is paid directly to the driver. Have coins with you, as they generally refuse bills. Bus 1 schedules.
If you are at Hôtel de l'Étoile, the bus stop "Dugommier" is a little bit closer than "Pôle d'échange Antibes" (from the hotel, turn right along Avenue Gambetta, until you cross Boulevard Dugommier. The stop is on your left) but this stop works only to go from Antibes to Inria; on the way back, you will have to stop at "Diables bleus", which is only a few meters before the hotel.
From the bus stop "Inria", you just have to cross the road and the main entrance of Inria is a few meters on the right (there are currently gypsies installed just in front, so the entrance is not clearly visible, until you are precisely at it). Introduce yourself at the Welcoming Desk and they will give you intructions.
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The social dinner will take place in the Golden Beef restaurant, at 1 avenue du Général Maizière in Antibes. It is at 10 minutes walking from the hotel (see map below). We will organize a collective departure to it.
If you have any trouble, do not hesitate to contact either Sylvain Chevillard () or Juliette Leblond ().
