Center for Environmental Sensing and Modeling
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SEMINAR: MARINE RESEARCH

14 AUG 2017
MONDAY, 12PM

CREATE TOWER,
LEVEL 2, THEATRETTE

UPON INVITATION ONLY

Speaker's Bio:

Jurriaan received his Ph.D. and was an assistant professor in Fluid Mechanics at the Delft University of Technology in The Netherlands from 2008 to 2013. He worked as a Senior Research Fellow in Nanyang University of Technology before joining CENSAM, SMART as a Research Scientist in Sept 2016 under Professor Dick Yue (MIT)’s team.

Jurriaan’s current research focuses on flow field reconstruction from image sequences, with applications to atmospheric and oceanographic modelling.

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Weather forecasting involves combining a numerical fluid mechanics model with images, that are taken by satellites, and that represent e.g. clouds, temperature and atmospheric pressure.

In this lecture, I propose a space-time integral minimization technique (4DVAR), to extract the underlying velocity field from such images. The method is applied to sequential, 2D images of a passive scalar field in a synthetic, forced, 3D, isotropic, turbulent flow field. The performance of the method is discussed, as a function of the spatial and temporal measurement resolutions, relative to the turbulent scales.

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