Peter Jan van Leeuwen is a Professor of Data Assimilation at the University of Reading.  His research interests include nonlinear data assimilation, geophysical fluid dynamics, interaction thermohaline and wind-driven ocean circulation, and perturbation theory.Sebastian Reich is a Professor in the Department of Numerical Mathematics at Universität Potsdam. His research interests include uncertainty quantification, geophysical fluid dynamics, molecular dynamics, and geometric integration.

• Nonlinear Data Assimiliatoin for High-Dimensional Systems.- Assimilating Data into Scientific Models: An Optimal Coupling Perspective.

"In the present volume two solutions are presented to deal with high-dimensional systems, where both methods start from 'particle filters', i.e., from sequential Monte Carlo methods in which the samples are called 'particles'. ... The volume, containing many figures and references, can be recommended to readers interested in the design and application of data assimilation algorithms." (Kurt Marti, zbMATH 1330.62004, 2016)