Data Assimilation for High Dimensional Systems

Explore the complexities of data assimilation in high-dimensional systems through this comprehensive lecture. Delve into advanced techniques for integrating observations and short-range forecasts to estimate accurate atmospheric states and their uncertainties. Learn how these methodologies extend beyond weather prediction to climate monitoring and understanding variability through historical data reanalysis. Gain insights into the application of data assimilation across Land, Atmosphere, and Ocean domains. Discover the fundamental concepts, various methods like Optimal Interpolation, 3D-Var, 4D-Var, Kalman filter, and Ensemble Kalman Filter techniques. Understand uncertainty estimation through ensemble data assimilations and explore the utilization of satellite and remote sensing observations. Examine diverse applications in land surface studies, oceanography, atmospheric composition, and reanalysis efforts. This lecture is part of a broader workshop aimed at addressing the scarcity of well-trained scientists in data assimilation, providing both theoretical foundations and practical applications to foster expertise in this crucial research field.

Data Assimilation – High Dimensional Systems by Varahan