Welcome · Colin Grudzien
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I am a Data Assimilation Research Scientist at the Center for Western Weather and Water Extremes (CW3E) of the Scripps Institution of Oceanography at the University of California San Diego. This is the home for my professional and creative interests. Please see the links in the menu for details about my research and other activities. See news and announcements below.

News and announcements

SIEnKS in Open Review

My work in collaboration with Marc Bocquet on the single-iteration ensemble Kalman smoother (SIEnKS) is now in open review in Geoscientific Model Development. This work derives a novel optimzation of ensemble-variational formalism for short-range forecast applications such as synoptic meteorology, and provides extensive numerical benchmark simulation and validation of the method, establishing the performance advantages of this technique. All numerical results are developed in the open-source Julia package DataAssimilationBenchmarks.jl which is currently open review in The Journal of Open Source Software. This work was presented in the Joint ICTP-IUGG workshop on Data Assimilation and Inverse Problems in Geophysical Sciences with the presentation slides linked here.