A Survey of Grid Control and Optimization

07 May 2015 | Presentations | Contributor(s): Laura Slivinski

This is an introductory survey of how control problems arise on different time scales in electric grid transmission problems.  The set up and general form of such problems are considered, along with operational considerations.

A Survey of Grid Control and Optimization

07 May 2015 | Presentations | Contributor(s): Mary Lou Zeeman

This is an introductory survey of how control problems arise on different time scales in electric grid transmission problems.  The set up and general form of such problems are considered, along with operational considerations.

A Tutorial on Kalman Filters

01 Jun 2016 | Presentations

This is an introduction to the Kalman filter, explaining some underlying assumptions, use and extensions of the method.This talk was given on 10-7-2015.

An Introduction to Lagrangian Data Assimilation - Part I

23 Mar 2015 | Presentations

Laura Slivinski at Woods Hole Oceanographic Institute gives an introduction to Lagrangian Data Assimlation on 10-30-2014.

An Introduction to Lagrangian Data Assimilation - Part I

23 Mar 2015 | Presentations | Contributor(s): Mary Lou Zeeman

Laura Slivinski at Woods Hole Oceanographic Institute gives an introduction to Lagrangian Data Assimlation on 10-30-2014.

An Introduction to Lagrangian Data Assimilation - Part II

23 Mar 2015 | Presentations

Lauara Slivinski at Woods Hole Oceanographic Institution gives an introduction to Lagrangian Data Assimilation on 11-13-2014.

An Introduction to Lagrangian Data Assimilation - Part II

23 Mar 2015 | Presentations | Contributor(s): Mary Lou Zeeman

Lauara Slivinski at Woods Hole Oceanographic Institution gives an introduction to Lagrangian Data Assimilation on 11-13-2014.

An Introduction to Variational Data Assimilation

23 Mar 2015 | Presentations

Naratip Santitissadeekorn gives an introductory survey of variational techniques in data assimilation including 3D-VAR and 4D-VAR.  This talk was given on 10-2-14.

An Introduction to Variational Data Assimilation

23 Mar 2015 | Presentations | Contributor(s): Mary Lou Zeeman

Naratip Santitissadeekorn gives an introductory survey of variational techniques in data assimilation including 3D-VAR and 4D-VAR.  This talk was given on 10-2-14.

Andy Reagan: Masters Thesis

23 Mar 2015 | Presentations

Andy Reagan at UVM gives a talk about his masters work on uncertainty quantification and data assimilation to improve the numerical prediction of fluids in the thermosyphon. This talk will involve several data assimilation methods, including variational techniques, but will focus on LETKF....

Andy Reagan: Masters Thesis

23 Mar 2015 | Presentations | Contributor(s): Mary Lou Zeeman

Andy Reagan at UVM gives a talk about his masters work on uncertainty quantification and data assimilation to improve the numerical prediction of fluids in the thermosyphon. This talk will involve several data assimilation methods, including variational techniques, but will focus on LETKF....

Chaotic Dynamical Systems: the Bernoulli Shift

04 May 2016 | Presentations | Contributor(s): Laura Slivinski

This is the first part of a series of lectures on chaotic dynamics, and focuses on the Bernoulli shift. This short lecture series was part of the MCRN Mathematics of Climate Modelling Course taught at the University of North Carolina by Chris Jones in 2013. This course was a second year...

Chaotic Dynamical Systems: the Horseshoe Map

04 May 2016 | Presentations | Contributor(s): Laura Slivinski

This is the second part of a series of lectures on chaotic dynamics, and focuses on the Horseshoe Map. This short lecture series was part of the MCRN Mathematics of Climate Modelling Course taught at the University of North Carolina by Chris Jones in 2013. This course was a second year graduate...

Complex Energy Systems

07 May 2015 | Presentations

This is the opening guest lecture for the Electric Grid Focus Group.  Dr. Michael Chertkov of Los Alamos National Lab describes the statistical and mathematical problems arising in complex energy systems, including the electric grid and gas networks.  Systems with high penetration of...

Complex Energy Systems

07 May 2015 | Presentations | Contributor(s): Laura Slivinski

This is the opening guest lecture for the Electric Grid Focus Group.  Dr. Michael Chertkov of Los Alamos National Lab describes the statistical and mathematical problems arising in complex energy systems, including the electric grid and gas networks.  Systems with high penetration of...

Complex Energy Systems

07 May 2015 | Presentations | Contributor(s): Mary Lou Zeeman

This is the opening guest lecture for the Electric Grid Focus Group.  Dr. Michael Chertkov of Los Alamos National Lab describes the statistical and mathematical problems arising in complex energy systems, including the electric grid and gas networks.  Systems with high penetration of...

Complex Phytoplankton Dynamics: The Mathematical Perspective

04 May 2015 | Educational Materials

Bibliography by Arjen Doelman and Antonios Zagaris to accompany tutorial lecture on Phytoplankton-Nutrient Modeling at the 2011 MBI Workshop on Ocean Ecologies and their Physical Habitats in a Changing Climate, and the follow-on lectures on Phytoplankton growth in oligotrophic oceans: Linear...

Complex Phytoplankton Dynamics: The Mathematical Perspective

04 May 2015 | Educational Materials | Contributor(s): Laura Slivinski

Bibliography by Arjen Doelman and Antonios Zagaris to accompany tutorial lecture on Phytoplankton-Nutrient Modeling at the 2011 MBI Workshop on Ocean Ecologies and their Physical Habitats in a Changing Climate, and the follow-on lectures on Phytoplankton growth in oligotrophic oceans: Linear...

Computational Techniques for Lyapunov Exponents and Vectors

23 Mar 2015 | Presentations | Contributor(s): Mary Lou Zeeman

In this talk we present computational techniques for Lyapunov exponents and vectors based upon continuous matrix factorizations (QR and SVD). We outline the techniques, their well-posedness, error analysis/perturbation theory, and describe codes we have developed. We then discuss application of...

Correlated Observation Errors in Data Assimilation

30 Apr 2015 | Presentations

Remote sensing observations often have correlated errors, but the correlations are typically ignored in data assimilation for numerical weather prediction. The assumption of zero correlations is often used with data thinning methods, resulting in a loss of information, and reduction in analysis...