Resources: All

Find a resource
  1. education x
  2. dataassimilation x
  1. A Tutorial on Kalman Filters

    01 Jun 2016

    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.

  2. 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.

  3. 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.

  4. 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.

  5. 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....

  6. 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...

  7. 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...

  8. 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...

  9. Data assimilation for extreme ionospheric events: observing system experiments of the September 26, 2011 geomagnetic storm

    14 Apr 2016 | Presentations

    As increasingly sophisticated ground- and space-based technological systems that depend on the near-Earth space environment are being built, vulnerabilities to variations in the ionosphere are also increasing. These vulnerabilities are especially prominent during extreme space-weather events,...

  10. Emulators in climate science. Uncertainty, sensitivity, calibration and more

    30 Apr 2015 | Presentations

    An emulator or a surrogate is a statistical approximation of a complex numerical model. Emulators are fast to run and include a measure of their own uncertainty. This makes them suitable for a number of applications in climate science. Emulators were originally devised for uncertainty...

  11. Extending the square root method to account for model noise in the ensemble Kalman filter

    25 Feb 2015 | Presentations

    Presented by Patrick Raanes on 2-18-2015 Abstract:A novel approach to account for model noise in the forecast step of the Ensemble Kalman filter (EnKF) is proposed.  The core method is based on the approach of the analysis step of ensemble square root filters (ETKF), and...

  12. Hybrid EnKF and Particle Filter: Lagrangian DA and Parameter Estimation

    06 Nov 2015 | Presentations

    Dealing with high dimensional systems is one of the central problems of data assimilation.  A strategy is proposed here for systems that enjoys a skew-product structure.   Christopher Jones, University of North Carolina at Chapel Hill, presents joint work with Naratip...

  13. Hybrid EnKF and Particle Filter: Langrangian DA and Parameter Estimation

    02 Jun 2016 | Presentations

    This is a talk delivered at the Imperial College meeting on Stochastic Modeling in GFD, Data Assimilation and Non-equilibrium Phenomena on 11-4-2015.  This talk presents joint research by Chris Jones at UNC-CH and Naratip Santitissandeekorn on hybrid data assimilation methods.

  14. IMA Hot Topics Workshop: Predictability in Earth System Processes

    09 May 2015 | Workshops

    A major question facing climate modeling is how best to incorporate data into models. As climate models increase in complexity, their results become correspondingly intricate. Such models represent climate processes spanning multiple spatial and temporal scales and must relate disparate physical...

  15. Introduction to the Mathematics of Climate

    07 May 2015 | Series | Contributor(s): Colin James Grudzien

    This course will investigate the following questions from a mathematical perspective. What determines the Earth's surface temperature? Why does the carbon dioxide in the atmosphere affect the climate? How do changes in the Earth's orbital parameters change the climate? Why has the Earth...

  16. Introduction to the Mathematics of Climate at UMN - Lecture 1

    07 May 2015 | Presentations | Contributor(s): Colin James Grudzien

    This is lecture 1 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.       

  17. Introduction to the Mathematics of Climate at UMN - Lecture 10

    12 May 2015 | Presentations | Contributor(s): Colin James Grudzien

    This is lecture 10 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.

  18. Introduction to the Mathematics of Climate at UMN - Lecture 11

    12 May 2015 | Presentations | Contributor(s): Colin James Grudzien

    This is lecture 11 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.      

  19. Introduction to the Mathematics of Climate at UMN - Lecture 12

    12 May 2015 | Presentations | Contributor(s): Colin James Grudzien

    This is lecture 12 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.

  20. Introduction to the Mathematics of Climate at UMN - Lecture 13

    12 May 2015 | Presentations | Contributor(s): Colin James Grudzien

    This is lecture 13 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.