Stephen G. Penny Email and Phone Number

Leading Sofar's Weather team to produce industry leading weather forecasts over the the world's oceans.

Developing the Hybrid Global Ocean Data Assimilation System (Hybrid-GODAS) at NCEP. Constructing the ocean data assimilation component of the next generation Climate Forecasting System (CFS).

Developing practical particle filtering methods for high dimensional geophysical systems.

Implementing the next-generation operational ocean data assimilation system for NOAA.Designing new algorithms and theoretical advancements for the prediction of geophysical systems.Leading the ocean assimilation component for a strongly coupled data assimilation system to support India's "National Monsoon Mission".

*Designed a next-generation data assimilation system for ocean state estimation at the National Oceanic and Atmospheric Administration (NOAA).*Designed a strongly-coupled data assimilation system for Coupled Data Assimilation (Atmosphere/Ocean/Ice) as part of India's Monsoon Mission.*Developed fundamental research in the theory and application of data assimilation in the geosciences.*Applied the Local Ensemble Transform Kalman Filter to the GFDL MOM4p1 ocean model for the National Centers of Environmental Prediction (NCEP).

* Developed working data assimilation system for the Global Ocean, including both the Local Ensemble Transform Kalman Filter (LETKF) and the Simple Ocean Data Assimilation (SODA) applied to the GFDL model MOM2.* Research in advanced Kalman Filter techniques applied to data assimilation using ensemble weather forecasting of ocean and atmospheric numerical weather models.* Research in inverse problems related to cloud tomography.

* Applied the A* algorithm over a modified search graph for weather avoidance by flows of aircraft.* Developed Scheduler and Simulation for modeling aircraft weather avoidance in the transition airspace between en route and arrival/departure phases.* Authored article on classification of NAS data using cluster analysis and co-authored AIAA papers on a NAS statistical analysis and a comparison of algorithmically based weather avoidance techniques.* Provided operational support at the FAA's national Air Traffic Control System Command Center (ATCSCC) for Metron Aviation products.* Observed the Traffic Management Unit at the Cleveland Center Air Route Traffic Control Center over 8 consecutive days, researching NASA's DAG-TM concepts for increasing collaboration between the airlines and air traffic control.* Assisted in the development and application of Kalman Filter algorithms for processing noisy surface surveillance data for identifying and predicting events on the airport surface.ATC TFM Operational Experience:* Observed at Fort Worth (ZFW), Chicago (ZAU), and Los Angeles (ZLA) ARTCCs in multi-day observation and data collection sessions.

*Automatic methods for robust aircraft design optimization*Implemented automatic differentiation

Researched polynomial projections related to nonlinear algebra.* Applied theoretical research to the n-body problem.* Worked independently with mentoring from a professor from the mathematics department.* Presented work at national AMS and regional MAA conferences.

* Inspected contractor construction work to be within allowable range of error* Trained on multiple roadway and structures construction projects