NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM) GOES-R Science Week Meeting 19-23 September, 2011 Huntsville, Alabama Geoffrey Stano ENSCO, Inc./NASA.

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NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM) GOES-R Science Week Meeting September, 2011 Huntsville, Alabama Geoffrey Stano ENSCO, Inc./NASA Short-term Prediction Research and Transition Center, Huntsville, AL Acknowledgments: Brian Carcione 1, Kristin Kuhlman 2, and Christopher Siewert 3 1 NOAA National Weather Service, Huntsville, AL 2 University of Oklahoma – CIMMS / NSSL, Norman, OK 3 University of Oklahoma – CIMMS, Norman OK GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Outline What is SPoRT? Current Lightning and GLM Activities What is the Pseudo GLM? o Origin o Why is it being used o Operational examples Conclusions and Future Work GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Mission: Apply unique NASA Earth science research and observations to improve the accuracy of short-term (0-24 hr) weather prediction at the regional and local scale – work mainly with WFOs SPoRT Paradigm Match observations/capabilities to forecast problems Develop / assess solution in “testbed”, transition to decision support system Conduct training, product assessment and impact Do not throw data “over the fence” The NASA SPoRT Program GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Current Lightning Work First transition in 2003 o North Alabama Network o Now work with 5 WFOs o Use three networks Producing new training modules Developing new visualizations Preparing for AWIPS II Source Density NLDN Reflectivity Velocity GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Current GLM Activities Funded as part of GOES-R Proving Ground and Risk Reduction Spring Program Participant Prepare forecasters for GLM o Start with Pseudo-GLM (PGLM) o Providing data o Providing training o Eventually GLM proxy Training Module Used for the Spring Program GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Origin of the Pseudo GLM Came from 2009 Spring Program No viable product to demonstrate o Used “smeared” source density o Or standard source density o AWG proxy not available Needed 3 things o Flash-based product o GLM resolution o Make for all ground networks First PGLM use at Spring Program (2010) and overlaid on IR image GLM Annual Science Meeting, September 2011, Huntsville, Alabama

What Is the Pseudo GLM? Uses only ground-based data o GLM is optical based o PGLM not trained with LIS Flash extent density o Uses GLM resolution o GLM flash output o Used in 2010 and 2011 Collaboration with NSSL o SPoRT sends raw data o NSSL processes locally Endorsed/funded by Proving Ground PGLM Reflectivity GLM Annual Science Meeting, September 2011, Huntsville, Alabama

1 Flash3 Flashes 2 FlashesNo Flash y x Start with raw sources Algorithm recreates flashes o First find initiation points o Match sources to flashes Place flashes on a grid o Count how many flashes in each 8 km box o Flash only counted once per box Final product is the Pseudo GLM flash extent density Making the PGLM

Why Use the PGLM? PGLM is NOT a GLM proxy What is the point then? Demonstration tool o Work with select end users o Total lightning and GLM learning o Easy to implement Focus of discussion o How to use lower resolution o Develop operational plans SPoRT can produce this 24/7 PGLM used for warning in Spring Program GLM Annual Science Meeting, September 2011, Huntsville, Alabama

0038 UTC 0008 – 0036 UTC 0039 UTC PGLM MFD Reflectivity o Compare PGLM to MFD  What has changed? o MFD shows lightning cores o Shows spatial extent  Lightning safety Example Maximum Flash Density

Other PGLM Uses Tool for new visualizations o Integrate with other tools o New products Max density Flash initiation density Others? o Transitioned to AWIPS II Future decision support Aid with AWG proxy Max PGLM (AWIPS II) PGLM (AWIPS II) Both 24 April 2010 GLM Annual Science Meeting, September 2011, Huntsville, Alabama

First CG within 5 nm 2221 UTC2235 UTC2249 UTC First CG First CG within 10 nm Airport Weather Warning Issued for KHSV 2200 UTC2202 UTC2207 UTC Operational Example

Looking Forward The PGLM is a Demonstration tool o Stop-gap until AWG proxy o Available for any network o Train about total lightning o Train about the GLM Discussion for development o Led to maximum density product Technical aid o AWIPS II development o Operational procedures Spring Program feedback positive PGLM & 1 km MODIS visible PGLM Flash Initiation and Reflectivity GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Questions o SPoRT Webpage o weather.nasa.gov/sport GLM Annual Science Meeting, September 2011, Huntsville, Alabama

Outline