NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM). 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 - PowerPoint PPT Presentation
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NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM) GOES-R Science Week Meeting 19-23 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, 19-20 September 2011, Huntsville, Alabama
Transcript
NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM)
GOES-R Science Week Meeting19-23 September, 2011
Huntsville, Alabama
Geoffrey StanoENSCO, Inc./NASA Short-term Prediction Research and Transition Center, Huntsville, AL
Acknowledgments: Brian Carcione1, Kristin Kuhlman2, and Christopher Siewert3
1 NOAA National Weather Service, Huntsville, AL2 University of Oklahoma – CIMMS / NSSL, Norman, OK
3 University of Oklahoma – CIMMS, Norman OK
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
Outline
What is SPoRT?Current Lightning and GLM ActivitiesWhat is the Pseudo GLM?o Origino Why is it being usedo Operational examples
Conclusions and Future Work
GLM Annual Science Meeting, 19-20 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
First transition in 2003o North Alabama Networko Now work with 5 WFOso Use three networksProducing new training modulesDeveloping new visualizationsPreparing for AWIPS II
Source Density
NLDN
Reflectivity
Velocity
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
Current GLM Activities
Funded as part of GOES-R Proving Ground and Risk Reduction
Spring Program ParticipantPrepare forecasters for GLMo Start with Pseudo-GLM (PGLM)o Providing datao Providing trainingo Eventually GLM proxy
Training Module Used for the Spring Program
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
Origin of the Pseudo GLM
Came from 2009 Spring ProgramNo viable product to demonstrateo Used “smeared” source densityo Or standard source densityo AWG proxy not availableNeeded 3 thingso Flash-based producto GLM resolutiono Make for all ground networks
First PGLM use at Spring Program (2010) and overlaid on IR image
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
What Is the Pseudo GLM?Uses only ground-based datao GLM is optical basedo PGLM not trained with LIS
Flash extent densityo Uses GLM resolution o GLM flash outputo Used in 2010 and 2011
Collaboration with NSSLo SPoRT sends raw datao NSSL processes locally
Endorsed/funded by Proving Ground
PGLM
Reflectivity
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
1 Flash 3 Flashes
2 FlashesNo Flash
y
x
Start with raw sourcesAlgorithm recreates flashes
o First find initiation pointso Match sources to flashes
Place flashes on a grido Count how many flashes in
each 8 km boxo Flash only counted once
per boxFinal product is the Pseudo GLM
flash extent density
Making the PGLM
Why Use the PGLM?
PGLM is NOT a GLM proxyWhat is the point then?Demonstration toolo Work with select end userso Total lightning and GLM
learningo Easy to implementFocus of discussiono How to use lower resolutiono Develop operational plansSPoRT can produce this 24/7
PGLM used for warning
in Spring Program
GLM Annual Science Meeting, 19-20 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 coreso Shows spatial extent
Lightning safety
Example Maximum Flash Density
Other PGLM Uses
Tool for new visualizationso Integrate with other toolso 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, 19-20 September 2011, Huntsville, Alabama
First CG within 5 nm
2221 UTC2235 UTC2249 UTC
First CGFirst CG within 10 nm
Airport Weather Warning Issued
for KHSV
2200 UTC2202 UTC2207 UTC
Operational Example
Looking ForwardThe PGLM is a Demonstration toolo Stop-gap until AWG proxyo Available for any networko Train about total lightningo Train about the GLMDiscussion for developmento Led to maximum density
productTechnical aido AWIPS II developmento Operational proceduresSpring Program feedback positive
PGLM & 1 km
MODIS visible
PGLM Flash Initiation
and Reflectivity
GLM Annual Science Meeting, 19-20 September 2011, Huntsville, Alabama
