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NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM). Sixth Meeting of the Science Advisory Committee 28 February – 1 March, 2012. National Space Science and Technology Center, Huntsville, AL. transitioning unique NASA data and research technologies to operations. - PowerPoint PPT Presentation
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NASA SPoRT’s Pseudo Geostationary Lightning Mapper (PGLM)
Sixth Meeting of the Science Advisory Committee28 February – 1 March, 2012
National Space Science and Technology Center, Huntsville, AL
transitioning unique NASA data and research technologies to operations
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What is Total Lightning?
Tota
l Lig
htni
ng A
ctivi
ty
Inter-Cloud Flashes
Cloud-to-Ground Strikes
31 Individual Storms
Total Lightning• Combination of
cloud-to-ground and intra-cloud
transitioning unique NASA data and research technologies to operations
Importance of Total Lightning
0
50
100
150
200
250
300
Warning Issued
EF-1
Sour
ce
Den
sity
Lightning Jump
Example
• Correlates with updraft strength• Correlates with incipient severity• Not point data like NLDN• Enhance lightning safety• Enhance situational awareness
Lightning Safety
Example
transitioning unique NASA data and research technologies to operations
Relevance to SPoRT
LMAs are a major SPoRT activityFirst transition in 2003o Expanding to multiple networksProducing new training modulesDeveloping new visualizationsPreparing for AWIPS IIApply experience to GLM
Total Lightning
NLDN
Reflectivity
Velocity
transitioning unique NASA data and research technologies to operations
Dugway
NMTU
White Sands
TTUOU
TAMU
NALMA
GTU
KSC
DCLMA
LIGHTNING MAPPING ARRAYTOTAL LIGHTNING NETWORKS
Accomplishments
“Partner with other NOAA/NWS testbeds and nationwide partners” – SAC 2009
AWC
SPC
Current GLM Activities
Funded as part of GOES-R Proving Ground and Risk Reduction
Spring Program ParticipantPrepare forecasters for GLMo Created Pseudo-GLM (PGLM)o Provide training
o Contributions by partnerso Stand-in until GLM proxy ready
Training Module Used for the Spring Program
transitioning unique NASA data and research technologies to operations
Why Use the PGLM?
PGLM is NOT a GLM proxyDemonstration toolo Work with select end userso Total lightning and GLM
learningo Easy to implementFocus of discussiono How to use lower resolutiono Develop operational planso Develop display toolsSPoRT can produce this 24/7
PGLM with radar for Spring
Program
transitioning unique NASA data and research technologies to operations
Maximum Flash Density (MFD) Product
Standard PGLM Flashes
17 Flashes
8 Flashes
Are these strengthening or weakening?
Can loop, use AWIPS II tool, OR
30 min Maximum
Flash DensityPlots maximum flash density for
each grid box over 30 min
54 Flashes
19 Flashes
9 Flashes
Use by overlaying
PGLM
Standard PGLM overlaid on the
MFD
Compare current 2 min PGLM vs 30 min MFD
PGLM: 1 MFD: 9
PGLM: 17 MFD: 54
PGLM: 8 MFD: 19 All cells
weakening
Another use for MFD, or density track product
30 min MFD
Lightning Safety!
Spatial extent over
30 min
Threat of cloud-to-
ground strike
Matches well with
30-30 rule
SUMMARY
• MFD is a fast “at a glance” trending tool• Compare 30 min MFD to current 2 min PGLM
• If PGLM > MFD, intensifying and vice versa• MFD gives 30 min overview of spatial extent which is
very useful for lightning safety• Designed based on feedback from forecasters
transitioning unique NASA data and research technologies to operations
Spring Program Forecaster Feedbacko 70% responded PGLM was
“relatively easy” to interpreto 54% ranked PGLM an 8 or better
for using it in the futureo 63% ranked PGLM an 8+ for
importance – 94% with a 6+o Overwhelmingly support a trend
toolo Provided training updateso Impressed with situational
awarenesso Impressed with cloud-to-ground
lead time
transitioning unique NASA data and research technologies to operations
Looking ForwardThe PGLM is main lightning toolo Ready for 2012 and latero West Texas LMA will be addedUpdate and develop trainingNew processingo Developing new mosaic productIncorporating feedbacko AWIPS II (e.g. tracking tool)Visiting scientist trips to AWC / SPCTransition GLM proxy as appropriateOnce GLM is launchedo Perform process studieso GLM validation
Washington DC PGLM
Oklahoma PGLM
transitioning unique NASA data and research technologies to operations
BACKUP SLIDES
transitioning unique NASA data and research technologies to operations
Operational Example
PGLM Reflectivity
9 Flashes
2209 UTC
transitioning unique NASA data and research technologies to operations
Operational Example
PGLM Reflectivity
16 Flashes
2212 UTC
transitioning unique NASA data and research technologies to operations
Operational Example
PGLM Reflectivity
75 Flashes
2220 UTC
transitioning unique NASA data and research technologies to operations
Operational Example
PGLM Reflectivity
Warning Issued
2226 UTC
transitioning unique NASA data and research technologies to operations
