detecting flares dimmings and EUV waves in near realtime on SDOAIA images Emil Kraaikamp p Cis Verbeeck Royal Observatory of Belgium 12 th European Space Weather Week Oostende Belgium ID: 535391
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Solar Demondetecting flares, dimmings, and EUV waves in near real-time on SDO/AIA images
Emil Kraaikamp
(p), Cis Verbeeck – Royal Observatory of Belgium12th European Space Weather Week, Oostende, Belgium Solar Storms: Flares, CMEs and Solar Energetic Particle (SEP) events – November 24, 2015
STCESlide2Slide3Slide4Slide5
ContentsObjectivesSolar Demon overview
EUV wave detectionResultsQuestions
solardemon.oma.beSlide6
ObjectivesDimmings, Flares and EUV waves are closely related to CMEs
Develop early warning system for earth-directed CMEsFlares and dimmings detected typically within 20
minutes after image was taken with SDO/AIA!Characterize flare, dimming and EUV wave events for research purposesUse dimmings (size, location, .) to estimate CMEs strengthEUV wave speed v.s. CME speed?But beware of projection effects...Slide7
Solar Demon – versions
VersionQLK
ScienceNoteDevelopmentsolardemon.oma.be/dev/YESYES, 2010 – NowNot available all the time. Contains automated EUV wave detection. Productionsolardemon.oma.beYES
YES, 2010 – NowEUV wave detection not yet integratedArchive
solardemon.oma.be/old/NOYES, 2010 - Oct 29, 2015
no longer updatedFor science catalog: semi-automatic EUV wave detection availableSlide8
Solar Demon – Flare detectionSDO/AIA 9.4nm
Accurate flare location information No macro-pixels, accurate on pixel-level Opens door for studies on morphological characterization of flaresFast Runs in near real-time, as soon as data is available (typically just 20 minutes delay)
Big science catalog (since May 2010-)11.000 eventsCoupled to COMESEP alert systemProvides location for SEP alerts Slide9
Solar Demon – Dimming detectionSDO/AIA 21.1nm
Base and running difference images(also fast.. )Science and near real-time dimming detector4.400 events (since may 2010 ->)
Studies on Dimmings and CME relationSlide10
EUV Wave detectionSDO/AIA 21.1nm images
Uses Solar Demon flare detector as triggerSearch for EUV waves around flare eruption centerManual EUV wave speed estimationCurrently archived version of SD, and development version
Automatic EUV wave speed estimationExtract 24 sectors around eruption centergreat circlesPercentage running difference imagesSlide11
EUV Wave detection-Line filteringSlide12
EUV Wave detectionSlide13
EUV Wave detectionSlide14
EUV Wave detectionCurrently only available for M and X class flares
On development version (science data)To doInclude C-flares and belowOther source locations e.g. Search for EUV waves around all dimmings events
Quick-look dataOff-limb wave detection and tracking:Slide15
ResultsLocations of flares and dimmings (stonyhurst heliographic)Slide16
Results – Flare and Dimming Counts Flares DimmingSlide17
Results – Butterfly DiagramsSlide18
Results – Longitudinal DistributionFlaresSlide19
Results – Longitudinal DistributionFlaresSlide20
Results – Longitudinal DistributionFlaresSlide21
Results – Longitudinal DistributionDimmingsSlide22
Results – Longitudinal DistributionHistogramsSlide23
Questions?Demonstration at the FairWednesday 16:30 – 18:00
(there will be coffee, and beer afterwards!)emil.kraaikamp@oma.be
Solar Demon – an approach to detecting flares, dimmings, and EUV waves on SDO/AIA images – Kraaikamp, E., Verbeeck, C.
http
://dx.doi.org/10.1051/swsc/2015019