OWLeS Research Objectives Dual-Doppler: DOWs 6 & 8 22:50 UTC 2013-12-18 Dual Doppler Plot
Pournelle, Alexander, Contributing Editor and Writer has reference to this Academic Journal, PHwiki organized this Journal OWLeS ResearchAshanté McLeod-Perez, Stephen Piechowski, Scott Steiger, Lauren Cutler, Shania Nichols, Tyler Kranz, Andrew JaniszeskiSUNY Oswegoamcleodp@oswego.eduObjectivesShow Dual Doppler AnalysisShow Objective AnalysisDiscuss lightning in addition to findingsDiscuss WRF modelingDual-Doppler: DOWs 6 & 8 Step 1: Edit via SOLO-32: Objective Analysis (2-pass Barnes)Grid spacing 300 – 340 m (so can resolve features > 1.7 km)Smoothing parameter 0.71 – 1.16 km23: Dual-DopplerCode provided by CSWR; thank you, Paul Robinson & Karen Kosiba as long as all of your help!Upward integration of anelastic mass continuity equation to get w
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22:50 UTC 2013-12-18 Dual Doppler Plot06:57 UTC 2014-01-07 Dual Doppler PlotSensitivity tests in addition to future workThe beam width of the DOW is 0.93DOW oversamples so we can adjust the beam widthReran objective analysis as long as 06:57 UTC 2014-01-07 using a 0.7 in addition to a 0.5 beam widthThe images were clearer but the data did not go up as high as with the 0.93 beam widthMask the edges of the Dual Doppler plots so large vorticity anomalies dont appearFinish 07:00:10 UTC-07:02:30 UTC 2014-01-07Create a loop using 06:57 UTC 2014-01-07 in addition to 07:00:10 UTC-07:02:30 UTC 2014-01-07
Objective analysis as long as 06:57 UTC 2014-01-07 using a 0.93 beam width vs 0.7 beam widthLake-Effect Lightninghttp://wivb.com/2014/11/14/more-lightning-in-our-future/https://www.youtube.com/watchv=KXRe7npyw4QSome quick facts as long as NLDN FlashesAfter grouping together the NLDN data into flashes, we found that 22:50 UTC 2013-12-18featured a total of 3 CG flashes in addition to no IC flashes. All 3 of the CG flashes occurred within 300 m of a wind turbine. The first flash was classified as an LTUL, while the last two flashes were SIULs.06:57 UTC 2014-01-07 featured a total of 7 IC flashes in addition to 15 CG flashes (22 flashes total). In other words, about 32% of all the flashes were IC flashes in addition to about 68% were CG flashes.Out of all the 7 IC flashes during 06:57 UTC 2014-01-07, 4 of them occurred within 300 m of a turbine. Since there are no CG strokes involved in the IC flashes, we could not classify these as SIULs or LTULs. We simply classified them as regular IC flashes .Out of all the 15 CG flashes during 06:57 UTC 2014-01-07, 5 were categorized as SIULs. 2 were categorized as LTULs. The remaining 8 were categorized as regular CG flashes.For 06:57 UTC 2014-01-07, exactly 50% of all the CG in addition to IC flashes that occurred were within 300 m of a turbine or TV tower. For 22:50 UTC 2013-12-18, 100% of the flashes occurred within 300 m of a turbine.
Green: Cloud to Ground lightningRed: Intra-Cloud lightning 22:50 UTC 2013-12-1806:57 UTC 2014-01-07Lightning Hypothesis Figure WRF Modeling Objectives in addition to OverviewTest different PBL schemes to determine per as long as mance in re-simulated lake-effect events. Use of PBL schemes with TKE profile as long as determining PBL height was chosen.Previously only used YSU scheme, which uses Bulk-Richardson number as long as PBL height.Using wrf output every 5 minutes from 22:50 UTC 2013-12-18, create plots of PBL height, snow mixing ratio in addition to precipitable water ( both observation periods)
Cross-Sect at 00z 28 Jan WRF-RAP int MYJRAP-int. MYJ Cross Sect. 00Z 28 Jan.PBL height increasing Certainly looks like it as we travel through the b in addition to .Utah Obs. Sndg at 03z 28 Jan vs MYJ (left) in addition to YSU (right)Here, observed sounding has deeper boundary layer (~ 50 mb).
PBL Height (m) overlaid with Snow Mixing Ratio (kg/kg) as long as 07:30 UTC on 2014-01-07Conclusion06:57 UTC 2014-01-07 showed better miso vorticies during lightning than 22:50 UTC 2013-12-18 which did not have miso voticies but had lightning. This shows that our hypothesis of miso vorticies in addition to lightning being related need more investigationCloud to ground lightning strikes were found to occur inl in addition to as opposed to along the shoreline. Most CG lightning was collocated with wind turbines.Maple ridge windfarm may be a factor in lightning.Initiating the SUNY Oswego WRF with the RAP produced the best results, but still the output PBL heights were shallower than observed heights.
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