SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Enhanced Wind Imaging & Modeling Focus Conference

wyoming-sparks avatar
wyoming-sparks
11 diapositives · 208 Views · Nov 19, 2014

Join us on June 5th, 2013 at 11:00 AM for discussions on improved Rankine vortex wind images, modeling goals, literature review, and WRF-LES setup. Explore potential improvements in wind interpolation methods. Collaborate with leading researchers in the field.

#enhanced wind imaging & modeling focus conference #enhanced wind imaging & modeling focus conference ppt #powerpoint #presentation
Enhanced Wind Imaging & Modeling Focus Conference - slide 1
01 / 11Enhanced Wind Imaging & Modeling Focus Conference
1 / 17

Télécharger la présentation

Enhanced Wind Imaging & Modeling Focus Conference
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. CIMMSE TC Wind GroupConference Call Wednesday, June 5th, 2013 11:00 AM

  2. Agenda • Improved modified Rankine vortex interpolated wind images • Modeling Focus • Literature review • Goals of simulations • Initial WRF-LES setup

  3. Improved Modified Rankine Vortex Interpolated Wind Images • Jonathan had requested images of some of the storms with the improved error function be posted online/be made available for download • Select images have been posted to: https://sites.google.com/a/ncsu.edu/modified-_rankine_improvements/ • Collaborators are encouraged to examine images and provide comments • Where to go from here in terms of R2O?

  4. Modeling Focus • Climatology aspect of the study has largely been completed • Gust factors as a function of sustained wind speed, wind direction, and distance from coastline using ASOS data • NDFD verification of recent storms impacting the region • Potential improvement to the wind interpolation method used in the TCMWindTool • Now can approach from more of a dynamical perspective with aid of WRF • WRF-LES option as of WRF V3

  5. Resolved  Subgrid Large-Eddy Simulation (LES) Subgrid Resolved Log(Ek) kc = /f Log(k) Physical Space Fourier Space (Courtesy: Dr. Sukanta Basu, NC State)

  6. Literature Review • WRF-LES has been used quite frequently in operational community for examining small scale turbulence in the boundary layer • Very few studies have used WRF-LES for tropical cyclones

  7. Modeling Goals/Focuses • Use Irene (2011) as a first case study • Conducted 24 hour WRF-LES simulation near location of landfall beginning at 0000 UTC 27 August • Examine large eddy circulations within the boundary layer • Conduct TKE budget to explore relative magnitude of contributions of the various terms • Examine gust factors at various locations within inner domain (compare to the climatology analysis we have conducted) • Sensitivity studies • Lower level stability • Storm intensity • Other suggestions?

  8. Modeling Setup • 5 Domains, with innermost two domains having no PBL scheme • Use of 1/16° daily SST analyses, 0.5° six hourly GFS analyses for boundary conditions • Grid Spacing (consistent with Zhu et al. 2008): • D1: 8.1 km D3: 900 m D5: 100 m • D2: 2.7 km D4: 300 m

  9. DiscussionNext Conference Call: Wednesday, July 10th, 2013 11 AM