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NOAA ISET CSC Modeling Group at NC A&T Research Activities

NOAA ISET CSC Modeling Group at NC A&T Research Activities. Partner Universities of the NOAA ISET Center NC A&T State University NC State University University of Minnesota California State University – Fresno City University of New York Fisk University – Tennessee

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NOAA ISET CSC Modeling Group at NC A&T Research Activities

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  1. NOAA ISET CSCModeling Groupat NC A&T Research Activities

  2. Partner Universities of the • NOAA ISET Center • NC A&T State University • NC State University • University of Minnesota • California State University – Fresno • City University of New York • Fisk University – Tennessee • University of Alaska - Southeast

  3. ISET Research Thrust Areas and their Interactions Thrust Area I Sensor Science and Technology • Sensor Data • Societal Impacts • Weather & Climate Prediction • Sensor Data • Data Assimilation, • Analysis & Distribution Technology Development For Investigation, Understanding, Measuring & Quantifying Climate & Environmental Change Thrust Area II Global Observing Systems: Analysis of Hurricanes & Storms Thrust Area III Data mining & Fusion and Geospatial Data Models • Model Initialization • Pattern Recognition • Weather & Climate • Prediction

  4. Thrust Area II: Research Projects and Lead Researchers

  5. Idealized Numerical Simulations (Huang & Lin) AEW-like disturbances can be produced by vortex shedding associated with flow over mountains (e.g., EH).

  6. Global Modeling of AEW-MCS Generation (A&T: Tang, Lin; Students: James & Van) • Adopt FIM model developed by the NOAA/ESRL (Lee and Koch) Icosahedral Model Icosahedral Grid

  7. Generation ofAEW-MCS in Eastern Africa (Lin, Liu, Tang; Students: James, Wilson, Chaunte, Riem) Click here to see animation

  8. Origin of Pre-Debby (2006) AEW-MCS

  9. African Dust Effects on Hurricane Helene (2006): Temporal evolution of Pmin & optical depth (Bae & students) Hurricane; Dust & sulfate & absorbing smoke Tropical depression; Sulfate & Heavy absorbing smoke Extratropical; NA Tropical storm; Dust & sulfate TS Debby (2006) behaved similarly.

  10. Modeling Effects of Saharan Dust on Hurricanes (Bae, Lin, Tang, Roop) Courtesy of NASA-TOMS

  11. Effect of ocean spray lubrication effect TC intensity (Rastigejev, Lin) Sandwich model: The effect of the ocean spray on the hurricane dynamics is two-fold : Ocean spray Atmosphere • Thermodynamic: Evaporation of droplets in the ocean spray causes cooling of the atmosphere (Lighthill, 1999) • Mechanical: Significant reduction of turbulence induces a sharp flow acceleration (Barenblatt et al., 2005) Ocean

  12. We found that the mixing length reduction significantly enhances lubrication effect to be more than twice forKoc=0.5. We developed an E-e closure model to help verify our results and provide more realistic calculation. Uses full prognostics equations for turbulent kinetic energy and dissipation rate with no mixing length assumption

  13. Simulations of Landfalling Hurricanes at NC A&T (Dr. Roop) Ike (2008) Gustav (2008) Hanna (2008) Kyle (2008)

  14. Real Time Numerical Weather Prediction using WRF-ARW Version 3.0(Roop, Tang, Lin, Ng (MS Stu.)) On http://noaaiset.org or http://iset1.ncat.edu

  15. TRACK & INTENSITY (Roop, Tang, Lin) TRACK 03Z21-00Z26; SST & SHEAR (850-200mb) 00Z25

  16. Effects of SST on TC Intensification Yaw Kyei Katrina (2005) OHC Ivan (2004) OHC Rita (2005) OHC From E. C. Uhlhorn NOAA

  17. Research on Coupling of Atmospheric & Hydrological Models - Yong Jung and Yuh-Lang Lin WRF-ARW GFS/NARR Precipitation Lumped or Distributed Basin Data Watershed Characteristics HEC-HMS Procedure Output Drainage Network Hydrologic Results Severe Flood Warning

  18. Model Run • - South Central Texas (San Antonio River Basin) • - June 20, 2002 ~ July 11, 2002 • - Deaths: 12 • - Damage: 1 billion (Approx.) From: www.tceq.state.tx.us/.../water/tmdl/atlas.htm

  19. Simulation of Hurricane Javier (2004) over Eastern Pacific (Lin; MS Stu.: Ng) Click here to see animation

  20. Hurricane Ivan (2004) passed over the Appalachians (Lin, MS Student: Ng, Covell)

  21. Accumulated Ivan Precipitation (9/16-9/19/2004)

  22. Simulation of Hurricane Ivan (2004) over the Appalachians (Lin, MS Student:Ng, Covell) Click here to see animation

  23. WRF-Simulated Rainfall over Puerto Rico during the Passage of Hurricane Jean (Colon-Pagan & Lin) EXP03 EXP06 EXP10 EXP07

  24. Simulation of Pre-Helene AEW (Spinks, Tang, Lin)

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