Modeling of Mesoscale Phenomena at the Mesoscale Modeling Laboratory Dr. Yuh-Lang Lin Dr. Michael L....
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Transcript of Modeling of Mesoscale Phenomena at the Mesoscale Modeling Laboratory Dr. Yuh-Lang Lin Dr. Michael L....
Modeling of Mesoscale Modeling of Mesoscale Phenomena at the Mesoscale Phenomena at the Mesoscale
Modeling LaboratoryModeling Laboratory
Dr. Yuh-Lang Lin
Dr. Michael L. Kaplan
Department of Marine, Earth, and Atmospheric Sciences
North Carolina State University
Mesoscale Modeling Mesoscale Modeling LaboratoryLaboratory
Tropical Cyclone Research Projects
Mesoscale Alpine Program Research
http://mesolab.meas.ncsu.edu
Current Projects:
Forest Fire Research
RTTM Research Wake Vortex Project
MEAS
Contact: [email protected]
Leading ScientistsLeading ScientistsDr. Yuh-Lang Lin, Professor, MEAS, NCSUDr. Yuh-Lang Lin, Professor, MEAS, NCSUDr. Michael L. Kaplan, Research Asso. Prof., MEAS, NCSUDr. Michael L. Kaplan, Research Asso. Prof., MEAS, NCSU
Current StudentsCurrent StudentsPh.D.: C. M. Hill, C. Huang, H. D. Reeves, J. A. ThurmanPh.D.: C. M. Hill, C. Huang, H. D. Reeves, J. A. ThurmanM.S.: Z. G. Brown, A. M. Hoggarth, M. K. Kiefer, M.S.: Z. G. Brown, A. M. Hoggarth, M. K. Kiefer,
K. E. Robertson, N. C. Witcraft K. E. Robertson, N. C. Witcraft
B.S.: B.S.: R. R. Clark, C. K. Lauer R. R. Clark, C. K. Lauer
Computing FacilitiesComputing FacilitiesMesoLab linux cluster; access to PAMS linux cluster, and MesoLab linux cluster; access to PAMS linux cluster, and NCSU HPC and NCAR supercomputers. NCSU HPC and NCAR supercomputers.
Postdoctoral scholars and graduate students sponsored in the past:
Postdoc: D. Schowalter, R. P. Weglarz, S. Shen, C.-T. Kao, J. Han, J. J. Charney, B.-W. Shen
Ph.D.: N.-H. Lin, H.-Y. Chun, R. P. Weglarz, T.-A. Wang, J. Wang, R.A. Rozumalski, J. Egentowich, J. Han, C. M. Chu, F. Ding, B.-W. Shen, D. A. DeCroix,
K. D. Pfeiffer, S. Chiao, J. D. Cetola M.S.: I.-C. Jao, B. D. Felton, R. L. Deal, M. S. Kulie,
D. W. Hamilton*, J. D. Shaltanis, L. E. Joyce, K. M. Lux, C. M. Hill, S.-Y. Chen, S. D. Slussers (*employeed at NASA/LaRC)
Funding HistoryFunding History:: We have been funded by Air Force, IBM, We have been funded by Air Force, IBM, NASA/LaRC, NASA/GSFC, NOAA, NSF, ONR, RTI, NASA/LaRC, NASA/GSFC, NOAA, NSF, ONR, RTI, UCAR, USFS, etc. UCAR, USFS, etc.
Aviation Turbulence and Forest Fire Projects– Real-Time Turbulence Model (RTTM) project
(Funded by NASA/LaRC)– Wake Vortex Avoidance System (Wake VAS)
(Funded by NASA/LaRC)– Forest Fire Project (Supported by US Forest Service)
Current students involved: C. Huang (Ph.D.)
Z. G. Brown (MS) A. M. Hoggarth (MS)M. K. Kiefer (MS)C. K. Lauer (BS)
Presented earlier by Dr. Mike Kaplan. (see our home page for details)
Mesoscale Alpine Program (MAP) Mesoscale Alpine Program (MAP) ResearchResearch
Objective: Using mesoscale models and obs. data to study heavy orographic rainfall events observed during MAP IOPs.
Collaborators and students involved:
– Dr. S.-H. Chen (Assis. Prof., UC-Davis)– H. D. Reeves (Ph.D.) – J. A. Thurman (Ph.D.)– S. Chiao (finished Ph.D. in Dec. 2002)– S.-Y. Chen (finished M.S. in Aug. 2003)
Funded by NSF
MAP Field Experiment (15 August to 15 November 1999)
A Schematics of Environment Conducive to Heavy Orographic Rainfall for IOP-2B (Lin et al. 2003)
Synoptic and Mesoscale Environments for
MAP IOP-8
10/20/12 to
10/21/12UTC
1999
Domains and Geography
MM5MM5
MP: LFOMP: LFO
dx=45 kmdx=45 km
CP: Betts-CP: Betts-MillerMiller
dx=15 kmdx=15 km Grell+LFOGrell+LFOdx =5 kmdx =5 km Grell+LFOGrell+LFO
IOP-8 34h Accumulated Rainfall(10/20/12-10/21/22UTC)
Simulated Observed
Geopotential Temperature and Wind Fields (850 mb)
Numerically Simulated
10/20/18Z10/21/00Z10/21/06Z10/21/12Z
Tropical Cyclogenesis ResearchTropical Cyclogenesis Research Objective: Using satellite imagery, mesoscale
models and reanalysis data to study the generation and propagation of tropical cyclone precursors.
Students involved: – C. M. Hill (Ph.D.)– K. E. Robertson (M.S.)– C. Huang (Ph.D.)
Funded by Office of Naval Research
Hurricane Alberto (2000)Hurricane Alberto (2000) A mesoscale vortex and convective system was
originated from Ethiopian Highlands triggered the hurricane. (Hill and Lin, GRL 2003)
The Alberto vortex went through a series of genesis and lysis life cycle over the African continent before triggering tropical depression.
Easterly waves may also be generated at the Ethiopian Highlands and trigger tropical cyclones in the eastern Atlantic Ocean.
Alberto Precursor: MesovortexAlberto Precursor: MesovortexIR Satellite ImageryIR Satellite Imagery
Alberto Mesovortex: Alberto Mesovortex: Analyzed from theAnalyzed from the
ECMWF 0.5ECMWF 0.5oo Re-analysis data Re-analysis data
Vorticity at 700mb
Orographic Effects on Tropical Orographic Effects on Tropical Cyclones (TC)Cyclones (TC)
Objective: To investigate orographic effects on TC tracks and rainfall
Collaborators and Students Involved: – Dr. Y.-H. (Bill) Kuo (Senior Scientist, NCAR)– Dr. C.-Y. Huang (National Central U., Taiwan)– Dr. C.-C. Wu (National Taiwan U., Taiwan)– C. M. Hill (Ph.D.)– N. C. Witcraft (M.S.)– K. E. Robertson (M.S.)– R. R. Clark (BS)– S.-Y. Chen (M.S., Aug. 2003)
Supported by UCAR/AWARE Program
Tracks around HispaTracks around Hispannolaola
Tracks around Taiwan Tracks around Taiwan (Wang 1980)(Wang 1980)
Continuous Track•Faster, stronger
Discontinuous track•Slower, weaker
Bilis IR Imagery LoopBilis IR Imagery Loop
Model DomainsModel Domains
45 km domain (91 X 91) 15 km domain (130 X 130)5 km domain (115 X 91)
Reformation of the surface lowReformation of the surface low850 mb height & temperature
7/29/09Z 7/29/15Z 7/29/21Z
Model Simulated Rainfall vs Observation Model Simulated Rainfall vs Observation for Typhoon Bilis (2000)for Typhoon Bilis (2000)
Comparison of modeled and observed rainfall for 8/22/12Z to 8/23/00Z