outline regional hurricane nmmb progress hnmmb simulations and comparisons - hnmmb configuration -...
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![Page 1: Outline Regional Hurricane NMMB Progress HNMMB Simulations and comparisons - HNMMB configuration - Real case simulations (NMMB vs HWRF vs NAM) Arthur 01L;](https://reader035.vdocuments.site/reader035/viewer/2022062300/56649d6e5503460f94a4fb35/html5/thumbnails/1.jpg)
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Outline• Regional Hurricane NMMB Progress• HNMMB Simulations and comparisons - HNMMB configuration - Real case simulations (NMMB vs HWRF vs NAM) Arthur 01L; GONZALO 08L - 2-km Idealized simulations (NMMB vs HWRF)• Issues and plans• Summary and future work
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HNNMB progress/status Progress related to hurricane applications: - Available/doneo Two-way interactive nests in NMMB (Tom)o Nest tracking algorithm to NMMB (Tom) ( 2012? hwrf version)o Transition of HWRF initialization to NMMB (Qingfu, v2012)o Implementation of HWRF physics to NMMB (Weiguo, v2014)
EMC repository: https://svnemc.ncep.noaa.gov/projects/hnmmb
-Ongoingo New tracking and in-model diagnosis systemo 2015 HWRF physics upgradeo Ocean coupling o Data assimilation
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Vortex Initial conditions
GFS data Boundary Conditions
NPS
NMMBconfigure_file_d01configure_file_d02configure_file_d03
namelist.nps
Post/Tracker
Analysis/plots
To be replaced by spectral data
To be replaced by NMMB-DA/INIT
NMMB-hurricane flowchart
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NMMB Hurricane simulations27-9-3 domains, feedback=0.5
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Phys /domain HNMMB HWRF
Turbulence/pbl: GFSHUR GFSHUR
sfc_layer: GFDL GFDL
land_surface: GFDLSLAB GFDLSLAB
convection: SASHUR SASHUR
microphysics: FER FER
shortwave: GFDL GFDL
longwave: GFDL GFDL
Ocean No Yes
DA No Yes
Domain:Dt=45/15/5s
B: 305x305 (27km)154x133(9km)255x231(3km)
E: 216x432(27km) 106x204(9km) 198x354(3km)
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ResultsArthur 01L
Both hwrf and nmmb did good job
08LHwrf gave weaker intensity, NMMB better,
-- Track/intensity plots ?--- show nest move well along track ?--- structure ? Vertical cross-section ?
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2-km Idealized HNMMB
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2-km idealized HNMMBPhys /domain HNMMB
hwrfphysHNMMB
NAM-like physHWRF
Turbulence/pbl: GFSHUR MYJ GFSHUR
sfc_layer: GFDL MYJ GFDL
land_surface: GFDLSLAB NOAH GFDLSLAB
convection: SASHUR BMJ SASHUR
microphysics: FER FER FER
shortwave: GFDL GFDL GFDL
longwave: GFDL GFDL GFDL
Ocean Constant SST Constant SST Constant SST
Initialization Idealized Vortex Idealized Vortex Idealized Vortex
Horizontal Diffusion Smagorinsky-type tunable
Smagorinsky-type tunable
Smagorinsky-type tunable
Domain:dt =30/10/3.333s
B: 451x451(18km)231x201(6km)381x345(2km)
B: 451x451(18km)231x201(6km)381x345(2km)
E: 288x576(18km) 106x204(9km)?? 198x354(3km)??
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NMMB with nam physNMMB with hwrf phys
NAM uses z0 ~ ustar^2/g …., TKE PBL,
NAM-phys gives small size, strong TC
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HWRF phys
NAM phys
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34kt, 50kt, and RMW Size from HNMMBAt 84hr
HWRF phys NAM phys
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Issues:Some issues for NMMB-hurricane still need to be addressed, for example, nest motion (vortex not very organized …)
Nests do not move with vortex
Bad track
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Track wrong when resolution is high, …. (maybe some spots with low pressure …. ), For example, 2-km HNMMB, …..,
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Plans:
http://cog-esgf.esrl.noaa.gov/projects/couplednems/architecture
NMMB-hurricane
Coupled with many other components
NMMB-hurricane in NEMS
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Plan
We have a HNMMB development plan:
Target:• 2015 continue development/tests• 2016 tests/parallel real-time run• 2017 real-time run
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Task Status Lead/support Personnel
Note Start/Complete date
Transition of HWRF physics suite to NMMB
Done WeiguoLin…
Update to 2015 hwrf versionNeed tests
Update by June, 2015
HWRF nest motion algorithm to NMMB
Shortly SamWeiguo…
With some in-model diagnostic fields
June/May to Sep, 2015
HWRF vortex initialization to NMMB
almostDone
QingfuLin…
Need tests April to June 2015
Ocean POM/HYCOM to NMMB
Shortly BinDmitryHyun-Sook
Regional Hycom POM: April to Oct 2015HYCOM: planned
Ocean coupling Shortly Dmitry BinZhan
progress in nems’s NUOPC is slow. May need a hwrf-like coupler for use in a year
April to Sep 2015
HWRF data assimilation
Planned Mingjing, Jason Bin, Banglin
GSI-EnKF ?Interface/data change
April to Sep 2015
Post processingGraphics
Planned Lin, KeqinSam Weiguo ..
now OK to use ncep-post, Sep to Oct, 2015
Script Planned Sam, ZhanMingjing ,Keqin
HWRF-like Python script Sep to Nov, 2015
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Code management
• All source codes, scripts, utilities and libraries, etc. should be saved at EMC SVN repository (https://svnemc.ncep.noaa.gov/projects/hnmmb).
• Development will be conducted in “hnmmb/branches”.
• We already have a project in EMC SVN site.
https://svnemc.ncep.noaa.gov/projects/hnmmb branches/ tags/ trunk/
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Tentative structure of hnmmb/trunk:
sorc/ EMCGSI/ vortex_init/ NMMB/ NPS/ nmmb-coupler/ pomtc/ hycom/ gfdl-vortextracker/ post/ util/ lib/ ush/ scripts/ graphics/ regression_tests/
Code management
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Summary 1 2 Future work: improve nest motion algorithm, other
components (e.g., DA + init) from HWRF system, …, work with other components under nems
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Backup slides
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HWRF physics available in NMMBFollowing physics schemes used in operational HWRF have been added to NMMB:
1. GFSPBL scheme 2. GFDL surface layer plus GFDL land surface scheme3. SAS scheme 4. MESO-SAS scheme5. Add empirical z0 for hurricane to MYJ surface scheme
NMMB has “fer”, “fer_high” micophysics schemes, and “gfdl”, “rrtmg” for radiation; those are very similar to HWRF’s.