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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

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.