1. 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

2. HNNMB progress/status
Progress related to hurricane applications:
- Available/done
Two-way interactive nests in NMMB (Tom)
Nest tracking algorithm to NMMB (Tom) ( 2012? hwrf version)
Transition of HWRF initialization to NMMB (Qingfu, v2012)
Implementation of HWRF physics to NMMB (Weiguo, v2014)
EMC repository:
-Ongoing
New tracking and in-model diagnosis system
2015 HWRF physics upgrade
Ocean coupling
Data assimilation

3. NMMB-hurricane flowchart
To be replaced by NMMB-DA/INIT
To be replaced by spectral data
Vortex
Initial conditions
GFS data
Boundary Conditions
namelist.nps
NPS
configure_file_d01
configure_file_d02
configure_file_d03
NMMB
Post/Tracker
Analysis/plots

4. NMMB Hurricane simulations
domains, feedback=0.5
Phys /domain
HNMMB
HWRF
Turbulence/pbl:
GFSHUR
sfc_layer:
GFDL
land_surface:
GFDLSLAB
convection:
SASHUR
microphysics:
FER
shortwave:
longwave:
Ocean No
Yes DA
Domain:
Dt=45/15/5s
B: 305x305 (27km)
154x133(9km)
255x231(3km)
E: 216x432(27km)
106x204(9km)
198x354(3km)

5. Results Arthur 01L Both hwrf and nmmb did good job 08L
Hwrf gave weaker intensity, NMMB better,
-- Track/intensity plots ?
--- show nest move well along track ?
--- structure ? Vertical cross-section ?

6. 2-km Idealized HNMMB

7. Smagorinsky-type tunable
2-km idealized HNMMB
Phys /domain
HNMMB
hwrfphys
NAM-like phys
HWRF
Turbulence/pbl:
GFSHUR
MYJ
sfc_layer:
GFDL
land_surface:
GFDLSLAB
NOAH
convection:
SASHUR
BMJ
microphysics:
FER
shortwave:
longwave:
Ocean
Constant SST
Initialization
Idealized Vortex
Horizontal Diffusion
Smagorinsky-type tunable
Domain:
dt =30/10/3.333s
B: 451x451(18km)
231x201(6km)
381x345(2km)
E: 288x576(18km)
106x204(9km)??
198x354(3km)??

8. NMMB with hwrf phys
NMMB with nam phys
NAM uses z0 ~ ustar^2/g …., TKE PBL,
NAM-phys gives small size, strong TC

9. HWRF phys
NAM phys

10. 34kt, 50kt, and RMW Size from HNMMB
At 84hr
HWRF phys
NAM phys

11. 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

12. Track wrong when resolution is high, …
Track wrong when resolution is high, …. (maybe some spots with low pressure …. ), For example, 2-km HNMMB, …..,

13. NMMB-hurricane in NEMS
Plans:
NMMB-hurricane in NEMS
NMMB-hurricane
Coupled with many other components

14. Plan We have a HNMMB development plan: Target:
2015 continue development/tests
2016 tests/parallel real-time run
2017 real-time run

15. Lead/support Personnel
Task
Status
Lead/support Personnel
Note
Start/Complete date
Transition of HWRF physics suite to NMMB
Done
Weiguo
Lin …
Update to 2015 hwrf version
Need tests
Update by June, 2015
HWRF nest motion algorithm to NMMB
Shortly
Sam
With some in-model diagnostic fields
June/May to Sep, 2015
HWRF vortex initialization to NMMB
almostDone
Qingfu
Lin…
April to June 2015
Ocean
POM/HYCOM to NMMB
Bin
Dmitry
Hyun-Sook
Regional Hycom
POM: April to Oct 2015
HYCOM: planned
Ocean coupling
Zhan
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
Post processing
Graphics
Lin, Keqin
Sam Weiguo ..
now OK to use ncep-post,
Sep to Oct, 2015
Script
Sam, Zhan
Mingjing ,Keqin
HWRF-like Python script
Sep to Nov, 2015

16. Code management
All source codes, scripts, utilities and libraries, etc. should be saved at EMC SVN repository (
Development will be conducted in “hnmmb/branches”.
We already have a project in EMC SVN site.
branches/
tags/
trunk/

17. Code management 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/

18. Summary 1 2
Future work: improve nest motion algorithm, other components (e.g., DA + init) from HWRF system, …, work with other components under nems

19. Backup slides

20. HWRF physics available in NMMB
Following physics schemes used in operational HWRF have been added to NMMB:
GFSPBL scheme
GFDL surface layer plus GFDL land surface scheme
SAS scheme
MESO-SAS scheme
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.