HFIP Experimental Products

Guide to Products

Specifications of the HFIP Global Models

Models

Horizontal resolution

Vertical levels

HFIP Stream

PBL

Radiation

Initialization

GFS/GSI (OPS)

27 km

64

1.0

GFS Non-Local PBL

GFDL/RRTM scheme

NCEP GSI hybrid EnKF/var

FIM

15 km

64

1.5

GFS Non-Local PBL

GFDL/RRTM scheme

NCEP GSI hybrid EnKF/var

GFS/ESRL EnKF

T878 - ~22 Km

64

2.0

GFS Non-Local PBL

GFDL/RRTM scheme

ESRL hybrid EnKF/var

Specifications of the HFIP Global Ensemble Models

Models

Horizontal resolution

Vertical levels

HFIP Stream

PBL

Radiation

Initialization

GFS/EnKF Ensemble

T382 - ~45 km (ensemble)

64

2.0

GFS Non-Local PBL

GFDL/RRTM

scheme

ESRL hybrid EnKF/var 

FIM
Ensemble

60km (2nd-order) and 30km (4th-order via sjet) - ensembles

64

2.0

GFS Non-Local PBL

GFDL/RRTM scheme

ESRL hybrid EnKF/var

Merged FIM/GFS Ensemble

as shown above

64

2.0

 “

 “

ESRL hybrid EnKF/var

Specifications of the HFIP Regional Models

Models

Nesting /

Horizontal

Resolution (km)

Vertical levels

Core

HFIP Stream

PBL

Radiation

Initial and Boundary Conditions

Initialization

HWRF (OPS)

2

27/9/3

42

NMM

1.0

GFS Non-Local PBL

GFDL

Scheme

GFS

GSI hybrid var/EnKF

GFDL (OPS)

3

55/18/9

42

GFDL

1.0

GFS Non-Local PBL

Schwarzkopf-Fels (longwave) / Lacis-Hansen (shortwave)

GFS

GFDL Synthetic Bogus Vortex

GFDL (Ens)

3

55/18/9

42

GFDL

1.5

GFS Non-Local PBL

Schwarzkopf-Fels (longwave) / Lacis-Hansen (shortwave)

GFS

GFDL Synthetic Bogus Vortex

HWRF-HRD/EMC

27-9-3

3

27/9/3

42

NMM

2.0

GFS Non-Local PBL

GFDL

Scheme

GFS

EnKF with aircraft data

WRF ARW (NCAR)

3

36/12/4

36

ARW

2.0

YSU

RRTMG (longwave and shortwave)

GFS

EnKF method in a 6-hour cycling mode

COAMPS-TC

3

45/15/5

(15/5 km following the
storm)

40

COAMPS

1.5

Navy 1.5 Order Closure

Harshvardhan

NOGAPS (could use GFS if desirable)

3D-Var data assimilation with synthetic
observations

Wisconsin Model
UW NMS

Grid 1: 200 x 150 points @ 45km
Grid 2: 156 x 156 points @ 4.1km

43

1.5

MICROPHYSICS: Tripoli/Flatau with 1 liquid and 2 ice categories
LAND SURFACE MDL: NOAH LSM

RADIATION: RRTM LW & SW
CUMULUS: none

RRTM

GFS/GFDL

Penn State
AHW-EnKF

3

27/9/3 km

43

AHW

1.5

YSU

RRTM (longwave) / Dudhia (shortwave)

GFS

3-h cycling EnKF w/ conventional and reconnaissance observations