11

High Frequency HWRF output

and

solar radiation issue related to ocean coupler

22

Purpose and motivations

► Requested by NHC forecasters in order to diagnose the model behaviors (HFIP diagnostics efforts)

►Every time step output of storm location (lat/lon), minimum sea level pressure and it location (lat/lon), and maximum 10m wind speed and its location (lat/lon)

►Because of MPI, it is not very straight-forward task need some MPI-related coding

33

Halo

tile-1

0th proc

tile-2

1st proc

44

Code changed: dyn_nmm/solve_nmm.F

dyn_nmm/module_NEST_UTIL.F

parm/hwrf_namelist.inout

Registry/Registry.NMM_NEST

Main flows:

1. Calculate MSLP and 10m wind speed from model variables

2. Find the minimum MSLP (or maximum 10m wind speed) value and its location (I, J) at each tile.

3. Identify the global minimum or maximum value among those in each tile

4. Locate the tile (processor) which contains the maximum 10m wind and broadcast it to other tiles to write an file

55

Find max 10m wind and I1/J1

Find max 10m wind and I2/J2

1)

2) Find maximum 10m wind speed over whole tiles and its location using wrf RSL library

3) Using do-loop, identify the latitude and longitude of max wind and its tile number

4) Broadcast the output of (3) to all tiles to write a file

66

solve_nmm.F

!--------------------------------------------------------------------------------------------------------------!! HIGH FREQUENCY OUTPUT (STORM CENTER, MIN MSLP, MAX WINDS)! FOR NEST DOMAIN (9KM) KWON 2011.4!!-------------------------------------------------------------------------------------------------------------- call nl_get_high_dom(1,dom) call nl_get_high_freq(1,hf)

IF(grid%id==dom.AND.HF) THEN CALL HIGH_FREQ(GRID%NTSD,GRID%DT,GRID%HLAT,GRID%HLON & ,GRID%U10,GRID%V10,grid%pint,grid%t,grid%q & ,grid%fis,grid%pd,grid%pdtop,grid%deta1,grid%deta2 & ,mype,mpi_comm_comp & ,IDS,IDF,JDS,JDF,KDS,KDE & ,IMS,IME,JMS,JME,KMS,KME & ,ITS,ITE,JTS,JTE,KTS,KTE )

ENDIF!!------------------- END OF HIGH FREQUENCY OUTPUT MODULE ----------------------------

77

Subroutine high_freq

. .Calculating MSLP and 10m wind speed . .!! FIND MINIMUM MSLP VALUE AND LOCATION AT EACH TILE! MINGBL_MSLP=MINVAL(MSLP(ITS:ITF,JTS:JTF))! DO J = JTS, MIN(JTE,JDE) DO I = ITS, MIN(ITE,IDE) IF(MSLP(I,J) .EQ. MINGBL_MSLP)THEN IMSLP=I JMSLP=J ENDIF ENDDO ENDDO! CALL WRF_DM_MINVAL(MINGBL_MSLP,IMSLP,JMSLP) : WRF specific function (external/RSL_LITE/module_dm.F)

88

Subroutine high_freq (cont)

!! LOCATE THE LAT LON OF ALL POINTS! DO J = JTS, MIN(JTE,JDE) DO I = ITS, MIN(ITE,IDE)! IF(I.EQ.IWIND.AND.J.EQ.JWIND) THEN WLAT = HLAT(I,J) WLON = HLON(I,J) WLAT_TASK_ID = MYPE write(0,*) 'HHFO:MAX 10M W ',NTSD,DT*NTSD,MAXGBL_WIND*1.94,WLAT,WLON ENDIF! ENDDO ENDDO!! Boradcast I J indices to all tiles!!! CALL MPI_BCAST(CLAT,1,mpi_real,CLAT_TASK_ID,MPI_COMM_COMP,IERROR)! CALL MPI_BCAST(CLON,1,mpi_real,CLAT_TASK_ID,MPI_COMM_COMP,IERROR)

99

Subroutine high_freq (cont)

!#if defined(DM_PARALLEL)! if(wrf_dm_on_monitor()) then! WRITE(75,*) NTSD,DT*NTSD,ICEN,JCEN,CLAT,CLON, &! MINGBL_MSLP/100.,IMSLP,JMSLP,PLAT,PLON, &! MAXGBL_WIND*1.94,IWIND,JWIND,WLAT,WLON! ENDIF !#endif

1010

Output (example)Output (example)

AL, 07, 2010082900, 03, HWRF, 0, 165N, 0545W, 54, 987, 167N, 0542W, 162N, 0545WAL, 07, 2010082900, 03, HWRF, 18, 165N, 0545W, 54, 986, 167N, 0542W, 162N, 0545WAL, 07, 2010082900, 03, HWRF, 36, 165N, 0545W, 53, 985, 167N, 0542W, 162N, 0545WAL, 07, 2010082900, 03, HWRF, 54, 165N, 0545W, 53, 984, 167N, 0542W, 162N, 0545WAL, 07, 2010082900, 03, HWRF, 72, 165N, 0545W, 53, 983, 167N, 0542W, 162N, 0545W

. . .AL, 07, 2010082900, 03, HWRF, 453564, 332N, 0759W, 90, 955, 324N, 0758W, 333N, 0759WAL, 07, 2010082900, 03, HWRF, 453582, 332N, 0759W, 90, 955, 324N, 0758W, 333N, 0759W

Forecast time in second

Location of min MSLP

Max w, min slp

1111

Solar radiation transfer to the ocean coupler

In solve_nmm,F

call atm_dofluxes (twbs,qwbs,….rswin, rlwin, radot, rswout….)

4components of radiation

rswin and rswout are instantaneous values at radiation calling time step. However, it should be transfer zenith angle corrected values like a land-surface module.

1212

In module_PHYSICS_CALLS.F

RSW_NET_SFC= (RSWIN(I,J)-RSWOUT(I,J))*FACTRS

FACTRS = CZEN(I,J) / CZMEAN(I,J)

czen: cosine of solar zenith angle at a physics time step czmean: time mean solar zenith angle over radiation time step

1313

t

rad rad rad

surface physics time steps