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20000830: McIDAS RTGRIDS MRF/AVN data (cont.)

>From: Mark Tucker <address@hidden>
>Organization: Lyndon State
>Keywords: 200007061904.e66J4vT23872 McIDAS-XCD RTGRIDS MRF AVN

Mark,

>Opening the request line up has killed our network.  I'm really not sure
>how the headers are constructed for the HDS data but I know that we don't
>need any of the grid projections for Alaska.  Is there documentation 
>which explains how the headers are constructed?

The following snippit from our pqact.conf file might help you:

<snip>

# NOAAport ETA grids
# Grid #211 80km CONUS:    ^[YZ].Q.*/mETA
# Grid #212 40km CONUS:    ^[YZ].R.*/mETA
# Grid #215 20km CONUS:    ^[YZ].U.*/mETA
# Grid #214 47.5km Alaska: ^[YZ].T.*/mETA
# Select any/all grids desired from [QRUT]
#
# RUC/MAPS model output
# Grid #211 CONUS   80km: ^[YZ].Q.*/mRUC
# Currently, only grid #211
#
# NGM model output
# Grid #211 CONUS   80km: ^[YZ].Q.*/mNGM
# Grid #207 Alaska  95km: ^[YZ].N.*/mNGM
# Grid #202 CONUS  190km: ^[YZ].I.*/mNGM
# Grid #213 CONUS 47.5km: ^[YZ].H.*/mNGM
# Select any/all grids desired from [QNIH]

HRS     ^[YZ].(.)... KWB. ([0-3][0-9])([0-2][0-9]).*/m(ETA|NGM|RUC)
        FILE
        data/raw/hrs/model/\1/(\2:yyyy)(\2:mm)\2\3_\4.wmo

# NOAAport MRF grids
# Grid #201 N. Hemisphere 381km: ^Y.A... KWBH
# Grid #202 CONUS         190km: ^Y.I... KWBH
# Grid #203 Alaska        190km: ^Y.J... KWBH
# Grid #204 Hawaii        160km: ^Y.K... KWBH
# Grid #205 Puerto Rico   190km: ^Y.L... KWBH
# Select any/all grids desired from [AIJKL]

HRS     ^[YZ].(.)... KWBH ([0-3][0-9])([0-2][0-9])
        FILE
        data/raw/hrs/model/\1/(\2:yyyy)(\2:mm)\2\3_MRF.wmo

# AVN model output
# Grid #201 N. Hemisphere 381km: ^Y.A... KWBC.*(/mAVN|/mSSIAVN)
# Grid #202 CONUS         190km: ^Y.I... KWBC.*(/mAVN|/mSSIAVN)
# Grid #203 Alaska        190km: ^Y.J... KWBC.*(/mAVN|/mSSIAVN)
# Grid #211 CONUS          80km: ^Y.Q... KWBC.*(/mAVN|/mSSIAVN)
# Grid #213 CONUS          95km: ^Y.H... KWBC.*(/mAVN|/mSSIAVN)
# Select any/all grids desired from [QAIJH]

HRS     ^[YZ].([QAIJH])... KWB. ([0-3][0-9])([0-2][0-9]).*(/mAVN|/mSSIAVN)
        FILE
        data/raw/hrs/model/\1/(\2:yyyy)(\2:mm)\2\3_AVN.wmo

# Global AVN (Spectral) Thinned grids
# Grid octets I-P will be stitched togethir as a single global grid
#

HRS     ^H.[I-P]... KWB. ([0-3][0-9])([0-2][0-9]).*
        FILE
        data/raw/hrs/model/thin/(\1:yyyy)(\1:mm)\1\2_AVN.wmo
#
# Global UKMet thinned grids
HRS     ^H.[I-P]... EGRR ([0-3][0-9])([0-2][0-9]).*
        FILE
        data/raw/hrs/model/ukmet_wafs/(\1:yyyy)(\1:mm)\1\2_UKM.wmo

#  MRF grids - Extended range grids E and F
#
HRS     ^H.[EF][A-Z][0-9][0-9] KWB. ([0-3][0-9])([0-2][0-9])..
        FILE
        data/raw/hrs/model/extended/(\1:yyyy)(\1:mm)\1\2_MRF.wmo

#  Spectral grids - grids A,B,C,D Global grid  Forecasts (wind & waves, temperat
ure)
##
HRS     ^H[A-Z][ABCD][A-Z][0-9][0-9] KWB. ([0-3][0-9])([0-2][0-9])..
        FILE
        data/raw/hrs/model/spectral/(\1:yyyy)(\1:mm)\1\2_WAVE.wmo

# Bitmap ocean
#
HRS     ^H[HKLTUV][T-W][ACEIK]93 KWB. ([0-3][0-9])([0-2][0-9])
        FILE
        data/raw/hrs/model/ocean/(\1:yyyy)(\1:mm)\1\2_OCEAN.wmo

# ECMWF GRIB products, decode into yymmdd_ecmf#.gem (e1=global,e2=+/-35lat)
#
HRS     ^H[HPT][A-L][A-Z][0-9][0-9] ECMF ([0-3][0-9])([0-2][0-9])
        FILE
        data/raw/hrs/model/ecmwf/(\1:yyyy)(\1:mm)\1\2_ECMWF1.wmo

HRS     ^H[UV][A-L][A-Z][0-9][0-9] ECMF ([0-3][0-9])([0-2][0-9])
        FILE
        data/raw/hrs/model/ecmwf/(\1:yyyy)(\1:mm)\1\2_ECMWF2.wmo

<snip>

>Here is the old request
>line before the header changes were made this summer:
>
>#request HDS
>#        "(^[A-OQ-X])|(^[YZ].[^AHIJRU])"
>#        navier.meteo.psu.edu

You might want to try:

request HDS
        "(^[A-OQ-X])|(^[YZ].[^AHIJLRU])"
        navier.meteo.psu.edu

(the only addition is the 'L' after 'AHIJ')


I setup the University of Puerto Rico with:

request HRS "^([A-X].*|[YZ].[AIL].*)" pluto.met.fsu.edu

(HRS and HDS are the same) and they get all of the MRFs:

DATALOC ADD RTGRIDS breeze.uprm.edu

GRDLIST RTGRIDS/ALL.ALL FORM=FILE

DATASET NAME: RTGRIDS/ALL
 Dataset Position  Creation Date Max Grids         Directory Title
 ----------------  ------------- --------- -------------------------------
        2             2000242       5000   Misc. Grids for 29 AUG 2000
        3             2000243       5000   Misc. Grids for 30 AUG 2000
       52             2000242       5000   ALL  00Z NGM 0  HR<=VT<=24 HR
       53             2000243       5000   ALL  00Z NGM 0  HR<=VT<=24 HR
       62             2000242       5000   ALL  00Z NGM 24 HR< VT<=48 HR
       63             2000243       5000   ALL  00Z NGM 24 HR< VT<=48 HR
       72             2000242       5000   ALL  12Z NGM 0  HR<=VT<=24 HR
       82             2000242       5000   ALL  12Z NGM 24 HR< VT<=48 HR
      102             2000242       5000   ALL  00Z MRF 0  HR<=VT<=24 HR
      103             2000243       5000   ALL  00Z MRF 0  HR<=VT<=24 HR
      112             2000242       5000   ALL  00Z MRF 24 HR< VT<=48 HR
      113             2000243       5000   ALL  00Z MRF 24 HR< VT<=48 HR
      122             2000242       5000   ALL  00Z MRF 48 HR< VT<=72 HR
      123             2000243       5000   ALL  00Z MRF 48 HR< VT<=72 HR
      132             2000242       5000   ALL  00Z MRF 72 HR< VT<=96 HR
      133             2000243       5000   ALL  00Z MRF 72 HR< VT<=96 HR
      142             2000242       5000   ALL  00Z MRF > 96  HR
      143             2000243       5000   ALL  00Z MRF > 96  HR
      302             2000242         24   MDR data for 29 AUG 2000
      303             2000243         24   MDR data for 30 AUG 2000
GRDLIST - done

>On a related note, prior to going to png compression this is the request
>line we were using for imagery:
>
>#request MCIDAS
>#        "^(GUNRV2.*|LWTOA3.*)"
>#        sunset.meteor.wisc.edu

This requested all of the delta-encoded imagery in the
Unidata-Wisconsin datastream.  The GUNRV2 request has not had any
effect since July of 1999, since that is when the GRID products were
removed from the UW stream.

By the way the volume of the delta-encoded imagey was considerably more
than the volume for the same imagery that has been PNG compressed.

>but now we are using:
>
>request MCIDAS
>        "^pnga2area Q[01]"
>        128.118.28.2

This requests all UW stream imagery that has been PNG compressed.

>Perhaps this could be trimmed down a bit too?  

You could change the request to:

request MCIDAS
        "^pnga2area Q1"
        128.118.28.2

This would eliminate the CIMSS imagery that was added to the broadcast
at the end of June.  I have to tell you that the bandwidth that these
images take up is miniscule in comparison to the other imagery and the
gridded HRS data.

>Any suggestions would be appreciated.

Give the HDS request modification a try and see if that gets you where
you want to be.

>Thanks.
>Mark Tucker
>Information Technology
>Lyndon State College
>address@hidden
>http://apollo.lsc.vsc.edu

Tom