[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
20000417: XCD grid decoding problems at UVa (final)
- Subject: 20000417: XCD grid decoding problems at UVa (final)
- Date: Mon, 17 Apr 2000 10:19:08 -0600
>From: Anthony James Wimmers <address@hidden>
>Organization: UVa
>Keywords: 200004091534.JAA08082 XCD DMGRID ETA MRF FTP backup RTMODELS.CFG
>NOGRIB.CFG GRIBDEC.CFG HRS.CFG RESOLV.SRV DECINFO
Tony,
>I'll get to work on your instructions once I know how to do this:
>
>> o install two new tables used by dmgrid.k: gbtbpds001.a74v1 and
>> gbtbpds001.a98v1. This gets around having to ever modify gbtbpds001.av1
>> for ECMWF model ID changes (yahoo!).
I already did this on your system. The only things that were possibly
left undone were:
o reducing the size of your HRS spool file; 128 MB is almost 100% for
sure overkill
o changing how ETA grids are stored _IF_ you want to have each model
run in a separate file
The previous email had the instructions for the former; the following
covers the latter:
I changed how ETA grids are stored here at Unidata as an experiment.
I am now storing each ETA model run (0, 6, 12, and 18 Z) in separate
files. The RTMODELS.CFG entries that I am currently using are:
# History: 20000403 - Changed ETA grid filing format (3 -> 1) in order to
# file grids out to 60 hours (March 29, 2000 NWS change)
# Moved start of NGM grids to 5501
# 20000415 - Moved NGM grids start to 5011; moved ETA grids start
# to 5501; changed ETA filing to reflect runs at
# 0, 6, 12, and 18 Z
SCRATCH=5001
NGM= 3 5011 120000 240000 480000
MRF= 1 5101 120000 240000 960000
MAPS= 0 5201 30000
MDR= 2 5301
# RCM= 2 5311
AVN= 3 5401 120000 240000 720000
ETA= 1 5501 60000 240000 480000
You will note that I:
o moved NGM grids to start at 5011
o moved ETA grids to start at 5501
o changed the interval between model runs for the ETA from 120000 to 60000
A listing of how my grids look after this change follows:
grdlist.k RTGRIDS/ALL.ALL FORM=FILE
DATASET NAME: RTGRIDS/ALL
Dataset Position Creation Date Max Grids Directory Title
---------------- ------------- --------- -------------------------------
7 2000107 5000 Misc. Grids for 16 APR 2000
8 2000108 5000 Misc. Grids for 17 APR 2000
17 2000107 5000 ALL 00Z NGM 0 HR<=VT<=24 HR
18 2000108 5000 ALL 00Z NGM 0 HR<=VT<=24 HR
27 2000107 5000 ALL 00Z NGM 24 HR< VT<=48 HR
28 2000108 5000 ALL 00Z NGM 24 HR< VT<=48 HR
37 2000107 5000 ALL 12Z NGM 0 HR<=VT<=24 HR
38 2000108 5000 ALL 12Z NGM 0 HR<=VT<=24 HR
47 2000107 5000 ALL 12Z NGM 24 HR< VT<=48 HR
48 2000108 5000 ALL 12Z NGM 24 HR< VT<=48 HR
107 2000107 5000 ALL 00Z MRF 0 HR<=VT<=24 HR
108 2000108 5000 ALL 00Z MRF 0 HR<=VT<=24 HR
117 2000107 5000 ALL 00Z MRF 24 HR< VT<=48 HR
118 2000108 5000 ALL 00Z MRF 24 HR< VT<=48 HR
127 2000107 5000 ALL 00Z MRF 48 HR< VT<=72 HR
128 2000108 5000 ALL 00Z MRF 48 HR< VT<=72 HR
137 2000107 5000 ALL 00Z MRF 72 HR< VT<=96 HR
138 2000108 5000 ALL 00Z MRF 72 HR< VT<=96 HR
147 2000107 5000 ALL 00Z MRF > 96 HR
148 2000108 5000 ALL 00Z MRF > 96 HR
207 2000107 5000 ALL 00Z MAPS
208 2000108 5000 ALL 00Z MAPS
217 2000107 5000 ALL 03Z MAPS
218 2000108 5000 ALL 03Z MAPS
227 2000107 5000 ALL 06Z MAPS
228 2000108 5000 ALL 06Z MAPS
237 2000107 5000 ALL 09Z MAPS
238 2000108 5000 ALL 09Z MAPS
247 2000107 5000 ALL 12Z MAPS
248 2000108 5000 ALL 12Z MAPS
257 2000107 5000 ALL 15Z MAPS
258 2000108 5000 ALL 15Z MAPS
267 2000107 5000 ALL 18Z MAPS
277 2000107 5000 ALL 21Z MAPS
307 2000107 24 MDR data for 16 APR 2000
308 2000108 24 MDR data for 17 APR 2000
317 2000107 5000 ALL RCM
407 2000107 5000 ALL 00Z AVN 0 HR<=VT<=24 HR
408 2000108 5000 ALL 00Z AVN 0 HR<=VT<=24 HR
417 2000107 5000 ALL 00Z AVN 24 HR< VT<=48 HR
418 2000108 5000 ALL 00Z AVN 24 HR< VT<=48 HR
427 2000107 5000 ALL 00Z AVN 48 HR< VT<=72 HR
428 2000108 5000 ALL 00Z AVN 48 HR< VT<=72 HR
437 2000107 5000 ALL 12Z AVN 0 HR<=VT<=24 HR
438 2000108 5000 ALL 12Z AVN 0 HR<=VT<=24 HR
447 2000107 5000 ALL 12Z AVN 24 HR< VT<=48 HR
448 2000108 5000 ALL 12Z AVN 24 HR< VT<=48 HR
457 2000107 5000 ALL 12Z AVN 48 HR< VT<=72 HR
507 2000107 5000 ALL 00Z ETA 0 HR<=VT<=24 HR
508 2000108 5000 ALL 00Z ETA 0 HR<=VT<=24 HR
517 2000107 5000 ALL 00Z ETA 24 HR< VT<=48 HR
518 2000108 5000 ALL 00Z ETA 24 HR< VT<=48 HR
527 2000107 5000 ALL 00Z ETA > 48 HR
528 2000108 5000 ALL 00Z ETA > 48 HR
537 2000107 5000 ALL 06Z ETA 0 HR<=VT<=24 HR
538 2000108 5000 ALL 06Z ETA 0 HR<=VT<=24 HR
547 2000107 5000 ALL 06Z ETA 24 HR< VT<=48 HR
548 2000108 5000 ALL 06Z ETA 24 HR< VT<=48 HR
567 2000107 5000 ALL 12Z ETA 0 HR<=VT<=24 HR
568 2000108 5000 ALL 12Z ETA 0 HR<=VT<=24 HR
577 2000107 5000 ALL 12Z ETA 24 HR< VT<=48 HR
578 2000108 5000 ALL 12Z ETA 24 HR< VT<=48 HR
587 2000107 5000 ALL 12Z ETA > 48 HR
588 2000108 5000 ALL 12Z ETA > 48 HR
597 2000107 5000 ALL 18Z ETA 0 HR<=VT<=24 HR
607 2000107 5000 ALL 18Z ETA 24 HR< VT<=48 HR
GRDLIST - done
You can see from this listing that storing the ETA grids in run time
specific files results in 120 GRID file names being used.
In order to access the data stored in this new way, I also had to modify
my RESOLV.SRV file (the one used by the remote ADDE server):
N1=RTGRIDS,N2=ALL,TYPE=GRID,RT=Y,K=GRID,R1=5001,R2=6000,C=All XCD Real-Time
Grids,
N1=RTGRIDS,N2=ETA,TYPE=GRID,RT=Y,K=GRID,R1=5501,R2=5620,C=Real-Time ETA Grids,
N1=RTGRIDS,N2=NGM,TYPE=GRID,RT=Y,K=GRID,R1=5011,R2=5050,C=Real-Time NGM Grids,
If you choose to _not_ follow the above example, you need do nothing.
Tom