Steps 2-5 are done once, while steps 6 and 7 are done each
time you wish to plot retrieval data. Steps for plotting
GOES-9 retrieval data:
1) Contact Kevin Schrab to get executables so plotting
will function.
2) Set up ingest of GOES-9 retrieval file. Enter the
following on the McIDAS command line:
SKE 96300 16:5?:00 999999 01:00 TOL=00:05 "GETRETS
where ? in 16:5?:00 is a number 0-5, this is so not everyone
ingests the data at the same time.
NOTE: GOES-9 retrievals are ingested hourly. For example, the
15Z retrieval is ingested at 15:5?.
3) Set up conversion of retrieval file into a file that a skewt
can be plotted from by entering:
SKE 96300 16:58:00 999999 01:00 TOL=00:05 "RETSRAOB
4) On McIDAS command line enter:
SCHE DCIRAB
this will allow the creation of the SKEWT type files by
the RETSRAOB program
5) Enter SKL on the McIDAS command line to see that these entries
have been added to the schedule. They should look something like:
T# ID XS NEXT EXECUTN # REM INTERVAL TOL NAME PROJ COMMAND TEXT
-- -- -- ------------ ----- -------- ----- ---- ---- ------------
1 29 96300 165100 MANY 10000 500 MTR 5000 GETRETS
1 30 96300 165800 MANY 10000 500 MTR 5000 RETSRAOB
the ID may be different, the main thing to check is #REM and
INTERVAL and the COMMAND TEXT.
6a) To plot a GOES-9 derived parameter on a single satellite image enter:
SOUNDONE param time
where, param is parameter to plot, param can be (click to get
sample plot):
LI lifted index
WV total precipitable water
WV1 low level (1000-900mb) precipitable water
WV2 mid level (900-700mb) precipitable water
WV3 high level (700-300mb) precipitable water
IDN identification number of sounding (used in skewts)
ALL plot LI,WV,WV1,WV2,WV3 in a station plot
and, time is hour (hh format) of sounding to plot (defaults to match
time of image, so can usually be omitted)
6b) To plot a GOES-9 derived parameter on all images in a loop enter:
SOUNDALL param time
where, param is parameter to plot, param can be (click to get
sample plot):
LI lifted index
WV total precipitable water
WV1 low level (1000-900mb) precipitable water
WV2 mid level (900-700mb) precipitable water
WV3 high level (700-300mb) precipitable water
IDN identification number of sounding (used in skewts)
ALL plot LI,WV,WV1,WV2,WV3 in a station plot
and, time is hour (hh format) of sounding to plot (defaults to match
time of image, so can usually be omitted)
CAUTION: Since soundings come from 2 different sounder scan
sectors the idn may not be unique. This problem is
being worked on.
7a) To plot a skewt of GOES-9 sounding over the Pacific (west of 125W) enter:
SKEWTG9 idn time (click to get sample plot)
where, idn is identification number of sounding (use SOUNDONE
to locate the idn you wish to plot)
time is hour (hh format) of sounding to plot
7b) To plot a skewt of GOES-9 sounding over WR (east of 125W) enter:
SKEWTG99 idn time (click to get sample plot)
where, idn is identification number of sounding (use SOUNDONE
to locate the idn you wish to plot)
time is hour (hh format) of sounding to plot
NOTE: Use a blank frame to plot skewt. So, before doing
SKEWTG9 enter: SF 250;EG 250;EU REST BLACK 250
NOTE: You may wish to make a loop of skewts by entering
numerous SKEWTG9 commands. You could use frames 1-16
for this purpose.
NOTE: The idn for a particular location changes for every time
since they are numbered by of many sounding are produced
(which is dependent on cloud cover).
8) If SOUNDONE does not plot anything click here.
If SKEWTG9 does not plot anything click here.