GEMPAK Manual |
Programs | Parameters
STRMID
STRMID specifies the storm identifier used by programs GPTPC,
and GPTCWW:
Storm id/adv num/device/num fcst days/text/track/sz1;sz2/
lt1;lt2/lw1;lw2/clr1;clr2/disclaimer
The storm id is the six or eight character storm identifier given
for each particular storm, for example, AL0300 or EP072001. The
inclusion of the 2-digit century is optional.
The adv num is the number of the advisory that the user
wishes to see displayed. Both the storm id and the adv num
must be specified in order to view a particular storm. If either
or both of these fields are blank, the program will get the
storm(s) to be displayed by comparing the contents of the storm
history file to the files in the storm advisory directory. Each
storm id and advisory number in the history file is checked against
the storms in the directory. If a storm advisory is found in the
directory which has a higher number than the advisory number given
in the history file for that storm, the new advisory is displayed
and the history file is updated. If more than one new storm
advisory is in the directory for a specific storm, only the latest
advisory will be displayed. If new advisories for multiple storms
are in the directory, the latest new advisory for each storm will
be displayed. (If a storm id and advisory number are explicitly
specified using the STRMID parameter, the history file is neither
referenced or updated.) The history file must be a local file
named 'history.YYYY' for program GPTPC, and 'history_tc.YYYY' for
program GPTCWW, where YYYY is the 4-digit year. It looks like
this:
n
stormid1_adv1
stormid2_adv2
.
.
.
stormidn_advn
where n is the number of storm identifiers in the file (in I4
format), and where stormid# is the 8-character storm identifier
(e.g., al892001) and adv# is the 3 or 4 character storm advisory number
(e.g., 009) for the most recently displayed advisory for stormid#.
Advisory numbers must be in the format NNN or NNNP, where NNN specifies
the regular numeric (up to 3 digits) advisory number. Intermediate
advisories are specified with the format NNNP, where P is either the
character 'a' or 'b'. Program GPTCWW will read an intermediate public
advisory to obtain updated storm information when necessary. GPTPC only
uses information in the forecast advisory, so it ignores the intermediate
advisory extension (P), and uses only the numeric part of NNNP.
The device is the device driver to which the graphics will be sent.
The current choices are limited to XW, GF, PSC and, for GPTPC
only, TEST. If TEST is chosen, the program will display
the graphics in an XW window only, but the program becomes more
interactive than if XW were specified. With TEST, the user has the
option of which graphics to see, and is prompted to move from one
graphic to the next. XW will create four graphics in successive
windows for GPTPC with no user intervention. If no device is
specified, the default is GF. For GPTCWW, a single graphic is
created with no user intervention. Breakpoint information, if
required, is gotten from a previously generated local VG file.
The num fcst days is the number of forecast days of data to
display. (This field is not used by program GPTPC.) Permissible
values are 3 and 5. The default is 5.
The text field is not used.
The track is a flag to plot the cyclone's forecasted track. If
track is N, the track is not plotted. (This field is only used
by program GPTCWW.) The default is Y (yes).
The sz1;sz2 are the marker size multipliers for the cyclone's
forecast postion markers. Both (sz1;sz2), only first (sz1),
only second (;sz2) or neither can be specified. (This field is
only used by program GPTCWW.) Default values are 2;1.5
The lt1;lt2 are the cyclone's forecast track line types.
Both (lt1;lt2), only first (lt1), only second (;lt2) or neither
can be specified. (This field is only used by program GPTCWW.)
Default values are 1;3
The lw1;lw2 are the cyclone's forecast track line widths.
Both (lw1;lw2), only first (lw1), only second (;lw2) or neither
can be specified. (This field is only used by program GPTCWW.)
Default values are 4;4
The clr1;clr2 are the cyclone's forecast track line colors.
Both (clr1;clr2), only first (clr1), only second (;clr2) or neither
can be specified. (This field is only used by program GPTCWW.)
Default values are 32;32
The disclaimer is a flag to plot the disclaimer text. If
disclaimer is N, the text is not plotted. (This field is only used
by program GPTCWW.) The default is Y (yes).