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Re: How to plot the topography in Y-Z plate?



Dear Shankar

Thanks for your scripts!
I generated a levitus_mask,and it works well.
I also generated a mask file with my model data, it also
works but the resolution is somewhat too coarse.

There is one more question. 
Now, for example,I use 
   go fland_levitus z=1:5000 y=90s:90n
It gives me a topography. But, what's the longitude it uses as
the value of x? 
I read the script but can not understand it well, but I guess
it used some default lon. Since I want the lon. average 
topography, how to modify your script to do this?

Thanks a lot!

yours,
Kun

On Thu, 2 Mar
2000, D Shankar
wrote:

> Hi,
> The following journal file is what we use to overlay a land-sea mask for
> Levitus data.  It works for vertical sections too.
> Shankar.
> ------------------------------------------------------------------------
> ! NOTE: for a contour plot in the XY plane BELOW the surface, you must supply
> ! the first argument to this GO script.
> ! usage: GO fland_levitus k=N  (where N is the required level)
> ! or     GO fland_levitus z=Z  (where Z is the required depth)
> !        GO fland_levitus      (in other cases)
> \cancel mode verify
> ! fland_levitus.jnl - a land mask for the LEVITUS dataset (overlay or "basemap")
> ! 1/97
> 
> ! Description: Plot/overlay an an area-filled continental map using LEVITUS mask
> 
> ! usage:               arg1      arg2        arg3         arg4      arg5
> !  GO fland_levitus [z=lo:hi] [palette] [overlay_style] [x=lo:hi] [y=lo:hi]
> 
> ! arg1  - depth limits - specify as for any FERRET depth range
> !                        use either k=*:* or z=*:*
> ! arg2  - palette - may be any palette on your system.  Normally solid colors
> !	           like black, gray,red, etc. (see Fpalette '*') default=gray
> ! arg3  - overlay_style - "basemap", "transparent", or "overlay" (default)
> ! arg4  - longitude limits - specify as for any FERRET longitude range
> ! arg5  - latitude  limits - specify as for any FERRET latitude  range
>  
> ! examples:
> !	  GO fland_levitus 	          ! default - color gray, overlay
> !       GO fland_levitus k=1            ! MASK for surface
> !	  GO fland_levitus k=1 red        ! palette red.spk, overlay
> !	  GO fland_levitus z=0:1000 red basemap ! color red, basemap
> !	  GO fland_levitus z=1000 gray transparent ! color gray, transparent mask
> !       GO fland k=1 gray overlay x=30e:100w y=20s:20n
> 
> ! Note : The transparent option creates a see-through overlay land mask
> 
> ! check the overlay/basemap/transparent option
> query/ignore $3%overlay|overlay|basemap|transparent<3rd argument of GO fland_levitus must be "overlay", "basemap", or "transparent"%
> 
> ! save data set
> set data/save
> 
> ! save region
> define region/default levitus
> 
> ! set data for MASK
> use levitus_mask.nc
> 
> set region/l=1
> 
> shade/nolab/nokey/levels="(-0.5,0.5,1.0)"$1" |*>/*"/pal=$2"gray"$3"/overlay|basemap> |*>/overlay"$4" |*>/*"$5" |*>/*" $3"MASK|transparent>if mod(i+j,2) eq 0 then MASK|*>MASK"
> 
> ! cancel MASK data set
> cancel data levitus_mask.nc
> 
> ! restore region
> set region levitus
> 
> ! restore original data set
> set data/restore
> 
> set mode/last verify
> 
> ! END of fland_levitus.jnl
> ----------------------------------------------------------------------------
> 
> On Wed, 1 Mar 2000, Yang Kun wrote:
> 
> > Hi, Dear ferret_users,
> > 
> > I am a new ferret_beginner.
> > I contoured the temperature in Y-Z plate and want to
> > fill the land in depth, how can I do it? I use a
> > variable in my netcdf file as a mask which use missing
> > value(-999.0) as land and 1 as sea water.
> > Thank you for the help.
> > 
> > yours,
> > Kun
> > 
> > =====================================================
> > Kun Yang,   Researching Assistant
> > Dept. of Oceanography, Texas A&M Uni. College Station
> > Mailing Addr:     806F, Oran Circle, Bryan, TX, 77801
> > Tel:  (409)-268-0963 (h), (409)-845-3238 (o)
> > Email addr:    yangk@ocean.tamu.edu; yangk@netease.com
> > =====================================================
> > 
> 
> D. Shankar                           Ph. (O): [91](832) 22 6253 * 4400/4224
> Physical Oceanography Division,                         22 1322 * 4400/4224
> National Institute of Oceanography,      (R): [91](832) 23 8208      
> Dona Paula,                          Fax    : [91](832) 22 3340/1360/9102
> Goa 403 004,                         email  : shankar@csnio.ren.nic.in
> India.                                        shankar@darya.nio.org
> 
> 

=====================================================
Kun Yang,   Researching Assistant
Dept. of Oceanography, Texas A&M Uni. College Station
Mailing Addr:     806F, Oran Circle, Bryan, TX, 77801
Tel:  (409)-268-0963 (h), (409)-845-3238 (o)
Email addr:    yangk@ocean.tamu.edu; yangk@netease.com
=====================================================



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