Re: [ferret_users] latitude -time plots leaves white space

["Ansley C. Manke" <ansley.b.manke@xxxxxxxx>]

Hi
Ferret draws the time axis with complete months, showing that the first grid point is not exactly at the beginning of the month and the last grid point is not at the end of the last month.  We don't have a lot of flexibility with this.  The FILL command is interpolating between grid cells, and does not extrapolate to the edges of the grid cells, so for example, if the data is monthly, it'll fill only to the middle of the months.

Here's an example monthly dataset, with one idea you could look at:

yes? use six_months
yes? show grid tvar
    GRID (G002)
 name       axis              # pts   start                end                 subset
 FNOCX     LONGITUDE          144mr   20E                  17.5E(377.5)        full
 FNOCY     LATITUDE            73 r   90S                  90N                 full
 normal    Z
 TEVEN     TIME                 6 r   16-JAN-2015 00:00    15-JUN-2015 00:00   full

This has gaps at the ends of half a month (upper)

yes? set v upper
yes? fill/i=100/y=-20:20  tvar

One thing you can do is underlay a SHADE plot  (upper right). This looks bad with this monthly data but might be ok if the white-space we want to fill in is smaller

yes? set v lower
yes? shade/i=100/y=-20:20/TITLE="SHADE plot underlay"  tvar
yes? fill/over/lev/nolab /i=100/y=-20:20  tvar

On 5/25/2017 7:27 AM, afwande juliet wrote:

Dear ferret users

I am plotting the hovemoller diagram but latitude-time plot leaves white space at the edges of the first and last longittue.

I have tried to use this thread https://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2014/msg00069.html to implement the changes still not succesful

Attached is my sample plot and script for help

thanks always

Attachment: example.png
Description: PNG image