Re: [ferret_users] WRF output negative values

To: "Ansley C. Manke" <ansley.b.manke@xxxxxxxx>

Subject: Re: [ferret_users] WRF output negative values

From: afwande juliet <afwandej965@xxxxxxxxx>

Date: Wed, 10 Feb 2016 23:58:48 +0300

Cc: ferret_users <ferret_users@xxxxxxxx>

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Thanks all

the negative values disapeared

but there is alot of noise in the spatial distribution of rainfall;

look how the plot becomes very nasty

how can i reduce this

This how I do it
yes?let rainT=rainc+rainnc
yes? fill/k=273/hlim=22:54/vlim=-12:25/levels=(0,120,15)(inf) rainT, xlong,xlat
yes? go land 1 "" 1
yes? frame/file=test.gif

On Wed, Feb 10, 2016 at 9:10 PM, Ansley C. Manke <ansley.b.manke@xxxxxxxx> wrote:

hi,
You can use the /LEVELS qualifier to customize the contour levels on any Ferret plot.
http://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/customizing-plots/CONTOURING#_VPINDEXENTRY_852

Here are a couple of syntax examples

yes? ! use variance-based levels, with the smallest being 0yes? fill/levels=v,0min wrf

yes? ! use levels from 0 to 105 with a delta of 15,yes? ! and any larger data represented by a single coloryes? fill/levels=(0,105,15)(inf) wrf
-Ansley

On 2/10/2016 8:47 AM, afwande juliet wrote:

Hi all

I am plotting rainfall from wrfoutput but the scale has negative values.

How can i remove the negative values using ferret so that Only values from 0> are plotted

attached is plot with negative scales

Attachment: test.gif
Description: GIF image