Re: [ferret_users] Annual cycle for 30years.

To: ferret_users@xxxxxxxx

Subject: Re: [ferret_users] Annual cycle for 30years.

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

Date: Tue, 28 Jun 2016 09:49:30 -0700

Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=noaa-gov.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:x-original-sender:x-original-authentication-results :precedence:mailing-list:list-id:list-post:list-help:list-archive :list-unsubscribe; bh=rpOu49YJE5YJxnUOA+ZrJH/yhbyw7nlfjghnxKBqCUY=; b=O7q1koD3dbPGSxTjRvFR3+Brjqp87pN+UnmWxdKrQkUsHIcX9Pma61W5TS8KBr3lk3 zVf08jRlnycaPxg0UaW2PYXcohc9c0ZMsGpTKQ0KkAnCoIHKm0duIUPONwZkebHHRAo7 skmCk2h4U9AYGrao0xXF3yxZS+J0Mli3UBWZmoBgOIgOv+Y8/xyb6HGO0y8QdlwCopRM px0UyU6nnkmzxpOrCvW+zxI5FxDLR0qxCs+9M7tvy840M/J73Ki9qaK7gOoUC87X6UHQ zu6cjx6MJPHCCsa/xX3QP3SSnVKYgeKZvVaDMF4/zJPIwMnz5A0IK/NjAXDzKyj+0KB7 UpYw==

In-reply-to: <CANVsOoi8FOeE6VnyL4Pu1rn3oPUrZn2tuf3+nP7wGm2qzf7n_A@mail.gmail.com>

List-archive: <https://groups.google.com/a/noaa.gov/group/ferret_users/>

List-help: <https://support.google.com/a/noaa.gov/bin/topic.py?topic=25838>, <mailto:ferret_users+help@noaa.gov>

List-id: <ferret_users.noaa.gov>

List-post: <https://groups.google.com/a/noaa.gov/group/ferret_users/post>, <mailto:ferret_users@noaa.gov>

List-unsubscribe: <mailto:googlegroups-manage+809428289204+unsubscribe@googlegroups.com>, <https://groups.google.com/a/noaa.gov/group/ferret_users/subscribe>

Mailing-list: list ferret_users@xxxxxxxx; contact ferret_users+owners@xxxxxxxx

References: <CANVsOoi8FOeE6VnyL4Pu1rn3oPUrZn2tuf3+nP7wGm2qzf7n_A@mail.gmail.com>

Sender: owner-ferret_users@xxxxxxxx

User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1

Hi,

Computation of an annual cycle is done in Ferret with "modulo regridding" operations, and our terminology for this is "climatologies". Here is an FAQ about that,

http://ferret.pmel.noaa.gov/Ferret/faq/how-do-i-calculate-climatologies-and-climatological-anomalies

As a general suggestion, when writing a script, it's a good idea to plot things separately, and with default settings, before putting everything together for your final script. For instance, your script has these lines:

plot/vlimits=-2.5:2.5:0.5/nolabel/line=8 pr1[d=1]*30plot/level=(0,600,30)(inf)/vlimits=-2.5:2.5:0.5/over/nolabel/line=14 pr2[gt=pr1@asn]*30plot/level=(0,600,30)(inf)/vlimits=-2.5:2.5:0.5/over/nolabel/line=15 pr3[gt=pr1@asn]*30

but those commands are returning a blank plot. so, try the plot commands separately,

plot pr1[d=1]*30; pause
plot pr2[gt=pr1@asn]*30; pause
plot pr3[gt=pr1@asn]*30; pause

Now you may start to see what is happening with the definition of the variables and the plot commands. Once you have the definitions right, then put them together with overlaying and different colors, and work with labeling etc to get the final plot.

(By the way, the /LEVEL qualifier is for setting color levels on a color fill plot. It can be used on a 1-D "plot" command, but only when you are coloring the line according to some second quantity. See RIBBON plots, http://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/commands-reference/PLOT#_PLOT_RIBBON)

Ansley

On 6/28/2016 7:42 AM, afwande juliet wrote:

Dear Ferreters

I want to plot annual cycles like the ones below. These ones are examples are copied from some online sources. I am using this script attached but only getting empty space figure also attached. I have used this http://www.precisrcm.com/GRACE/KL_worksheets/worksheet_KL_2a.html to calculate annual cycel before plotting in ferret but gets empty space. Could someone show me how to go about this. The data am using is monthly data in kg/m2/s2