PRECIS support forum

It is currently Sat Nov 18, 2017 1:46 pm

All times are UTC




Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Wed Apr 26, 2017 8:27 pm 
Offline

Joined: Mon Mar 28, 2016 5:29 pm
Posts: 17
Hello all,

I finished my experiment with PRECIS, using MOSES2, and I'd like to plot the topography and Land surface type from the regional model.
Is there a way to do this?

I appreciate any help

Claudia Costa


Top
 Profile  
 
PostPosted: Tue May 09, 2017 2:32 pm 
Offline

Joined: Mon Mar 28, 2016 5:29 pm
Posts: 17
Would anyone know how to answer my question?

Claudia


Top
 Profile  
 
PostPosted: Mon Jul 03, 2017 10:11 am 
Offline

Joined: Thu Feb 06, 2014 12:29 pm
Posts: 118
Hi Claudia,

Many apologies for the delay

The topography is straightforward

log in as user precis.

You experiment will have a five character identified called a runid. Let's say yours is claad (it will be different for you -- replace your runid with the one I write below).

To plot topography

Code:
.  $HOME/setvars
cd $ANCILDIR/claad

convpp qrparm.orog  qrparm.orog.pp

ppfile –r 1 –o orog.pp   qrparm.orog.pp

pprr –r 8 –o orog.rr8.pp orog.pp


The rim-removed topography / orography on the regional grid is in orog.rr8.pp

You can plot in xconv, or convert it to netcdf for plotting in a variety of formats. Xconv itself will do this conversion (open as pp, save as netcdf) or you can use cf-python.


Plotting the vegetation is not really straightforward. First of all it's worth reading the Moses2.2 scientific document.

http://www.precisrcm.com/umdoc/UM_docs/papers/p_25_t2.ps

and also Appendix I of the technical manual

http://www.metoffice.gov.uk/binaries/content/assets/mohippo/pdf/4/m/tech_man_v2.pdf

and more about the IGBP land cover here
https://edcftp.cr.usgs.gov/project/glcc/globdoc2_0.html

Speaking in a somewhat vague manner, the primary and secondary vegetation and soil types in the land surface scheme are represented as combinations of several base types. So it's not usually possible to get exact vegetation type per grid box. I like to think of it like mixing paint at a hardware store. Once you mix the paint, you get a new shade which is a mixture of the original paint. It's not possible to go back from the mixture to the original.

David


Top
 Profile  
 
PostPosted: Mon Jul 03, 2017 12:27 pm 
Offline

Joined: Mon Mar 28, 2016 5:29 pm
Posts: 17
Thank you very much, David.


Claudia


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group