comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Home » Public Forums » archive » Regridding NCEP Data
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend  		Switch to threaded view of this topic Create a new topic Submit Reply
Regridding NCEP Data [message #90783] Wed, 15 April 2015 11:44
Chase Calkins is currently offline  Chase Calkins
Messages: 4
Registered: February 2014
Junior Member
Hello,

I'm trying to regrid NCEP text file data from a 2.5x2.5 to a 2x2.5 so that

x = 144
y = 91 (originally 73)

I had been trying to use David Fanning's 'Gridding Map Data'
http://www.idlcoyote.com/code_tips/usegriddata.html
but it is for a Polar Stereographic and I was needing to use the Mercator

I thought changing
x0 = -12756200.0D (length in meters for the radius of earth in equatorial)
x1 = 12756200.0D
y0 = -12713600.0D (length in meters for the radius of earth in polar)
y1 = 12713600.0D
xdim = 144
ydim = 91
would work but it's not quite right. Is there a set of variables that is know for those values or is there a better way to regrid using IDL.

Report message to a moderator

  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic: Default values for keywords
Next Topic: Floating underflow in a plot

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Wed Oct 08 13:32:23 PDT 2025

Total time taken to generate the page: 0.00429 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.7.
Copyright ©2001-2013 FUDforum Bulletin Board Software