Tom Roche Wed, 21 Nov 2012 23:30:42 -0500
>> I'm trying to select the appropriate method(s) for regridding gas
>> concentrations from a global 3D grid (coordinates=longitude,
>> latitude, sigma) to a regional 3D grid (coordinates=col, row, sigma)
>> on a Lambert Conformal Conic (LCC) projection over North America with
>> 12-km horizontal resolution.
>> I suspect my difficulty is at least in part due to my uncertainty
>> regarding definitions of some terms as used in the NCL docs. (It may
>> also be due to my being totally confused :-) My global input grid is
>> pretty clearly spherical and curvilinear (no?)
Dennis Shea Fri, 23 Nov 2012 08:47:30 -0700
(rearranged, from another thread)
> [2] The global is (likely) rectilinear [in NCL parlance.]
Really? Lon-lat is rectilinear?
>> I'm [even] less certain about the terms to use regarding my regional
>> output grid: Does NCL consider a 3D LCC grid "Cartesian"? [...] If
>> not Cartesian, I'm assuming a 3D LCC grid is at least considered
>> rectilinear. If a 3D LCC grid is *not* considered rectilinear, I am
>> very confused, and would appreciate an explanation.
> [1] The LCC is curvilinear in NCL parlance.
OK, I am very confused--this is the opposite of what I assumed.
Is LCC at least "Cartesian"? That matters to me, because I'd like to do
the 3D regridding with ESMF_regrid, but
Subject: [3587543] 3D regridding from spherical coordinates to Cartesian coordinates?
From: Robert Oehmke <robert.oehmke@noaa.gov>
Date: Fri, 16 Nov 2012 10:57:49 -0700
Cc: esmf_support <esmf_support@list.woc.noaa.gov>
>>> [ESMF] currently only [supports] regridding between source and
>>> destination grids with the same coordinate space (e.g. from
>>> Cartesian to Cartesian [or spherical to spherical]).
Thanks for your assistance, Tom Roche <Tom_Roche@pobox.com>
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Received on Sat Nov 24 10:15:05 2012
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