Re: can the brace generate domain you specified in non lat/lon projection grid?

From: Dave Allured - NOAA Affiliate <dave.allured_at_nyahnyahspammersnyahnyah>
Date: Sun Jan 12 2014 - 21:58:23 MST

What do your lat and lon coordinate variables look like? printVarSummary
(lat) and printVarSummary (lon).

Yes you can use "coordinate subscripting" (curly braces) if the lat and lon
coordinate variables are 1-dimensional, but not if they are 2-dimensional.

E.g. coordinate variable lat(lat) can be subset with coordinate
subscripting {latstart:latend}. However, lat(x,y) can not be subset with
coordinate subscripting, except var(:,{xstart:xend}, {ystart,yend}) is
okay. But that may not be what you want, because x and y are often NOT
latitude and longitude, but something else like index numbers, or meters on
a UTM grid.

Published data sets on Gaussian grids are commonly made with 1-D
coordinates. There are alternate subscripting methods for 2-D coordinate
variables.

--Dave
(Please include user list in replies.)

On Sun, Jan 12, 2014 at 9:04 PM, dyjbean@gmail.com <dyjbean@gmail.com>wrote:

> hi,
> if data projection is not usually regular lon/lat but
> gauss projection,and its dimensionality is
> time*lat*lon, i want to specify some domain, can the notation in
> var(:,{latstart:latend},{lonstart:lonend})
> show the correct area specified ?
>
> thanks
>
> ------------------------------
> dyjbean@gmail.com
>
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Received on Sun Jan 12 21:58:34 2014

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