[GRASSLIST:405] RE: how to refer to cell's ,longitude latitude coordinates?

[Jonathan Greenberg]

Vishal: any reason you aren't using r.sun?  

 

--j

 

--

Jonathan A. Greenberg, PhD
NRC Research Associate
NASA Ames Research Center
MS 242-4
Moffett Field, CA 94035-1000
Phone: 415-794-5043
AIM: jgrn3007
MSN: jgrn3007 at hotmail.com 

  _____  

From: owner-GRASSLIST at baylor.edu [mailto:owner-GRASSLIST at baylor.edu] On
Behalf Of Vishal Mehta
Sent: Monday, March 27, 2006 12:59 AM
To: GRASS Users list
Subject: [GRASSLIST:403] how to refer to cell's ,longitude latitude
coordinates?

 

Hi all,

I have a raster map, lat/long, 0.5 degrees resolution. I want to develop
solar radiation and related maps maps using r.mapcalc. This requires
refering to each cell's latitude and longitude, i.e. the equations will
include the cell's latitude and longitude. How do i do this in GRASS? Is
there like an intenral variable that indexes each cell's coordinates?

thanks,
vishal

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