[GRASSLIST:2156] Re: Where's the data within a cell?

Rich Shepard rshepard at appl-ecosys.com
Wed Jul 25 20:23:18 EDT 2001

On Thu, 26 Jul 2001, Glynn Clements wrote:

> The UL[XY]MAP values in the .hdr file are of the centre of the top-left
> cell.


  This answers my question: the geographic location is in the center of the

  FWIW, I'm working with 7.5-minute (30 m) dems, not the 3-arc second ones.
But, I assume the geographic location is the same: cell center.

  In Idrisi (which I used many years ago), I believe the geographic
reference was the lower-left corner of each cell; I don't recall how EPPL-7
did it.

Thanks very much,


Dr. Richard B. Shepard, President

                       Applied Ecosystem Services, Inc. (TM)
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