Create a raster of latitude

[DanRosauer]

Hi

Can anyone suggest a simple way to create a grid where the cell value is simply its latitude?

Ultimately I want to apply a function of latitude to generate a value for each cell.

Any solutions in the arc toolbox or python would be cool.

thanks
Dan

[Luke_Pinner]

Dan, what version of ArcGIS are you using?

If <=9.3.1 you can simply use the grid variable $$YMAP in any Map Alegbra expression (ArcToolbox or Raster Calculator) - assuming you are working in a geographic coordinate system and you have set your analysis environment up (cell size, extent, etc).

In 10.0 this has been removed (or hidden). You can still use it with a little bit of python scripting, see http://forums.arcgis.com/threads/18608-internal-grids-rowmap-colmap-xmap-ymap#post106446