[postgis-users] gridded data

[Stephen Crawford]

Hi,

How do I best use gridded data in postgres-postgis (I've only used 
vector data before)?

I want to use daily weather variables that are in a grid for USA.  I 
would want store the daily variables ( a new grid each day) so I can 
have a database that will allow the client to send a point lat/lon and 
then return a calculation based on a few days worth of two or three 
variables.

Do I store each day (or variable) as a new table?  How does a grid get 
stored in postgres?  Is this a job for PostGIS Raster (though I do not 
want to produce images, just queries at a point)?

Any thoughts on this will be greatly appreciated.

Thanks,
Steve


-- 
Stephen Crawford
Center for Environmental Informatics
The Pennsylvania State University
src176 at psu.edu