[idvusers] Precipitation accumulation

• To: "idvusers@xxxxxxxxxxxxxxxx" <idvusers@xxxxxxxxxxxxxxxx>
• Subject: [idvusers] Precipitation accumulation
• From: Robert Dewey <robert.d.dewey@xxxxxxxxx>
• Date: Wed, 14 Nov 2012 10:18:29 -0500

I'm having trouble accumulating precipitation properly (using the NAM from
the Motherlode THREDDS). I'm using the Formula > Grids > Time Steps
functions, and getting weird results. I assume this is because the NAM
accumulates 3-hourly precipitation, but doesn't "reset" until every 12th
forecast hour... so the accumulation function is adding up everything in
between and giving values way too high. I tried selecting each individual
12th forecast hour, but that doesn't seem to work for some reason.

Any ideas?


Best Regards,

Robert Dewey

• Follow-Ups:
  • Re: [idvusers] Precipitation accumulation
    • From: John Caron