[gradsusr] [EXTERNAL] Creating Script for Total Precip Rain/Snow

[Adams, Jennifer M. (GSFC-610.2)[ADNET SYSTEMS INC]]

Hi, Tyler –
Precip variables are missing at the 0th hour of a forecast – they don’t get real values until the second time step. They are accumulations over a time interval (1hr, 3hr, 6hr, 12hr, since the beginning of the forecast, etc.)
--Jennifer
--
Jennifer Miletta Adams
ADNET Systems, Inc.
NASA/GSFC, Code 610.2
Building 32, Room S159
(301) 614-6070


From: gradsusr <gradsusr-bounces at gradsusr.org> on behalf of Tyler Youschak <tyleryouschak at gmail.com>
Reply-To: GrADS Users Forum <gradsusr at gradsusr.org>
Date: Wednesday, November 6, 2019 at 6:53 PM
To: "gradsusr at gradsusr.org" <gradsusr at gradsusr.org>
Subject: [EXTERNAL] [gradsusr] Creating Script for Total Precip Rain/Snow

Hello all,

I'm trying to create a script to total, for instance, the total rain or snowfall (10:1) throughout a model run of the HRRR. I'm getting my hrrr files from nomads' ftp.

Within my grads file, I'm doing this:
'define snowacc = sum((APCPsfc*CSNOWsfc),t=1,t='fhour+1')/2.54'
'd snowacc'

However, when I do this, it is only showing the amount of snow that fell during one hour, and not from the fhour of "0" (or 1).

I'm having the same issue with rain precipitation as well.

If anyone is able to shed some light on this, it would be appreciated.

Thanks,
Tyler
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