Opened 13 years ago

Closed 13 years ago

#7 closed help (fixed)

UM output in meaning period

Reported by: i.renfrew@… Owned by: cwang
Component: Data Keywords: UM output
Cc: Platform:
UM Version:

Description (last modified by admin)

Dear Chang,

I have a funny problem in my current "test" runs, e.g. xcbmh. I've asked around at UEA, but without finding a solution.

You can see that I have set up a time domain T6mean6, which is supposed to output data every 6 hours, with a meaning period of 6 hours. In the UMUI I set the stash time domain settings to:

Meaning period: time units hours sampling period 6

samping frequency: timesteps frequency 1 sampling offset 0

output times: regular intervals time hours starting 0 (I also tried this with 6 in xcbmg) ending -1 frequency 6

The output times from this were 0.625, 0.875, 1.125 and 1.375, equivalent to 15, 21, 27 and 33 h into a 24-h run!

There appears to have been a 0.5 day offset added. The times for my other time domains are as expected. However I get the same problem for T6Accum6, which is an accumulation every timestep for 6 hours, output every 6 hours.

Change History (3)

comment:1 Changed 13 years ago by admin

  • Component changed from UM Model to Data
  • Description modified (diff)
  • Keywords UM output added
  • Owner changed from lois to cwang
  • Reporter changed from admin to i.renfrew@…
  • Summary changed from test2 to UM output in meaning period

comment:2 Changed 13 years ago by admin

Hi ian,

Thank you very much for your email.

In my experience, the UM output time should give something as follow:

(1)If you set meaning period: 6H

Output time freq. 6H

Then your output time from the UM: 7H,13H… Then you output time is in xconv/jview_v1 is 4H,10H…

(2)If you set meaning period: 1H

Output time freq. 6H

Then your output time from the UM: 7H,13H… Then you output time is in xconv/jview_v1 is 6:30H,12:30H…

If you are still not quite sure, then you can tell where your data is on HPCx and then I can have a look at you data. Please do change your permission for me to read.

Best regards

Chang

comment:3 Changed 13 years ago by cwang

  • Resolution set to fixed
  • Status changed from new to closed
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