[RegCNET] RegCNET Digest, Vol 733, Issue 1

[Kaijage Bonephace]

Hello,

I have been noticing an unusual thing in the value of precipitation pr (
regcm4.5) ,
when I set the output for 6 hours: the day sum becomes high compared to
when I set 12 hours day sum or 24 hours output. any guidance please .....

Also, Can anyone share with me the documents with all of regcm4 equations (
dynamics equations and physics(schemes) as well).

Thanks.
Warm  regards
Bon
Climatologist.

On Wed, 28 Aug 2024 at 13:01, <regcnet-request at lists.ictp.it> wrote:

>
>
> Today's Topics:
>
>    1. Model grid superimposed on high resolution nest (Alder, Jay)
>
>
> ----------------------------------------------------------------------
>
> From: "Alder, Jay" <jay.alder at oregonstate.edu>
> Subject: [RegCNET] Model grid superimposed on high resolution nest
>
> Hello all, I?ve found an issue in RegCM5 when nesting a 10 km simulation
> (MOLOCH) within a 50 km (MM4 hydrostatic) where there is clearly a grid
> artifact superimposed on the wind curl field at all atmospheric levels. I
> am mainly interested in wind stress curl (tauu / tauv) at the surface, but
> I noticed the stipple pattern is present throughout the atmospheric column.
> It is a 50 to 10 km nest, so perhaps this is stemming from a SST or surface
> pressure interpolation in ICBC. I?ve done a 15 km nest previously and don?t
> recall seeing the pattern, so it is likely scale-dependent. I?ve masked out
> the land in the attached sample to remove noise from the terrain, but the
> grid pattern is visible in the U/V curl field at all levels and all times
> if you set the color scales correctly.
>
> My current project focuses on wind stress changes, where this pattern is
> prominent throughout my figures, so I hope it can be solved before I submit
> our manuscript to a journal.
>
> Thank you
>
>
> [PastedGraphic-1.png]
>
> Jay Alder
> Geology, Minerals, Energy, and Geophysics Science Center
> U.S. Geological Survey
> https://www.usgs.gov/staff-profiles/jay-alder
> Oregon State University
> 104 CEOAS Admin Building
> Corvallis, OR 97331
>
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