Re: RAP/HRRR CONDUIT Upgrade

Hello Tom and Steve,

The parallel data for the RAP and HRRR model is now available on para-nomads (http://para.nomads.ncep.noaa.gov/)

In the prior email I listed changes that may affect conduit. Please let us know if you need any changes to which data we are hosting to conduit. The 30-day evaluation of these models is starting tomorrow. Thank you for your help.

-Tony

On Fri, May 4, 2018 at 3:29 PM, Carissa Klemmer - NOAA Federal <address@hidden> wrote:

Hi Tom, Steve,

I'm adding ldm support email to make sure you see this.

Carissa Klemmer
NCEP Central Operations
Dataflow Team Lead
301-683-3835

On Wed, Apr 18, 2018 at 5:44 PM, Tony Salemi - NOAA Federal <address@hidden> wrote:

Tom and Steve,

1) With the RAP upgrade, there will no longer be the CICE variable. This variable is being replaced by full vertical profile of the cloud ice mixing ratio (kg/kg) on all grids which contain a cloud ice profile (13 km native and pressure level, 32 km full domain, 16 km Alaska, 13 km CONUS native level, and 20 km CONUS).

2) For cycles 3,9,15 and 21, the forecast is being extended to f39. For awp236, this represents an increase of ~65MB/cycle and for awp252 this is an increase of ~400MB/cycle. These additional forecast hours will add ~1.9GB/day.

3) If you do not want the extra forecast hours, the awp236 will have no size change and the awp252 will decrease by 40MB/cycle. With the 252 size decrease it will represent 160MB/day less data.

4) The HRRR has extended forecast hours for the 00, 06,12 and 18 cycles; however, the sub-hourly does not have these extended hours. A normal conus cycle is 1.4GB and the extended cycles are 3.3GB. This is would be an additional 33.6GB/day for regular hours only and 41.2GB/day to include extended forecast hours.  The HRRR now has an Alaska run which occurs every three hours. The Alaska sub-hourly (only ever to 18hrs) is 2.0GB/cycle. This would be an additional 16GB/day.

5) The variable included in the sub-hourly HRRR conus are: CFRZR CICEP CPOFP CRAIN CSNOW DLWRF DPT DSWRF GUST HGT PRATE PRES REFC REFD RETOP SBT113 SBT114 SBT123 SBT124 SPFH TMP UGRD ULWRF UPHL USWRF VBDSF VDDSF VGRD VIL VIS WIND in Lambert Conformal: (1799 x 1059) grid

The variables in the sub-hourly AK HRRR are: CFRZR CICEP CPOFP CRAIN CSNOW DLWRF DPT DSWRF GUST HGT PRATE PRES REFC REFD RETOP SBT113 SBT114 SBT123 SBT124 SPFH TMP UGRD ULWRF UPHL USWRF VBDSF VDDSF VGRD VIL VIS WIND in the polar steriographic (1299x919) grid

Please let me know if you have further questions. Thank you.

-Tony

On Thu, Apr 12, 2018 at 3:36 PM, Carissa Klemmer - NOAA Federal <address@hidden> wrote:

Hi Tom, Steve,

Tony is working on the package for the RAP/HRRR upgrade and will provide you information on what is changing and also some of my homework of possible additions to CONDUIT.

Tony, they need to know the following please:

1. What variables are changing with the RAP grid 236 and 252

2. What are the new additional forecast hours that will be available, and what are the volumes of those additions? This will help them decide if they can support the additions. We may need to keep conduit status quo.

3. What is the volume increase (if any) if we keep conduit only getting forecast hours up to 21

4. What is the volume of a cycle of the sub-hourly (15 minute) HRRR

5. Please provide them the variables/grid info of the sub-hourly HRRR for their review

Carissa Klemmer
NCEP Central Operations
Dataflow Team Lead
301-683-3835

--

Tony Salemi - IT Specialist
NCEP Central Operations
Dataflow Analyst

5830 University Research Ct. Suite 1028

College Park, MD 20740
301-683-3908

--

Tony Salemi - IT Specialist
NCEP Central Operations
Dataflow Analyst

5830 University Research Ct. Suite 1028

College Park, MD 20740
301-683-3908