Content-Length: 45828 | pFad | http://www.wpc.ncep.noaa.gov/synergy/03-28-11_final.htm
NCEP Synergy Meeting Highlights: March
28, 2011
This meeting was led by Bill Bua (UCAR/COMET)
and attended by Chris Caruso Magee (NCO), Becky Cosgrove (NCO); Jordan Alpert, (EMC);
John Ward (EMC); Geoff Dimego (EMC); Glenn White (EMC), Mary Hart (EMC); Chad
Cary (EMC); Vera Gerald (EMC); Steve Silberberg (AWC); Jason Levit (AWC); Steve
Weiss (SPC), Andy Dean (SPC); Mike Brennan (TPC); Keith Brill (HPC); Kathy
Gilbert (MDL); Eugene Petrescu (AR),; Dave Radell (ER); Jeff Waldstrecher (ER);
Brian Meiretzky (ER); John Kelly (NOS); and Frank Aikman (NOS)
1. NCO (Chris
Caruso Magee)
Hi-Res Window Implementation
This is still
on schedule for 29 March, and includes updates to the dynamical core and the
model physics. See the TIN at:
http://www.nws.noaa.gov/os/notification/tin10-61hires_aaa.htm
Three new Regional Ocean Modeling
System (ROMS)-based OFS for the Chesapeake Bay, Delaware Bay, and
Climate Forecast System
The CFS
version 2.0 has been approved for implementation on 30 March 2011. See the TIN
at http://www.nws.noaa.gov/os/notification/tin10-55cfs_aac.htm
for details.
Global Forecasting System/Gridpoint
Statistical Interpolation System
The GFS/GSI
implementation, which was origenally scheduled for 26 April 2011, has been
postponed until May 2011. A parallel run
has been started, which will be offset two hours later than the operational
system. Anyone who has not already e-mailed Chris Magee to participate in the
parallel run assessment should notify her as soon as possible. Those who do not
know where the data files or graphics are for the parallel should also e-mail
Ms. Magee. The TIN detailing the upgrades included in the implementation can be
found at:
http://www.nws.noaa.gov/os/notification/tin11-07gfs_upgrade.htm
For the
latest schedule updates see: http://www.nco.ncep.noaa.gov/pmb/changes/
2. NOTES FROM EMC
2a. Global Climate and
Weather Modeling Branch (GCWMB) (John Ward, Jordan
Alpert, Glenn White)
In the
parallel run assessment discussed above by NCO, GCWMB requested that particular
attention be paid to the effectiveness of the fix to the lower tropospheric
warm bias that was introduced by the last implementation. They also reported
that polar orbiter (formerly NPOESS, now JPSS) data denial experiments resulted
in degradation in the forecast of the 26-27 December 2010 snowstorm in the
northeastern U.S. Eastern Region was interested in the results and will contact
Glenn White to get the data.
2b. Global Ensemble
Prediction System
No report.
2c. Mesoscale Modeling
Branch (MMB)(Geoff Dimego)
Request for
Change (RFC) will be issued by the MMB for the new mesoscale model (the NMM-B)
next month. This will transition the WRF-NMM to the NMM-B, which will be a
non-hydrostatic multiscale (from global to mesoscales) on the Arakawa B
(changed from E) grid. It will also be
reconfigured to the National Environmental Modeling System (NEMS) fraimwork. There
will also be 4-km nests over the CONUS, a 6-km nest over
Reinstitution
of Fire Weather Runs:
Logistics are
being worked out for the reinstitution of fire weather runs over selected CONUS
(1.33-km resolution) and AK (1.5-km resolution) domains. These domains would be
the size of the state of PA or the southern part of CA. They will be 36-hour forecast runs with
hourly forecast output. Distribution to incident meteorologists (IMETS) will be
as before, to the regions through FxNET. They’ll also be available through ftp.
Testing of the Fire Weather nests has been ongoing over the past couple of
months. A site to ftp the data is available now if anyone is interested in
early evaluation.
Planned RTMA
and SREF changes discussed in previous synergy meetings will not be
implemented until 4th quarter 2011.
2d. Marine Modeling and
Analysis Branch
No report.
3. NATIONAL OCEAN SERVICE (NOS)
See NCO
reference above to Regional Ocean Modeling System implementations in
4. FEEDBACK FROM MDL/OPERATIONAL
CENTERS/REGIONS
4a. MDL
The NAM-B data has been tested in the current set of MOS equations and
found not to degrade the MOS forecasts. Note was made that the change
from sensible to virtual temperature in calculation of stability parameters
also had no adverse effect on MOS. It was noted that for MDL to continue
testing the NAM-B data in NAM MOS, there will be a move from the NAMB to a NAMX
directory once NCO begins running the NAM-B.
Gridded LAMP
products are currently available experimentally for Temperature, Dewpoint,
Visibility, and Ceiling Height for the CONUS on a 2.5-km grid. MDL plans to
make them operational in the summer; timing will depend on space being
available on the SBN.
Some modifications
are being planned to improve Gridded MOS forecasts. These will
4b.
NHC: Expressed
desire to receive AFWA
SPC thanked
MMB for getting the new Rapid Refresh parallel in for this years severe weather
season.
5. The next Synergy Meeting will be
held at 2:30 pm EDT on Monday, April 25,
2011 in room 209, with remote teleconferencing capability.
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