EMC Synergy Meeting Highlights
March 28, 2005
This meeting was led by Peter Manousos and attended
by Eric Rogers, Jim Hoke, Bill Bua, David Plummer, John Ward, Mary Hart, Daniel
Pawlak, Keith Brill, Stephen Lord, and
Joe Sienkiewicz. Stephen Jascourt joined by telephone.
1. CCS
John Ward reported the CCS is running smoothly. Parallel GFS, NAM, and RUC-13 runs are
progressing normally. “GiG-e” circuits
have been installed, Frost will be back in one week, Snow will then go down
temporarily. As a reminder, the primary system is “White” (located in Fairmont,
WV).
2. Notes from EMC
a.
Global Modeling Group:
Stephen Lord reported the GFS
parallel is almost caught up to real time (running 5 retrospective days every
actual day). The scores from Dec-mid
Feb are better for the parallel than for the operational run for northern
hemisphere 500 mb. The scores are about
the same in the tropics and in the southern hemisphere. QPF scores are also better. Retrospective runs for August and September
2004 (focus on the tropics) are imminent. An evaluation announcement will be
sent very soon (GEMPAK files will be made available for parallel output).
b. Mesoscale Modeling Group: Eric Rogers reported the parallel NAM (NAMX) has been
running for about 2 weeks on the operational machine (much longer on the development machine) and evaluations are due in
by April 15. To date, statistics (from
mid December) show no real “deal killers” – therefore, operational
implementation is slated for early May (assuming positive evaluations). The North American Mesoscale WRF NAM-WRF is
scheduled to replace the NAM-Eta next March.
Prototype tests for full cycling using smaller domain nests have been
run. Parallel testing over the NAM
domain with full assimilation cycling incorporating the GSI analysis will begin
in-house shortly, but many problems are likely to arise. A clean parallel for
public viewing and NWS evaluation is anticipated to be ready by sometime in
June, hopefully. Additionally, WRF ensemble tests will begin this summer with a
targeted implementation in September.
c. Global Ensemble Prediction System: Stephen Lord reported parallel Ensemble testing will occur
after the T382 parallel becomes operational.
Retrospective runs will be conducted only. It has not yet been determined if an increase in resolution of
the members or an increase in the membership will be featured in the parallel.
d. Short Range Ensemble Prediction System: No report
e. Marine Modeling and Analysis Branch (MMAB): Stephen Lord reported HYCOM is coming along as planned. Additionally, although the surface low
tracking algorithm is still being refined, a 4th quarter implementation is
still on track.
3. Input from NCEP
Centers
a. AFWA (inquired by HPC on
behalf of AFWA) forwarded a question by email regarding comparison of WRF to
MM5. This inquiry was handed off to Dan
Pawlak.
b. A WFO (inquired by HPC
on behalf of the WFO) forwarded two questions by email, one regarding quality
of upper air observations over India and the other regarding confirmation of
core/physics package consistency in NCEP models between cycles. EMC is well aware of the quality of Indian
obs (the QC scheme automatically rejects obs it deems unusable) and indeed
there are NO changes to model physics or dynamic core between cycles.
c. HPC inquired of the Meso
Branch if multiple ptypes are on the table for operational inclusion in post
processed output. It was suggested for
the HPC SOO to supply this requirement directly to the Meso Branch Chief.
4. The next meeting will
be held April 18th, 2005 at noon in room 209 with remote conference
capability.