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-------- Original Message --------
803
NOUS41 KWBC 301850
PNSWSH
Technical Implementation Notice 12-35
NOAAs National Ocean Service Headquarters Washington DC
Related by National Weather Service Washington DC
250 PM EDT Mon Jul 30 2012
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS and NOS partners and NWS and NOS employees
From: Peter Stone
Chief, Oceanographic Division
NOS Center for Operational Oceanographic
Products and Services (CO-OPS)
Subject: Changes in lateral open boundary conditions for the
National Ocean Services new Operational Forecast
System for the Columbia River and Estuary (CREOFS),
Effective September 25, 2012
Effective September 25, 2012, beginning at 1500 Coordinated
Universal Time (UTC), 10:00 AM EDT, the NOAA/National Ocean
Service CREOFS will be forced by NCEPs global operational Real-
Time Ocean Forecast System (RTOFS). CREOFS field outputs will be
separated into multiple NetCDF files. For the nowcast cycle, the
field output NetCDF file name is like
nos.creofs.fields.n{HH}.{YYYYMMDD}.t{CYC}z.nc
For forecast cycle, the field output NetCDF file name is like
nos.creofs.fields.f{HH}.{YYYYMMDD}.t{CYC}z.nc
where HH is the nowcast/forecast hour (i.e. 00, 01,...48) and CYC
is the model cycle runtime, i.e., 03, 09, 15, 21.
CREOFS will provide users with nowcast (analyses of near present)
and forecast guidance of the three-dimensional physical
conditions of the Columbia River and Estuary, including surface
water levels and 3-D water currents, water temperature, and
salinity out to 48 hours.
Currently, most of NOS' 3-D Operational Forecast Systems (OFS)
rely on NCOM for their lateral ocean boundary conditions. The
Naval Oceanographic Office (NAVO) is transitioning to a new
computer system and only plans to transition Global HYCOM to the
new system. Therefore, NAVO will stop running Global NCOM in
September, 2012. Global RTOFS runs at NCEP on the same computer
system as the NOS OFS; thereby making G-RTOFS model outputs
directly accessible to NOS OFS. As a result, G-RTOFS is the first
choice for lateral ocean open boundary conditions for all NOS
OFS. The Navys Global HYCOM will serve as a backup for NCEPs G-
RTOFS. G-HYCOM uses the same numerical ocean model and has
similar system configurations as NCEPs RTOFS making the outputs
from both G-RTOFS and G-HYCOM similar and comparable.
Gridded and point forecast guidance from CREOFS will be available
in netCDF files on the NCEP server at NOAAs Web Operations
Centers (WOC) (ftpprd.ncep.noaa.gov) in the directory
/pub/data/nccf/com/nos/prod/creofs.yyyymmdd
at NOS/CO-OPS OPeNDAP server
http://opendap.co-ops.nos.noaa.gov/netcdf/
and at CO-OPS THREDDS server
http://opendap.co-ops.nos.noaa.gov/thredds/catalog.html CREOFS output is displayed on the CO-OPS web page at, http://tidesandcurrents.noaa.gov Additional information about CREOFS can be found at http://www.tidesandcurrents.noaa.gov/models.html CREOFS predictions are used by commercial and recreational mariners and fishermen, emergency managers, search and rescue operations, and NWS marine weather forecasters. The development and implementation of CREOFS was a joint project of the NOS/Office of Coast Survey (OCS), the NOS/Center for Operational Oceanographic Products and Services (CO-OPS), NWS/NCEP/NCO and the Oregon Health & Science University. CREOFS is monitored 24 x 7 by both NCO/NCEP and CO-OPS Continuous Real-Time Monitoring System (CORMS) personnel. If you have any questions concerning these changes, please contact: Dr. Aijun Zhang NOS/CO-OPS Silver Spring, MD Email: Aijun.Zhang@xxxxxxxx or Dr. Frank Aikman Marine Modeling and Analysis Branch Coast Survey Development Laboratory NOAA/NOS/Office of Coast Survey Silver Spring, MD Email: Frank.Aikman@xxxxxxxx For questions regarding the dataflow aspects with respect to the NCEP server at the WOC, please contact: Rebecca Cosgrove NCEP/NCO Dataflow Team Camp Springs, MD Email: ncep.list.pmb-dataflow@xxxxxxxx National Technical Implementation Notices are online at: http://www.weather.gov/os/notif.htm $$
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