[Ncep.list.nos-nowcoast-status] NOAA/NOS nowCOAST Status Message - New version of LEOFS
NOAA/NOS nowCOAST Status Message Mailing List
ncep.list.nos-nowcoast-status at lstsrv.ncep.noaa.gov
Tue May 3 20:48:11 UTC 2016
NOAA/NOS nowCOAST Status Message
4:30PM EDT Tuesday, May 3, 2016
A minor upgrade of nowCOAST was implemented today in order to process
the forecast guidance from the new version of NOS' Lake Erie Operational
Forecast System. However, users do not need to do anything differently
to obtain maps of predictions from the new LEOFS via nowCOAST's map
services.
LEOFS is part of NOS' Great Lakes Operational Forecast System (GLOFS)
which provides predictions (guidance) of water levels, water currents
and water temperatures in the 5 Great Lakes (Erie, Michigan, Superior,
Huron and Ontario) for the commercial, recreation, and emergency
response communities. The upgrade of LEOFS is a collaborative effort of
NOAA’s Great Lakes Environmental Laboratory, NOS/Coast Survey
Development Laboratory, NOS/Center for Operational Products and
Services, and NWS/NCEP Central Operations.
A few of the upgrade highlights:
1) Use the Finite Volume Community Ocean Model (FVCOM) as the core 3-D
ocean circulation forecast model instead of the Princeton Ocean Model
2) Horizontal resolution increased from 5km lake wide to 400m near shore
to 3.5km offshore
3) Vertical resolution increased from 10 to 20 sigma layers
4) Use lateral boundary conditions for water levels and water
temperatures based on near-real-time observations
5) Forecast cycle includes heat flux input as well wind forcing (present
version does not include heat flux, just surface wind forcing)
6) Nowcast cycle forced by NOAA High Resolution Rapid Refresh 3km
gridded 2-hr meteorological forecast guidance while forecast cycle
forced by NWS NDFD 2.5km gridded meteorological forecasts
Additional information can be found in the NOS Technical Implementation
Notice available at
http://www.nws.noaa.gov/os/notification/tin16-08nos_leofsaaa.htm
John Kelley
nowCOAST Project Manager
NOAA/NOS/CSDL
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