Initialization Fields and Model Forcings for CBOFS2 . Lyon Lanerolle 1,2 , Richard Patchen 1 and Frank Aikman III 1 1 National Oceanic and Atmospheric Administration (NOAA) National Ocean Service/Office of Coast Survey/Coast Survey Development Laboratory
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Initialization Fields and Model Forcings for CBOFS2
Lyon Lanerolle1,2, Richard Patchen1 and Frank Aikman III1
1National Oceanic and Atmospheric Administration (NOAA)
National Ocean Service/Office of Coast Survey/Coast Survey Development Laboratory
1315 East-West Highway, Silver Spring, MD 20910
2Earth Resources Technology (ERT) Inc.
10810 Guilford Road, Suite 105, Annapolis Junction, MD 20701
Synoptic Hindcast simulation period : June 01, 2003 – August 31, 2005
River volume discharge adjustment factors (Wen Long)
River volume discharges from USGS
River forcing at daily frequency
Discharges ramped-up in time over
5-day period (linearly)
Discharges distributed vertically
according to parabolic profile
When rivers distributed over multiple
cells, discharge scaled by cross-
Some tributaries combined (e.g.
Susquehanna, Choptank, Patuxent,
River T and S from CBP data for 2003-
NARR blended (via interpolation)
observations for winds, air T, air P
and RH (via DP)
Forcing fields are hourly
Avoid using NARR values on land
for winds, air T, RH and down. SW
Delete NARR grid nodes near obs.
to facilitate more effective blending
Winds at 10m, air T, RH at 2m and
LW down, net SW, air P at surface
Use 80% of NARR SW after compar-
ing with observations
Ramp-up winds over 5-days (linearly)
ROMS internally interpolates met.
fields via bi-cubic interpolation