IAHR 2015 - Operational wave forecasts in the southern North Sea, Gautier, Deltares, 30062015
1. Caroline Gautier and Sofia Caires
June 30th, 2015
Operational Wave Forecasts in the
Southern North Sea
IAHR special session: Coasts at Threat in Europe
2. June 30th, 2015
Coasts at Threat in Europe
SWAN-North Sea for operational wave forecasts
- Waves during extreme storm surges
- Waves effecting vessel operations in approach channel
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4. Model set up SWAN-North Sea
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SWAN-DCSM
Rectangular
Area:
1500 km x 1700 km
Cell size:
3.6 km x 3.6 km
SWAN-ZUNO
Curvilinear
Area:
770 km x 750 km
Cell size:
200 m - 2 km x
200 m - 2 km
5. Model set up SWAN-North Sea
Wave boundary conditions for SWAN-DCSM:
WAM model by ECMWF (30 freq x 24 dir) 0:00 6:00 12:00 18:00…
dt = 6 hr
Wind:
KNMI’s HIRLAM11-v7.2 model 0:00 6:00 12:00 18:00…
dt = 1hr
Water levels:
WAQUA DCSMv6 0:00 6:00 12:00 18:00…
dt = 1hr
Currents (SWAN-ZUNO only):
WAQUA DCSMv6 0:00 6:00 12:00 18:00…
dt = 1hr
Bathymetry:
based on WAQUA DCSMv6 and ZUNOv4 (before calibration)
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6. Model set up SWAN-North Sea
June 30th, 2015 6
every 6 hour, a new SWAN run is started
6 hours hindcast + 48 hours forecast
time step: 1 hr