Wave model – ARC inshore model

To look at the processes that affect waves during storm events and develop a wave climate for New Zealand Purpose: For Auckland Regional Council to build on general info for coastal management.

Hindcast wave conditions based on the 20 year model simulation.

New Zealand wide

1979-1998 data.

Climate model for the Hauraki Gulf using inputs from the Hindcast deepwater wave model (> 1 km offshore conditions) based on 1979-1998 simulated waves from wind data from ECMWF, and local inshore wind data. Frequency of collection: every 3 hours

Deep water simulation so doesn't take into account shallow water refraction and diffraction. Gaps in collection: None Attribute accuracy: Inshore calibrations for many hindcast sites. Nearest wave buoys for Waikato Region are Maui on West Coast. Mokohinau (ARC) still operating. Katikati buoy operating from 1991-95.

electronic, papers Digital Format: binary form can be processed to ASCI

Hazard predictions Coastal management – housing/structure setbacks

Can request site specific data plus some summary data (mean wave height). Contact NIWA for full data. Sensitivity/Confidentiality: See NIWA

Ongoing

Additional comments: Forecast model in development based on predicted atmospheric conditions (wind) NOAA NCEP Ocean Modeling Branch (which is wind predictions) plus atmospheric modeling.