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Canada-Newfoundland Operational Oceanography Forecast System (C-NOOFS) produces daily forecast on an operational basis for the Northwest Atlantic (NWA). It uses the state-of-the-art numerical model Nucleus for European Modeling of the Ocean (NEMO) to compute the ocean state.
The system is meant to introduce improvements with respect to other available forecast systems in that the main region of simulation is the Canadian Atlantic waters including the Newfoundland and Labrador and Nova Scotia shelves with a better representation of the coastline and the bathymetry. In addition, the wind forcing field is provided by the Canadian atmospheric forecast system at Environment Canada (EC). Thorough validation with in-situ and remote sensing measurements is carried out (technical report on validation to be released).

C-NOOFS configuration history:

Version V0.0: December 2006:


C-NOOFS Modeling
  • North West Atlantic (NWA) grid configuration based on the global ORCA-025 with 1/4 degree in the horizontal and 46 levels in vertical.
  • The domain covers 103.12 W to 27.23 W in longitude and 26.69 N to 83.68 N in latitude.
  • Real time and forecasted hourly 10-m wind forcing comes from the merging of the Canadian Meteorological Services Global GEM low (100km) and high resolution regional GEM (25 km) models. The field is geographically interpolated into the C-NOOFS NWA grid.
  • Closed boundary conditions on the eastern and southern boundaries.
  • Initial states are taken from climatology.
  • The forecast is run daily.
  • Rigid-lid approximation
  • Output results of 3-D field of temperature, salinity, and ocean current are stored every hour.
  • 3-D ocean conditions are stored daily for initialization of the following forecast.
Version V0.1: January 2007:
  • Added weekly boundary conditions provided by the French Mercator-Ocean ocean forecasting group’s PSY3 Global forecast system.
  • Added weekly initial conditions also provided by Mercator-Ocean.
Version V0.2: March 2007:
  • Free surface approximation
  • Implementation of tidal forcing with one main component
  • Use of EC-CMC high resolution Global GEM model with 33 km resolution (instead of 100 km)
Version V0.3: September 2008:
  • Increase of the vertical resolution to 50 levels.
  • Use of Mercator-Ocean 50-level PSY3V2R2 data set to initialize and constrain the model at the boundaries.
  • No tidal forcing along the boundaries.
The V1 configuration to be implemented by Fall 2008 adds:
  • Increase in horizontal resolution to 1/12th of a degree
  • Increase in vertical resolution (50 levels) with very high resolution in the top 10 m.
  • Implementation of multiple tidal components
Additionally research is being carried out on the development and scientific versions of C-NOOFS on the following features:
  • Implementation of 2 way nesting for high resolution in specific areas
  • Implementation of heat and fresh water forcing from the atmosphere
  • Implementation of sea ice
  • Implementation of 2 way coupling with an Atmospheric model
  • Implementation of data assimilation of remotely sensed and in-situ data