Ocean models
Ocean models simulate ocean currents, sea temperature and salinity. meteoblue offers data from the following sources:
- WW3 (NOAA / NCEP)
- RTOFS (NOAA / NCEP)
WW3 (NOAA / NCEP)
| Field | Metadata |
|---|---|
| Title | Wavewatch III |
| Short Title | WW3 |
| Version | v5.16, 2017 |
| Theme | Sea, ocean, wave, swell, wind wave direction, height of swell waves |
| Period of Time | |
| Frequency | Daily |
| Update timelag | < 24 hours |
| Time-resolution | hourly |
| Spatial Type | Plate carrée grid (rectangular projection) |
| Spatial extend | global |
| Spatial resolution | 40 km |
| Coordinate system | WGS-84 |
| Earth model | WGS-84 |
| Spatial reference system | |
| Publisher | NOAA / NCEP |
| Date First Published | 2017 (first version 1997) |
| Date Obsolete | |
| Description | For the entire domain of the regional models and for several views of the global model, maps of the significant wave heights (Hs), peak wave periods (Tp) and wind speeds (U10) are available. The peak wave period is estimated as the period corresponding to the highest peak in the one dimensional frequency spectrum of the wave field. Some of the maps also depict wind barbs and peak wave directions. The peak direction is defined as the mean direction in the frequency bin corresponding to Tp. The run date and cycle are shown at the top of each map. The originating model (global, regional) is identified at the top left corner of the plot, the valid time at the top right corner. 00z equals midnight GMT, 12z equals noon GMT, etc. The maps are presented as .gif files. The output locations are marked with yellow squares with red borders wherever the map resolution allows for identification of individual points. Dark green identifies land, grey identifies ice. |
| Detailed specification | http://polar.ncep.noaa.gov/waves/wavewatch/ |
| Homepage URL | http://polar.ncep.noaa.gov/waves/index2.shtml? |
| Security Classification | public |
| Access Level | https://www.usa.gov/government-works |
| License | public |
RTOFS (NOAA / NCEP)
| Field | Metadata |
|---|---|
| Title | Real time ocean forecast system |
| Short Title | RTOFS |
| Version | v1.1.2 |
| Theme | Sea, ocean, salinity, currents, temperature |
| Period of Time | 2018 to present |
| Frequency | Daily |
| Update timelag | < 24 hours |
| Time-resolution | hourly |
| Spatial Type | Mercator grid and arctic, bipolar patch |
| Spatial extend | global |
| Spatial resolution | 18 km |
| Coordinate system | WGS-84 |
| Earth model | WGS-84 |
| Spatial reference system | |
| Publisher | NOAA / NCEP |
| Date First Published | 2017 |
| Date Obsolete | |
| Description | Based on the successful design of the existing operational Atlantic RTOFS model (Mehra and Rivin, 2010), the global ocean forecast system runs once a day and produces 2 days of nowcasts and up to 8 days of forecasts using the daily initialization fields produced at NAVOCEANO using NCODA, a 3D multi-variate data assimilation methodology (Cummings, 2005). The data types assimilated include in situ profiles of temperature and salinity from a variety of sources and remotely sensed SST, SSH and sea-ice concentrations. The operational ocean model configuration has 32 hybrid layers and a horizontal grid size of (4500 x 3298) . The grid has an Arctic bi-polar patch north of 47°N and a Mercator projection south of 47°N through 78.6°S (Figure 1 below). The coastline is fixed at 10 m isobath with open Bering Straits. The potential temperature is referenced to 2000 m depth (sigma-2) and the first level is fixed at 1 m depth. The dynamic ocean model is coupled to a thermodynamic energy loan ice model and uses the KPP mixed layer formulation (Large et al., 1994). The forecast system is forced with 3-hourly momentum, radiation and precipitation fluxes from the operational Global Forecast System (GFS) fields. |
| Detailed specification | Bleck, R., 2002: An oceanic general circulation model framed in hybrid isopycnic-cartesian coordinates. Ocean Modeling, 4, 55-88. |
| Homepage URL | http://polar.ncep.noaa.gov/global/about/ |
| Security Classification | public |
| Access Level | https://www.usa.gov/government-works |
| License | public |