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OAS accession Detail for 0084919
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| accessions_id: | 0084919 | archive |
|---|---|
| Title: | Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2012-01-01 to 2012-01-31 (NCEI Accession 0084919) |
| Abstract: | The NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) dataset comprises output fields from the daily operational RTOFS model runs conducted at the National Centers for Atmospheric Prediction. Each model run produces a series of gridded fields containing results of model computations for ocean temperature, salinity, currents, sea-surface height, and possibly other properties. The fields are encoded in the standard GRIdded Binary (GRIB) file format. NODC compiles a series of files into monthly accessions to facilitate archival storage and public access. Two different sets of output fields are included: 1) daily 3-dimensional fields reported on the model's native hybrid (isopycnal plus z-level) vertical coordinates (note: prior to June 6, 2007, these fields are interpolated to z-levels); and 2) hourly fields reported for the surface level only. Each daily model run produces a 24-hr hindcast as well as forecasts out to 120 hours. |
| Date received: | 20120131 |
| Start date: | 20120101 |
| End date: | 20120131 |
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| West boundary: | -105.03 |
| East boundary: | 22.215 |
| North boundary: | 75.245 |
| South boundary: | -26.5 |
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| Submitting institution: | US DOC; NOAA; NWS; National Centers for Environmental Prediction |
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| Supplementary information: | The dynamical model is HYCOM: - The model uses curvilinear coordinates in the horizontal and hybrid vertical coordinates in the vertical. - An overview of the HYbrid Coordinate Ocean Model (HYCOM) - Orthogonal grid (1200 x 1684 points) - 26 vertical coordinates (21 isopycnal, 5 z-level) Surface Forcing: - forcing fields from 3-hour NCEP (GDAS/GFS) model Open Boundaries: - Relaxed to NCEP climatology. Also relaxed to climatology in the Straits of Gibraltar region Tides: - M2, S2, N2, K1, P1, O1, K2, Q1 tidal modes - Body and boundary tides Rivers: - From daily USGS data and RIVDIS climatology Data Assimilation: - SST: from GOES AVHRR and in-situ - SSH, T, S: using SLA from JASON GFO (not activated) - T,S: from ARGOS, XBT, CTD (not activated) Model Parameters: - Time step: split-explicit 150 sec baroclinic, 5 sec barotropic - Advection scheme: 2nd order Flux Corrected Transport (FCT) with density and salinity as the advected scalars - Horizontal momentum viscosity: additive laplacian with biharmonic operators --+ Laplacian: deformation factor = 0.1, diffusion velocity = 0.005 m/s --+ Biharmonic: deformation factor = 0.0, diffusion velocity = 0.005 m/s - Laplacian scalar diffusion (diffusion velocity: 0.005 m/s) - Vertical viscosity and mixing: GISS - Quadratic bottom friction coefficient: 0.003 - Bottom boundary layer thickness: 10 m Documentation for RTOFS model output can be obtained from NCEI accession 0026419. As it becomes available, new documentation about RTOFS model output and/or processing will be added to NCEI accession 0026419. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. |
| Availability date: | |
| Metadata version: | 4 |
| Keydate: | 2012-02-06 13:37:43+00 |
| Editdate: | 2022-01-12 20:12:05+00 |