Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2008-01-01 to 2008-01-31 (NCEI Accession 0046513)
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.
Dataset Citation
- Cite as: US DOC/NOAA/NWS > National Centers for Environmental Prediction (2008). Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2008-01-01 to 2008-01-31 (NCEI Accession 0046513). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0046513. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0046513
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2008-01-01 to 2008-01-31 |
Spatial Bounding Box Coordinates |
West: -105.03
East: 22.215
South: -26.5
North: 75.245
|
Spatial Coverage Map |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental 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. |
Purpose | The purpose of the NOAA Real-Time Ocean Forecast System (Atlantic) is to generate daily hindcasts/nowcasts (i.e., analysis) and forecasts out to 120 hours of ocean properties for the Atlantic Ocean including all of the coastal regions of the United States East and Gulf Coasts. The development of RTOFS (Atlantic) was started due to a growing demand for high-resolution basin-wide ocean information as well as improved surface forecasts in coastal areas. RTOFS (Atlantic) demand was recognized by the U.S. National Research Council which recommended that the nation establish an "operational capability for nowcasting and forecasting currents, water temperatures and related fields to support coastal and offshore operations and management" (National Research Council, 1989). Development of RTOFS (Atlantic) for the Atlantic, Caribbean and the Gulf of Mexico began in 2004. |
Use Limitations |
|
Dataset Citation |
|
Cited Authors | |
Contributors | |
Resource Providers | |
Publishers |
Use Constraints |
|
Access Constraints |
|
Fees |
|
Lineage information for: dataset | |
---|---|
Processing Steps |
|
Output Datasets |
|
Lineage information for: repository | |
---|---|
Processing Steps |
|
Last Modified: 2023-11-16T13:15:47Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov