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This is a 20-year global wave reforecast generated by WAVEWATCH III model (https://github.com/NOAA-EMC/WW3) forced by GEFSv12 winds (https://noaa-gefs-retrospective.s3.amazonaws.com/index.html). The wave ensemble was run with one cycle per day (at 03Z), spatial resolution of 0.25°X0.25° and temporal resolution of 3 hours. There are five ensemble members (control plus four perturbed members) and, once a week (Wednesdays), the ensemble is expanded to eleven members. The forecast range is 16 days and, once a week (Wednesdays), it extends to 35 days. More information about the wave modeling, wave grids and calibration can be found in the WAVEWATCH III regtest ww3_ufs1.3 (https://github.com/NOAA-EMC/WW3/tree/develop/regtests/ww3_ufs1.3).
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The 20 years of reforecast results were analyzed and quality-controlled. Three output types are available
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1) Global wave fields, in grib2 format, with several variables including significant wave height, period, direction, and par[...]
Overview
This is a 20-year global wave reforecast generated by WAVEWATCH III model (https://github.com/NOAA-EMC/WW3 ) forced by GEFSv12 winds (https://noaa-gefs-retrospective.s3.amazonaws.com/index.html ). The wave ensemble was run with one cycle per day (at 03Z), spatial resolution of 0.25°X0.25° and temporal resolution of 3 hours. There are five ensemble members (control plus four perturbed members) and, once a week (Wednesdays), the ensemble is expanded to eleven members. The forecast range is 16 days and, once a week (Wednesdays), it extends to 35 days. More information about the wave modeling, wave grids and calibration can be found in the WAVEWATCH III regtest ww3_ufs1.3 (https://github.com/NOAA-EMC/WW3/tree/develop/regtests/ww3_ufs1.3 ).
The 20 years of reforecast results were analyzed and quality-controlled. Three output types are available
- Global wave fields, in grib2 format, with several variables including significant wave height, period, direction, and partitions;
- Point output tables, in netcdf format, containing time-series of significant wave height, period and direction, for 658 points (latitude/longitude informed) at the positions of wave buoys; and,
- For the same positions, spectral outputs are available, in netcdf format, containing the full spectra (2D directional spectrum).
Each file refers to one forecast cycle with date (year, month, day) written in the file name.
This effort has been funded by a NOAA OAR/NWS Service Level Agreement (SLA) whereby NOAA/OAR supports R&D and transition needed for mission delivery of climate
services within NWS. The SLA project is led by NWS/NCEP/Ocean Prediction Center in collaboration with NWS/NCEP/Environmental Modeling Center and NWS/NCEP/Climate
Prediction Center. This is a project also in cooperation with NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) and the University of Miami’s
Cooperative Institute for Marine and Atmospheric Studies (CIMAS).
The following github repository has examples and scripts to support users to download, visualize, and process the WAVEWATCH III output files
https://github.com/ricampos/gefswaves_reforecast
The reforecast simulations were generated on the supercomputer Orion, which is funded via a grant from NOAA to support research activities in environmental
modeling, including weather modeling and simulation
https://www.noaa.gov/organization/information-technology/orion
Features and programs
Open Data Sponsorship Program
This dataset is part of the Open Data Sponsorship Program, an AWS program that covers the cost of storage for publicly available high-value cloud-optimized datasets.
Pricing
This is a publicly available data set. No subscription is required.
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Delivery details
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Open data resources
Available with or without an AWS account.
- How to use
- To access these resources, reference the Amazon Resource Name (ARN) using the AWS Command Line Interface (CLI). Learn more
- Description
- NOAA Wave Ensemble Reforecast Data
- Resource type
- S3 bucket
- Amazon Resource Name (ARN)
- arn:aws:s3:::noaa-nws-gefswaves-reforecast-pds
- AWS region
- us-east-1
- AWS CLI access (No AWS account required)
- aws s3 ls --no-sign-request s3://noaa-nws-gefswaves-reforecast-pds/
- Description
- New data notifications for NOAA Wave Ensemble Reforecast, only Lambda and SQS protocols allowed
- Resource type
- SNS topic
- Amazon Resource Name (ARN)
- arn:aws:sns:us-east-1:709902155096:NewWERObject
- AWS region
- us-east-1
Resources
Vendor resources
Support
Contact
For questions related to wave modeling and the ensemble reforecast available, please contact Ricardo Martins Campos, email ricardo.campos@noaa.gov .
For any questions regarding data delivery not associated with this platform or any general questions
regarding the NOAA Open Data Dissemination Program, email nodd@noaa.gov .
We also seek to identify case studies on how NOAA data is being used and will be featuring those
stories in joint publications and in upcoming events. If you are interested in seeing your story
highlighted, please share it with the NOAA NODD team at nodd@noaa.gov .
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How to cite
NOAA Wave Ensemble Reforecast was accessed on DATE from https://registry.opendata.aws/noaa-wave-ensemble-reforecast .
License
NOAA data disseminated through NODD are open to the public and can be used as desired.
NOAA makes data openly available to ensure maximum use of our data, and to spur and encourage exploration and innovation throughout the industry. NOAA requests attribution for the use or dissemination of unaltered NOAA data. However, it is not permissible to state or imply endorsement by or affiliation with NOAA. If you modify NOAA data, you may not state or imply that it is original, unaltered NOAA data.
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