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2023 National Offshore Wind data set (NOW-23)

Publicly accessible License 

The 2023 National Offshore Wind data set (NOW-23) is the latest wind resource data set for offshore regions in the United States, which supersedes, for its offshore component, the Wind Integration National Dataset (WIND) Toolkit, which was published about a decade ago and is currently one of the primary resources for stakeholders conducting wind resource assessments in the continental United States.

The NOW-23 data set was produced using the Weather Research and Forecasting Model (WRF) version 4.2.1. A regional approach was used: for each offshore region, the WRF setup was selected based on validation against available observations. The WRF model was initialized with the European Centre for Medium Range Weather Forecasts 5 Reanalysis (ERA-5) data set, using a 6-hour refresh rate. The model is configured with an initial horizontal grid spacing of 6 km and an internal nested domain that refined the spatial resolution to 2 km. The model is run with 61 vertical levels, with 12 levels in the lower 300m of the atmosphere, stretching from 5 m to 45 m in height. The MYNN planetary boundary layer and surface layer schemes were used the North Atlantic, Mid Atlantic, Great Lakes, Hawaii, and North Pacific regions. On the other hand, using the YSU planetary boundary layer and MM5 surface layer schemes resulted in a better skill in the South Atlantic, Gulf of Mexico, and South Pacific regions. A more detailed description of the WRF model setup can be found in the WRF namelist files linked at the bottom of this page.

For all regions, the NOW-23 data set coverage starts on January 1, 2000. For Hawaii and the North Pacific regions, NOW-23 goes until December 31, 2019. For the South Pacific region, the model goes until 31 December, 2022. For all other regions, the model covers until December 31, 2020. Outputs are available at 5 minute resolution, and for all regions we have also included output files at hourly resolution. The NOW-23 data are provided here as HDF5 files. Examples of how to use the HSDS Service to Access the NOW-23 files are linked below. A list of the variables included in the NOW-23 files is also linked below.

No filters have been applied to the raw WRF output.

Citation Formats

National Renewable Energy Laboratory. (2020). 2023 National Offshore Wind data set (NOW-23) [data set]. Retrieved from https://dx.doi.org/10.25984/1821404.
Export Citation to RIS
Bodini, Nicola, Optis, Mike, Rossol, Michael, Rybchuk, Alex, Redfern, Stephanie, Lundquist, Julie K., and Rosencrans, David. 2023 National Offshore Wind data set (NOW-23). United States: N.p., 01 Jan, 2020. Web. doi: 10.25984/1821404.
Bodini, Nicola, Optis, Mike, Rossol, Michael, Rybchuk, Alex, Redfern, Stephanie, Lundquist, Julie K., & Rosencrans, David. 2023 National Offshore Wind data set (NOW-23). United States. https://dx.doi.org/10.25984/1821404
Bodini, Nicola, Optis, Mike, Rossol, Michael, Rybchuk, Alex, Redfern, Stephanie, Lundquist, Julie K., and Rosencrans, David. 2020. "2023 National Offshore Wind data set (NOW-23)". United States. https://dx.doi.org/10.25984/1821404. https://data.openei.org/submissions/4500.
@div{oedi_4500, title = {2023 National Offshore Wind data set (NOW-23)}, author = {Bodini, Nicola, Optis, Mike, Rossol, Michael, Rybchuk, Alex, Redfern, Stephanie, Lundquist, Julie K., and Rosencrans, David.}, abstractNote = {The 2023 National Offshore Wind data set (NOW-23) is the latest wind resource data set for offshore regions in the United States, which supersedes, for its offshore component, the Wind Integration National Dataset (WIND) Toolkit, which was published about a decade ago and is currently one of the primary resources for stakeholders conducting wind resource assessments in the continental United States.

The NOW-23 data set was produced using the Weather Research and Forecasting Model (WRF) version 4.2.1. A regional approach was used: for each offshore region, the WRF setup was selected based on validation against available observations. The WRF model was initialized with the European Centre for Medium Range Weather Forecasts 5 Reanalysis (ERA-5) data set, using a 6-hour refresh rate. The model is configured with an initial horizontal grid spacing of 6 km and an internal nested domain that refined the spatial resolution to 2 km. The model is run with 61 vertical levels, with 12 levels in the lower 300m of the atmosphere, stretching from 5 m to 45 m in height. The MYNN planetary boundary layer and surface layer schemes were used the North Atlantic, Mid Atlantic, Great Lakes, Hawaii, and North Pacific regions. On the other hand, using the YSU planetary boundary layer and MM5 surface layer schemes resulted in a better skill in the South Atlantic, Gulf of Mexico, and South Pacific regions. A more detailed description of the WRF model setup can be found in the WRF namelist files linked at the bottom of this page.

For all regions, the NOW-23 data set coverage starts on January 1, 2000. For Hawaii and the North Pacific regions, NOW-23 goes until December 31, 2019. For the South Pacific region, the model goes until 31 December, 2022. For all other regions, the model covers until December 31, 2020. Outputs are available at 5 minute resolution, and for all regions we have also included output files at hourly resolution. The NOW-23 data are provided here as HDF5 files. Examples of how to use the HSDS Service to Access the NOW-23 files are linked below. A list of the variables included in the NOW-23 files is also linked below.

No filters have been applied to the raw WRF output.}, doi = {10.25984/1821404}, url = {https://data.openei.org/submissions/4500}, journal = {}, number = , volume = , place = {United States}, year = {2020}, month = {01}}
https://dx.doi.org/10.25984/1821404

Details

Data from Jan 1, 2020

Last updated Mar 12, 2024

Submitted Sep 15, 2021

Organization

National Renewable Energy Laboratory

Contact

Nicola Bodini

Authors

Nicola Bodini

National Renewable Energy Laboratory

Mike Optis

National Renewable Energy Laboratory

Michael Rossol

National Renewable Energy Laboratory

Alex Rybchuk

National Renewable Energy Laboratory

Stephanie Redfern

National Renewable Energy Laboratory

Julie K. Lundquist

University of Colorado

David Rosencrans

University of Colorado

Research Areas

DOE Project Details

Project Name A Validated National Offshore Wind Resource Dataset with uncertainty Quantification (NYSERDA)

Project Number FY21 AOP 1.4.91.404

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