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NOAA Wang Sheeley Arge (WSA) Enlil - Registry of Open Data on AWS
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NOAA Wang Sheeley Arge (WSA) Enlil

climate meteorological solar weather

Description

The WSA-Enlil heliospheric model provides critical information regarding the propagation of solar Coronal Mass Ejections (CMEs) and transient structures within the heliosphere. Two distinct models comprise the WSA-Enlil modeling system; 1) the Wang-Sheeley-Arge (WSA) semi-empirical solar coronal model, and 2) the Enlil magnetohydrodynamic (MHD) heliospheric model. MHD modeling of the full domain (solar photosphere to Earth) is extremely computationally demanding due to the large parameter space and resulting characteristic speeds within the system. To reduce the computational burden and improve the timeliness (and hence the utility in forecasting space weather disturbances) of model results, the domain of the MHD model (Enlil) is limited from 21.5 Solar Radii (R_s) to just beyond the orbit of Earth, while the inner portion, spanning from the solar photosphere to 21.5R_s, is characterized by the WSA model. This coupled modeling system is driven by solar synoptic maps composed of numerous magnetogram observations from the National Solar Observatory’s (NSO) Global Oscillation Network Group (GONG). Such maps provide a full surface description of solar photospheric magnetic flux density, while not accounting for the evolution of surface features for regions outside the view of the observatories.

In its current configuration (NOAA WSA-Enlil V3.0), the modeling system consists of WSA V5.4 and Enlil V2.9e. The system relies upon the zero point corrected GONG synoptic maps (mrzqs) to define the inner photospheric boundary.

The operational data files provided in this bucket include NetCDF files containing 3-dimensional gridded neutral density from 100 to 1000 km, Total Electron Content (TEC), and Maximum Usable Frequency (MUF).

The full 3D datasets from the operational model are provided here as compressed tar files with naming convention wsa_enlil.mrid########.full3d.tgz. These files consist of the full set of 3D datacubes (tim..nc), all time series results stored at predefined observation points (evo..nc), and supplemented by the operational CME fits (conefiles) and the operationally employed photospheric boundary synoptic maps (GONG mrzqs files).

Update Frequency

Only model output from model runs containing CMEs are provided here. As these runs are executed on demand, there is no regular update frequency.

License

Open Data. There are no restrictions on the use of this data.

Documentation

https://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction

Managed By

See all datasets managed by NOAA.

Contact

For any questions regarding WSA-Ensil data, please contact Eric Adamson (eric.adamson@noaa.gov)
For data delivery or any general questions regarding the NOAA Open Data Dissemination (NODD) Program, email the NODD Team at 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 NODD team by emailing nodd@noaa.gov

How to Cite

NOAA Wang Sheeley Arge (WSA) Enlil was accessed on DATE from https://registry.opendata.aws/noaa-wsa-enlil.

Resources on AWS

  • Description
    NOAA WSA-Enlil Products
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::noaa-wsa-enlil-pds
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://noaa-wsa-enlil-pds/
    Explore
    Browse Bucket
  • Description
    New data notifications for NOAA WSA-Enlil Products, only Lambda and SQS protocols allowed
    Resource type
    SNS Topic
    Amazon Resource Name (ARN)
    arn:aws:sns:us-east-1:709902155096:NewSWPCWSAEnlilObject
    AWS Region
    us-east-1

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