Runs-on-Request

Runs on Request (ROR) is a service provided by NASA's Community Coordinated Modeling Center (CCMC) that allows users to request simulations using space weather models. These models simulate various physical processes in our solar system, from the Sun to Earth's and Mar's magnetosphere and ionosphere.

The ROR system enables researchers, educators, and space weather forecasters to run sophisticated numerical models without having to install and configure these complex software systems themselves.

To submit a new simulation request:

1. Click on "Request New ROR Simulation" in the Execute card
2. Browse available models or search for a specific model
3. Select the model you wish to use
4. Fill out the parameter form with your simulation requirements
5. Submit your request and note the run ID for tracking

After submission, you can track your simulation progress using the Dashboard & Archive Search or Track Active Runs features.

Simulation completion time varies based on several factors:

• Model complexity: Physics based models vs. empirical models
• Time period: Duration of simulation coverage
• Spatial resolution: Grid density and domain size
• System load: Current queue length and resource availability

Simple runs may complete in minutes to hours, while complex global simulations can take several days. Check the current system status on the Run Dashboard for estimated wait times.

The Selected Time Periods represent carefully chosen intervals that showcase significant space weather phenomena, particularly for the Heliophysics Big Year initiative.

These periods feature:

• Enhanced model coverage with multiple simulation runs
• Comprehensive data sets for comparative studies
• Coordinated modeling efforts across different physical domains
• Validation data from multiple spacecraft and ground-based observations

Researchers can access pre-run simulations for these periods or use them as benchmarks for their own modeling studies.

When using ROR results in scientific publications, please follow these steps:

1. Acknowledge model developers: Cite the original papers describing the numerical models
2. Credit CCMC: Acknowledge the Community Coordinated Modeling Center for hosting the simulation
3. Include run details: Reference your specific run ID(s) in the acknowledgments
4. Report publication: Submit your publication details to CCMC for our records

Detailed citation guidelines and examples are available in our Publication Policy. We also request notification when publications using our results are accepted or presented.

Yes, raw simulation output is available for download through our data request system:

1. Use the "Request Output Data" card to access the data request form
2. Enter your run ID and select desired data format (CDF, raw, etc.)
3. Specify the variables and time ranges you need
4. Submit your request for processing

Important: Large datasets may be provided via secure download links rather than direct download. Data availability varies by model, and some formats may require additional processing time.