NRLMSIS Update

Note: the ROR option of requesting a NRLMSIS model run allows users to request a longer time period compared to the Instant-Run (IR) option of the same model. Users, who are interested in running the model for a longer duration, should use the ROR option instead.

December 2024

The NRLMSIS 2.1 is now available to the community through the CCMC instance-Run (IR) and the Runs-on-Request (ROR) service.

NRLMSIS 2.1 includes an empirical model of nitric oxide (NO) number density at altitudes from ∼73 km to the exobase, as a function of altitude, latitude, day of year, solar zenith angle, solar activity, and geomagnetic activity. This upgrade to NRLMSIS 2.0 consists solely of the addition of NO. MSIS 2.1 assimilates observations from six space-based instruments: UARS/HALOE, SNOE, Envisat/MIPAS, ACE/FTS, Odin/SMR, and AIM/SOFIE.

Reference: Emmert, J. T., Jones, M. Jr., Siskind, D. E., Drob, D. P., Picone, J. M., Stevens, M. H., et al. (2022). NRLMSIS 2.1: An empirical model of nitric oxide incorporated into MSIS. Journal of Geophysical Research: Space Physics, 127, e2022JA030896

August 2023

As of August 16, 2023, the NRLMSIS 2.0 model is available to the community through the CCMC Runs-On-Request (ROR) service. Users can select to run either NRLMSIS 00 or NRLMSIS 2.0 using the same ROR submission interface.

July 2023

As of July 17, 2023, the NRLMSIS-00 model is available to the community through the CCMC Runs-On-Request (ROR) service. The ROR option of requesting a NRLMSIS-00 model run allows users to request a longer time period compared to the Instant-Run (IR) option of the same model. Users, who are interested in running the model for a longer duration, should use the ROR option instead.