NRLMSIS 2.1: An Empirical Model of Nitric Oxide Incorporated Into MSIS
Emmert, John T.; Jones Jr, M.; Siskind, David E.; Drob, D. P.; Picone, J. M.; Stevens, M. H.; Bailey, Scott M.; Bender, Stefan; Bernath, Peter F.; Funke, Bernd; Hervig, Mark E.; Pérot, Kristell
Peer reviewed, Journal article
Published version
Permanent lenke
https://hdl.handle.net/11250/3047125Utgivelsesdato
2022Metadata
Vis full innførselSamlinger
- Institutt for fysikk [2707]
- Publikasjoner fra CRIStin - NTNU [38672]
Originalversjon
Journal of Geophysical Research (JGR): Space Physics. 2022, 127 (10), . 10.1029/2022JA030896Sammendrag
We have developed 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. The model is part of the NRLMSIS® 2.1 empirical model of atmospheric temperature and species densities; 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. We additionally evaluated the new model against independent extant NO data sets. In this paper, we describe the formulation and fitting of the model, examine biases between the data sets and model and among the data sets, compare with another empirical NO model (NOEM), and discuss scientific aspects of our analysis.