NRLMSISE‐00 empirical model of the atmosphere: Statistical comparisons and scientific issues
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Open Access
- 24 December 2002
- journal article
- ionosphere and-upper-atmosphere
- Published by American Geophysical Union (AGU) in Journal of Geophysical Research
- Vol. 107 (A12) , SIA 15-1-SIA 15-16
- https://doi.org/10.1029/2002ja009430
Abstract
The new NRLMSISE‐00 empirical atmospheric model extends from the ground to the exobase and is a major upgrade of the MSISE‐90 model in the thermosphere. The new model and the associated NRLMSIS database now include the following data: (1) total mass density from satellite accelerometers and from orbit determination (including the Jacchia and Barlier data sets), (2) temperature from incoherent scatter radar covering 1981–1997, and (3) molecular oxygen number density, [O2], from solar ultraviolet occultation aboard the Solar Maximum Mission. A new component, “anomalous oxygen,” allows for appreciable O+ and hot atomic oxygen contributions to the total mass density at high altitudes and applies primarily to drag estimation above 500 km. Extensive tables compare our entire database to the NRLMSISE‐00, MSISE‐90, and Jacchia‐70 models for different altitude bands and levels of geomagnetic activity. We also explore scientific issues related to the new data sets in the NRLMSIS database. Especially noteworthy is the solar activity dependence of the Jacchia data, with which we study a large O+ contribution to the total mass density under the combination of summer, low solar activity, high latitude, and high altitude. Under these conditions, except at very low solar activity, the Jacchia data and the Jacchia‐70 model indeed show a significantly higher total mass density than does MSISE‐90. However, under the corresponding winter conditions, the MSIS‐class models represent a noticeable improvement relative to Jacchia‐70 over a wide range of F10.7. Considering the two regimes together, NRLMSISE‐00 achieves an improvement over both MSISE‐90 and Jacchia‐70 by incorporating advantages of each.Keywords
This publication has 26 references indexed in Scilit:
- Similarity transformation‐based analysis of atmospheric models, data, and inverse remote sensing algorithmsJournal of Geophysical Research, 2001
- Variability of a composite chromospheric irradiance index during the 11‐year activity cycle and over longer time periodsJournal of Geophysical Research, 2001
- The upper atmosphere during June 5–11, 1991Journal of Geophysical Research, 2000
- Hot oxygen profiles for incoherent scatter radar analysis of ion energy balanceJournal of Geophysical Research, 2000
- A review of the mesosphere inversion layer phenomenonJournal of Geophysical Research: Atmospheres, 2000
- Variations of hot O in the thermosphereGeophysical Research Letters, 1999
- Climatology of neutral exospheric temperature above Millstone HillJournal of Geophysical Research, 1998
- Climatology and variability of the semidiurnal tide in the lower thermosphere over Millstone HillJournal of Geophysical Research, 1998
- Hot oxygen and the ion energy budgetJournal of Geophysical Research, 1997
- Detection of He+ layering in the topside ionosphere over Arecibo during equinox solar minimum conditionsGeophysical Research Letters, 1996