Thermospheric global average density trends, 1967–2007, derived from orbits of 5000 near‐Earth objects

@inproceedings{Emmert2008ThermosphericGA,
  title={Thermospheric global average density trends, 1967–2007, derived from orbits of 5000 near‐Earth objects},
  author={J T Emmert and J. M. Picone and Robert R. Meier},
  year={2008}
}
[1] We use orbit data on ∼5000 near-Earth space objects to investigate long-term trends in thermospheric total mass density, which has been predicted to decrease with time due to increasing CO2 concentrations. We refine and extend to 2007 previous density trend estimates, and investigate solar cycle-dependent bias in empirical density models previously used to filter out solar irradiance effects. We find that the bias is caused in part by the solar cycle dependence of the long-term trends, and… CONTINUE READING

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