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COSPAR International Reference Atmosphere

CIRA is the COSPAR International Reference Atmosphere. Below you will find links to the outline of tasks for the CIRA project, as well as a sample of the full CIRA document, including chapters 1-6.

CIRA Outline of Tasks

Chapters 1-3

Chapter 4: Solar and Geomagnetic Indicies

Chapter 5: Outstanding issues related to thermospheric measurements and modeling

Chapter 6: A Reference Atmosphere for the Atomic Sodium Layer