21/30388949 DC

This standard 21/30388949 DC BS ISO 14222. Space environment (natural and artificial). Earth upper atmosphere is classified in these ICS categories:

• 49.140 Space systems and operations

This document specifies the structure and properties of the Earth’s atmosphere from ground-level upward. It provides internationally-accepted empirical models that specify the details of the atmosphere. It also refers to widely-accepted physical models providing insight into the physical and chemical processes driving the response of the atmosphere. Appendices and extensive citations provide a detailed description the details of those models. The purpose is to create a standard method for specifying Earth atmosphere properties (density, temperature, etc.) at all altitudes from ground-level upward, including the low Earth orbit regime now widely-used for space systems and space operations.