本文件规定了地球大气层从地面向上的结构和性质。它提供了国际公认的经验模型，详细说明了大气的细节。它还指的是被广泛接受的物理模型，提供对驱动大气响应的物理和化学过程的洞察。

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.