大气光学参数包括了影响激光大气传输的多种大气光学特性参数。这些参数在不同地理位置、不同大气条件由各种不同的测量设备获取，经过较长时间的积累，大气光学参数具有信息量大、试验条件多变、格式复杂等特点。提出了一种新的基于XML表达的有序的层次分形数据模型，建立统一的数据标准，提高数据管理和利用效率，并有利于数据长久保存、应用和网络发布。以激光雷达数据为例，分别描述了元数据信息实体、数据格式实体和数据集实体等的数据结构特点。

The atmospheric optical parameters include many atmospheric characteristic parameters which affect the laser propagation in the atmosphere. These parameters obtained in different locations under different conditions have complicated structures and a huge number. A new data model is proposed based on XML which has a good structure. The data exist in standardization XML documents which promote efficiency of data management and data utility, as it can be easily reserved and easily applied to web-based systems.