Abstract: Natural gas is a kind of indispensable energy for economy development.To ensure the balance of demand and supply of nature gas at a certain cost,it's necessary to introduce early-warning system of nature gas.How to use hierarchy analysis to dispose early-warning problem of nature gas is discussed.That means,both total and short-term indexes with hierarchy methods are analyzed respectively,and then the total index is used to revise the short-term one,providing early-warning to system.

Key words: natural gas, early warning, hierarchy analysis, correction

摘要： 天然气是经济发展不可获缺的能源之一。为了保证在一定成本下的天然气供求平衡,引入天然气预警系统是有必要的。探讨了利用带层次结构分析的方法处理天然气预警问题,即分别对总体和短期指标进行层次结构分析,再利用总体指标修正短期指标对系统进行预警。

关键词: 天然气, 预警, 层次结构分析, 修正