Burning Index (BI) is a number used by the National Oceanic and Atmospheric Administration (NOAA) to describe the potential amount of effort needed to contain a single fire in a particular fuel type within a rating area. The National Fire Danger Rating System (NFDRS) uses a modified version of Bryam's equation for flame length - based on the Spread Component (SC) and the available energy (ERC) - to calculate flame length from which the Burning Index is computed.
网络释义
1、火险指数
burning index meter 火险指数计数器 burning index 火险指数<根据风、温度、相对湿度以及离最近一次下雨的天数等因素而确定的森林火灾相对危险性的数值 burning intensity 燃烧强度...