environ. |
troposphere The lowest of the concentric layers of the atmosphere, occurring between the Earth's surface and the tropopause. It is the zone where atmospheric turbulence is at its greatest and where the bulk of the Earth's weather is generated. It contains almost all the water vapour and aerosols and three-quarters of the total gaseous mass of the atmosphere. Throughout the troposphere temperature decreases with height at a mean rate of 6.5°C/km and the whole zone is capped by either an inversion of temperature or an isothermal layer at the tropopause (大气层的最低同心层,发生在地球表面和对流层顶之间。它是大气湍流最大和产生大部分的地球气候的区域,它包含了几乎所有的水蒸汽和气溶胶,占了大气质量的四分之三。在整个对流层,温度随着高度以6.5°C/km的均值率降低。整个区域被一个逆温层或一个对流层顶中的等温层所密闭。) |