The estimation results based on these equations show that the rain echo power may deviate from its normal value by a factor of -3 to +6 db depending on the radar height, antenna elevation, wave length, beam width, surface reflectivity and roughness.

• 根据这些公式的计算结果表明；雨区回波功率与不考虑这些因素情况下的值相比较；可有-3至+6分贝的偏差；具体值取决于雷达离地高度、天线仰角、雷达波长、波束宽度、地表反射系数和粗糙度等.