The microwave spectrum of water vapor molecule is outlined. The feasibility and characteristics of remote sensing of atmospheric water vapor profiles by use of 1.348 cm absorption band are discussed.

• 本文概要地介绍了水汽分子的微波吸收特征；计算了各种地表条件下地-气系统的微波波谱；讨论了利用水汽1.；348厘米吸收带的微波辐射遥感大气水汽分布的可能性及其特点。