the hydrosphere
noun [ S ] environment specialized uk/ˈhaɪ.drəʊ.sfɪər/ us/ˈhaɪ.droʊ.sfɪr/
水圈（地球表面上或附近的所有的水、冰、水蒸气的总和，如海洋、冰川、云层以及地上或地下水）
all of the water, ice, and water vapor at or near the surface of the earth, such as the seas, clouds, and the water in and under the ground