"The surface called \"surface\" means the lower boundary of the atmosphere. \"Amount\" means mass per unit area. \"Water\" means water in all phases, including frozen i.e. ice and snow. \"Canopy\" means the plant or vegetation canopy. \"Canopy and surface water\" means the sum of water on the ground and on the canopy." . . . "canopy and surface water amount" . "Climate and Forecast (CF)" . . .