Who are the people interested in the HYDROSPHERE?

The people who are the most interested in the hydrosphere, how it works and how it changes, are those whose lives depend on it. People who live close to a body of water, whether it is a river, stream, sea, or ocean, need to know what to expect of the hydrosphere because it can affect their homes and their families. Also, fishermen whose livelihood, and therefore, their families well being, depend on the hydrosphere are interested in understanding how it works and how it changes.
fishing
(Commander John Bortniak, NOAA Corps)
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river
(USDA Agricultural Research Service/Brian Prechtel)
Scientists, engineers, and farmers are also interested in the hydrosphere. Farmers are interested in the hydrosphere to the extent that it contributes to the irrigation of their crops.

Engineers in various disciplines are interested in understanding the hydrosphere so that they can help society use this valuable resource for power, for irrigation of farmland, to design ways of living with the hydrosphere through the building of bridges and tunnels, and to develop the food resources of the ocean.
dam
(U.S. DoI/Bureau of Reclamation - Lower Colorado Region)
irrigation
(USDA/Tim McCabe)
Scientists are interested in the hydrosphere for a wide variety of reasons. Physical oceanographers are interested in how the physical components of the ocean, the temperature, currents, and chemical composition contribute to how the ocean works. Biological oceanographers are interested in the life in the ocean. Some are interested in the variety of life ranging from the life that has evolved at the deep ocean vents where there is no light, others are interested in the schools of fish near the surface, and still others are interested studying the plant and animal life to determine economical way of using these resources to feed the ever-growing population of the Earth. Other scientists who are interested in the hydrosphere are climatologists and Earth system scientists. These scientists are interested in understanding the role that the hydrosphere plays in shaping the climate of the Earth and affecting the environments in which all of us live.
undersea vent
Large version
(NOAA OAR - NURP/P. Rona)

school of fish
(NOAA OAR/National Undersea Research Program)
Large version