The water cycle is dynamic it describes the continuous movement of water on, above and below the surface of the Earth and the transitions from one state to another. Nearly two-thirds of this fresh water is stored in the polar ice caps, snow packs, and glaciers, making it inaccessible for long periods of time. How much fresh water exists and where it is stored affects us all. However, only a small portion of Earth's water is accessible for our needs. Looking at our Earth from space, with its vast and deep ocean, it appears as though there is an abundance of water for our use. Water is the fundamental ingredient for life on Earth. These measurements are important to understanding the availability and distribution of Earth’s water – vital to life and vulnerable to the impacts of climate change on a growing world population. Sensors on a suite of NASA satellites observe and measure water on land, in the ocean and in the atmosphere. This animation uses Earth science data from a variety of sensors on NASA Earth observing satellites as well as cartoons to describe Earth’s water cycle and the continuous movement of water on, above and below the surface of the Earth. However, only a small portion of Earth’s water is accessible for our needs.
0 Comments
Leave a Reply. |