Earths water cycle – The cycle of life
Water is the fundamental ingredient for life on Earth. Looking at our Earth from space, with its vast and deep ocean (97% of Earths water), it appears that there is an abundance of water for our use. However, only a small portion (3%)of Earths water is accessible for our needs. How much fresh water exists and where it is stored affects us all. Nearly two thirds of this fresh water is stored in the polarised caps, snow packs and glaciers, making it inaccessible for long periods of time.
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. Sea surface temperature, surface winds and air temperature influence the rate of evaporation of the ocean surface. In the tropics, warm ocean surface temperatures and wind report high rates of evaporation. When the airs temperature is warmer it can hold more water.
While the atmosphere does not store a large quantity of water compared to the Oceans River and lakes, it can transport water quickly, from one place to another. Low line regions of the atmosphere with high moisture and strong winds can form atmospheric rivers to transport water horizontally.
Clouds are formed as water vapor cools and condenses into droplets and ice crystals. Clouds and water vapor act as insulators in the atmosphere. Clouds help shield the Earth from the Sun, and trap heat from below. When cloud particles grow large enough, they may fall out as rain or snow. Under the right conditions, areas of precipitation can grow into large storms, such as hurricanes. As storms grow, they transfer heat vertically into the upper atmosphere. The migration of storms helps to distribute heat between the equator and poles, shaping wind patterns globally. How storms grow and intensify depends on atmospheric moisture, surface temperatures and wind patterns. Precipitation is concentrated in some parts of the world and scarce in others. It can vary substantially from season to season, and year to year.
Watching this descriptive video about Earths water cycle, will help you to understand how extremely important it is to save water wherever and whenever possible. So if you discover a leaking tap or burst pipe in your home or workplace, call the professionals at Oceanside Services today on 07 5520 7100.