The Cycle of Rain - HowStuffWorks
Liquid particles fall in the form of rain, while frozen particles fall as snow. If the rain freezes as it falls, it becomes freezing rain. In some cases, rain ascends to higher, chilly altitudes by an updraft; the particles freeze, then return to Earth in the form of a hailstone.
Precipitation and the Water Cycle | U.S. Geological Survey - USGS.gov
2019年9月8日 · Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. Precipitation is the main way atmospheric water returns to the surface of the Earth. Most precipitation falls as rain.
Precipitation - Education | National Geographic Society
2023年10月19日 · Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the earth. If a cloud is colder, like it would be at higher altitudes, the water droplets may freeze to form ice.
The Water Cycle | Precipitation Education
Precipitation is a vital component of how water moves through Earth’s water cycle, connecting the ocean, land, and atmosphere. Knowing where it rains, how much it rains and the character of the falling rain, snow or hail allows scientists to better understand precipitation’s impact on streams, rivers, surface runoff and groundwater.
Chapter 7: Precipitation Processes
Which rain formation process produces most of the worlds precipitation? What type of cloud does this process occur in? What factors determine how large a cloud droplet can grow through collision-coalescence?
7.4.3: Precipitation Process - Geosciences LibreTexts
2024年5月24日 · Rain is precipitation in liquid form. Snow is precipitation in solid form as (typically) a hexagonal crystal shape. Size and shape of the crystal is dependent on moisture content and temperature of the air. Recall that in the middle and high latitudes rain begins as …
What Makes It Rain? | NOAA SciJinks – All About Weather
2024年11月25日 · Freezing rain occurs when the conditions are just "right." Falling snow encounters, first a layer of warmer air, which melts the snowflakes, and then, just above the surface of Earth, a very cold layer, which makes the liquid water “super-cooled,” ready to freeze up at the slightest hint of encouragement.
Precipitation - National Oceanic and Atmospheric Administration
2024年5月20日 · There are two processes for the cloud water, or ice, to grow large enough to fall as precipitation. One process is called the collision and coalescence, or warm rain process, where cloud droplets of varying size, with their different fall speeds, collide and stick together (coalesce), forming larger drops.
Rain and Precipitation | U.S. Geological Survey - USGS.gov
2019年7月6日 · Rain and snow are key elements in the Earth's water cycle, which is vital to all life on Earth. Rainfall is the main way that the water in the skies comes down to Earth, where it fills our lakes and rivers, recharges the underground aquifers, and …
Climate - Rainfall, Snowfall, Evaporation | Britannica
2024年11月22日 · Climate - Rainfall, Snowfall, Evaporation: Precipitation is one of the three main processes (evaporation, condensation, and precipitation) that constitute the hydrologic cycle, the continual exchange of water between the atmosphere and Earth’s surface.