Dark blue cloudy sky

What is Atmospheric River?

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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Glossary

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...