What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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A very cold high pressure that 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...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...