What is Clear?
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.
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The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A very cold high pressure that originates over the Arctic Ocean.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
A type of cloud consisting mostly of small particles such as ice particles.
Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.