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The scale of dBZ values can be seen along the bottom of the image. dBZ is a logarithmic dimensionless technical unit used in radar.It is mostly used in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]
The frequency selection of weather radar is a performance compromise between precipitation reflectivity and attenuation due to atmospheric water vapor. Some weather radars uses doppler shift to measure wind speeds and dual-polarization for identification of types of precipitations. [3] [4] Weather radar; Wind profilers; Millimetre cloud radar ...
A weather satellite or meteorological satellite is a type of Earth observation satellite that is primarily used to monitor the weather and climate of the Earth. Satellites are mainly of two types: polar orbiting (covering the entire Earth asynchronously) or geostationary (hovering over the same spot on the equator ).
The weather service said "widespread upslope snowfall" is expected across the northern Rockies and into the High Plains Tuesday before a jet stream takes the storm eastward into eastern Oklahoma ...
The weather service is forecasting the D.C. area to see anywhere from 3 to 6 inches of snow through Wednesday evening, with Baltimore expecting between 3 to 5 inches of snow in the same time frame.
A major part of modern weather forecasting is the severe weather alerts and advisories that the national weather services issue in the case that severe or hazardous weather is expected. This is done to protect life and property. [ 92 ]
The National Weather Service said temperatures in the city of Bismarck reached negative 35 degrees this week, breaking a 150 year-old record. Record low temperatures were also recorded in ...
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