Caption: Animated model of the path of the jet stream in the northern hemisphere. The jet stream is a fast-moving belt of eastward-moving winds that form at the tropopause at the boundary between cold polar air and warmer temperate air. Wind speed is colour-coded in this model, with red being the fastest, through orange, yellow and cyan to dark blue (slowest). The jet stream typically exhibits large-scale meanders, called Rossby waves. The position of the jet stream plays a major role in determining the weather beneath it. The fast-moving air encourages the formation of low pressure beneath it, and regions below the jet stream typically see frequent storms and other low pressure weather phenomena. This animation uses weather and climate observations from NASA's MERRA dataset to model 30 days of the jet stream's whirling journey over North America.

Release details: Model release not required. Property release not required.

Keywords: animated, animation, atmosphere, atmospheric, climate, climatic, climatological, climatology, diagram, earth, earth observation, earth science, earth's, environment, environmental, geographical, geography, global, globe, jet, jet stream, jet streams, jetstream, merra dataset, meteorological, meteorology, model, nasa, north america, north american, polar cell, sciences, speed, tropopause, visualisation, visualization, weather, weather system, weather systems, westerlies, westerly winds, wind, wind patterns, winds, world, worldwide

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Polar jet stream

K003/3830 Rights Managed

Downloadable master

Duration: 00:00:32

Frame size: 1280x720

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 466.9M


Capture format: QuickTime Animation

Codec: Photo - JPEG

Please contact Science Photo Library if you require the original, or other formats.


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