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550
6
Norway
6
lidar
6
polar mesospheric cloud
radar
6
Andenes
3
Andoya
3
Eurasia
3
Europe
3
Mie theory
3
Northern Europe
3
Raman spectroscopy
3
Scandinavia
3
Vesteralen
3
atmospheric modeling
3
boundary layer
3
electron density
3
gravity wave
3
mesopause
3
mesosphere
3
polar mesosphere summer echo
3
statistical analysis
3
sublimation
3
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