Observations of vertically thick polar stratospheric clouds and record low temperature in the Arctic vortex

@inproceedings{KiviObservationsOV,
  title={Observations of vertically thick polar stratospheric clouds and record low temperature in the Arctic vortex},
  author={Rigel Kivi and Esko Kyr{\"o} and Andreas D{\"o}rnbrack and Thomas P. Birner}
}
On 12 and 13 January 2001 backscatter sondes launched at Sodankylä, Finland (67 N, 27 E) detected an extraordinarily thick polar stratospheric cloud layer of more than 8 km vertical extent. On these days the polar vortex passed over northern Scandinavia. This provided synopticscale low stratospheric temperatures leading to the formation of both liquid and solid phase particles. Two days later, on 15 January 2001, a regular radiosonde measured record low temperature of 176.7 K at an altitude of… CONTINUE READING

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