Mountain polar stratospheric cloud measurements by ground based FTIR solar absorption spectroscopy

Michael Höpfner, Thomas Blumenstock, Frank Hase, Alexandra Zimmermann, Harald Flentje, Stefan Fueglistaler

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

An analysis of mountain polar stratospheric cloud observations by solar absorption FTIR from Kiruna/Sweden was performed and compared with co-located airborne lidar measurements, The infrared cloud spectral signature and optical depth indicated water ice particles compatible with the high backscatter and depolarization ratio of the lidar signal. Retrieval of mean particle properties from the FTIR spectrum depend on the assumed width of the particle size distribution and range from 2.0 to 1.1 μum radius anti from 1.9 to 5.1 cm-3 number density. The volume density is well determined with 63.8-60.2 μum3/cm3 equivalent to about 2.5 ppmv of condensed water at 20 hPa. Simulations of lidar backscatter ratio based on these results are consistent with the lidar observations.

Original languageEnglish (US)
Pages (from-to)2189-2192
Number of pages4
JournalGeophysical Research Letters
Volume28
Issue number11
DOIs
StatePublished - Jun 1 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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