EPJ Web of Conferences (Jan 2018)

Two-year operation of the lidar1200: from fine-scale tropospheric structures to lower stratospheric water vapor detection

  • Vérèmes Hélène,
  • Payen Guillaume,
  • Keckhut Philippe,
  • Duflot Valentin,
  • Baray Jean-Luc,
  • Cammas Jean-Pierre,
  • de Bellevue Jimmy Leclair,
  • Posny Françoise,
  • Evan Stéphanie,
  • Metzger Jean-Marc,
  • Marquestaut Nicolas,
  • Gabarrot Franck,
  • Meier Susanne,
  • Vömel Holger,
  • Dirksen Ruud

DOI
https://doi.org/10.1051/epjconf/201817605015
Journal volume & issue
Vol. 176
p. 05015

Abstract

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The 2-year lidar water vapor database (November 2013 - October 2015) of the Maïdo Observatory (Reunion Island / 21°S,55.5°E) is now processed. The performances of the lidar in providing accurate vertical structures are shown to be good. The ability to measure quantities of a few ppmv in the lower stratosphere is demonstrated (based on Cryogenic Frost point Hygrometer sonde/lidar profiles comparisons) for a 48-hour integration time period, up to 22 km (with a vertical resolution of 1.3 km).