Erste Messungen mit dem ALOMAR Rayleigh/Mie/Raman-Lidar: Wasserdampf in der Troposphaere, Wolken in der polaren Stratosphaere und nachtleuchtende Wolken in der Mesosphaere

In June 1994 the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR) started operation with first measurements by the ALOMAR Rayleigh/Mie/Raman-Lidar (R/M/R-Lidar). The observatory, located on the Andoeya Rocket Range (69 N, 16 E) in northern-Norway, was established as an international research facility comprising active and passive remote sensing instruments measuring atmospheric parameters. The optical design of the R/M/R lidar is described. Early results include the first ever simultaneous and common-volume detection of noctilucent clouds by the lidar and polar mesosphere summer echoes by a MST radar, giving observational evidence for a common origin of these upper atmosphere phenomena. During winter 1994/95 polar stratospheric clouds (PSC) were present on 16 days during 17 days of available observations in January. From two-wavelength measurements we estimate the background aerosol to have sizes of about 10 nm to 70 nm and the PSCs between 60 nm and 600 nm. Lidar water vapour profiles showed excellent agreement with simultaneous in-situ radiosonde soundings throughout the troposphere. (orig.)SIGLEAvailable from FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman