In order to improve the understanding of the atmosphere in general and of the radiation ßeld in particular, routine direct radiation measurements represent a powerful tool to monitor changes of the atmospheric transparency, ibr example due to an increase of the aerosol load. All-weather automatic measuring devices are needed for that purpose. The RASTA Systems, consisting of a sun-trackef, an absolute radiometer and up to three sunphotometers, have been deveioped in the recent years within ajoint venture between a research institute, two private companies and a governmental institution. A complete description of the Systems and preliminary results are presented, especially conceming the effects of the aerosol cloud injected in the stratosphere by the Pinatubo volcanic eruption in 1991.
| Autoren | Heimo A, Thévoz Ch, Renaud Ph, Brusa RW, BRUSAG, Sekler J, CSEM, Fröhlich C, PMOD/WRC |
|---|---|
| Ausgabe | 183 |
| Jahr | 1995 |
| Typ | Berichte & Bulletins |
Mess- & Prognosesysteme