Diurnal Atmospheric Extinction Over Oukaïmeden Observatory using IRIS Database: 1989 1997. Comparison With The Other IRIS Sites
Abstract
In this work, we use data of nine years (1989 to 1997) at allIRIS sites (Culgoora, Kumbel, Oukaïmeden, Izaña, La Silla andStanford, devoted to the study of the solar velocityoscillation) to study of diurnal atmospheric extinctioncoefficient behaviour at Oukaïmeden observatory and to compareit to the others. By this study, we can conclude that the meanextinction coefficient at Oukaimeden is around 0.120 magairmass-1. Besides, we show that the daily extinctioncoefficient varies under the influence of the seasonal effect.By the comparison of Oukaïmeden to the other sites, we showedthat Oukaïmeden has a good photometric sky quality andconstitutes a potential site for astronomical observations inthe north hemisphere.
- Publication:
-
Experimental Astronomy
- Pub Date:
- June 2002
- DOI:
- 10.1023/A:1025535615069
- Bibcode:
- 2002ExA....13..159S
- Keywords:
-
- extinction coefficient;
- diurnal photometry;
- sitetesting