On the use cirrus clouds for ground‐based elastic lidar calibration
- Navas-Guzmán, F.
- Guerrero-Rascado, J.L.
- Bravo-Aranda, J.A.
- Alados-Arboledas, L.
ISSN: 2171-8814
Datum der Publikation: 2011
Titel der Ausgabe: V Workshop LIDAR measur. in Latinamerica
Ausgabe: 44
Nummer: 1
Seiten: 49-53
Art: Artikel
Andere Publikationen in: Óptica pura y aplicada
Zusammenfassung
A key parameter to retrieve backscatter coefficient from elastic lidar signals is the backscatter coefficient at a reference height. Traditionally, such a calibration height must fulfil the criterion that at this altitude the particle backscatter coefficient is negligible compared to the molecular backscatter value. Such clean‐air conditions are normally given in the upper troposphere. This procedure cannot be applied for those channels that present low signal‐to‐noise ratio (SNR) at the reference height. To solve this problem an alternative calibration method using cirrus clouds is presented.