MODEL RELEASED. Atmospheric laser radar. Scientist Dan Walsh & an ultraviolet laser radar (lidar) that measures atmospheric aerosols,ozone levels & temperatures. The scientist is recording the oper- ating parameters of the lidar,which projects 2 vertical beams at different wavelengths. Radiation scattered back is analysed to determine the strat- osphere's composition at altitudes of 15-75 kilo- metres (km). Stratospheric aerosols come from vol- canic eruptions,& are mainly comprised of sulph- uric acid & water. Ozone gas,mainly found above 19km,blocks harmful ultraviolet rays from the Sun. Photographed at Mauna Loa Observatory on Hawaii | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fraser, Simon / Mauna Loa Observatory |
Taille de l’image : | 4014 px × 4949 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |