| | Puzzling height of polar clouds revealed |
 | | To confirm these geographic differences, measurements were taken at British Antarctic Survey's Rothera Research Station, 1500 miles from the South Pole, at the same latitude as measurements made in the northern hemisphere (68°). |
 | | The lidar is now operational at British Antarctic Survey's Rothera Research Station. |
 | | Using a laser radar (LIDAR) to bounce light pulses off the clouds and measure their distance from earth, the researchers demonstrated that even though the clouds were slightly lower at Rothera than at the South Pole, they were considerably higher than at similar latitudes in the northern hemisphere. |
| www.eurekalert.org /pub_releases/2004-01/bas-pho012604.php (715 words) |