In South Georgia we have 30 sondes, 30 balloons, and ~1000m3 of He
Approximately 15 – 18 days of science (assuming ships run to time)
A sonde will be released at 12:00 UTC everyday irrespective of conditions
12 – 15 sondes for intensive observation periods (IOPs)
Halo Photonics 1.5μm Doppler, Dual Polarizing Lidar
This lidar is a doppler system fitted with a depolarization channel. The system is sensitive to aerosol backscatter only and retrieves the backscatter coefficient from both the cross and coplanar returns. The doppler utility allows the radial velocity to be determined and hence windspeed and wind direction profiles can be determined if the azimuth and elivation of the beam is varied. When pointing vertically the backscatter and radial velocities are measures at approxivately 1-2Hz.
On South Georgia will be