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ALVICE
 
 

McMurdo station
McMurdo is located on the Antarctic continent at 77.85 ºS, 166.67 ºE.

McMurdo station

System description
In 2004, a NdYAG laser was installed together with a new optical box. The laser has the following properties:

- 190 mJ/pulse at 532 nm 
- 90 mJ/pulse at 1064 nm

The acquisition system has a Schmidt Cassegrain telescope with a primary mirror diameter of 14? (35.6 cm). The following wavelengths are monitored:
- high polarized 532 nm
- depolarized 532 nm
- low polarized 532 nm
- infrared 1064 nm
- Raman 608 nm
- tropospheric 532 nm
The detectors are photomultipliers (Hamamatsu) for visible wavelengths and Avalanche photodiodes for the infrared region.
Data acquisition is performed by photon counting boards.

Measurements
Below are two time series of backscatter ratios (at 532 nm) obtained at McMurdo in the years 2007 and 2008. In 2007, there were 31 observations days and in 2008 there were 26 days with observations. Note that the large gap between days 206 and 218 in 2008 was because of a storm.


2007 measurements showing backscatter ratio (BR) at 532 nm.

2008 measurements showing backscatter ratio (BR) at 532 nm.

McMurdo team
M. Snels (PI), L. Di Liberto F. Cairo, M. Viterbini and F . Angelini at the Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR).
G. Di Donfrancesco, F. Colao at the Italian National Agency for New Technologies, Energy and the Environment.

Acknowledgements
* PNRA for financial support
* Terry Deshler and his group for his hospitality and collaboration
* NSF for logistics and technical support on the site
* All NSF research associates; Laura Tudor, Bec Batchelor, Jason Bryenton and Brian Nelson.

 
 
 
 
         
                                                               

19 September 2016