Observations of UV radiation and total ozone column using ground based instruments in Río Gallegos, Argentina (51º 36' S, 69º 19' W)

JACOBO SALVADOR; ELIAN A. WOLFRAM; FACUNDO ORTE; RAUL D'ELIA; DANIELA BULNES; EDUARDO J. QUEL

AIP CONFERENCE PROCEEDINGS

AIP CONFERENCE PROCEEDINGS

Lugar: New York; Año: 2013 vol. 1531 p. 364 - 367

0094-243X

As a part of environmental studies in the southern hemisphere, the CEILAP Lidar Division with the financial support of JICA (Japan International Cooperation Agency) and the collaboration of IPSL France, mounted a ground based remote sensing site at Río Gallegos city (51º 36?S, 69º 19?W), at southern part of South America for the measurements of stratospheric ozone, with lidar remote sensing techniques and passive sensors to measure solar UV irradiance. The Patagonian region is characterized by high cloud cover during day changing strongly the distribution of UV radiation that reaches the ground surface. During the spring season some overpasses of ozone hole are masked by cloud cover avoiding the increase in UVB radiation. Solar UV radiation measured with multiband filter radiometer GUV-541 and Biometer manufactured by Biospherial Inc. San Diego and the Yankee Environmental Systems (YES) companies respectively. We present nine study days in the period 2007-2011 where total ozone column was below 250 DU focusing the impact that cloud cover had on the temporal evolution of these events.