Construction and first atmospheric observations of a high spectral resolution lidar system in Argentina in the frame of a trinational Japanese - Argentinean - Chilean collaboration

PABLO ROBERTO RISTORI; YOSHITAKA JIN; SEBASTÍAN PAPANDREA; AKIRA MIZUNO; TOMOAKI NISHIZAWA; LIDIA ANA OTERO; EDUARDO QUEL; NOBUO SUGIMOTO

New Delhi

Simposio; 10th SPIE Asia-Pacific Remote Sensing Symposium. SPIE 2016; 2016

Recentvolcanic eruptions in Argentina and Chile, especially the Chaitén (May 2nd,2008), Puyehue Cordón de Caulle (June 4th, 2011) and Calbuco (April 22nd, 2015)eruptions combined to Patagonian dust transport and seasonal biomass burningperiods place Argentina as a site of interest for aerosol studies. The lidardivision and the National Weather Service have lidars and other ground baseinstrumentation to monitor aerosols at most of the international airports ofthe Patagonian Region. This instrumentation was financed by the special projectof the Ministry of the Defense Nº31554/11. A science and technology researchpartnership between Argentina, Japan and Chile for sustainable development inthe region (SATREPS) reinforced this project improving the instrumentation,expanding the network to Chile and the northern regions of Argentina, andimproving the know-how of the region in state of the art remote sensingtechnology. Fornighttime observations Raman channels will measure the very well-known nitrogenvertical profile. This concentration modulated by the two way beam transmissionis proportional to the weak range-corrected Raman signal. So this kind ofsystem can provide independent extinction information. Raman channels are notsuitable for daytime observations when sunlight induces important noise tothose channels. For those cases high spectral resolution lidar (HSRL) are moreconvenient. Due to theimportance of obtaining both scattering and extinction profiles the NationalInstitute for Environmental Studies (NIES) which are members of the SATREPSproject proposed to co-develop HRSL?s based on their expertise on this field. The lidars of this network without HSRcapabilities will retrieve the necessary aerosol information from the sunphotometer integrated to AERONET monitoring network and adjoin models. Theseinstruments are part of the measuring instrumentation acquired for this project.