Analysis of the vertical profiles of humidity from radiosonde soundings launched from Antofagasta

Details Analysis of the vertical profiles of humidity from radiosonde soundings launched from Antofagasta Analysis of the vertical profiles of humidity from radiosonde soundings launched from Antofagasta

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011rmxac..41...99o&link_type=abstract

Astronomical Site Testing Data in Chile (Eds. M. Curé, A. Otárola, J. Marín, & M. Sarazin) Revista Mexicana de Astronomía y Astr

Computer Science

Sound

Atmospheric Effects, Site Testing

Scientific paper

The Atacama Desert region in northern Chile is a host to some of the most recent astronomical observatories, equipped with instrumentation covering several spectral bands of interest, including: microwaves, millimeter, sub-millimeter, mid-infrared, near-infrared and visible. Among others, the region host the Very Large Telescope (VLT) located at Cerro Paranal, the Atacama Large Millimeter Array (ALMA), under construction at the Llano de Chajnantor plateau in the west slope of the Andes Mountains, and it has been selected the region for the future installation of the European Extremely Large Telescope (E-ELT). Because of the role of atmospheric water vapor as a source of absorption of electromagnetic radiation in several of the spectral bands, as well as of phase fluctuations for an interferometer such as ALMA, makes the study of atmospheric water vapor a relevant topic in this region. This work presents an analysis of the vertical profiles of humidity from radiosonde soundings launched from nearby the city of Antofagasta, and looks into the magnitude of a dry-bias in the relative humidity (RH) profiles arising from a change of temperature of the RH sensors, respect to the surrounding ambient due to solar heating.

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