Upper-air balloon-borne observations in Portugal

Details Upper-air balloon-borne observations in Portugal Upper-air balloon-borne observations in Portugal

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.471...57n&link_type=abstract

In: 15th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 28 - 31 May 2001, Biarritz, France. Ed.:

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National Programs, Balloons, Earth Atmosphere

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The Portuguese Meteorological Institute (IM), operates regular and non-regular programmes of upper-air observations using balloons and radiosondes for measuring meteorological variables and atmospheric ozone concentration. The regular programmes consists in daily observations of upper-air pressure, temperature, humidity and wind using balloons and electronic radiosondes, carried out at 3 fixed stations in Portugal, which reach more than 30 km of altitude. IM has also 2 portable systems that are occasionally used for temporary observations during field campaigns, which have been taken several times in different regions of Portugal. The radiosondes used include electrical sensors for the PTU measurements and GPS-module for balloon tracking, which signals are used for wind computation at the ground station. Except for the Azores station, where helium is used, the balloons at all other sites are filled with hydrogen. There are also non-regular programmes that have been carried out weekly for the observation of the vertical profile of ozone up to about 35 km of altitude, using 1200 grams balloons and "Brewer-Mast" ozonesondes.

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