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- Clouds and aerosols in Puerto Rico – a new evaluation
Clouds and aerosols in Puerto Rico – a new evaluation
Auteur :
Allan
J. D.,
Baumgardner
D.,
Raga
G. B.,
... [et al. ]
Date de publication : 05/03/2008
Type : Article
Thème : Atmosphère
Couverture :
Porto Rico
URL Article :
http://www.atmos-chem-phys.net/8/1293/2008/acp-8-1293-2008.pdfURL Source :
http://www.atmos-chem-phys.net/ 
Télécharger le document :
(1,05 MB) Clouds and aerosols in Puerto Rico – a new evaluation.pdfRésumé/Sommaire :
The influence of aerosols, both natural and anthropogenic, remains a major area of uncertainty when predicting the properties and behaviour of clouds and their influence on climate. In an attempt to better understand warm cloud formation in a tropical marine environment, a period of intensive measurements took place in December 2004 in Puerto Rico, using some of the latest developments in online instrumentation such as aerosol mass spectrometers, cloud condensation nuclei counters and a hygroscopicity tandem differential mobility analyser. Simultaneous online measurements of aerosol size distributions, composition, hygroscopicity and optical properties were made near the lighthouse of Cape San Juan in the north-eastern corner of the island and at the top of East Peak mountain (1040m a.s.l.), the two sites separated by 17 km. Additional measurements of the cloud droplet residual and interstitial aerosol properties were made at the mountain site, accompanied by measurements of cloud droplet size distributions, liquid water content and the chemical composition of cloud and rain water samples.
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