Sökning: "aerosol precipitation"
Visar resultat 11 - 15 av 19 avhandlingar innehållade orden aerosol precipitation.
11. Acoustic separation and electrostatic sampling of submicron particles suspended in air
Sammanfattning : We investigate experimentally the effects of acoustic forces on submicron aerosol in a channel flow. This technique can potentially overcome some of the limitations of conventional separation systems and provide advanced manipulation capabilities such as sorting according to size or density. LÄS MER
12. Characterization of soot in air and rain over southern Asia
Sammanfattning : Filter-based optical measurements of light absorbing particulate matter at awavelength of about 550 nm, here referred to as soot, in air and rainwaterhave been performed during the period from 1st June 2005 to 31th May 2009at Godavari in Nepal, Sinhagad in India and Hanimaadhoo in The Maldives.A method for determination of water-insoluble light absorbing matter inrainwater has been developed. LÄS MER
13. Detecting changes in climate and atmospheric composition with tracers in Arctic ice caps
Sammanfattning : Changes in climate and atmospheric composition over decades to a hundred thousand years have been studied by extracting records of various tracers from two Arctic ice cores. A seven metre long ice core of superimposed ice was recovered from the Storöya ice cap in north-eastern Svalbard. LÄS MER
14. Experimental studies of ice particle formation with tropospheric relevance
Sammanfattning : In their fourth assessment report, the Intergovernmental Panel on Climate Change points out the influence of particles suspended in air, known as an aerosol, as the main uncertainty in the understanding of the climate system. Aerosols affect climate in a number of ways. LÄS MER
15. Ammonia compounds in the atmosphere
Sammanfattning : Gaseous ammonia and particulate-bound ammonium compounds are found in the troposphere at all places over the globe were measurements have been performed. Gaseous ammonia is unique in the sense it is the only gaseous base present in quantities large enough to mitigate the acidity of condensed water found in the atmosphere. LÄS MER