Charge distribution on the atmospheric aerosol over the North Atlantic and the Indian Ocean |
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| Authors: | J C H van der Hage T F de Bruin |
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| Institution: | (1) Instituut voor Meteorologie en Fysische Oceanografie, Rijksuniversiteit Utrecht, Princetonplein 5, 3584 CC Utrecht, The Netherlands |
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| Abstract: | The distribution of electric charge on the marine aerosol was determined near the sea surface of the Indian Ocean and the North Atlantic during the final stage of the Snellius II-expedition. Mean values for small ion concentrationsn
+=455 cm–3 andn
–=340 cm–3 were found over the Atlantic, whilen
+=310 andn
–=250 cm–3 were the mean values over the Indian Ocean. The ration
+/n– increased from 1.2 to 2.0 with decreasing wind velocity. At wind velocities below 5 m/s 75% of the net space charge near the ocean surface was found to be carried by small ions. |
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| Keywords: | Aerosol sea spray small ion |
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