<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gordon, M.</style></author><author><style face="normal" font="default" size="100%">Staebler, R. M.</style></author><author><style face="normal" font="default" size="100%">Liggio, J.</style></author><author><style face="normal" font="default" size="100%">Vlasenko, A.</style></author><author><style face="normal" font="default" size="100%">Li, S. -M.</style></author><author><style face="normal" font="default" size="100%">Hayden, K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aerosol flux measurements above a mixed forest at Borden, Ontario</style></title><secondary-title><style face="normal" font="default" size="100%">ATMOSPHERIC CHEMISTRY AND PHYSICS</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><number><style face="normal" font="default" size="100%">14</style></number><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">6773-6786</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Aerosol fluxes were measured above a mixed forest by Eddy Covariance (EC) with a Fast Mobility Particle Sizer (FMPS) at the Borden Forest Research Station in Ontario, Canada between 13 July and 12 August 2009. Chemically speciated flux measurements were made at a height of 29m at the same location between 19 July and 2 August, 2006 using a Quadrupole Aerosol Mass Spectrometer (Q-AMS). The Q-AMS measured an average sulphate deposition velocity of 0.3mms(-1) and an average nitrate deposition velocity of 4.8mms(-1). The FMPS, mounted at a height of 33m (approximately 10m above the canopy top) and housed in a temperature controlled enclosure, measured size-resolved particle concentrations from 3 to 410 nm diameter at a rate of 1 Hz. For the size range 18 &amp;lt; D &amp;lt; 452 nm, 60% of fluxes were upward. The exchange velocity was between -0.5 and 2.0 mms(-1), with median values near 0.5 mms(-1) for all sizes between 22 and 310 nm. The size distribution of the apparent production rate of particles at 33m peaked at a diameter of 75 nm. Results indicate a decoupling of the above and below canopy spaces, whereby particles are stored in the canopy space at night, and are then diluted with cleaner air above during the day.</style></abstract></record></records></xml>