Wednesday, 30 May 2012
Rooftop Ballroom (Omni Parker House)
Flux measurements from four flux towers, installed in agricultural fields and urban area located near a river which has recently gone through dam expansion and construction, have been observed since Oct., 2010. This study has been conducted in Daegu, South Korea in order to assess the impact of dams on micrometeorology and energy balance of the surrounding area. Each of the towers is installed in an agricultural field near a paddy field, an herb garden, an area near greenhouses, or a rooftop of a building. Analysis of net radiation, sensible heat flux, latent heat flux, and soil heat flux which were calculated using eddy covariance method using measurements from 3-D sonic anemometers, gas analyzers, and net radiometers along with meteorological factors are done. The analysis includes comparison of values according to their 1) location (agricultural vs. urban area), 2) time (pre- vs. post- construction of a dam), and 3) wind direction (toward vs. from river).
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