Observation of energy fluxes near a river in South Korea

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 a big city located in central 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 couple of paddy fields, an area near greenhouses, and 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 elements are done. The analysis includes comparison of energy fluxes according to their 1) location (agricultural vs. urban area), 2) time (pre- vs. post- construction), and 3) wind direction (toward vs. from river).