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http://dx.doi.org/10.14191/Atmos.2019.29.5.537

An Analysis of Radiative Observation Environment for Korea Meteorological Administration (KMA) Solar Radiation Stations based on 3-Dimensional Camera and Digital Elevation Model (DEM)  

Jee, Joon-Bum (Research Center for Atmospheric Environment, Hankuk University of Foreign Studies,)
Zo, Il-Sung (Research Institute for Radiation-Satellite, Gangneung-Wonju National University)
Lee, Kyu-Tae (Research Institute for Radiation-Satellite, Gangneung-Wonju National University)
Jo, Ji-Young (Department of Atmospheric and Environmental Sciences, Gangneung-Wonju National University,)
Publication Information
Atmosphere / v.29, no.5, 2019 , pp. 537-550 More about this Journal
Abstract
To analyze the observation environment of solar radiation stations operated by the Korea Meteorological Administration (KMA), we analyzed the skyline, Sky View Factor (SVF), and solar radiation due to the surrounding topography and artificial structures using a Digital Elevation Model (DEM), 3D camera, and solar radiation model. Solar energy shielding of 25 km around the station was analyzed using 10 m resolution DEM data and the skyline elevation and SVF were analyzed by the surrounding environment using the image captured by the 3D camera. The solar radiation model was used to assess the contribution of the environment to solar radiation. Because the skyline elevation retrieved from the DEM is different from the actual environment, it is compared with the results obtained from the 3D camera. From the skyline and SVF calculations, it was observed that some stations were shielded by the surrounding environment at sunrise and sunset. The topographic effect of 3D camera is therefore more than 20 times higher than that of DEM throughout the year for monthly accumulated solar radiation. Due to relatively low solar radiation in winter, the solar radiation shielding is large in winter. Also, for the annual accumulated solar radiation, the difference of the global solar radiation calculated using the 3D camera was 176.70 MJ (solar radiation with 7 days; suppose daily accumulated solar radiation 26 MJ) on an average and a maximum of 439.90 MJ (solar radiation with 17.5 days).
Keywords
Solar radiation site; observation environment; sky view factor; digital elevation model; 3 dimensional camera;
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Times Cited By KSCI : 7  (Citation Analysis)
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