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http://dx.doi.org/10.3741/JKWRA.2022.55.11.979

A study on the selection of evapotranspiration observatory representative location in Chuncheon Dam basin  

Park, Jaegon (Han River Survey Department, Korea Institute of Hydrological Survey)
Kim, Kiyoung (Survey Planning Department, Korea Institute of Hydrological Survey)
Lee, Yongjun (Korea Survey Planning Department, Institute of Hydrological Survey)
Hwag-Bo, Jong Gu (Han River Survey Department, Korea Institute of Hydrological Survey)
Publication Information
Journal of Korea Water Resources Association / v.55, no.11, 2022 , pp. 979-989 More about this Journal
Abstract
In hydrological surveys, observation through representative location is essential due to temporal and spatial limitations and constraints. Regarding the use of hydrological data and the accuracy of the data, there are still insufficient observatories to be used in a specific watershed. In addition, since there is virtually no standard for the location of the current evapotranspiration, this study proposes a method for determining the location of the evapotranspiration. To determining the location of evapotranspiration, a grid is selected in consideration of the operating range of the Flux Tower using the eddy covariance measurement method, which is mainly used to measure evapotranspiration. The grid of representative location was calculated using the factors affecting evapotranspiration and satellite data of evapotranspiration. The grid of representative location was classified as good, fair, and poor. As a result, the number of good grids calculated was 54. It is judged that the classification of the grid has been achieved regarding topography and land use as a characteristic that appeared in the classification of the grid. In particular, in the case of elevation or city area, there was a large deviation, and the calculated good grid was judged to be a group between the two distributions.
Keywords
Evapotranspiration; Observatory design; Spatial analysis; Remote sensing data;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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