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http://dx.doi.org/10.3741/JKWRA.2012.45.10.1069

The Applicability of Analysis Scheme for Spatio-Temporal Droughts Using Mass Moment Concept  

Yoo, Ji Young (Department of Civil and Environmental Engineering, Hanyang University)
So, Byung Jin (Department of Civil Engineering, Chonbuk National University)
Kim, Tae Woong (Department of Civil and Environmental Engineering, Hanyang University)
Kwon, Hyun Han (Department of Civil Engineering, Chonbuk National University)
Publication Information
Journal of Korea Water Resources Association / v.45, no.10, 2012 , pp. 1069-1079 More about this Journal
Abstract
In this study, to analyze travelling route and transition characteristics which is a spatial time interpretation method now actively progressed in domestic as well as abroad, it was intended to develop new drought interpretation technique which can decide the centroid and orbit of drought through assuming ellipse using Mass Moment concept. First of all, after estimating Standard Precipitation Index (SPI) per different precipitation observatory station to extract drought events, by selecting precipitation sites where drought starting and end point are same, these were categorized as CASE. As a results, with various CASE selections falling in specific duration for monthly drought analysis, it is possible to find out drought area that additionally occurred, and drought reliving process could be confirmed more definitely. Therefore, if the research methods adopted in this study for drought monitoring are utilized, not only accurate spatio-temporal drought analysis is possible, also pattern of drought centroid movement can be analyzed by establishing statistically significant spatial characteristics data after separating all the drought events that occurred sporadically in Korea Peninsula.
Keywords
drought; standardized precipitation index (SPI); mass moment; ellipse; spatio-temporal analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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