Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Open Access Hydrol. Earth Syst. Sci. Discuss., 10, 14675–14704, 2013 Hydrology and www.hydrol-earth-syst-sci-discuss.net/10/14675/2013/ Earth System doi:10.5194/hessd-10-14675-2013 © Author(s) 2013. CC Attribution 3.0 License. Sciences Discussions This discussion paper is/has been under review for the journal Hydrology and Earth System Sciences (HESS). Please refer to the corresponding final paper in HESS if available. Development of streamflow drought severity- and magnitude-duration-frequency curves using the threshold level method J. H. Sung1, E.-S. Chung2, and K. S. Lee3 1Ministry of Land, Infrastructure and Transport, Yeongsan Flood Control Office, Gwangju, Republic of Korea 2Department of Civil Engineering, Seoul National University of Science and Technology, Seoul, 139-743, Republic of Korea 3Department of Civil Engineering, Seoul National University, Seoul, Republic of Korea Received: 5 October 2013 – Accepted: 14 November 2013 – Published: 3 December 2013 Correspondence to: E.-S. Chung (
[email protected]) Published by Copernicus Publications on behalf of the European Geosciences Union. 14675 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Abstract This study developed a comprehensive method to quantify streamflow drought sever- ity and magnitude based on a traditional frequency analysis. Two types of curve were developed: the streamflow drought severity-duration-frequency (SDF) curve and 5 the streamflow drought magnitude-duration-frequency (MDF) curve (e.g., a rainfall intensity-duration-frequency curve). Severity was represented as the total water deficit volume for the specific drought duration, and magnitude was defined as the daily aver- age water deficit.