Reliability–Resiliency–Vulnerability Approach for Drought Analysis in South Korea Using 28 GCMs
Open Access
- 27 August 2018
- journal article
- research article
- Published by MDPI AG in Sustainability
- Vol. 10 (9), 3043
- https://doi.org/10.3390/su10093043
Abstract
This study developed a Reliability–Resiliency–Vulnerability (R–R–V) approach that aggregates the frequency, duration, and severity of droughts estimated using the Standardized Precipitation Evapotranspiration Index (SPEI). This approach was used to analyze the characteristics of droughts for the current (1976–2005) and the future (2010–2099) climates. The future climate data obtained from 28 general circulation models (GCMs) of Coupled Model Intercomparison Project Phase 5 (CMIP5) was divided into three general periods: Future 1: 2010–2039, Future 2: 2040–2069; and Future 3: 2070–2099. As a result, aggregation R–R–V representing water availability would increase during Future 1, and then gradually decrease until the end of the century. The frequencies of future drought events for Future 2 and Future 3 were similar to the current frequency, while the durations will be longer and the severity will be higher at most locations during Future 3. Thus, the mean of R–R–V over South Korea is expected to decrease, except for Future 1, and the spatial variability of R–R–V is expected to increase. In the end, the changes in the mean and variance of rainfall and temperature would lead to a decrease in the mean and increase in the spatial variation of sustainability in South Korea. This approach and its results can be used to establish a long-term drought strategy for regions where the risk of future drought is expected to increase.Keywords
Funding Information
- SeoulTech ((Seoul National University of Science and Technology))
This publication has 30 references indexed in Scilit:
- Prioritizing the best sites for treated wastewater instream use in an urban watershed using fuzzy TOPSISResources, Conservation and Recycling, 2013
- Projection of Extreme Precipitation at the end of 21st Century over South Korea based on Representative Concentration Pathways (RCP)Atmosphere, 2012
- A comparison of statistical downscaling methods suited for wildfire applicationsInternational Journal of Climatology, 2011
- A Multiscalar Drought Index Sensitive to Global Warming: The Standardized Precipitation Evapotranspiration IndexJournal of Climate, 2010
- The rationale behind the success of multi-model ensembles in seasonal forecasting - II. Calibration and combinationTellus A: Dynamic Meteorology and Oceanography, 2005
- Using Bayesian Model Averaging to Calibrate Forecast EnsemblesMonthly Weather Review, 2005
- A Probability and Decision-Model Analysis of a Multimodel Ensemble of Climate Change SimulationsJournal of Climate, 2001
- Quantifying trends in system sustainabilityHydrological Sciences Journal, 1997
- On the definition and modelling of streamflow drought duration and deficit volumeHydrological Sciences Journal, 1997
- Long‐memory flow models in reservoir analysis: What is their practical value?Water Resources Research, 1981