Development and Application of Estimation Method for the Scale of Damage in Domestic Drought

Abstract

In this study, an estimation method for damage and recovery costs on account of domestic droughts was developed. The estimation method for the scale of damage was applied based on the national drought statistics generated by the Ministry of Public Administration and Security. The damage and recovery costs of domestic droughts were calculated based on the damage data of domestic droughts that occurred in 2018 and 2019. The estimation method was developed for damage costs incurred due to domestic droughts by considering the number of people affected by water supply restrictions, accommodation, and restaurants. The method for estimating recovery costs after domestic droughts was developed considering domestic disaster support, water support, water development support, equipment support, and human resource support for victims. Due to the construction of a DB of limited domestic drought damage status, the damage costs were calculated for the number of people affected by water supply restrictions, and the recovery costs were calculated for the domestic disaster and water support. The total damage costs caused by domestic droughts in 2018 amounted to 612.471 M KRW, and in Gangwon-do and Jeollanam-do, they were 218.616 M KRW in 2019, and more than 90% of Incheon metropolitan city was calculated. The total recovery costs caused by domestic droughts in 2018 were 5,994.555 M KRW, and in Gangwon-do and Jeollanam-do, they amounted to 4,882.024 M KRW in 2019, and more than 90% of Chungcheongnam-do was calculated. The difference between the damage and recovery costs of domestic droughts was approximately tenfold in 2018 and twentyfold in 2019.