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2024 Vol.66, Issue 3 Preview Page
Comparative Analysis of the 2022 Southern Agricultural Drought Using Evapotranspiration-Based ESI and EDDI

증발산 기반 ESI와 EDDI를 활용한 2022년 남부지역의 농업 가뭄 분석

Gwang-Su Parka
,
Won-Ho Namb†
,
Hee-Jin Leec
,
Chanyang Surd
,
Tae-Hyun Hae
,
Young-Jun Jof
박 광수a
,
남 원호b†
,
이 희진c
,
서 찬양d
,
하 태현e
,
조 영준f
aGraduate Student, School of Social Safety and Systems Engineering, Hankyong National University, Anseong, Republic of Korea
bAssociate Professor, School of Social Safety and Systems Engineering, Institute of Agricultural Environmental Science, National Agricultural Water Research Center, Hankyong National University, Anseong, Republic of Korea
cPh.D. Student, Department of Convergence Systems Engineering, Hankyong National University, Anseong, Republic of Korea
dSenior Researcher, National Agricultural Water Research Center, Hankyong National University, Anseong, Republic of Korea
eDeputy Director, Water Management Supporting Department, Water Resources Management Office, Korea Rural Community Corporation (KRC), Sejong, Republic of Korea
fDirector, Water Management Supporting Department, Water Resources Management Office, Korea Rural Community Corporation(KRC), Sejong, Republic of Korea
a안성시 한경대학교 사회안전시스템공학과 대학원생
b안성시 한경대학교 농업환경과학원 국립농업용수연구센터 사회안전시스템공학부 부교수
c안성 한경대학교 융합시스템공학과 박사과정 학생
d안성 한경대학교 국립농업용수연구센터 선임연구원
e세종특별자치시 한국농어촌공사(KRC) 수자원관리실 물관리지원부 차장
f세종시 한국농어촌공사(KRC) 수자원관리실 물관리지원부장
† Corresponding author Tel.: +82-10-8009-9900 E-mail: wonho.nam@hknu.ac.kr
2024. pp. 25-37
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Abstract

Global warming-induced drought inflicts significant socio-economic and environmental damage. In Korea, the persistent drought in the southern region since 2022 has severely affected water supplies, agriculture, forests, and ecosystems due to uneven precipitation distribution. To effectively prepare for and mitigate such impacts, it is imperative to develop proactive measures supported by early monitoring systems. In this study, we analyzed the spatiotemporal changes of multiple evapotranspiration-based drought indices, focusing on the flash drought event in the southern region in 2022. The indices included the Evaporative Demand Drought Index (EDDI), Standardized Precipitation Evapotranspiration Index (SPEI) considering precipitation and temperature, and the Evaporative Stress Index (ESI) based on satellite images. The Standardized Precipitation Index (SPI) and SPEI indices utilized temperature and precipitation data from meteorological observation stations, while the ESI index was based on satellite image data provided by the MODIS sensor on the Terra satellite. Additionally, we utilized the Evaporative Demand Drought Index (EDDI) provided by the North Oceanic and Atmospheric Administration (NOAA) as a supplementary index to ESI, enabling us to perform more effective drought monitoring. We compared the degree and extent of drought in the southern region through four drought indices, and analyzed the causes and effects of drought from various perspectives. Findings indicate that the ESI is more sensitive in detecting the timing and scope of drought, aligning closely with observed drought trends.

Keywords
Evapotranspiration
flash drought
satellite imagery
drought monitoring
evaporative stress index
evaporative demand drought index
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 66
  • No :3
  • Pages :25-37
  • Received Date : 2024-02-26
  • Revised Date : 2024-04-20
  • Accepted Date : 2024-04-23
  • DOI :https://doi.org/10.5389/KSAE.2024.66.3.025
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