TY - JOUR
T1 - Spatiotemporal relation of satellite-based meteorological to agricultural drought in the downstream Citarum watershed, Indonesia
AU - Dimyati, Muhammad
AU - Rustanto, Andry
AU - Ash Shidiq, Iqbal Putut
AU - Indratmoko, Satria
AU - Siswanto,
AU - Dimyati, Ratih Dewanti
AU - Nurlambang, Triarko
AU - Zubair, Ahmad
AU - Fakhruddin, Ahmad
AU - Siddiq, Ayyasy
AU - Adhanto, Diko Hary
AU - Maulidina, Kintan
AU - Auni, Ravidania
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/6
Y1 - 2024/6
N2 - Jatiluhur dam, located in West Java province, is one of the most extensive reservoirs in Indonesia and is used to secure the water supply for 240,000 ha of rice fields to prevent agricultural drought in the downstream Citarum watershed. During the last two decades, several areas in the downstream Citarum watershed have been experiencing agricultural drought following meteorological drought events. This study aimed to examine the spatiotemporal patterns of agricultural drought and their correlation with meteorological drought occurrence by utilizing a remote sensing image processing technique. The Normalized Difference Drought Index (NDDI) and Standardized Precipitation Index (SPI) derived from MODIS and CHIRPS data were used to estimate agricultural and meteorological drought events, respectively. The results showed that the magnitude of agricultural drought in the downstream Citarum watershed was varied and related to earlier meteorological drought. The agricultural drought mainly occurred after a meteorological event with the magnitude mostly related to the magnitude of the ONI and DMI. A strong El Nino and positive IOD will cause a higher magnitude of agricultural drought. The time lag between the two drought occurrences was found to be related to the distance of the paddy fields from the main irrigation network and the proximity of the main irrigation network to the Jatiluhur Dam spillway.
AB - Jatiluhur dam, located in West Java province, is one of the most extensive reservoirs in Indonesia and is used to secure the water supply for 240,000 ha of rice fields to prevent agricultural drought in the downstream Citarum watershed. During the last two decades, several areas in the downstream Citarum watershed have been experiencing agricultural drought following meteorological drought events. This study aimed to examine the spatiotemporal patterns of agricultural drought and their correlation with meteorological drought occurrence by utilizing a remote sensing image processing technique. The Normalized Difference Drought Index (NDDI) and Standardized Precipitation Index (SPI) derived from MODIS and CHIRPS data were used to estimate agricultural and meteorological drought events, respectively. The results showed that the magnitude of agricultural drought in the downstream Citarum watershed was varied and related to earlier meteorological drought. The agricultural drought mainly occurred after a meteorological event with the magnitude mostly related to the magnitude of the ONI and DMI. A strong El Nino and positive IOD will cause a higher magnitude of agricultural drought. The time lag between the two drought occurrences was found to be related to the distance of the paddy fields from the main irrigation network and the proximity of the main irrigation network to the Jatiluhur Dam spillway.
KW - Agricultural drought
KW - Downstream Citarum watershed
KW - Meteorological drought
KW - Normalized difference drought index
KW - Standardized precipitation index
KW - Time lag
UR - http://www.scopus.com/inward/record.url?scp=85187300283&partnerID=8YFLogxK
U2 - 10.1016/j.indic.2024.100339
DO - 10.1016/j.indic.2024.100339
M3 - Article
AN - SCOPUS:85187300283
SN - 2665-9727
VL - 22
JO - Environmental and Sustainability Indicators
JF - Environmental and Sustainability Indicators
M1 - 100339
ER -