The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI
Despite the diverse atmospheric circulations affecting the Indonesian Maritime Continent (IMC), i.e., El Nino Southern Oscillation-ENSO, Indian Ocean Dipole-IOD, Madden Julian Oscillation-MJO, Monsoon, there is a lack of research on their interaction with hydrological events in watersheds. This stud...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023028116 |
| _version_ | 1797815673652510720 |
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| author | Fauzan Ikhlas Wira Rohmat Wendi Harjupa Dede Rohmat Faizal Immaddudin Wira Rohmat |
| author_facet | Fauzan Ikhlas Wira Rohmat Wendi Harjupa Dede Rohmat Faizal Immaddudin Wira Rohmat |
| author_sort | Fauzan Ikhlas Wira Rohmat |
| collection | DOAJ |
| description | Despite the diverse atmospheric circulations affecting the Indonesian Maritime Continent (IMC), i.e., El Nino Southern Oscillation-ENSO, Indian Ocean Dipole-IOD, Madden Julian Oscillation-MJO, Monsoon, there is a lack of research on their interaction with hydrological events in watersheds. This study fills this gap by providing insights into the dominant atmospheric events and their correlation with the water supply in three characteristic watersheds, i.e., Tondano (north/Pacific Ocean), Jangka (south/Indian Ocean), and Kapuas (equatorial/interior) in IMC. The research used the standardized precipitation index for the 1-monthly (SPI1), 3-monthly (SPI3), and 6-monthly (SPI3) scale generated from 23 years (2000–2022) of monthly historical satellite rainfall data. The analysis compared each location's SPI indices with the monthly Nino 3.4, Dipole Mode Index (DMI), MJO (100E and 120E), Monsoon index, and streamflow data. The result shows that the dominant atmospheric events for the Tondano watershed were ENSO, IOD, and MJO, with correlation values of −0.62, −0.26, and −0.35, respectively. The MJO event was dominant for the Kapuas watershed, with a correlation value of −0.28. ENSO and IOD were dominant for the Jangka watershed, with correlation values of −0.27 and −0.28, respectively. The monsoon correlated less with the SPI3 in all locations, while it modulates the wet and dry period pattern annually. Most intense dry periods in Tondano occur with the activation of El Nino, while the intense wet period occurs even in normal atmospheric conditions. Most intense wet periods in Jangka occur with the activation of La Nina, while the intense dry period occurs even in normal atmospheric conditions. The occurrence of MJO compensates for the intense wet and dry periods in Kapuas. The correlation among SPI3, atmospheric circulation, and streamflow in the diverse watershed characteristics in the IMC watersheds could give strategic information for watershed management and applies to other watersheds with similar atmospheric circulation characteristics. |
| first_indexed | 2024-03-13T08:26:17Z |
| format | Article |
| id | doaj.art-df64001df8bb49d68a829669cff3962f |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-13T08:26:17Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-df64001df8bb49d68a829669cff3962f2023-05-31T04:44:54ZengElsevierHeliyon2405-84402023-05-0195e15604The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPIFauzan Ikhlas Wira Rohmat0Wendi Harjupa1Dede Rohmat2Faizal Immaddudin Wira Rohmat3Water Resources Development Center, Bandung Institute of Technology (ITB), CIBE Building 5th Floor, Jalan Ganesa No. 10, Bandung, 40132, West Java, IndonesiaResearch Center for Climate and Atmosphere, National Research and Innovation Agency (BRIN), Bandung, 40173, West Java, IndonesiaDepartment of Geography, Indonesia University of Education (UPI), Jalan Dr. Setiabudhi No. 229, Bandung, 40154, West Java, IndonesiaWater Resources Development Center, Bandung Institute of Technology (ITB), CIBE Building 5th Floor, Jalan Ganesa No. 10, Bandung, 40132, West Java, Indonesia; Faculty of Civil and Environmental Engineering Bandung Institute of Technology (ITB), FTSL Building, Jalan Ganesa No. 10, Bandung, 40132, West Java, IndonesiaDespite the diverse atmospheric circulations affecting the Indonesian Maritime Continent (IMC), i.e., El Nino Southern Oscillation-ENSO, Indian Ocean Dipole-IOD, Madden Julian Oscillation-MJO, Monsoon, there is a lack of research on their interaction with hydrological events in watersheds. This study fills this gap by providing insights into the dominant atmospheric events and their correlation with the water supply in three characteristic watersheds, i.e., Tondano (north/Pacific Ocean), Jangka (south/Indian Ocean), and Kapuas (equatorial/interior) in IMC. The research used the standardized precipitation index for the 1-monthly (SPI1), 3-monthly (SPI3), and 6-monthly (SPI3) scale generated from 23 years (2000–2022) of monthly historical satellite rainfall data. The analysis compared each location's SPI indices with the monthly Nino 3.4, Dipole Mode Index (DMI), MJO (100E and 120E), Monsoon index, and streamflow data. The result shows that the dominant atmospheric events for the Tondano watershed were ENSO, IOD, and MJO, with correlation values of −0.62, −0.26, and −0.35, respectively. The MJO event was dominant for the Kapuas watershed, with a correlation value of −0.28. ENSO and IOD were dominant for the Jangka watershed, with correlation values of −0.27 and −0.28, respectively. The monsoon correlated less with the SPI3 in all locations, while it modulates the wet and dry period pattern annually. Most intense dry periods in Tondano occur with the activation of El Nino, while the intense wet period occurs even in normal atmospheric conditions. Most intense wet periods in Jangka occur with the activation of La Nina, while the intense dry period occurs even in normal atmospheric conditions. The occurrence of MJO compensates for the intense wet and dry periods in Kapuas. The correlation among SPI3, atmospheric circulation, and streamflow in the diverse watershed characteristics in the IMC watersheds could give strategic information for watershed management and applies to other watersheds with similar atmospheric circulation characteristics.http://www.sciencedirect.com/science/article/pii/S2405844023028116Atmospheric circulationsStandardized precipitation indexStreamflowWatersheds |
| spellingShingle | Fauzan Ikhlas Wira Rohmat Wendi Harjupa Dede Rohmat Faizal Immaddudin Wira Rohmat The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI Heliyon Atmospheric circulations Standardized precipitation index Streamflow Watersheds |
| title | The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI |
| title_full | The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI |
| title_fullStr | The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI |
| title_full_unstemmed | The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI |
| title_short | The impacts of global atmospheric circulations on the water supply in select watersheds in the Indonesian Maritime Continent using SPI |
| title_sort | impacts of global atmospheric circulations on the water supply in select watersheds in the indonesian maritime continent using spi |
| topic | Atmospheric circulations Standardized precipitation index Streamflow Watersheds |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023028116 |
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