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Forecasting the Indian Ocean Dipole With Deep Learning Techniques
Geophysical Research Letters, 2021In the present research, Indian Ocean Dipole (IOD) prediction was explored using statistical methods based on deep learning techniques. First, convolutional neural network (CNN) models were trained using sea‐surface temperature anomaly (SSTA) maps of the
Jun Liu +5 more
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Decadal Prediction of Indian Ocean Dipole
2020<p>&#160;</p><p>Decadal Prediction is the prediction of climate for the next 5&#8211;20 years. Decadal Prediction has gained great importance as it tries to bridge the gap between seasonal and Centennial (50-100 year) predictions creating a balance between initial conditions and ...
Feba Francis +2 more
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INTERANNUAL OSCILLATORY MODES IN THE INDIAN OCEAN AND PREDICTABILITY OF THE INDIAN OCEAN DIPOLE
2011This study further investigates the 18-month and 3-year variability modes in the Indian Ocean and their possible use for the prediction of the Indian Ocean dipole (IOD). We argue that the IOD is not an isolated event triggered by a particular ocean–atmosphere state but a continuous oscillatory process, so that the extremely shallow thermocline in ...
IRINA V. SAKOVA, RICHARD COLEMAN
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The Indian Ocean Dipole: A Monopole in SST
Journal of Climate, 2014Abstract The claim for a zonal-dipole structure in interannual variations of the tropical Indian Ocean (IO) SSTs—the Indian Ocean dipole (IOD)—is reexamined after accounting for El Niño–Southern Oscillation’s (ENSO) influence. The authors seek an a priori accounting of ENSO’s seasonally stratified influence on IO SSTs and evaluate the ...
Sumant Nigam, Yongjing Zhao
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Thermocline Warming Induced Extreme Indian Ocean Dipole in 2019
Geophysical Research Letters, 2020The 2019 positive Indian Ocean Dipole (IOD) was the strongest event since the 1960s which developed independently without coinciding El Niño. The dynamics is not fully understood. Here we show that in March–May, westward propagating oceanic Rossby waves,
Yan Du +4 more
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International Journal of Climatology, 2022
As two pronounced anomaly patterns over the tropical Indian Ocean, the Indian Ocean basin mode (IOBM) and the Indian Ocean Dipole (IOD) feature phase‐locking with seasonal cycle.
Mengke Zhang +5 more
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As two pronounced anomaly patterns over the tropical Indian Ocean, the Indian Ocean basin mode (IOBM) and the Indian Ocean Dipole (IOD) feature phase‐locking with seasonal cycle.
Mengke Zhang +5 more
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2018
Abstract Discovered at the very end of the 20th century, the Indian Ocean Dipole (IOD) is a mode of natural climate variability that arises out of coupled ocean–atmosphere interaction in the Indian Ocean. It is associated with some of the largest changes of ocean–atmosphere state over the equatorial Indian Ocean on interannual time ...
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Abstract Discovered at the very end of the 20th century, the Indian Ocean Dipole (IOD) is a mode of natural climate variability that arises out of coupled ocean–atmosphere interaction in the Indian Ocean. It is associated with some of the largest changes of ocean–atmosphere state over the equatorial Indian Ocean on interannual time ...
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What Caused the Extreme Indian Ocean Dipole Event in 2019?
Geophysical Research Letters, 2020An extreme positive Indian Ocean Dipole (IOD) event occurred in 2019 boreal autumn, which has induced severe climate impacts around the Indian Ocean basin. In this study, the cause for 2019 IOD event and the related mechanism are explored.
Bo Lu, H. Ren
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Increasing Influence of Indian Ocean Dipole on Precipitation Over Central Equatorial Africa
Geophysical Research Letters, 2021Using observational rainfall datasets, we identify a positive correlation between precipitation over Central Equatorial Africa (CEA) and the Indian Ocean Dipole (IOD) during September‐December (SOND) for the period 1981–2019.
Yan Jiang +4 more
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Impact of Biannual Rossby Waves on the Indian Ocean Dipole
IEEE Geoscience and Remote Sensing Letters, 2008TOPEX/Poseidon sea surface height anomalies during 1993-2002 are decomposed using 2-D finite impulse response filters which showed biannual Rossby waves (BRWs) in the equatorial Indian Ocean (peak at 1.5degS) and in the southern tropical Indian Ocean (peak at 10.5degS) during Indian Ocean dipole (IOD) years. Anomalous downwelling BRWs in the equatorial
C. Gnanaseelan, B. H. Vaid, P. S. Polito
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