SMMR-SSM/I derived Greenland Sea ice variability: links with Indian and Korean Monsoons

Prabhu, Amita; Oh, Jai-Ho; Kim, In-won; Kripalani, R. H.; Pandithurai, G.

doi:10.1007/s00382-017-3659-0

Cited by 9 publications

(21 citation statements)

References 92 publications

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“…This circulation pattern is quite similar to the 500 hPa geopotential height distribution, which demonstrates the position of the Bonin high and its connection with KSM (Ha and Lee, ). Thus, the experimental results were consistent with the observed Greenland sea ice variability and its influence on the out‐of‐phase relationship between ISM and KSM (Table , Prabhu et al ., ).…”

Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

“… Note : For observations, 10 strongest episodes each of below and above normal on Greenland sea ice, Eurasian snow, and ENSO are selected based on Prabhu et al ., .…”

Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

“…Unlike Indian Monsoon Rainfall (IMR), however, a robust relationship between ENSO and KMR is controversial. Several studies have pointed out the statistically insignificant relationship between ENSO and KMR (Ho et al ., ; Prabhu et al ., ). Other studies have suggested that the weak relationship between ENSO and KMR may be because the different flavours and evolution of ENSO have not been considered (Kug et al ., ; Yeo et al ., ).…”

Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

“…10 of Prabhu et al . ()). Further, the snow variability may have decreased the surface solar flux anomalies over western Eurasia (30–120°E) from DJF(0/1) to MAM(1) (Figures b and b) and increased them over eastern Eurasia (120–140°E) because of the albedo effect of the snow cover (Figure b).…”

Section: Responses Of Ism and Ksm To Combined Forcingsmentioning

confidence: 99%

“…Although the South Asian and East Asian regions are geographically distant and independent from each other, their monsoon systems interact with each other on different timescales. Multiple studies have examined the in‐phase and out‐of‐phase inter‐annual variations between SAM and EASM (Kripalani and Kulkarni, ; Wu, ; Ha et al ., ; Greatbatch et al ., ; Ha et al ., ; Wu, ; Prabhu et al ., ). The out‐of‐phase relationship between SAM and EASM has strengthened recently (Yun et al ., ; Preethi et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Combined impact of Greenland sea ice, Eurasian snow, and El Niño–Southern Oscillation on Indian and Korean summer monsoons

Kim

Prabhu

et al. 2019

Intl Journal of Climatology

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The combined impact of Greenland sea ice, Eurasian snow, and the El Niño–Southern Oscillation (ENSO) on the out‐of‐phase relationship between the Indian summer monsoon (ISM) and Korean summer monsoon (KSM) were investigated through numerical experiments. The results revealed that Indian and Korean summer rainfalls showed nonlinear responses to ENSO and Greenland sea ice forcing when the events co‐occurred. Above‐normal Greenland sea ice and a concurrent La Niña showed a distinct in‐phase relationship with ISM and out‐of‐phase relationship with KSM. Below‐normal and above‐normal Greenland sea ice during boreal autumn surrounded the Greenland region with anomalous low pressure and high pressure, respectively. These were associated with a barotropic +west/−east or –west/+east dipole pattern, respectively, over Eurasia during the subsequent winter and spring seasons. Furthermore, these patterns led to positive and negative snow depth anomalies, respectively, over western Eurasia and the opposite snow tendency over eastern Eurasia during the subsequent spring. This variability in Eurasian snow patterns may play a crucial role in ISM and KSM. The co‐occurrence of ENSO variability also generates high‐ and low‐pressure anomaly patterns over the Indian Ocean that may be related to unfavourable or favourable ISM, respectively, while influencing the negative or positive phases of a Pacific Japan (PJ)‐like teleconnection pattern that may be related to unfavourable or favourable KSM, respectively. Therefore, coexisting ENSO forcing may play a dominant role in ISM and KSM, but Greenland sea ice forcing and Eurasian snow variation intensify the out‐of‐phase relationship between ISM and KSM.

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Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

“… Note : For observations, 10 strongest episodes each of below and above normal on Greenland sea ice, Eurasian snow, and ENSO are selected based on Prabhu et al ., .…”

Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

Section: Responses Of Ism and Ksm To Individual Forcingsmentioning

confidence: 97%

Section: Responses Of Ism and Ksm To Combined Forcingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Combined impact of Greenland sea ice, Eurasian snow, and El Niño–Southern Oscillation on Indian and Korean summer monsoons

Kim

Prabhu

et al. 2019

Intl Journal of Climatology

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Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature, precipitation and atmospheric circulation

2018

Clim Dyn

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Erratic Asian summer monsoon 2020: COVID-19 lockdown initiatives possible cause for these episodes?

Kripalani

et al. 2022

Clim Dyn

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The summer (June through September) monsoon 2020 has been very erratic with episodes of heavy and devastating rains, landslides and catastrophic winds over South Asia (India, Pakistan, Nepal, Bangladesh), East Asia (China, Korea, and Japan), and Southeast Asia (Singapore, Thailand, Vietnam, Laos, Cambodia, Philippines, Indonesia). The withdrawal of the summer monsoon over India was delayed by 2 weeks. The monsoon season over East Asia has been the longest. China recorded a Dam burst in the twentieth century. Furthermore, the Korean Peninsula has experienced back-to-back severe tropical cyclones. Could the lockdown activities initiate to control the COVID-19 spread a possible cause for these major episodes? The strict enforcement of the lockdown regulations has led to a considerable reduction of air pollutants—dust and aerosols throughout the world. A recent study based on satellites and merged products has documented a statistically significant mean reduction of about 20, 8, and 50% in nitrogen dioxide, Aerosol Optical Depth (AOD) and PM2.5 concentrations, respectively over the megacities across the globe. Our analysis reveals a considerable reduction of about 20% in AOD over South as well as over East Asia, more-over East Asia than over South Asia. The reduced aerosols have impacted the strength of the incoming solar radiation as evidenced by enhanced warming, more-over the land than the oceans. The differential warming over the land and the ocean has resulted in the amplification of the meridional ocean-land thermal contrast and strengthening of the monsoon flow. These intense features have supported the surplus transport of moisture from the oceans towards the main lands. Some similarity between the anomalous rainfall pattern and the anomalous AOD pattern is discernable. In particular, the enhancement of rainfall, the reduction in AOD and the surface temperature warming match very well over two regions one over West-Central India and the other over the Yangzte River Valley. Results further reveal that the heavy rains over the Yangzte River Valley could be associated with the preceding reduced aerosols, while the heavy rains over West-Central India could be associated with reduced aerosols and also due to the surface temperature warming.

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SMMR-SSM/I derived Greenland Sea ice variability: links with Indian and Korean Monsoons

Cited by 9 publications

References 92 publications

Combined impact of Greenland sea ice, Eurasian snow, and El Niño–Southern Oscillation on Indian and Korean summer monsoons

Combined impact of Greenland sea ice, Eurasian snow, and El Niño–Southern Oscillation on Indian and Korean summer monsoons

Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature, precipitation and atmospheric circulation

Erratic Asian summer monsoon 2020: COVID-19 lockdown initiatives possible cause for these episodes?

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