Article
Meteorology & Atmospheric Sciences
Jin-Sil Hong, Sang-Wook Yeh, Young-Min Yang
Summary: The authors investigated the interbasin interactions between the Pacific and Atlantic Oceans based on the phase relationship of Pacific decadal oscillation (PDO)/Atlantic multidecadal oscillation (AMO). They found that the characteristics of the interactions depend on whether the PDO and AMO phases are in phase or out of phase.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Jie Jiang, Tianjun Zhou, Xiaolong Chen, Bo Wu
Summary: Central Asia is highly sensitive to changes in precipitation, with observed variations in precipitation over the past decades being related to tropical Pacific decadal variability and Atlantic multidecadal variability. These variations can affect precipitation over central Asia by influencing atmospheric circulation patterns in the region.
JOURNAL OF CLIMATE
(2021)
Article
Environmental Sciences
Wenguang Wei, Zhongwei Yan, Zhen Li
Summary: This paper demonstrates distinct regional patterns of the influence of the Pacific Decadal Oscillation (PDO) on precipitation extremes worldwide. Different regions show different relationships between precipitation extremes and PDO, with eastern China showing a 'southern flood and northern drought' pattern, Australia showing a tripole pattern, and northwestern Europe and western Russia showing positive correlation.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Chiyu Zhao, Xin Geng, Wenjun Zhang, Li Qi
Summary: This study finds that the Atlantic multidecadal oscillation (AMO) can affect the El Nino-Southern Oscillation (ENSO). It shows that during a negative AMO phase, the atmospheric anomaly amplitudes in the tropical Pacific for El Nino events are more pronounced and for La Nina events are weaker, compared to a positive AMO phase. This discrepancy may be largely attributed to the decadal modulation of AMO.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Binhe Luo, Dehai Luo, Aiguo Dai, Ian Simmonds, Lixin Wu
Summary: This paper explores the physical cause of the decadal variability of the warm Arctic-cold Eurasia (WACE) pattern observed in recent decades. The study finds that the phases of the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) mediate the decadal variability of the WACE pattern. The study also highlights the influence of PDO and AMO on the meridional structure of the WACE pattern, leading to different spatial distributions of warm and cold anomalies.
Article
Meteorology & Atmospheric Sciences
Zhen Fu, Pang-Chi Hsu, Juan Li, Jian Cao, Young-Min Yang, Fei Liu
Summary: This study has found the interdecadal connection between tropical Pacific MJO activity and North Atlantic sea surface temperature. The MJO activity tends to extend eastward to the central tropical Pacific during the negative phase of AMO, while being confined to the Indo-Pacific warm pool during the positive phase of AMO.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Yucen Ge, Jiapeng Miao, Xianmei Lang, Dong Si, Dabang Jiang
Summary: The joint effects of the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) on eastern China summer precipitation (ECSP) during the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA) are investigated using simulations from five climate models. The results show that the influence of the PDO and AMO on ECSP differ during the MCA and LIA periods. During the MCA, the PDO-induced meridional wave train dominates, while the AMO-induced zonal wave train has a secondary effect. In contrast, during the LIA, the AMO-induced zonal wave train has an overwhelming impact on ECSP.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Nour-Eddine Omrani, Noel Keenlyside, Katja Matthes, Lina Boljka, Davide Zanchettin, Johann H. Jungclaus, Sandro W. Lubis
Summary: The climate trends in the Northern Hemisphere in the stratosphere, troposphere, ocean, and cryosphere are related to each other. A coupled stratosphere/troposphere/ocean-oscillation framework can explain these trends. The positive Northern Annular Mode (NAM) and stratospheric cooling lead to strengthening of Atlantic overturning circulation and extratropical Atlantic-gyres, causing oceanic heat transport and Arctic sea-ice melting. This initiates a wave-induced negative NAM and stratospheric warming, reversing the oscillation phase.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Dong Si, Dabang Jiang, Aixue Hu, Xianmei Lang
Summary: By analyzing a 113-year observational dataset, this study found that the interdecadal fluctuation of summer precipitation in Northeast Asia is influenced by the North Atlantic sea surface temperature, known as the Atlantic Multidecadal Oscillation (AMO). Model simulations confirmed that the multidecadal variability in the North Atlantic can cause observed interdecadal variations in Northeast Asia summer precipitation.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Yusen Liu, Cheng Sun, Zhanqiu Gong, Jianping Li, Zhen Shi
Summary: This study investigates the multidecadal variations in cold wave frequency (CWF) across the Northern Hemisphere and finds an inverse relationship between Greenland and central Eurasia. The Atlantic Multidecadal Oscillation (AMO) is likely the driving force behind the multidecadal seesaw in CWF, with limited effects from Arctic sea ice. Results suggest that the temperature changes in Greenland and central Eurasia correspond closely with the frequency of cold wave activities.
Article
Multidisciplinary Sciences
Chengfei He, Amy C. Clement, Sydney M. Kramer, Mark A. Cane, Jeremy M. Klavans, Tyler M. Fenske, Lisa N. Murphy
Summary: The multidecadal variability in the tropical Atlantic climate is influenced by the cross-equatorial gradient in sea surface temperatures (SSTs), which is largely driven by radiative perturbations associated with anthropogenic emissions and volcanic aerosols. This relationship is obscured in models due to overestimations of warming trends in the Northern Hemisphere. However, when these overestimations are removed, correlations between SSTs and Atlantic hurricane formation and Sahel rainfall emerge, especially since 1950 when anthropogenic aerosol forcing has been high.
Letter
Geosciences, Multidisciplinary
Huanping Huang, William D. Collins, Christina M. Patricola, Yohan Ruprich-Robert, Paul A. Ullrich, Alexander J. Baker
Summary: This research examines the impact of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using idealized climate model simulations. The results show that TC frequency in the North Atlantic increases significantly under warmer sea surface temperature, higher humidity, increased vorticity, and weaker vertical wind shear conditions associated with AMV+. Conversely, TC occurrence decreases in the western North Pacific and South Pacific due to stronger wind shear and lower humidity associated with AMV+. The contrasting responses are attributed to the strengthened Walker Circulation between the Atlantic and Pacific.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Zhaoxiangrui He, Aiguo Dai, Mathias Vuille
Summary: The South American climate is influenced by both Atlantic Multidecadal Variability (AMV) and Pacific Multidecadal Variability (PMV), with complex correlations observed between precipitation and temperature changes. The perturbations in local circulations play a key role in driving these anomalies, with varying patterns observed in different seasons and regions.
JOURNAL OF CLIMATE
(2021)
Article
Water Resources
Horst-Joachim Ludecke, Gisela Muller-Plath, Michael G. Wallace, Sebastian Luning
Summary: This study conducted a continent-wide analysis of African rainfall variability on a month-by-month and country-by-country basis, examining the impacts of multiple potential climatic drivers on rainfall. The results show complex relationships between African rainfall and climate change drivers, which can help improve short- to midterm rainfall forecasts in Africa and provide important calibration data for further improvements in climate models.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2021)
Article
Meteorology & Atmospheric Sciences
Peng Liu, Ying Zhang, Mingyue Tang
Summary: Research shows that the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation have significant impacts on the fog frequency in Southwest China during autumn-winter. Abnormally cold conditions in the North Atlantic and North Pacific lead to higher fog frequency in the region, while the instability of the atmosphere is influenced by Rossby wave train propagation and Siberian high-pressure anomalies. The movement of cold air from Northern China modulates water vapor, temperature, and humidity, resulting in water vapor supersaturation in the lower atmosphere of Southwest China.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Milind Mujumdar, K. P. Sooraj, R. Krishnan, B. Preethi, Manish K. Joshi, Hamza Varikoden, Bhupendra B. Singh, M. Rajeevan
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, Fred Kucharski
Article
Meteorology & Atmospheric Sciences
Fred Kucharski, Manish K. Joshi
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2017)
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, Kyung-Ja Ha
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, Archana Rai, A. C. Pandey
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2013)
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, A. C. Pandey
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2011)
Article
Meteorology & Atmospheric Sciences
Archana Rai, Manish K. Joshi, A. C. Pandey
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2012)
Article
Multidisciplinary Sciences
Manish K. Joshi, Archana Rai, Ashwini Kulkarni, Fred Kucharski
SCIENTIFIC REPORTS
(2020)
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, Muhammad Adnan Abid, Fred Kucharski
Summary: The study reveals that in early winter, a heating dipole anomaly in the Indian Ocean, partly forced by ENSO, can set up a wave train reaching the North Atlantic and impacting the North Atlantic Oscillation, while in late winter, this response to ENSO weakens and does not significantly influence the North Atlantic region. Models that reproduce the response in the Indian Ocean and North Atlantic are those with a strong early winter ENSO response in the subtropical South Asian jet region along with tropical Indian Ocean heating dipole.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Manish K. Joshi, Archana Rai, Ashwini Kulkarni
Summary: the present study proposes a sea surface temperature-based index called Global-scale Interdecadal Variability (GIV) that combines the variability of Atlantic Multidecadal Oscillation (AMO) and Interdecadal Pacific Oscillation (IPO). GIV is found to be significantly associated with rainfall changes in the Sahelian and Indian region, explaining a larger proportion of the variance compared to AMO and IPO individually. The mechanism behind this rainfall-GIV teleconnection is related to modifications in the Walker circulation. Some state-of-the-art climate models are able to reproduce the spatial structure and physical mechanism of observed GIV.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
A. K. Mittal, U. P. Singh, A. Tiwari, S. Dwivedi, M. K. Joshi, K. C. Tripathi
METEOROLOGY AND ATMOSPHERIC PHYSICS
(2015)