Search Results - "Alexander Sen Gupta"

Effects of volcanism on tropical variability by Maher, Nicola, McGregor, Shayne, England, Matthew H., Gupta, Alexander Sen

“…The effects of large tropical volcanic eruptions on Indo‐Pacific tropical variability are investigated using 122 historical ensemble members from the Coupled…”
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Climate Drift in the CMIP5 Models by Sen Gupta, Alexander, Jourdain, Nicolas C., Brown, Jaclyn N., Monselesan, Didier

“…Climate models often exhibit spurious long-term changes independent of either internal variability or changes to external forcing. Such changes, referred to as…”
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Drivers of decadal hiatus periods in the 20th and 21st centuries by Maher, Nicola, Gupta, Alexander Sen, England, Matthew H.

“…The latest generation of climate model simulations are used to investigate the occurrence of hiatus periods in global surface air temperature in the past and…”
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Cold Tongue and Warm Pool ENSO Events in CMIP5: Mean State and Future Projections by Taschetto, Andréa S., Sen Gupta, Alexander, Jourdain, Nicolas C., Santoso, Agus, Ummenhofer, Caroline C., England, Matthew H.

“…The representation of the El Niño–Southern Oscillation (ENSO) under historical forcing and future projections is analyzed in 34 models from the Coupled Model…”
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The Indo-Australian monsoon and its relationship to ENSO and IOD in reanalysis data and the CMIP3/CMIP5 simulations by Jourdain, Nicolas C., Gupta, Alexander Sen, Taschetto, Andréa S., Ummenhofer, Caroline C., Moise, Aurel F., Ashok, Karumuri

“…A large spread exists in both Indian and Australian average monsoon rainfall and in their interannual variations diagnosed from various observational and…”
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What causes southeast Australia's worst droughts? by Ummenhofer, Caroline C., England, Matthew H., McIntosh, Peter C., Meyers, Gary A., Pook, Michael J., Risbey, James S., Gupta, Alexander Sen, Taschetto, Andréa S.

“…Since 1995, a large region of Australia has been gripped by the most severe drought in living memory, the so‐called “Big Dry”. The ramifications for affected…”
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Coupled Ocean–Atmosphere–Ice Response to Variations in the Southern Annular Mode by Gupta, Alexander Sen, England, Matthew H.

“…The coupled ocean–atmosphere–ice response to variations in the Southern Annular Mode (SAM) is examined in the National Center for Atmospheric Research (NCAR)…”
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Further Insights on the Influence of the Indian Ocean Dipole on the Following Year’s ENSO from Observations and CMIP5 Models by Jourdain, Nicolas C., Lengaigne, Matthieu, Vialard, Jérome, Izumo, Takeshi, Sen Gupta, Alexander

“…Recent observational studies have suggested that negative and positive Indian Ocean dipole (IOD) events (nIOD and pIOD, respectively) favor a transition…”
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Indian and Pacific Ocean Influences on Southeast Australian Drought and Soil Moisture by Ummenhofer, Caroline C., Sen Gupta, Alexander, Briggs, Peter R., England, Matthew H., McIntosh, Peter C., Meyers, Gary A., Pook, Michael J., Raupach, Michael R., Risbey, James S.

“…The relative influences of Indian and Pacific Ocean modes of variability on Australian rainfall and soil moisture are investigated for seasonal, interannual,…”
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Multi-decadal projections of surface and interior pathways of the Fukushima Cesium-137 radioactive plume by Rossi, Vincent, Van Sebille, Erik, Sen Gupta, Alexander, Garçon, Véronique, England, Matthew H.

“…Following the March 2011 Fukushima disaster, large amounts of water contaminated with radionuclides, including Cesium-137, were released into the Pacific…”
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Projected Changes to the Southern Hemisphere Ocean and Sea Ice in the IPCC AR4 Climate Models by Gupta, Alexander Sen, Santoso, Agus, Taschetto, André A S., Ummenhofer, Caroline C., Trevena, Jessica, England, Matthew H.

“…Fidelity and projected changes in the climate models, used for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4), are…”
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Contributions of Indian Ocean Sea Surface Temperatures to Enhanced East African Rainfall by Ummenhofer, Caroline C., Gupta, Alexander Sen, England, Matthew H., Reason, Chris J. C.

“…Links between extreme wet conditions over East Africa and Indian Ocean sea surface temperatures (SST) are investigated during the core of the so-called short…”
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Genesis of Indian Ocean Mixed Layer Temperature Anomalies: A Heat Budget Analysis by Santoso, Agus, Gupta, Alexander Sen, England, Matthew H.

“…The genesis of mixed layer temperature anomalies across the Indian Ocean are analyzed in terms of the underlying heat budget components. Observational data,…”
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Anomalous Rainfall over Southwest Western Australia Forced by Indian Ocean Sea Surface Temperatures by Ummenhofer, Caroline C., Gupta, Alexander Sen, Pook, Michael J., England, Matthew H.

“…The potential impact of Indian Ocean sea surface temperature (SST) anomalies in modulating midlatitude precipitation across southern and western regions of…”
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Multi-decadal modulation of the El Niño–Indian monsoon relationship by Indian Ocean variability by Ummenhofer, Caroline C, Sen Gupta, Alexander, Li, Yue, Taschetto, Andréa S, England, Matthew H

“…The role of leading modes of Indo-Pacific climate variability is investigated for modulation of the strength of the Indian summer monsoon during the period…”
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Coupled Ocean–Atmosphere Feedback in the Southern Annular Mode by Gupta, Alexander Sen, England, Matthew H.

“…Previous studies have demonstrated that while the Southern Annular Mode (SAM) is an intrinsic feature of the atmosphere, it projects strongly onto the ocean…”
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Australian Monsoon Variability Driven by a Gill–Matsuno-Type Response to Central West Pacific Warming by Taschetto, Andréa S., Haarsma, Reindert J., Gupta, Alexander Sen, Ummenhofer, Caroline C., Hill, Khalia J., England, Matthew H.

“…The objective of this study is to investigate the mechanisms that cause the anomalous intensification of tropical Australian rainfall at the height of the…”
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On the predictability of SSTA indices from CMIP5 decadal experiments by Choudhury, Dipayan, Sharma, Ashish, Sivakumar, Bellie, Sen Gupta, Alexander, Mehrotra, Rajeshwar

“…Sea surface temperature anomaly climate indices in the tropical Pacific and Indian Oceans are statistically significant predictors of seasonal rainfall in the…”
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Modulation of Australian Precipitation by Meridional Gradients in East Indian Ocean Sea Surface Temperature by Ummenhofer, Caroline C., Gupta, Alexander Sen, Taschetto, Andréa S., England, Matthew H.

“…This study explores the impact of meridional sea surface temperature (SST) gradients across the eastern Indian Ocean on interannual variations in Australian…”
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Causes of Late Twentieth-Century Trends in New Zealand Precipitation by Ummenhofer, Caroline C., Gupta, Alexander Sen, England, Matthew H.

“…Late twentieth-century trends in New Zealand precipitation are examined using observations and reanalysis data for the period 1979–2006. One of the aims of…”
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