Search Results - "Graf, Hans F."

Central Pacific El Niño, the "subtropical bridge," and Eurasian climate by Graf, Hans-F., Zanchettin, Davide

“…This study contributes to the discussion on possible effects of El Niño on North Atlantic/European regional climates. We use NCEP/NCAR reanalysis data to show…”
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Potential Impact of Preceding Aleutian Low Variation on El Niño–Southern Oscillation during the Following Winter by Chen, Shangfeng, Chen, Wen, Wu, Renguang, Yu, Bin, Graf, Hans-F.

“…The present study reveals a close relation between the interannual variation of Aleutian low intensity (ALI) in March and the subsequent winter El…”
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Recent land cover changes on the Tibetan Plateau: a review by Cui, Xuefeng, Graf, Hans-F.

“…This paper reviews the land cover changes on the Tibetan Plateau during the last 50 years partly caused by natural climate change and, more importantly,…”
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The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem: Kobresia pastures of Tibet by Miehe, Georg, Schleuss, Per-Marten, Seeber, Elke, Babel, Wolfgang, Biermann, Tobias, Braendle, Martin, Chen, Fahu, Coners, Heinz, Foken, Thomas, Gerken, Tobias, Graf, Hans-F, Guggenberger, Georg, Hafner, Silke, Holzapfel, Maika, Ingrisch, Johannes, Kuzyakov, Yakov, Lai, Zhongping, Lehnert, Lukas, Leuschner, Christoph, Li, Xiaogang, Liu, Jianquan, Liu, Shibin, Ma, Yaoming, Miehe, Sabine, Mosbrugger, Volker, Noltie, Henry J, Schmidt, Joachim, Spielvogel, Sandra, Unteregelsbacher, Sebastian, Wang, Yun, Willinghöfer, Sandra, Xu, Xingliang, Yang, Yongping, Zhang, Shuren, Opgenoorth, Lars, Wesche, Karsten

“…With 450,000 km Kobresia (syn. Carex) pygmaea dominated pastures in the eastern Tibetan highlands are the world's largest pastoral alpine ecosystem forming a…”
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Different Impacts of the East Asian Winter Monsoon on the Surface Air Temperature in North America during ENSO and Neutral ENSO Years by Ma, Tianjiao, Chen, Wen, Graf, Hans-F., Ding, Shuoyi, Xu, Peiqiang, Song, Lei, Lan, Xiaoqing

“…The present study investigates different impacts of the East Asian winter monsoon (EAWM) on surface air temperature (Ts) in North America (NA) during ENSO and…”
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Interannual variability of the onset of the South China Sea summer monsoon by Luo, Ming, Leung, Yee, Graf, Hans‐F., Herzog, Michael, Zhang, Wei

“…ABSTRACT This article investigates the year‐to‐year variability of the onset of the South China Sea summer monsoon (SCSSM) and the possible influences exerted…”
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Tambora 1815 as a test case for high impact volcanic eruptions: Earth system effects by Raible, Christoph C., Brönnimann, Stefan, Auchmann, Renate, Brohan, Philip, Frölicher, Thomas L., Graf, Hans-F., Jones, Phil, Luterbacher, Jürg, Muthers, Stefan, Neukom, Raphael, Robock, Alan, Self, Stephen, Sudrajat, Adjat, Timmreck, Claudia, Wegmann, Martin

“…The eruption of Tambora (Indonesia) in April 1815 had substantial effects on global climate and led to the ‘Year Without a Summer’ of 1816 in Europe and North…”
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ENSO Forecasts near the Spring Predictability Barrier and Possible Reasons for the Recently Reduced Predictability by Lai, Andy Wang-Chun, Herzog, Michael, Graf, Hans-F.

“…A cross-validated statistical model has been developed to produce hindcasts for the 1980–2016 November–December–January (NDJ; assumed El Niño peak) mean…”
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Enhanced impact of the Aleutian Low on increasing the Central Pacific ENSO in recent decades by Chen, Shangfeng, Chen, Wen, Yu, Bin, Wu, Renguang, Graf, Hans-F., Chen, Lin

“…In this study, we reveal a marked enhanced impact of the early-spring Aleutian Low (AL) on the following winter El Niño and Southern Oscillation (ENSO) after…”
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Modulation of the seasonal footprinting mechanism by the boreal spring Arctic Oscillation by Chen, Shangfeng, Chen, Wen, Yu, Bin, Graf, Hans-F.

“…Previous studies suggest that wintertime North Pacific Oscillation (NPO) is able to force an El Niño event during the following winter via the seasonal…”
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Aerosol size confines climate response to volcanic super-eruptions by Timmreck, Claudia, Graf, Hans-F., Lorenz, Stephan J., Niemeier, Ulrike, Zanchettin, Davide, Matei, Daniela, Jungclaus, Johann H., Crowley, Thomas J.

“…Extremely large volcanic eruptions have been linked to global climate change, biotic turnover, and, for the Younger Toba Tuff (YTT) eruption 74,000 years ago,…”
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East Asian Winter Monsoon Impacts the ENSO-related Teleconnections and North American Seasonal Air Temperature Prediction by Ma, Tianjiao, Chen, Wen, Nath, Debashis, Graf, Hans-F., Wang, Lin, Huangfu, Jingliang

“…El Niño-Southern Oscillation (ENSO) is a key feature for seasonal weather and climate prediction in the extra-tropics since related sea surface temperature…”
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Combined Impacts of PDO and Two Types of La Niña on Climate Anomalies in Europe by Ding, Shuoyi, Chen, Wen, Feng, Juan, Graf, Hans-F.

“…Combined impacts of the Pacific decadal oscillation (PDO) and two types of La Niña on climate anomalies in Europe are studied. Particularly, the conjunction of…”
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Arctic Oscillation response to volcanic eruptions in the IPCC AR4 climate models by Stenchikov, Georgiy, Hamilton, Kevin, Stouffer, Ronald J., Robock, Alan, Ramaswamy, V., Santer, Ben, Graf, Hans-F.

“…Stratospheric sulfate aerosol particles from strong volcanic eruptions produce significant transient cooling of the troposphere and warming of the lower…”
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An Assessment of Recent and Future Temperature Change over the Sichuan Basin, China, Using CMIP5 Climate Models by Bannister, Daniel, Herzog, Michael, Graf, Hans-F., Hosking, J. Scott, Short, C. Alan

“…The Sichuan basin is one of the most densely populated regions of China, making the area particularly vulnerable to the adverse impacts associated with future…”
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Distinct winter patterns of tropical Pacific convection anomaly and the associated extratropical wave trains in the Northern Hemisphere by Ding, Shuoyi, Chen, Wen, Graf, Hans-F., Guo, Yuanyuan, Nath, Debashis

“…In this paper, distinct patterns of boreal winter convection anomalies over the tropical Pacific and associated wave trains in the extratropics are addressed…”
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Synchronous volcanic eruptions and abrupt climate change ∼17.7 ka plausibly linked by stratospheric ozone depletion by McConnell, Joseph R., Burke, Andrea, Dunbar, Nelia W., Köhler, Peter, Thomas, Jennie L., Arienzo, Monica M., Chellman, Nathan J., Maselli, Olivia J., Sigl, Michael, Adkins, Jess F., Baggenstos, Daniel, Burkhart, John F., Brook, Edward J., Buizert, Christo, Cole-Dai, Jihong, Fudge, T. J., Knorr, Gregor, Graf, Hans-F., Grieman, Mackenzie M., Iverson, Nels, McGwire, Kenneth C., Mulvaney, Robert, Paris, Guillaume, Rhodes, Rachael H., Saltzman, Eric S., Severinghaus, Jeffrey P., Steffensen, Jørgen Peder, Taylor, Kendrick C., Winckler, Gisela

“…Glacial-state greenhouse gas concentrations and Southern Hemisphere climate conditions persisted until ∼17.7 ka, when a nearly synchronous acceleration in…”
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Observational constraints on the tropospheric and near-surface winter signature of the Northern Hemisphere stratospheric polar vortex by Graf, Hans-F., Zanchettin, Davide, Timmreck, Claudia, Bittner, Matthias

“…A composite analysis of Northern Hemisphere’s mid-winter tropospheric anomalies under the conditions of strong and weak stratospheric polar vortex was…”
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Possible Linkage Between Winter Extreme Low Temperature Over Western‐Central China and Autumn Sea Ice Loss by Ding, Shuoyi, Wu, Bingyi, Chen, Wen, Graf, Hans‐F., Zhang, Xuanwen

“…Based on reanalysis datasets and sea‐ice sensitivity experiments, this study has pointed out that the autumn sea ice loss in East Siberian‐Chukchi‐Beaufort…”
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Patterns of tropical Pacific convection anomalies and associated extratropical wave trains in AMIP5 by Ding, Shuoyi, Chen, Wen, Graf, Hans-F., Guo, Yuanyuan

“…In this paper, the performance of 18 Coupled Model Intercomparison Project Phase 5 (CMIP5) models forced by observational SSTs in simulating the tropical…”
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