The Nansen-Zhu International Research Centre: Beijing, China Vision To become an internationally acknowledged climate research and training centre with emphasis on tropical and highlatitude regions, and the interactions between these regions, for past, present and future climate Partners; Institute of Atmospheric Physics/ Chinese Academy of Science Nansen Environmental and Remote Sensing Center Peking University University of Bergen Bjerknes Centre for Climate Research Nanjing University Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn
Nansen-Zhu Centre: Research Themes Reconstruction of past climate Melting of glaciers Decadal time-scale climate predictability and teleconnection Air quality observations and modelling Terrestrial and oceanic uptake of carbon dioxide Data assimilation and operational oceanography Environmental and climate observations from space Development of Earth System Model Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn
WWW.BJERKNES.UIB.NO How are the Arctic and Atlantic linked with Asian climates? Past and future perspectives. Eystein Jansen Professor / Director
Bjerknes Centre for Climate Research: A national centre of excellence 2003-2012 New government funding 2010-2022 Climate dynamics Climate modeling and scenarios - global and regional Paleoclimates Carbon cycle and biogeochemistry (modeling and observations) Approx. 100 person-years, 21 nations in staff Largest climate research centre in the Nordic countries Co-ordinates one of five national research schools (2009-2016) Deeply involved in IPCC AR4, only centre in the Nordic countries One of 4 European Centres who delivered global scenarios. Similar role in IPCC AR5 Approx 100 international peer review papers/year, 15 Nature/Science papers in the last 5 years
Key International partnerships Nansen-Zhu Centre, Beijing: IAP-Chinese Academy of Sciences + Peking and Nanjing Univ. example: DecCen project, Summer schools, Workshops, PhD-student exchanges Univ. Washington and MIT strategic partnership programme South Asia: India, Bangladesh, Vietnam - Regional modelling of future climates NCAR USA and MPI Hamburg - Regional modeling
NOAA 2010 - State of the Climate
Southern Flooding and Northern Drought Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn Courtesy of Sohu web news/t. Zhou (IAP)
Change in Observed Precipitation: 1951-2000 Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn Courtesy of T. Zhou
Major Rivers in China are oriented East-West. Challege: Meridional shift in Precipitation Yellow River Yangtze River Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn
Changes in precipitation, IPCC DJF JJA Precipitation change (percent) Number of models showing more rain South Asia: Dryer winters, wetter summers, large uncertainties!
Long term trends in East Asia Summer Monsoon (EASM) Weakening: Less northward extension during the last 50 years. Possible explanations: Warmer ocean less land-sea thermal contrast in summer? Aerosols / pollutions, colder land areas? Teleconnections (e.g. impacts of a warmer Indian ocean or a warmer Atlantic)? Collaboration with IAP-CAS+PKU to investigate and identify regional and remote causes for the variations in the EASM and reduce level of uncertainty for future predictions
The North Atlantic Oscillation (NAO) the leading variability mode at high northern latitudes Positive NAO Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn Negative NAO
Correlation between JFM NAO and T500-200Pa Early April Late April Middle May Late May Xin et al. 2006 J. Climate Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn From T. Zhou, IAP
The NAULEA teleconnection pattern NAULEA is a five-core teleconnection pattern One-point Correlation Z250 ( after Wallace et al. 1981) NAULEA works as a bridge to connect climate of North Atlantic and circulation changes over East Asia Base point at (65ºN,70ºE) Nansen-Zhu International Research Centre, Beijing http://nzc.iap.ac.cn NAULEA: North Atlantic UraL East Asia (40ºN,97.5ºE) (Li et al. 2008, J. Climate) From T. Zhou, IAP
AMO
Otterå et al. 2010, Nature Geoscience
Otterå et al. 2010, Nature Geoscience
AMO «Metronome» driven by solar and volcanic variations together with influence from the North Atlantic ocean circulation Recent upswing driven by greenhouse gases Warm Atlantic influence east Asian climate: Mild East Asia winter More rainfall in Yangtze River Intensified summer rainfall in southern, coastal China
Reconstructed monsoon variability based on tree rings; uncertainty and spatial coverage Asian Monsoon Failure and Megadrought During the Last Millennium (Cook et al, Science 23 April 2010).
Sediment coring in Himalayan and Tibetan mountain glaciers In DecCen, lake coring, data collection and analysis are used to explore EA climate variability and teleconnection during Holocene with focus on last millennium NASA
Lake coring 2009 to reconstruct monsoon variability over the past millennia (IAP, Inst Tibetan Plateau Res/CAS, BCCR)
Abrupt events in glacial Atlantic influenced via Indian Ocean cooling Subm. Science
Summer school 2010 - Glaciers and climate change Obergurgl Austria, DecCen/BCCR/IAP/Univ. Innsbruck June 25, Ben Marzeion