Beena Balan Sarojini

Beena Balan Sarojini

I'm a post-doctoral Research Scientist at the National Centre for Atmospheric Science (NCAS)- Climate Division, which is part of the Department of Meteorology at the University of Reading and the Walker Institute for Climate System Research. My present position is funded by the Department of Geography and Environmental Sciences and NCAS-Climate through the IMPETUS project . My previous position was funded by Met Office Hadley Centre and NCAS-Climate through the PAGODA project.

Research Interests

I am interested in studying aspects of the recent past, present and future climate, using climate models/measurements, that have global and regional impacts. Water-related extreme climate events increasingly disrupt our lives and livelihoods. Currently I investigate how soil moisture simulations can be improved to benefit drought predictions over the UK, using a suite of land surface models. Analysis of climate projections using historic and natural forcings can provide useful information about the origin of changes in a climate variable. In my previous project I analysed such projections of changes in the water cycle using CMIP5 model data and compared those to different gridded observational datasets to infer global and regional changes in precipitation due to human influence/natural factors. Prior to this, my research focus was mainly on the role of oceans in climate and its variability. The Atlantic Meridional Overturning Circulation (AMOC) is a major component of the climate system due to its associated northward heat transport. I analysed output from global coupled climate models to understand the physical causes of the variability of the AMOC and also evaluated it using the recent AMOC measurements. For my PhD research, I investigated how day-to-day weather fluctuations affected large-scale ocean circulations such as AMOC, Antarctic Circumpolar Current, using a hybrid coupled climate model.

Peer-reviewed Publications

B. Balan Sarojini, P.A. Stott, E. Black. (June, 2016): Detection and attribution of human influence on regional precipitation. Nature Climate Change doi:10.1038/NCLIMATE2976. Read here a blog post on the article.

Hegerl G.C., E. Black, R.P. Allan, W.J. Ingram, D. Polson, K.E. Trenberth, R.S. Chadwick, P.A. Arkin, B. Balan Sarojini, A. Becker, A. Dai, P. Durack, D. Easterling, H. Fowler, E. Kendon, G.J. Huffman, C. Liu, R. Marsh, M. New, T.J. Osborn, N. Skliris, P.A. Stott, P.L. Vidale, S.E. Wijffels, L.J. Wilcox, K. Willett, X. Zhang. (July, 2015): Challenges in quantifying changes in the global water cycle. Bull. Am. Meteorol. Soc. doi:10.1175/BAMS-D-13-00212.1.

B. Balan Sarojini (November, 2013): Impacts of changes in the hydrological cycle. Weather, 68:292, DOI: 10.1002/wea.2172

Bindoff, N.L., P.A. Stott, K.M. AchutaRao, M.R. Allen, N. Gillett, D. Gutzler, K. Hansingo, G. Hegerl, Y. Hu, S. Jain, I.I. Mokhov, J. Overland, J. Perlwitz, R. Sebbari and X. Zhang and contributing authors (including B. Balan Sarojini ), (September, 2013): Detection and Attribution of Climate Change: from Global to Regional. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 867-952.

D. Polson, G. C. Hegerl, R. P. Allan and B. Balan Sarojini (September, 2013) Have greenhouse gases intensified the contrast between wet and dry regions? GRL, Vol 40, DOI: 10.1002/grl.50923

B. Balan Sarojini, P. A. Stott, E. Black and D. Polson (November, 2012) Fingerprints of Changes in Annual and Seasonal Precipitation from CMIP5 Models over Land and Ocean. GRL , Vol 39, L21706, DOI: 10.1029/2012GL053373 . See also the Science Highlights of this article.

B. Balan Sarojini, J. M. Gregory, R. Tailleux, G. Bigg, A. Blaker, D. Cameron, N. Edwards, A. Megann, L. Shaffrey, B. Sinha (July, 2011) High frequency variability of the Atlantic meridional overturning circulation. Ocean Science, Vol 7, 471-486, DOI: 10.5194/os-7-471-2011

B. S. Beena and J. S. von Storch (April, 2009) Effect of daily surface flux anomalies on the time-mean oceanic circulation. Climate Dynamics, Vol. 33, No.1, 1-18, DOI: 10.1007/s00382-009-0575-y

B. S. Beena (November, 2006) Effect of daily surface flux anomalies on the time-mean oceanic circulation. Reports on Earth System Science, Max Planck Institute for Meteorology, Germany Vol. 31 (Ph.D. thesis), ISSN 1614-1199

J.S. von Storch, J.P. Montavez and B. S. Beena (December, 2005) EMAD: An Empirical Model of Air-Sea Fluxes. Meteorologische Zeitschrift, Vol. 14, No.6, 755-762, DOI: 10.1127/0941-2948/2005/0080

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