Dr. Sandeep Sahany


Positions held

August 2015 Present : Assistant Professor
Centre for Atmospheric Sciences, IIT Delhi

August 2014 August 2015 : Senior Research Scientist
Centre for Climate Research Singapore

February 2014 July 2014 : Research Scientist
Centre for Climate Research Singapore

October 2009 February 2014 : Postdoctoral Researcher
University of California Los Angeles

June 2002 - April 2004 : Software Engineer
Infosys Technologies Limited

Research Interests and Topical Expertise

Selected Publications

J. D. Neelin, Sahany, S., S. Stechmann, and D. Bernstein, 2016: Global warming precipitation accumulation increases above the current-climate cutoff scale. Proc. Nat. Acad. Sci., accepted


J. L. McBride, Sahany, S., M. E. Hassim, C. M. Nguyen, S. Y. Lim, R. Rahmat, and W. K. Cheong, 2015: The 2014 Record Dry Spell at Singapore An Intertropical Convergence Zone (ITCZ)-drought. Bulletin of the American Met. Soc., Vol. 96, 12, DOI: 10.1175/BAMS-D-15-00117.1. preprint


Sahany, S., J. D. Neelin, K. Hales, and R. Neale, 2014: Deep Convective Transition Characteristics in the Community Climate System Model and Changes Under Global Warming. J. Clim., Vol. 27(24), 9214-9232. preprint


Tripati, A. K., Sahany, S., D. Pittmann, R. A. Eagle, J. D. Neelin, J. L. Mitchell, L. Beaufort, 2014: Modern and glacial tropical snowlines controlled by sea surface temperature and atmospheric mixing. Nature Geoscience, Vol. 7, 205-209. Nature Journal link


Sahany, S., J. D. Neelin, K. Hales, and R. Neale, 2012: Temperature-Moisture Dependence of the Deep Convective Transition as a Constraint on Entrainment in Climate Models. J. Atmos. Sci., Vol. 69, 1340-1358. preprint


Sahany, S., and S. K. Mishra, 2011: Effects of Convective Scale Downdrafts on the Rainfall Simulation in NCAR-CAM3. Theoretical and Applied Climatology, Vol. 107, Nos. 3-4, 547-562, doi 10.1007/s00704-011-0504-y. preprint


Mishra, S. K., and Sahany, S., 2011: Effects of Time Step Size on the Simulation of Tropical Climate in NCAR-CAM3. Climate Dynamics, Vol. 37, Nos. 3-4, 689-704, doi 10.1007/s00382-011-0994-4. preprint


Mishra, S. K., and Sahany, S., 2011: Sensitivity of Kelvin Waves and Madden-Julian Oscillation to Convective Downdrafts in the NCAR-CAM3. Atmospheric Science Letters, Vol. 12, No. 3, 281-287, doi 10.1002/asl.334. preprint


Sahany, S., V. Venugopal and R. S. Nanjundiah, 2010: Diurnal Scale Signatures of Monsoon Rainfall Over the Indian Region from TRMM Satellite Observations. Journal of Geophysical Research, Vol. 115, D02103, doi10.1029/2009JD012644. preprint


Sahany, S., and R. S. Nanjundiah, 2008: Impact of Convective Downdrafts on Model Simulations Results from Aqua-planet Integrations. Annales Geophysicae, Vol. 26, Issue 7, 1877-1887. preprint


Selected Presentations

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2015: Constraining Convective Entrainment in Climate Models, AOGS Meeting, Singapore.

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2014: Climate Processes in CMIP5 : Deep Convective Onset Statistics as Process-Oriented Diagnostics for Climate Models, American Meteorological Society (AMS) 94th Annual Meeting, Atlanta, USA.

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2013: Changes to Deep Convection Under Global Warming in the NCAR CCSM, Isaac Held Symposium, 19th Conference on Atmospheric and Oceanic Fluid Dynamics, AMS, Newport, Rhode Island, USA.

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2012: Temperature-Moisture Dependence of the Deep Convective Transition as a Constraint on Entrainment in Climate Models, AOGS Meeting, Singapore.

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2012: Deep Convective Transition in the NCAR CCSM: Present and Future Scenarios, 17th Annual CESM Workshop, Breckenridge, Colorado, USA.

Sahany, S., J. D. Neelin, K. Hales and R. B. Neale, 2012: Temperature-Moisture Dependence of the Deep Convective Transition as a Metric for Intercomparison of Climate Models, American Meteorological Society (AMS) 92nd Annual Meeting, New Orleans, USA.

J. D. Neelin, K. Hales, B. Langenbrunner, J. E. Meyerson, S. Sahany, B. Lintner, R. Neale, O. Peters, C. E. Holloway, B. Tian, C. Chou and S. Stechmann, 2012: Model precipitation uncertainties and constraints on entrainment from convective onset, Workshop on Convection, Water Vapor and Climate, Harvard University, USA.

J. D. Neelin, K. Hales, B. Langenbrunner, J. E. Meyerson, S. Sahany, B. Lintner, R. Neale, O. Peters, C. E. Holloway, B. Tian, C. Chou, J. McWilliams, A. Bracco, H. Luo, S. Stechmann, 2012: Tropical rainfall challenges in climate modeling---problems and progress, Workshop on the Physics of Climate Models, Caltech, Pasadena, USA.

J. D. Neelin, S. Sahany, K. Hales, R. Neale, B. Langenbrunner, J. E. Meyerson, 2011: The onset of tropical deep convection: observational metrics for climate models and the role of entrainment, American Geophysical Union (AGU) Fall Meeting, San Francisco, USA.

J. D. Neelin, K. Hales, O. Peters, B. Lintner, B. Tian, C. Holloway, R. Neale, H. Hsu, J. Tribbia,S. Sahany, 2010: Precipitation and humidity relationships in observations and models, Atmospheric Model Working Group Meeting, NCAR, Boulder, USA.

Teaching

Jan - May, 2016
ASL410: Numerical Simulation of Atmospheric and Oceanic Phenomena   (Jointly with Dr. Saroj Kanta Mishra)