Aman Gupta

Welcome to my webspace. I am a fifth year Ph.D. student in the Center for Atmosphere Ocean Sciences, at the Courant Institute of Mathematical Sciences, NYU. My advisor is Edwin Gerber.

My research, lying at the intersection of computational mathematics, high performance computing and climate dynamics, focuses on developing metrics to assess Tracer Transport and Stratosphere Dynamics in GCMs on climatological timescales. I use dynamical cores developed at Princeton-GFDL(AM3) and NCAR(CAM5), using a wide range of numerics; The philosophical goal being - to bridge the gap between Modeling, Observations and Theory.

More generally, I am also interested in studying the atmospheres of extra-terrestrial planets and the dynamical properties and turbulent nature of such fluid flows.

My email : agupta [at] cims [dot] nyu [dot] edu

Research

Connecting Stratospheric Circulation and Tracer Transport in GCMs

Reducing tracer transport biases due to numerics among atmospheric dynamical cores & tracer based measurements, and creating tracer transport benchmarks for atmospheric dynamical cores. Connecting Theory, Models and Observations.

Isentropic Circulation in GCMs

Techniques in Dry Isentropic Analysis of Global Circulation in GCMs. Assesing a set of techniques to compute mass transport and TEM in a generalized(Isentropic and Age-based) coordinate system.

Publications & Conferences

My CV

Publications

  • in prep. Gupta, Aman, Edwin P. Gerber, and Peter H. Lauritzen: "Numerical impacts on tracer trans- port: Understanding biases in dynamical cores with the leaky pipe framework.", Quart. J. Roy. Meteor. Soc.

  • in prep. Gupta, Aman, Edwin P. Gerber, and Peter H. Lauritzen: "Numerical impacts on tracer transport: A proposed intercomparison test of Atmospheric General Circulation Models", Quart. J. Roy. Meteor. Soc.

  • in prep. Linz, Marianna, R. Alan Plumb, Edwin P. Gerber, Douglas E. Kinnison, and Aman Gupta: “Stratospheric adiabatic mixing rate derived from the vertical age gradient”

Seminar Talks

  1. 6th Oct '17 : Age of Air : Theory and Modeling - Courant Institute - a pedagodical talk aimed at discussing the theory of age(spectrum), its relation to transport processes and its simulation in atmospheric dynamical cores.
  2. 4th Apr '17 : Relating Stratospheric Circulation in GCMs with Leaky Pipe model of Stratospheric Transport - Courant Institute - Using the Leaky pipe model to study the Steady State behaviour of age in GCMs to quantify mixing and tropical-midlatitude tracer differences in GCMs.
  3. 25th Mar '16 : Stratospheric Circulation and tracer transport - Courant Institute. The big picture discussing the stratospheric dynamics, prediction of Brewer-Dobson Circulation intensification in GCMs, Age of Air from GCMs and transport metrics to detect and resolve model biases in age due to numerics.
  4. 25th Oct '15 : Stratospheric transport of tracers and age of air - Courant Institute. Introducing Stratospheric Age of Air as a Green's function solution to the transport equation and variation of age in various GCMs.

Teaching & Courses

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