Soumyaranjan Dash

Brinson Postdoctoral Fellow

About Me

Focus: Spectropolarimetry & MHD
Affiliation: NSO
Location: Pukalani, HI

Welcome! I am a Solar Physicist and Brinson Postdoctoral Research Associate at the National Solar Observatory (NSO), discovering space weather drivers through high-resolution spectropolarimetry and data-driven pipelines. My research bridges solar coronal magnetic field diagnostics and computational heliospheric modeling, currently focusing on infrared DKIST datasets.

Previously, I was a Postdoctoral Fellow at the University of Hawaii's Institute for Astronomy, working on solar magnetic field evolution with data-driven numerical models. I hold a Ph.D. from CESSI, IISER Kolkata, and a Master's in Theoretical Physics. Beyond theoretical work, I develop open-source visualization tools, capture stories through photography, and explore world cultures.

Recent Updates

September 2026 talk

Two abstracts at the 57th meeting of the AAS Solar Physics Division: Diagnosing Coronal Magnetic Field Structure and Thermodynamics with DKIST/Cryo-NIRSP and Forward Modeling, and An Analysis of the Dependence on Inputs on Solar Polar Field Evolution with Marc DeRosa, Lisa Upton, Sushant Mahajan and Todd Hoeksema.

August 2026 software

Continued development of SFT2D, a surface flux transport framework for solar and stellar surface magnetic field evolution.

August 2026 software

Expanded the CryoNIRSP Viewer dashboard for browsing public DKIST Cryo-NIRSP datasets.

May 2026 software

Released the CryoNIRSP Viewer for real-time interaction with multidimensional DKIST spectral data profiles.

December 2025 talk

The Sun's Corona has a Memory which allows for Predictions of Heliospheric Activity presented at AGU Fall Meeting 2025, with Shaonwita Pal, Soumitra Hazra and Dibyendu Nandy.

Featured Projects

CryoNIRSP Viewer

An open-source, web-based dataset explorer for real-time interaction with and rendering of multidimensional DKIST spectral data profiles.

SFT2D Framework

An advanced 2D Surface Flux Transport model simulating the continuous advection and magnetic field evolution across the solar surface.

SFT-1D Model

A lightweight 1D numerical solver demonstrating magnetic flux transport via advection, diffusion, and flux cancellation.

Technical Toolkit

Domain Expertise

Spectropolarimetry Solar Corona Solar Dynamo MHD Modeling SFT Heliosphere

Languages & Frameworks

Python (SunPy, PyTorch) C++, FORTRAN (OpenMP, MPI) JavaScript IDL ParaView, ViSIT, TecPlot

Selected Publications

  • Ensemble Kalman Filter Data Assimilation into the Surface Flux Transport Model to Infer Surface Flows: An Observing System Simulation Experiment
    The Astrophysical Journal (2024)
    View Paper
  • Flux Erosion of Magnetic Clouds by Reconnection With the Sun's Open Flux
    Geophysical Research Letters (2020)
    View Paper
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