A5080187704- Solar and Space Plasma Dynamics
- Elasticity and Material Modeling
- Advanced Numerical Methods in Computational Mathematics
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Hydrocarbon exploration and reservoir analysis
- Numerical Methods and Algorithms
- Reservoir Engineering and Simulation Methods
- Seismic Imaging and Inversion Techniques
- Stellar, planetary, and galactic studies
- Meteorological Phenomena and Simulations
- Climate variability and models
- Economic Growth and Productivity
- Health, Environment, Cognitive Aging
- Solar Radiation and Photovoltaics
- Distributed and Parallel Computing Systems
- Gender, Labor, and Family Dynamics
- Ionosphere and magnetosphere dynamics
Goddard Space Flight Center
2022-2023
University of Colorado Boulder
2019
Deriving the strength and direction of three-dimensional (3D) magnetic field in solar atmosphere is fundamental for understanding its dynamics. Volume information on mostly relies coupling 3D reconstruction methods with photospheric and/or chromospheric surface vector fields. Infrared coronal polarimetry could provide additional to better constrain reconstructions. However, combining such data challenging, e.g., because optical-thinness corona lack limitations stereoscopic polarimetry. To...
We present a novel magnetohydrostatic numerical model that solves directly for the force-balanced magnetic field in solar corona. This is constructed with Radial Basis Function Finite Differences (RBF-FD), specifically 3D polyharmonic splines plus polynomials, as core discretization. set of PDEs particularly difficult to solve since limit forcing going zero it becomes ill-posed multitude solutions. For equal there are no numerically tractable finite forcing, ability converge onto physically...
Whitepaper #062 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional research/operations/research loop; ground-based missions/projects; solar physics; […]
Abstract We present a new 3D magnetohydrostatic (MHS) direct elliptic solver for extrapolating the coronal magnetic field from photospheric boundary conditions in manner consistent with an assumed plasma distribution. use it to study uniqueness of reconstructed as function how significant forcing is on force balance field. To this end, we consider analytic MHS model ground truth. The uses two free parameters decompose current into parts: magnetic-field-aligned component and cross-field...
As Physics-Informed Neural Networks and other methods for full-vector-field construction or analysis become more prominent, a need has developed large set of simulated active regions training, validation testing purposes. We use state-of-the-art magnetohydrostatic extrapolation method to develop public dataset over five thousand data cubes based on the Spaceweather HMI Active Region Patch (SHARP) library region magnetogram images. Each cube resolves magnetic field vector plasma forcing at...
Gender diversity in the field of heliophysics is severely lacking, to detriment all members field.This status due part insufficient institutional support and inclusion practices for transgender nonbinary people other gender minorities.In this white paper, we describe current state profession through a collective lens trans heliophysicists.We then make recommendations on ways build resources, opportunities, that seek welcome, uplift, retain gender-expansive persons our field.1. We acknowledge...
The accessibility of the activities and spaces that heliophysics occupies is connected to our ability maintain a diverse inclusive group scientists.Accessibility often overlooked in discussions around promoting diversity, equity, inclusion.There are very few statistics show how accessible field is, but larger studies all STEM students percentage who identify as disabled decreases with increasing education level, face financial burden their training compared peers.We recommend assessing...
Whitepaper #415 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: infrastructure/workforce/other programmatic. Additional research tools infrastructure.
Whitepaper #292 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: infrastructure/workforce/other programmatic. Additional state of profession; research tools infrastructure.