output
19962019
most citedCombining Physically-Based Modeling and Deep Learning for Fusing GRACE Satellite Data: Can We Learn from Mismatch?

226 citations

8 papers

physics.geo-ph2019★ 226 cited

Combining Physically-Based Modeling and Deep Learning for Fusing GRACE Satellite Data: Can We Learn from Mismatch?

Alexander Y. Sun, Bridget R. Scanlon, Zizhan Zhang +4

Global hydrological and land surface models are increasingly used for tracking terrestrial total water storage (TWS) dynamics, but the utility of existing models is hampered by con…

physics.data-an2018★ 96 cited

Discovering state-parameter mappings in subsurface models using generative adversarial networks

Alexander Y. Sun

A fundamental problem in geophysical modeling is related to the identification and approximation of causal structures among physical processes. However, resolving the bidirectional…

physics.flu-dyn2017★ 33 cited

Hysteretic behavior of electrical conductivity in packings of particles

Behzad Ghanbarian, Muhammad Sahimi

We address the problem of predicting saturation-dependent electrical conductivity σ in packings of spheres during drainage and imbibition. The effective-medium approximation (EMA)…

physics.geo-ph2016★ 9 cited

Application of Optimal Transport and the Quadratic Wasserstein Metric to Full-Waveform Inversion

Yunan Yang, Björn Engquist, Junzhe Sun +1

Conventional full-waveform inversion (FWI) using the least-squares norm () as a misfit function is known to suffer from cycle skipping. This increases the risk of computing a…

cs.CE2016★ 63 cited

Scale-Dependent Pedotransfer Functions Reliability for Estimating Saturated Hydraulic Conductivity

Behzad Ghanbarian, Vahid Taslimitehrani, Yakov A. Pachepsky

Saturated hydraulic conductivity Ksat is a fundamental characteristic in modeling flow and contaminant transport in soils and sediments. Therefore, many models have been developed…

math.NA2013

Asymptotic-preserving exponential methods for the quantum Boltzmann equation with high-order accuracy

Jingwei Hu, Qin Li, Lorenzo Pareschi

In this paper we develop high-order asymptotic-preserving methods for the spatially inhomogeneous quantum Boltzmann equation. We follow the work in Li and Pareschi, where asymptoti…

math.NA2008★ 4 cited

Fast Computation of Partial Fourier Transforms

Lexing Ying, Sergey Fomel

We introduce two efficient algorithms for computing the partial Fourier transforms in one and two dimensions. Our study is motivated by the wave extrapolation procedure in reflecti…

hep-th1996★ 9 cited

On the Casimir of the group ISL(n,R) and its algebraic decomposition

J. N. Pecina-Cruz

In this paper, an explicit expression for the Casimir operator (or the Casimir invariant) of the inhomogeneous group ISL(n,R) in its enveloping algebra is proposed, which using con…