Results 201 to 210 of about 1,033,242 (304)

Gradient‐Free Online Learning of Subgrid‐Scale Dynamics With Neural Emulators

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract In this paper, we propose a generic algorithm to train machine learning‐based subgrid parametrizations online, that is, with a posteriori loss functions, but for non‐differentiable numerical solvers. The proposed approach leverages a neural emulator to approximate the reduced state‐space solver, which is then used to allow gradient propagation
H. Frezat, R. Fablet, G. Balarac, J. Le Sommer   +3 more
wiley   +1 more source

A Review of Phytoplankton Sinking Rates: Mechanisms, Methodologies, and Biogeochemical Implications. [PDF]

Biology (Basel)
Zhu J, Cheng J, Zeng J, Zhang W, Liu C, Effiong KS, Hao Q.   +6 more
europepmc   +1 more source

A Glacial Fjord Box Model: Derivation and Representation of Glacially Modified Water

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Fjords are a crucial connection between the Greenland Ice Sheet and the ocean, but remain unrepresented at the scale of many Earth System Models. To parameterize mixing within them, we modify a two‐layer estuary box model to include buoyant plumes, which are common features of glacial fjords.
Theresa J. Cordero, Frank O. Bryan, Julie L. McClean, Sarah T. Gille, Gustavo Marques   +4 more
wiley   +1 more source

Modeling and simulation of optical wireless communication channels in IoUT considering water types turbulence and transmitter selection. [PDF]

Sci Rep
Zayed MM, Shokair M.
europepmc   +1 more source

The Ceiling Height of Wildland Fire Plumes in Quasi‐Steady Stratified and Sheared Boundary Layers

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Radar observations from a prescribed fire experiment reveal a large‐scale, billow‐like vorticity structure associated with the plume head near the onset of plume bending. This bending limits the vertical extent of the plume and defines the characteristic plume ceiling height.
Jie Sun, Kevin Speer, Bryan Quaife, Ming Cai, David Schvartzman   +4 more
wiley   +1 more source

Modulation of biofilm growth by shear and fluctuations in turbulent environments. [PDF]

Sci Rep
Pizzi F, Peters F, Sorribes E, Marín-Beltrán I, Romera-Castillo C, Grau J, Rahmani M, Jofre L, Capuano F.   +8 more
europepmc   +1 more source

Formulation and Implementation of a Dynamic Roughness Length for Improved Surface Wind Speeds in WRF

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Accurate near‐surface winds from the Weather Research and Forecasting (WRF) model are essential for wind‐energy applications, yet persistent biases remain that depend on terrain, season, and land cover. This study develops and evaluates an observation‐informed, time‐varying aerodynamic roughness length for WRF. The roughness length is inferred
S. Srivastava, K. R. Schell
wiley   +1 more source

Incorporating long-range dependence and fractal features in turbulence spectra. [PDF]

Sci Rep
Cheng S, Jetti YS, Neary VS, Ostoja-Starzewski M, Chamorro LP.   +4 more
europepmc   +1 more source

Evaluating Fire Indices for Fire Ignition and Spread Rate in the Western United States

Earth's Future, Volume 14, Issue 8, August 2026.
Abstract Wildfires are complex events that are challenging to model. Researchers and land managers often rely on fire indices as a proxy of fire risk in operational forecasts and future projections. However, in the scientific literature, the choice of which fire index to use is often arbitrary and not tied to specific fire behaviors. Here, we provide a
B. Wang, A. P. Williams, D. Entekhabi, G. D. Madakumbura, D. Lettenmaier, J. K. Balch, S. Rahimi, L. Huang, A. Hall   +8 more
wiley   +1 more source

<i>Innovation</i> focus in 2025. [PDF]

Innovation (Camb)
Innovation Editorial Team, Chinaeditorial-office@the-innovation.org.   +1 more
europepmc   +1 more source