Results 121 to 130 of about 5,117 (217)

Chaotic discrimination and nonlinear dynamics

open access: yes, 2005
This study examines a particular form of price discrimination, known as chaotic discrimination, which has the following features: sellers quote a common price but, in reality, they engage in secret and apparently unsystematic price discounts.
Gangopadhyay, Partha
core  

Capturing Aleatoric Uncertainty in Climate Models

open access: yesEnvironmetrics, Volume 37, Issue 5, July 2026.
ABSTRACT Internal climate variability arises from the climate system's inherently chaotic dynamics. Quantifying it is essential for climate science, as it enables risk‐based decision‐making and differentiates between externally forced change and internal fluctuations.
Cornelia Gruber   +4 more
wiley   +1 more source

Formation of Shallow Cumulus Patterns Using a Simple Warm Cloud Precipitation Model

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract A simple model based on predator‐prey‐like dynamics using a system of four nonlinear ordinary differential equations is used to simulate the life cycle of shallow cumulus. By coupling this model across a two‐dimensional array and varying the cloud environment, we can simulate three common patterns of self‐aggregation seen in the maritime ...
Michelle K. Kanipe   +2 more
wiley   +1 more source

Aligning Initial Conditions With Long‐Term Model Dynamics to Enhance 4DVar‐Driven Medium‐Range Global Forecasts

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Applying the four‐dimensional variational (4DVar) method in nonlinear systems faces conflicts between a lack of long‐term dynamical information using a short assimilation window and a trap of local minima using a long window. Here, an adjusted analysis approach that incorporates a thought of pseudo‐orbit analysis adjusting into 4DVar was ...
Shujun Zhu   +13 more
wiley   +1 more source

Identifying Energy Balance Drivers of Greenland Ice Sheet Surface Melt Using Causal Discovery

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Greenland Ice Sheet (GrIS) mass loss has accelerated in recent decades, primarily due to enhanced surface melt. Identifying the causal dependencies of surface melt remains challenging with conventional correlations. Using the PCMCI+ ${\text{PCMCI}}^{+}$ causal discovery algorithm applied to CESM2 large‐ensemble simulations and evaluated ...
Ziqi Yin   +7 more
wiley   +1 more source

Volcanic Forcing Amplifies Extreme Wet‐to‐Dry in Pre‐Flood South China Driven by Internal Variability

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Dry‐wet whiplash events profoundly impact society and the environment, yet their attribution remain poorly understood. This study reveals that the unprecedented interannual wet‐to‐dry transition (return period: 979.2 years) in South China's 1962–1963 pre‐flood season is co‐driven by internal variability and volcanic forcing.
Qi Wen   +5 more
wiley   +1 more source

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