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Coronal mass ejections (CMEs) are primary drivers of space weather and studying their evolution in the inner heliosphere is vital to prepare for a timely response. Solar wind streams, acting as background, influence their propagation in the…

太阳与恒星天体物理 · 物理学 2023-10-30 Prateek Mayank , Bhargav Vaidya , Wageesh Mishra , D. Chakrabarty

The planning and operation of renewable energy, especially wind power, depend crucially on accurate, timely, and high-resolution weather information. Coarse-grid global numerical weather forecasts are typically downscaled to meet these…

Potential analyses identify possible locations for renewable energy installations, such as as wind turbines and photovoltaic arrays. The results of previous potential studies, however, are not consistent due to different assumptions,…

最优化与控制 · 数学 2022-04-06 Stanley Risch , Rachel Maier , Junsong Du , Noah Pflugradt , Peter Stenzel , Leander Kotzur , Detlef Stolten

Bathed in intense ionizing radiation, close-in gaseous planets undergo hydrodynamic atmospheric escape, which ejects the upper extent of their atmospheres into the interplanetary medium. Ultraviolet detections of escaping gas around…

地球与行星天体物理 · 物理学 2019-03-20 John R. McCann , Ruth A. Murray-Clay , Kaitlin Kratter , Mark R. Krumholz

In automated driving, object detection is crucial for perceiving the environment. Although deep learning-based detectors offer high performance, their black-box nature complicates safety assurance. We propose a novel methodology to analyze…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Anton Kuznietsov , Dirk Schweickard , Steven Peters

Stellar magnetism, explorable via polarimetry, is a crucial driver of activity, ionization, photodissociation, chemistry and winds in stellar environments. Thus it has an important impact on the atmospheres and magnetospheres of surrounding…

太阳与恒星天体物理 · 物理学 2015-06-22 T. Lüftinger , M. Güdel , C. P. Johnstone

Wind farm design primarily depends on the variability of the wind turbine wake flows to the atmospheric wind conditions, and the interaction between wakes. Physics-based models that capture the wake flow-field with high-fidelity are…

机器学习 · 计算机科学 2021-11-17 S. Ashwin Renganathan , Romit Maulik , Stefano Letizia , Giacomo Valerio Iungo

The study of droplet generation in wind tunnels in conducting icing experiments is of great importance in determining ice formation on structures or surfaces, where parameters such as Liquid Water Content (LWC) and Median Volumetric…

系统与控制 · 电气工程与系统科学 2024-06-14 César Hernández-Hernández , Thomas Chevet , Rihab el Houda Thabet , Nicolas Langlois

Forecasting a particular variable can depend upon temporal or spatial scale. Temporal variations that indicate variations with time, reflect the stochasticity present in the variable. Spatial variation usually are dominant in climatology…

信号处理 · 电气工程与系统科学 2020-09-07 Harsh S. Dhiman , Dipankar Deb

The state of the art for physical hazard prediction from weather and climate requires expensive km-scale numerical simulations driven by coarser resolution global inputs. Here, a generative diffusion architecture is explored for downscaling…

Astroparticle physics and cosmology allow us to scan the universe through multiple messengers. It is the combination of these probes that improves our understanding of the universe, both in its composition and its dynamics. Unlike other…

天体物理仪器与方法 · 物理学 2015-06-19 K. Louedec

This paper describes the extensive Wind Tunnel (WT) linear cascade testing campaign carried out on a constant section turbine blade developed for low subsonic applications. Comprehensive experimental program was designed to determine the…

流体动力学 · 物理学 2024-07-17 Sharath Sathish

Urban microclimate, encompassing wind and temperature fields shaped by building geometry, significantly impacts energy consumption, pedestrian winds, pollutant dispersion, urban heat island, and public health. Accurately predicting…

流体动力学 · 物理学 2026-05-21 Shaoxiang Qin , Theodore Potsis , Dongxue Zhan , Xue Liu , Ted Stahopoulos , Liangzhu Leon Wang

A physical model is proposed for the estimation of the foam impact on the variation of the effective drag coefficient, C_d, with reference to the wind speed U10 in stormy and hurricane conditions. In the present model C_d is approximated by…

大气与海洋物理 · 物理学 2014-10-07 Ephim Golbraikh , Yuri M. Shtemler

In this work, we present an efficient optic flow algorithm for the extraction of vertically resolved 3D atmospheric motion vector (AMV) fields from incomplete hyperspectral image data measures by infrared sounders. The model at the heart of…

计算机视觉与模式识别 · 计算机科学 2023-10-26 P. Héas , O. Hautecoeur , R. Borde

Observations of the Sun in the visible spectral range belong to standard measurements obtained by instruments both on the ground and in the space. Nowadays, both nearly continuous full-disc observations with medium resolution and dedicated…

太阳与恒星天体物理 · 物理学 2020-06-30 Michal Švanda , Jan Jurčák , David Korda , Jana Kašparová

Optical turbulence, driven by fluctuations of the atmospheric refractive index, poses a significant challenge to ground-based optical systems, as it distorts the propagation of light. This degradation affects both astronomical observations…

天体物理仪器与方法 · 物理学 2026-03-26 Mary Joe Medlej , Rahul Srinivasan , Simon Prunet , Aziz Ziad , Christophe Giordano

The development of safe and reliable autonomous unmanned aerial vehicles relies on the ability of the system to recognise and adapt to changes in the local environment based on sensor inputs. State-of-the-art local tracking and trajectory…

机器人学 · 计算机科学 2025-02-12 Andrea Albanese , Yanran Wang , Davide Brunelli , David Boyle

High-fidelity simulated astronomical images are an important tool in developing and measuring the performance of image-processing algorithms, particularly for high precision measurements of cosmic shear -- correlated distortions of images…

Astronomical Site testing data plays a vital role in the simulation, design, evaluation and operation of adaptive optics systems for large telescope. We present the example of TMT and its first light facilitiy adaptive optics system…