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Recently it was shown that self-organized criticality is an important ingredient of the dynamics of cumulus clouds (Physical Review E, 103(5), p.052106, 2021). Here we introduce a new algorithm to simulate cumulus clouds in two-dimensional…

Statistical Mechanics · Physics 2022-12-07 J. Cheraghalizadeh , M. Luković , M. N. Najafi

The most recent concern of all people on Earth is the increase in the concentration of greenhouse gas in the atmosphere. The concentration of these gases has risen rapidly over the last century and if the trend continues it can cause many…

Machine Learning · Computer Science 2022-11-16 Samveg Shah , Shubham Thakar , Kashish Jain , Bhavya Shah , Sudhir Dhage

Detecting and identifying objects in satellite images is a very challenging task: objects of interest are often very small and features can be difficult to recognize even using very high resolution imagery. For most applications, this…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Damien Grosgeorge , Maxime Arbelot , Alex Goupilleau , Tugdual Ceillier , Renaud Allioux

A numerical framework is developed to model contrail formation in the near-field exhaust of aircraft engines, resolving non-equilibrium phase transitions in compressible, multi-component, non-ideal fluid flows. The approach combines…

Fluid Dynamics · Physics 2025-04-30 Katharina Tegethoff , Andrew P. S. Wheeler

We present new deep near-infrared images of dark clouds in the Perseus molecular complex. These images show beautiful extended emission which we model as scattered ambient starlight and name ``cloudshine''. The brightness and color…

Astrophysics · Physics 2009-11-13 Jonathan B. Foster , Alyssa A. Goodman

Owing to their wavelengths dependent absorption and scattering properties, clouds have a strong impact on the climate of planetary atmospheres. Especially, the potential greenhouse effect of CO2 ice clouds in the atmospheres of terrestrial…

Earth and Planetary Astrophysics · Physics 2015-06-16 D. Kitzmann , A. B. C. Patzer , H. Rauer

Directional detection of nuclear recoils is broadly desirable in nuclear and particle physics. At low recoil energies, this capability may be used to confirm the cosmological origin of a dark matter signal, to penetrate the so-called…

Instrumentation and Detectors · Physics 2021-10-13 Majd Ghrear , Sven E. Vahsen , Cosmin Deaconu

The interaction of aerosol-cloud-precipitation has an important impact on the global climate. The understanding of this issue is related to the uncertainty of climate change prediction. The traditional indirect effect of aerosols suggests…

Atmospheric and Oceanic Physics · Physics 2019-02-05 Chongxing Fan , Maiqi Ding , Peipei Wu , Yaqi Fan

Climate change has been a common interest and the forefront of crucial political discussion and decision-making for many years. Shallow clouds play a significant role in understanding the Earth's climate, but they are challenging to…

Image and Video Processing · Electrical Eng. & Systems 2021-07-13 Tashin Ahmed , Noor Hossain Nuri Sabab

Prediction of power outages caused by convective storms which are highly localised in space and time is of crucial importance to power grid operators. We propose a new machine learning approach to predict the damage caused by storms. This…

Signal Processing · Electrical Eng. & Systems 2019-07-03 Roope Tervo , Joonas Karjalainen , Alexander Jung

Methane is a potent greenhouse gas, responsible for roughly 30% of warming since pre-industrial times. A small number of large point sources account for a disproportionate share of emissions, creating an opportunity for substantial…

Air curtains are commonly used as separation barriers to reduce exchange flows through an open-door of a building.Here, we investigated the effectiveness of an air curtain to prevent the transport of contaminants by a person walking along a…

Fluid Dynamics · Physics 2020-09-15 Narsing K Jha , D. Frank , P. F. Linden

The road freight sector is responsible for a large and growing share of greenhouse gas emissions, but reliable data on the amount of freight that is moved on roads in many parts of the world are scarce. Many low- and middle-income countries…

Computers and Society · Computer Science 2019-07-18 Lynn H. Kaack , George H. Chen , M. Granger Morgan

Reliable 4D aircraft trajectory prediction, whether in a real-time setting or for analysis of counterfactuals, is important to the efficiency of the aviation system. Toward this end, we first propose a highly generalizable efficient…

Machine Learning · Computer Science 2019-01-01 Yulin Liu , Mark Hansen

The effective observation time of Imaging Air Cherenkov Telescopes (IACTs) plays an important role in the detection of gamma-ray sources, especially when the expected flux is low. This time is strongly limited by the atmospheric conditions.…

Instrumentation and Methods for Astrophysics · Physics 2020-09-29 Dorota Sobczyńska , Katarzyna Adamczyk , Julian Sitarek , Michal Szanecki

Methane ($CH_4$) is a potent anthropogenic greenhouse gas, contributing 86 times more to global warming than Carbon Dioxide ($CO_2$) over 20 years, and it also acts as an air pollutant. Given its high radiative forcing potential and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Enno Tiemann , Shanyu Zhou , Alexander Kläser , Konrad Heidler , Rochelle Schneider , Xiao Xiang Zhu

We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail. Our main result…

Astrophysics of Galaxies · Physics 2023-03-15 Kanta Kitajima , Shu-ichiro Inutsuka

Directional detection is a promising Dark Matter search strategy. Even though it could accommodate to a sizeable background contamination, electron/recoil discrimination remains a key and challenging issue as for direction-insensitive…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 J. Billard , F. Mayet , D. Santos

A tensor provides a concise way to codify the interdependence of complex data. Treating a tensor as a d-way array, each entry records the interaction between the different indices. Clustering provides a way to parse the complexity of the…

Machine Learning · Computer Science 2020-05-26 Derek DeSantis , Phillip J. Wolfram , Katrina Bennett , Boian Alexandrov

The integration of fine-scale multispectral imagery with deep learning models has revolutionized land use and land cover (LULC) classification. However, the atmospheric effects present in Top-of-Atmosphere sensor measured Digital Number…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Soham Mukherjee , Yash Dixit , Naman Srivastava , Joel D Joy , Rohan Olikara , Koesha Sinha , Swarup E , Rakshit Ramesh