Results 1 to 10 of about 1,074,642 (303)
Tree Canopies Influence Ground Level Atmospheric Electrical and Biogeochemical Variability
Frontiers in Earth Science, 2021 Static electric fields in the atmosphere are increasingly recognized as interacting with various organisms over several levels of biological organization.
Ellard R. Hunting +2 more
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A Study of the Effects of Rain, Snow and Hail on the Atmospheric Electric Field near Ground
Atmosphere, 2021 The purpose of the present study is to investigate the impact of rain, snow and hail on potential gradient (PG), as observed in a period of ten years in Xanthi, northern Greece. An anticorrelation between PG and rainfall was observed for rain events that
Athanasios Karagioras +1 more
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Measuring Global Signals in the Potential Gradient at High Latitude Sites
Frontiers in Earth Science, 2021 Previous research has shown that the study of the global electrical circuit can be relevant to climate change studies, and this can be done through measurements of the potential gradient near the surface in fair weather conditions.
José Tacza +8 more
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Atmosphere, 2022 Ground-based measurements of the electric field from a station located in the arid Negev region of southern Israel have been conducted continuously since 2013.
Roy Yaniv, Yoav Yair
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The gradient flow of infinity-harmonic potentials
Advances in Mathematics, 2021 We study the streamlines of $\infty$-harmonic functions in planar convex rings. We include convex polygons. The points where streamlines can meet are characterized: they lie on certain curves. The gradient has constant norm along streamlines outside the set of meeting points, the infinity-ridge.
Lindgren, Erik, Lindqvist, Peter
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Historical data of atmospheric electric field observations in Japan
Geoscience Data Journal, 2023 The Kakioka Magnetic Observatory (KMO) of the Japan Meteorological Agency (JMA) made atmospheric electric field observations at Kakioka and Memambetsu beginning in 1929 and 1949, respectively, and ending in February 2021 and December 2010, respectively ...
Shingo Nagamachi +2 more
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Calculus on MDPs: Potential Shaping as a Gradient
CoRR, 2022 In reinforcement learning, different reward functions can be equivalent in terms of the optimal policies they induce. A particularly well-known and important example is potential shaping, a class of functions that can be added to any reward function without changing the optimal policy set under arbitrary transition dynamics.
Erik Jenner, Herke van Hoof, Adam Gleave
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The Influence of the Atmospheric Electric Field on Soil Redox Potential
Oxygen, 2023 Atmospheric electric fields (AEFs) have recently been proposed to link to biogeochemical processes below the Earth’s surface by means of a charge separation.
Konstantinos Kourtidis, Michel Vorenhout
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Journal of Applied Mathematics and Physics, 2020 Motivated by the special theory of gradient elasticity (GradEla), a proposal is advanced for extending it to construct gradient models for interatomic potentials, commonly used in atomistic simulations. Our focus is on London’s quantum mechanical potential which is an analytical expression valid until a certain characteristic distance where “attractive”
Parisis, K. +5 more
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Space Weather, 2022 High‐energetic charged particles, such as solar protons, and phenomena such as Forbush decreases are eligible candidates to affect the global electric circuit.
J. Tacza +6 more
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