Results 71 to 80 of about 3,043 (210)

A Dynamical Model for the Shallow‐to‐Deep Transition of Amazonian Moist Atmospheric Convection

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract The development of deep convection and the timing of storm convection initiation over land are generally poorly represented by weather and climate models, probably due to the poor representation of the interaction between shallow and deep convection.
Cristian V. Vraciu
wiley   +1 more source

Effects of atmospheric electric fields on detection of ultrahigh-energy cosmic rays

, 2004
We show that atmospheric electric fields may affect the cosmic ray observations in several ways and may lead to an overestimation of the cosmic ray energies. The electric field in thunderclouds can be as high as a few kV/cm. This field can accelerate the
Kusenko, Alexander, Semikoz, Dmitry
core   +1 more source

Evolution of lightning in an isolated hailstorm of moderate size in the tropics [PDF]

, 2007
Evolution of lightning activity in a tropical hailstorm of moderate size that developed in the premonsoon season at Pune (18°32′N, 73°51′E, 559 m above sea level) is studied from the measurements of surface electric field, the Maxwell current and thunder.
Kamra, AK, Pawar, SD
core   +1 more source

Numerical Parameter‐Space Studies of Various Types of Thundercloud Gamma‐Ray Emissions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Until recently, mainly two types of hard radiation were observed in thunderstorms: intensive, short‐lived terrestrial gamma‐ray flashes (TGFs) and weak, long‐lasting gamma‐ray glows (GRGs). The Airborne Lightning Observatory for Fly's Eye GLM Simulator and TGFs (ALOFT, GLM: Geostationary Lightning Mapper) flight campaign revealed additional ...
Ø. Færder, N. Lehtinen, D. Sarria, M. Marisaldi, N. Østgaard, I. Bjørge‐Engeland, A. Mezentsev   +6 more
wiley   +1 more source

Temporal and Spectral Properties of Gamma-Ray Flashes [PDF]

, 2002
The temporal and spectral properties of terrestrial gamma-ray flashes (TGFs) are studied. The delay of low energy photons relative to high energy ones in the gamma-ray variations of the TGFs with high signal to noise ratio has been revealed by an ...
Chang, Fargion, Fishman, Hua Feng, Inan, Lehtinen, Lehtinen, Li, Li, Li, Li, Nemiroff, Taranenko   +12 more
core   +2 more sources

A Climatology of Mesoscale Convective System Hazards in the United States and Their Representation in a Convection‐Permitting Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Mesoscale convective systems (MCSs) are large, organized convective storms that frequently produce flash floods and other severe hazards such as damaging winds, hail, and tornadoes. Developing an observationally based MCS hazard climatology is important for establishing a baseline to evaluate the representation of these events in numerical ...
Wenjun Cui, Kimberly A. Hoogewind, Thomas J. Galarneau Jr.   +2 more
wiley   +1 more source

How do microorganisms reach the stratosphere? [PDF]

, 2005
A number of studies have demonstrated that bacteria and fungi are present in the stratosphere. Since the tropopause is generally regarded as a barrier to the upward movement of particles it is difficult to see how such microorganisms can reach heights ...
Alharbi, S., Wainwright, M., Wickramasinghe, N.C.   +2 more
core   +2 more sources

Machine Learning‐Based Forecasting of Ice Water Path for Storm Detection and Tracking Using Geostationary Infrared and Passive Microwave Data

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a proof of concept for a storm Detection, Delineation, and Tracking (DDT) method based on the vertical integral of condensed water and ice content—namely the Ice Water Path (IWP). Traditional DDT methods rely solely on regularly sampled variables, such as brightness temperatures, which do not directly capture storm ...
Livia J. Leganés, Sai Prasanth, Andrés Navarro, Joe Turk, Gyuwon Lee, Ziad Haddad, Jennie Bukowski, Peter Marinescu, Itinderjot Singh, Susan C. van den Heever, Francisco J. Tapiador   +10 more
wiley   +1 more source

Observations and Modeling of the Longest‐Recorded Delayed Sprite

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Transient luminous events (TLEs), such as sprites, have been investigated via observations and simulations for decades. Recent TLE research has focused on effects leading to the delay of a sprite from its parent lightning flash. Here we investigate a sprite with by far the longest recorded delay to date, a delay of almost a full second (916.6 ±
Y. Yair, C. Haspel, M. Korzets, E. Di‐Gangi, J. Lapierre, O. Chanrion, Y. Hobara, T. Bozóki, J. Mlynarczyk, M. Korman, M. López‐Alegría   +10 more
wiley   +1 more source

Evidences for and the models of self-similar skeletal structures in fusion devices, severe weather phenomena and space [PDF]

, 2005
The paper briefly reviews (i) the evidences for self-similar structures of a skeletal form (namely, tubules and cartwheels, and their simplest combinations), called the Universal Skeletal Structures (USS), observed in the range 10-5 cm - 1023 cm.
Kukushkin, A. B., Rantsev-Kartinov, V. A.   +1 more
core   +1 more source