Results 51 to 60 of about 2,511,850 (187)

A New Method for Probabilistic Spatiotemporal Forecasts of Solar Soft X‐Ray “S‐Class” (>X10) Superflares

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract Solar superflares of S‐class (>X10 in soft X‐rays) pose extreme space weather hazards, yet their prediction remains a fundamental challenge owing to their rapid and transient natures and the limitations of conventional event‐based forecasts. We introduce for the first time, a probabilistic spatiotemporal framework designed to identify extended
V. M. Velasco Herrera   +12 more
wiley   +1 more source

Bibliografía sobre organismos, ambientes y procesos marinos y atmosféricos en Bahía Culebra, Pacífico norte, Guanacaste, Costa Rica (1922-2012)

open access: yesRevista de Biología Tropical, 2012
Bahía Culebra se locoaliza en la parte norte de la costa Pacífica de Costa Rica. Es una región de afloramiento estacional, rica en ambientes y organismos marinos, y además, la zona de mayor desarrollo turístico del país. En este trabajo compilo y analizo
Jorge Cortés
doaj  

An Assessment of the Weather Research and Forecasting Model for Solar Irradiance Forecasting under the Influence of Cold Fronts in a Desert in Northwestern Mexico

open access: yesAtmosphere
Northwestern Mexico has a desert climate with high solar resources. Clear skies and low humidity during most of the year favor their use. In winter, the arrival of cold air masses from the polar latitudes cause instability and abrupt changes in ...
Jose Ernesto López-Velázquez   +5 more
doaj   +1 more source

Spectral Modeling of the Dark Signal for UV and VIS‐NIR AvaSpec‐2048 CCD‐Array Spectrometers

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The use of CCD‐array spectrometers has substantially increased in recent years in many different fields. Although they have numerous advantages over conventional scanning spectrometers, they need to be thoroughly characterized to correct for various sources of error. This study focuses on the experimental characterization of the dark signal of
A. Flores   +4 more
wiley   +1 more source

SISTEMAS ATMOSFÉRICOS ATUANTES E DIVERSIDADE PLUVIOMÉTRICA EM SERGIPE

open access: yesBoletim Goiano de Geografia, 2014
Este trabalho visa a demonstrar a importância dos sistemas atmosféricos na constituição dos tipos climáticos do estado de Sergipe, bem como a sua distribuição.
Marco Túlio Mendonça Diniz   +2 more
doaj   +1 more source

A 50-year cycle of sea surface temperature regulates decadal precipitation in the tropical and South Atlantic region

open access: yesCommunications Earth & Environment, 2023
Northeast Brazil and Western Africa are two regions geographically separated by the Atlantic Ocean, both home to vulnerable populations living in semi-arid areas. Atlantic Ocean modes of variability and their interactions with the atmosphere are the main
Iuri Gorenstein   +5 more
doaj   +1 more source

Integrated Assessment of Indoor Air Pollution and Associated Health Risks in a Hemodialysis Unit

open access: yesIndoor Air, Volume 2026, Issue 1, 2026.
Indoor air quality (IAQ) is critical for protecting occupant health, particularly in healthcare settings such as hemodialysis (HD) units, where patients spend prolonged periods indoors. This study assessed IAQ in an HD treatment room over 1 year, identified pollutant sources using indoor/outdoor (I/O) ratios, and evaluated associated health risks for ...
Diana Rodríguez   +4 more
wiley   +1 more source

Nitrogen management challenges in major watersheds of South America

open access: yesEnvironmental Research Letters, 2015
Urbanization and land use changes alter the nitrogen (N) cycle, with critical consequences for continental freshwater resources, coastal zones, and human health.
Mercedes M C Bustamante   +7 more
doaj   +1 more source

Analysis of the Unprecedented Reduction in Antarctic Sea Ice During the Years 2022–2023

open access: yesInternational Journal of Climatology, Volume 45, Issue 16, 30 December 2025.
This study examines the unprecedented Antarctic SIE decline in 2022–2023. Results show record‐low SIE with inhomogeneous spatial patterns, potentially driven by complex air‐sea interactions. Findings suggest internal climate variability influences Antarctic sea ice, mainly through wind pattern shifts linked to changes in the Amundsen Sea Low.
Helena Barbieri de Azevedo   +2 more
wiley   +1 more source

The S-PLUS Fornax Project (S+FP): Fornax-like clusters in cosmological hydrodynamical simulations

open access: yesAstronomy & Astrophysics
Context. The Fornax cluster, the second-nearest rich galaxy cluster, constitutes a suitable laboratory to explore the evolution of galaxies in a dense environment.
Zenocratti L. J.   +14 more
doaj   +1 more source

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