Results 41 to 50 of about 27,379 (184)

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

Climate Indices and Their Impact on Maize Yield in Veracruz, Mexico

open access: yesAtmosphere, 2023
The State of Veracruz (Mexico) is highly vulnerable to climate change. Therefore, it is necessary to identify and analyze local climate extreme trends and explore potential relationships between climate indices and maize.
Citlali Villa-Falfán   +3 more
doaj   +1 more source

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

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

Temperatures and treeline elevation in the Sierra Nevada de Mérida of the Venezuelan Andes

open access: yesArctic, Antarctic, and Alpine Research
We report here on two extensive data sets across the tree line in the Sierra Nevada de Mérida in the Venezuelan Andes. First, we describe the tree distribution with elevation at this site.
Vicente Marcano   +2 more
doaj   +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

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

Metodología de priorización de servicios urbanos en ciudades intermedias. Aporte a la sostenibilidad urbana [PDF]

open access: yes, 2012
Para facilitar la toma de decisiones a nivel territorial, se deben generar estrategias integrales que relacionen tanto la capacidad que tienen los ecosistemas para suplir las demandas de la ciudad, así como los servicios que ofrece al conjunto de ...
Arias Morales, Jennifer Paola   +1 more
core  

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

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

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