Results 31 to 40 of about 1,337 (187)

Verification of Calibrated Multimodel Subseasonal Precipitation Predictions Cascaded From Global to Regional Scale Over Ceará State in Brazil

open access: yesMeteorological Applications, Volume 33, Issue 2, March/April 2026.
This study assesses prediction quality of regionally refined (downscaled) calibrated multimodel predictions for Ceará State in Brazil. Downscaled predictions maintained similar performance levels to those obtained at the coarser spatial resolution of the used global models, reassuring the adequacy of the cascading procedure used to generate predictions
Caio A. S. Coelho   +4 more
wiley   +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

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

Archeointensity Database and Geomagnetic Field Reference Curves for South America Over the Past 5 Millennia

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The study of variations in geomagnetic field intensity over time and space is crucial to understand the evolution of the geodynamo and its interactions with the Earth's surface. In this work, we introduce the SAGEOMAG (South America GEOMAGnetic) database, a comprehensive and updated repository of geomagnetic field intensity records derived ...
Victor J. O. Marum   +6 more
wiley   +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

calendarPM10_feb2020

open access: yes, 2020
Centro de Ciencias Atmosféricas y Tecnologías ...
Centro de Ciencias Atmosféricas y Tecnologías Verdes
core  

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

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

Home - About - Disclaimer - Privacy