Results 21 to 30 of about 17,031 (208)

Characterization of aerosol particles during a high pollution episode over Mexico City

open access: yesScientific Reports, 2021
More than 7 thousand wildfires were recorded over Mexico in 2019, affecting almost 640 thousand hectares. Most of these fires occurred during the spring season generating dense smoke plumes, impacting urban areas in the central part of the Mexican ...
Giovanni Carabali   +9 more
doaj   +1 more source

Total Mass Flux in the Northern Humboldt Current System: Rates and Contribution Sources from Central Peru (12° S)

open access: yesHydrobiology, 2023
The total mass flux (TMF) of particulate organic matter (POM) is key for understanding the energetic transfer within the “biological pump” (i.e., involving the carbon cycle), reflecting a critical connection between the surface and the bottom.
Bobby Leigh   +7 more
doaj   +1 more source

An assessment of climate change impacts on the tropical forests of Central America using the Holdridge Life Zone (HLZ) land classification system

open access: yesiForest - Biogeosciences and Forestry, 2013
Ecological models have predicted shifts in forest biomes, yet there have been very few studies that have looked at the implications on carbon stocks due to these shifts.
Khatun K, Imbach P, Zamora J
doaj   +1 more source

The OMZ and nutrient features as a signature of interannual and low-frequency variability in the Peruvian upwelling system [PDF]

open access: yesBiogeosciences, 2017
Over the last decades, the Humboldt Current upwelling ecosystem, particularly the northern component off the coast of Peru, has drawn the interest of the scientific community because of its unique characteristics: it is the upwelling system with the ...
M. I. Graco   +9 more
doaj   +1 more source

China en la agenda ambiental: entre el liderazgo internacional y el cambio climático

open access: yes, 2021
La preocupación de China sobre el Medio Ambiente no nace en la actualidad. Autores como Salamanca y Eschenhagen (2008) aluden que la preocupación del ambiente por parte de China surge del sistema tradicional de pensamiento chino donde el hombre formaba parte integral del Cosmos.
Cortizas, Ludmila   +1 more
openaire   +1 more source

A Climatology of Mesoscale Convective Systems in Northwest Mexico during the North American Monsoon

open access: yesAtmosphere, 2022
Mesoscale Convective Systems (MCS) may vary greatly with respect to their morphology, propagation mechanism, intensity, and under which synoptic-scale conditions as a function of topographic complexity.
Omar Ramos-Pérez   +3 more
doaj   +1 more source

Modelos estocásticos para el análisis espaciotemporal de extremos. Aplicaciones al análisis de cambio climático

open access: yes, 2023
La evidencia del cambio climático inducido por el aumento de la concentración de gases de efecto invernadero en la atmósfera sugiere un incremento no solo en la temperatura media, sino también en días cálidos más frecuentes, olas de calor, y temperaturas extremas y récord.
Castillo Mateo, Jorge   +2 more
openaire   +1 more source

Anfípodos bentónicos (Amphilochidea y Senticaudata) en el centro norte de la plataforma continental del Perú

open access: yesRevista Peruana de Biología, 2018
En el presente trabajo se reportan las especies de anfípodos bentónicos de los subórdenes Amphilochidea y Senticaudata de la Plataforma Continental Centro Norte del Perú (03°24'S - 79°30'W a 09°00'S - 81°30'W) colectadas durante la estación de otoño.
Analí Jiménez   +2 more
doaj   +1 more source

Determinants of informal enterprise closure by gender: a microeconometric study applied in Senegal

open access: yesRetos: Revista de Ciencias de la Administración y Economía, 2023
This article aims to investigate the factors influencing the closure of informal businesses during the COVID-19 pandemic, with a specific focus on the differences between businesses led by women and men.
Ayoub Saadi   +2 more
doaj   +1 more source

Indicadores asociados a la sostenibilidad de pasturas: una revisión

open access: yesCiencia y Tecnología Agropecuaria, 2019
Las pasturas son ecosistemas antropizados que ofrecen recursos alimenticios de bajo costo, principalmente para la alimentación de rumiantes, siendo la base para la producción y los medios de vida en muchas zonas rurales del mundo.
Pablo Andrés Motta-Delgado   +2 more
doaj   +1 more source

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