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Now showing items 121-130 of 136
ENSO sentinels in the Americas' humid tropics: We need combined hydrometric and isotopic monitoring for improved El Niño and La Niña impact prediction
(John Wiley & Sons (Estados Unidos), 2023)
This Scientific Briefing presents results from a nearly 10-year hydrometric and isotope
monitoring network across north-central Costa Rica, a region known as a
headwater-dependent system. This monitoring system has ...
Nitrate Legacy in a Tropical and Complex Fractured Volcanic Aquifer System
(John Wiley & Sons (Estados Unidos), 2023)
Nitrate legacy is affecting groundwater sources across the tropics. This study describes isotopic
and ionic spatial trends across a tropical, fractured, volcanic multi-aquifer system in central Costa Rica in
relation to ...
Exploring the acid neutralizing effect in rainwater collected at a tropical urban area: Central Valley, Costa Rica
(Elsevier (Países Bajos), 2023)
We report on the chemical and the carbon isotopic composition of dissolved inorganic carbon (DIC) of rainwater
collected between May and October 2020 in the Central Valley, Costa Rica. Precipitation samples were ...
Dry season plant water sourcing in contrasting tropical ecosystems of Costa Rica
(John Wiley & Sons (Estados Unidos), 2023)
Tracer-aided studies to understand plant water uptake sources and dynamics in tropical
ecosystems are limited. Here, we report the analysis of dry season source water
uptake patterns of five unique ecosystems of Costa ...
Hydrometeorological Factors Controlling the Stable Isotopic Composition of Precipitation in the Highlands of South Ecuador
(American Meteorological Society (Estados Unidos), 2022-07)
Knowledge about precipitation generation remains limited in the tropical Andes due to the lack of water stable isotope (WSI) data. Therefore, we investigated the key factors controlling the isotopic composition of precipitation ...
Exploring Dissolved Organic Carbon Variations in a High Elevation Tropical Peatland Ecosystem: Cerro de la Muerte, Costa Rica
(Frontiers Media (Suiza), 2022-01)
Tropical peatlands are distributed mainly in coastal lowlands; however high elevation regions exhibit a large prevalence of small and fragmented peatlands that are mostly understudied. Artificial drainage of peatlands to ...
Water stable isotopes reveal the hydrological response of Costa Rican glacial lakes to climate variability
(Elsevier (Países Bajos), 2022)
Los lagos generalmente se consideran una fuente de información clave para comprender el paleoclima. Aquí usamos estable.
Isótopos de agua (δ2H y δ18O) en un lago glacial tropical de gran altitud para informar sobre la ...
Isotopic composition and major ion concentrations of national and international bottled waters in Costa Rica
(Elsevier (Países Bajos), 2021)
Global bottled water consumption has largely increased (14.35 billion gallons in 2020) [1], [2], [3], [4], [5] during the last decade since consumers are demanding healthier and safer forms of rehydration. Bottled water ...
Antimicrobial activity and physicochemical characterization of thermoplastic films based on bitter cassava starch, nanocellulose and rosemary essential oil
(SAGE Publications (Estados Unidos), 2022)
Extended shelf-life of many foods is a modern requirement that has been achieved by
means of fossil-based plastic films despite their environmental issues. Recently, starchbased,
fully biodegradable thermoplastics are ...
Development of nanocomposite chitosan films with antimicrobial activity from agave bagasse and shrimp shells
(Elsevier (Países Bajos), 2023)
In this study, the nanocomposite chitosan films with antimicrobial activity from agave bagasse and shrimp shells
were developed. Chitosan was successfully extracted from shrimp shells waste and cellulose nanofibers ...