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Spatial and Temporal Variation of Stable Isotopes in Precipitation across Costa Rica: An Analysis of Historic GNIP Records

Sánchez Murillo, Ricardo; Esquivel Hernández, Germain; Welsh, Kristen; S. Brooks, Erin; Boll, Jan; Alfaro Solís, Rosa; Valdés González, Juan (2013-11-27)

The location of Costa Rica on the Central American Isthmus creates unique microclimate systems that receive moisture inputs directly from the Caribbean Sea and the Pacific Ocean. In Costa Rica, stable isotope monitoring ...

Chemical and functional characterization of antimicrobial metabolites isolated from ascidian Rhopalaea Birkelandi

Cordero, Maribel; Borbón, Henry; Román, Félix R.; Morrel, Luis; Víquez, Rigoberto; Villegas, Luis R.; Soto, Roy; Vega, Ileana (Universidad Nacional (Costa Rica), 2011-12)

Marine ecosystems have a very large diversity of resources, most of them still partially unknown, and a few others exploited for development of new industrial and toxicological products. The objective of this investigation ...

Deciphering key processes controlling rainfall isotopic variability during extreme tropical cyclones

Sanchez-Murillo, Ricardo; Durán-Quesada, Ana María ; Esquivel-Hernández, Germain; Rojas-Cantillano, Daniela; Birkel, Christian; Welsh Unwala, Kristen; Sánchez-Llull, Minerva; Alonso Hernández, Carlos M.; Tetzlaff, Doerthe; Soulsby, Chris; Boll, Jan; Kurita, Naoyuki; Cobb, Kim (2019-09)

The Mesoamerican and Caribbean (MAC) region is characterized by tropical cyclones (TCs), strong El Niño-Southern Oscillation events, and climate variability that bring unique hazards to socio-ecological systems. Here we ...

Groundwater recharge mechanisms inferred from isoscapes in a complex tropical mountainous region

Sanchez-Murillo, Ricardo; Birkel, Christian (AGU Publications, 2016-05-23)

Stable isotope variations and groundwater recharge mechanisms remain poorly understood across the tropics, particularly in Central America. Here stable isotopes (δ18O and δ2H) in groundwater, surface water, and rainfall ...

Key drivers controlling stable isotope variations in daily precipitation of Costa Rica: Caribbean Sea versus Eastern Pacific Ocean moisture

Sanchez-Murillo, Ricardo; Birkel, Christian; Welsh, K.; Esquivel-Hernández, Germain; Corrales Salazar, José Leonardo; Boll, J.; Brooks, E.; Roupsard, O.; Saénz - Rosales, O.; Katchan, I,; Arce - Mesén, R.; Soulsby, C.; Araguás Araguás, L. (Elsevier, 2016)

Costa Rica is located on the Central American Isthmus, which receives moisture inputs directly from the Caribbean Sea and the Eastern Pacific Ocean. This location includes unique mountainous and lowland microclimates, but ...

Tracer hydrology in a hydrometric data-limited and complex tropical mountainous region: the case of the Central American Isthmus

Sanchez-Murillo, Ricardo; Esquivel-Hernández, Germain; Castro Chacón, Laura; Durán-Quesada, Ana María ; Guerrero Henández, Manuel; Delgado, Valeria; Barberena, Javier; Montenegro Rayo, Kata; Alvarado, Yaneth; Benegas, Laura; Hernández - Antonio, Arturo; Matamoros Ortega, Marcela; Ortega, Lucía; Terzer-Wassmuth, Stefan (European Geosciences Union, 2019)

Numerous socio-economic activities are dependent on the seasonal rainfall and groundwater recharge cycle across the Central American Isthmus. Demographic growth and unregulated land use changes resulted in extensive surface ...

GPS PrecipitableWater Vapor Estimations over Costa Rica: A Comparison against Atmospheric Sounding and Moderate Resolution Imaging Spectrometer (MODIS)

Campos - Arias, Polleth; Esquivel-Hernández, Germain; Valverde, José; Rodríguez - Rosales, Stephanie (MDPI, 2019)

Abstract: The quantification of water vapor in tropical regions like Central America is necessary to estimate the influence of climate change on its distribution and the formation of precipitation. This work reports daily ...

Groundwater flow modeling using iMOD for Barva and Colima aquifers in the Central Valley of Costa Rica: validation of a conceptual model using tracer data

Gomez Castro, Cinthya; Ball, Sheila Marie; Sanchez-Murillo, Ricardo (Universidad Nacional de Salta, 2018)

A stationary numerical model of groundwater flow was developed using iMOD to better understand the recharge processes within Barva and Colima aquifers (BCS), located in the northwestern region of the Central Valley of Costa ...

Hydrogeological responses in tropical mountainous springs

Salas-Navarro, Jessica; Sanchez-Murillo, Ricardo; Esquivel-Hernández, Germain; Corrales Salazar, José Leonardo (Taylor and Francis Ltd., 2019)

This study presents a hydrogeochemical analysis of spring responses (2013–2017) in the tropical mountainous region of the Central Valley of Costa Rica. The isotopic distribution of δ18O and δ2 H in rainfall resulted ...

Climate And Water Conflicts Coevolution From Tropical Development And Hydro-Climatic Perspectives: A Case Study Of Costa Rica

Esquivel-Hernández, Germain; Sanchez-Murillo, Ricardo; Birkel, Christian; Ball, Jan (American water resources Association, 2018)

Costa Rica is a nation with a vast wealth of water resources; however, recently the country has faced water conflicts (WC) due to social, economic, legal, and political impediments in response to limited water availability ...