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    Characterization of surface water isotope spatial patterns of Scotland 

    Birkel, Christian; Helliwell, Rachel; Thornton, Barry; Gibbs, Sheila; Cooper, Pat; Soulsby, Chris; Tetzlaf, Doerthe; Spezia, Luigi; Esquivel-Hernández, Germain; Sánchez-Murillo, Ricardo; Midwood, Andrew J. (Elsevier B.V., 2018-07-24)
    The extended National Waters Inventory of Scotland (NWIS) monitoring network in combination with an extensive, supplementary low flow sampling campaign was used to create isoscapes of surface water for management purposes ...
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    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 ...
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    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 ...
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    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 ...
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    Tracer-aided modelling reveals quick runo generation and groundwater losses producing young stream ow ages in a tropical rainforest catchment 

    Mayer-Anhalt, Leia; Birkel, Christian; Sanchez-Murillo, Ricardo; Shulz, Stephan (2021-05-29)
    There is still limited understanding of how waters mix, where waters come from and for how long they reside in tropical catchments. In this study, we used a tracer-aided model (TAM) and a gamma convolution integral model ...
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    Tracing water sources and fluxes in a dynamic tropical environment from observations to modeling 

    Sanchez-Murillo, Ricardo; Esquivel-Hernández, Germain; Birkel, Christian; Correa, A.; Welsh, K.; Durán-Quesada, A. M.; Sánchez-Gutiérrez, Rolando; Poca, M. (Frontiers in Earth Science, 2020-11-06)
    Tropical regions cover approximately 36% of the Earth’s landmass. These regions are home to 40% of the world’s population, which is projected to increase to over 50% by 2030 under a remarkable climate variability scenario ...
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    DOC Transport and Export in a Dynamic Tropical Catchment 

    Sanchez-Murillo, Ricardo; Romero-Esquivel, L. G.; Jiménez Antillón, J.; Salas Navarro, J.; Corrales Salazar, L.; Álvarez Carvajal, J.; Álvarez McInerney, S.; Bonilla Barrantes, D,; Gutiérrez Sibaja, N.; Martínez - Arroyo, M.; Ortíz Apuy, E.; Salgado Lobo, J.; Villalobos Morales, J.; Esquivel-Hernández, Germain; Rojas Jiménez, L.D.; Gómez Castro, C.; Jiménez Madrigal, Q.; Vargas Gutiérrez, O.; Birkel, Christian (American Geophysical Union, 2019)
    Abstract Dissolved organic carbon (DOC) transport and export from headwater forests into freshwaters in highly dynamic tropical catchments are still understudied. Here we present a DOC analysis (2017) in a pristine and ...
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    Headwaters drive streamflow and lowland tracer export in a large-scale humid tropical catchment 

    Birkel, Christian; Correa, Alicia; Martinez Martinez, Marco; Granados-Bolaños, Sebastián; Venegas Cordero, Nelson; Gutiérrez-García, Kenneth; Blanco-Ramírez, Sara; Quesada-Mora, Rafael; Solano-Rivera, Vanessa; Mussio-Mora, Jasson; Chavarría-Palma, Andrés; Vargas-Arias, Katherine; Moore, Georgianne W.; Durán-Quesada, Ana María ; Vasquez Morera, Javier; Soulsby, Chris; Tetzlaff, Dorthe; Espinoza-Cisneros, Edgar; Sanchez-Murillo, Ricardo (John Wiley and Sons Ltd, 2020)
    Headwaters are generally assumed to contribute the majority of water to downstream users, but how much water, of what quality and where it is generated are rarely known in the humid tropics. Here, using monthly monitoring ...
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    Insight into the stable isotopic composition of glacial lakes in a tropical alpine ecosystem: Chirripó, Costa Rica 

    Esquivel-Hernández, Germain; Sanchez-Murillo, Ricardo; Quesada-Román, Adolfo; Mosquera, Giovanny; Birkel, Christian; Ball, Jan (Wiley & Sons, 2018)
    Tropical high‐elevation lakes are considered sentinels of global climate change. This work characterizes the hydrological conditions of tropical alpine glacial lakes located in the highlands of Chirripó, Costa Rica, using ...
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    End member and Bayesian mixing models consistently indicate near-surface flowpath dominance in a pristine humid tropical rainforest 

    Birkel, Christian; Correa, Alicia; Duvert, Clément; Granados-Bolaños, Sebastián; Chavarría Palma, Andres; Duran Quesada, Ana Maria; Sánchez-Murillo, Ricardo; Biester, Harald (John Wiley & Sons Ltd, 2021)
    The impacts of forest conversion on runoff generation in the tropics have received much interest, but scientific progress is still hampered by challenging fieldwork conditions and limited knowledge about runoff mechanisms. ...
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    Birkel, Christian (4)
    Soulsby, Chris (4)Ball, Jan (2)Welsh, K. (2)Alonso Hernández, Carlos M. (1)Araguás Araguás, L. (1)Arce - Mesén, R. (1)Benegas, Laura (1)Beyer, Matthias (1)Biester, Harald (1)... View MoreSubjectCOSTA RICA (10)ISOTOPOS (9)ISOTOPES (5)HUMID TROPICS (3)PRECIPITACIÓN (3)AGUAS SUBTERRÁNEAS (2)CUENCAS HIDROGRÁFICAS (2)HIDROLOGÍA (2)PRECIPITATION (2)STABLE ISOTOPES (2)... View MoreDate Issued2018 (3)2019 (3)2020 (3)2021 (3)2016 (2)Has File(s)Yes (14)

    Repositorio Académico Institucional de la Universidad Nacional de Costa Rica. Creado con DSpace software copyright © 2002-2015  DuraSpace. Tema basado en Mirage2 de ATMIRE..
    Sitio Web UNA | Portal de Revistas Académicas | Aviso Legal | Contact Us | Send Feedback
    Repositorio Institucional - UNA