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Jan Feyen
University of Cuenca
GeologySoil scienceSoil waterHydrologyEnvironmental science
337Publications
49H-index
7,343Citations
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Publications 337
Newest
#1Giovanny Mauricio Mosquera Rojas (University of Cuenca)H-Index: 1
#1Giovanny M. Mosquera (University of Cuenca)H-Index: 8
Last. David Windhorst (University of Giessen)H-Index: 12
view all 5 authors...
Andosol soils formed in volcanic ash provide key hydrological services in montane environments. To unravel the subsurface water transport and tracer mixing in these soils we conducted a detailed characterization of soil properties and analyzed a 3‐year data set of sub‐hourly hydrometric and weekly stable isotope data collected at three locations along a steep hillslope. A weakly developed (52–61 cm depth), highly organic andic (Ah) horizon overlaying a mineral (C) horizon was identified, both sh...
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#1Ryan S. Padrón (ETH Zurich)H-Index: 3
#2Jan Feyen (University of Cuenca)H-Index: 49
Last. Rolando Célleri (University of Cuenca)H-Index: 16
view all 5 authors...
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#1Ryan S. Padrón (ETH Zurich)H-Index: 3
#1Ryan S. PadrónH-Index: 1
Last. Rolando Célleri (University of Cuenca)H-Index: 16
view all 5 authors...
Efforts to correct precipitation measurements have been ongoing for decades, but are scarce for tropical highlands. Four tipping-bucket (TB) rain gauges with different resolution that are commonly used in the Andean mountain region were compared—one DAVIS-RC-II, one HOBO-RG3-M, and two TE525MM TB gauges (with and without an Alter-type wind screen). The relative performance of these rain gauges, installed side-by-side in the Zhurucay Ecohydrological Observatory, south Ecuador, at 3780 m a.s.l., w...
1 CitationsSource
#1Alicia Correa (University of Giessen)H-Index: 3
#1Alicia Correa (UCR: University of Costa Rica)H-Index: 1
Last. David Windhorst (University of Giessen)H-Index: 12
view all 8 authors...
Demostramos el gran valor de los datos hidroquimicos distribuidos espacialmente y de alta resolucion temporal para mejorar el conocimiento sobre la variabilidad intracaptura de los procesos de flujo y la composicion de la escorrentia de tormentas individuales en un ecosistema alpino tropical (Paramo). En este estudio, las fuentes de agua (lluvia, agua de manantial y agua de las capas de suelo de Histosoles y Andosoles) y las corrientes anidadas se muestrearon cada dos semanas (2013–2014), inclui...
7 CitationsSource
#1Franklin MarínH-Index: 1
Last. Patricio CrespoH-Index: 16
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Andean ecosystems provide important ecosystem services including streamflow regulation and carbon sequestration, services that are controlled by the water retention properties of the soils. Even though these soils have been historically altered by pine afforestation and grazing, little research has been dedicated to the assessment of such impacts at local or regional scales. To partially fill this knowledge gap, we present an evaluation of the impacts of pine plantations and grazing on the soil ...
5 CitationsSource
#1Alicia Correa (University of Giessen)H-Index: 3
#2David Windhorst (University of Giessen)H-Index: 12
Last. Lutz Breuer (University of Giessen)H-Index: 33
view all 7 authors...
Funded by Central Research Office of the Universidad de Cuenca (DIUC) Secretaria de Educacion Superior, Ciencia, Tecnologia e Innovacion (SENESCYT 112–2012) . Grant Number: SENESCYT 112-2012 German Research Foundation (DFG) . Grant Number: BR2238/14-1
19 CitationsSource
#1Edison Timbe (University of Cuenca)H-Index: 7
#2Jan Feyen (University of Cuenca)H-Index: 49
Last. Lutz Breuer (University of Giessen)H-Index: 33
view all 8 authors...
To improve the current knowledge of the rainfall–runoff phenomena of tropical montane catchments, we explored the usefulness of several hydrological indicators on a nested cloud forest catchment (76.9 km²). The used metrics belong to 5 categories: baseflow mean transit time, physicochemical properties of stream water, land cover, topographic, and hydrometric parameters. We applied diverse statistical techniques for data analysis and to contrast findings. Multiple regression analysis showed that ...
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#1Lenin Campozano (University of Marburg)H-Index: 7
#2Angel Vázquez‐Patiño (University of Cuenca)H-Index: 1
Last. Esteban Sánchez (University of Cuenca)H-Index: 5
view all 6 authors...
5 CitationsSource
#1Paul MuñozH-Index: 2
#2Rolando CélleriH-Index: 16
Last. Jan FeyenH-Index: 49
view all 3 authors...
A laser-optical disdrometer served as reference to assess the absolute percent bias of calculated rainfall intensity using the data of different-resolution tipping-bucket rain gauges classically applied by climatologists and hydrologists in the Andean region. Additionally, the impact of the calculation method (tip counting versus cubic spline interpolation) was examined. The combined effect was assessed for different rainfall intensity classes (0–0.99, 1–1.99, 2–4.99, and 5–10 mm·h−1) and timesc...
11 CitationsSource
#1Alicia Correa (University of Cuenca)H-Index: 3
#2David Windhorst (University of Giessen)H-Index: 12
Last. Lutz Breuer (University of Giessen)H-Index: 33
view all 6 authors...
As a consequence of the remote location of the Andean paramo, knowledge on their hydrologic functioning is limited; notwithstanding, these alpine tundra ecosystems act as water towers for a large fraction of the society. Given the harsh environmental conditions in this region, year-round monitoring is cumbersome, and it would be beneficial if the monitoring needed for the understanding of the rainfall–runoff response could be limited in time. To identify the hydrological response and the effect ...
12 CitationsSource
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