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Title: Continuous versus event-based sampling: how many samples are required for deriving general hydrological understanding on Ecuador's páramo region?
Authors: Correa, A
Celleri Alvear, Rolando Enrique
Crespo Sanchez, Patricio Javier
Feyen, Jan Jozef Albert
metadata.dc.ucuenca.correspondencia: Correa, A.; Departamento de Recursos Hídricos y Ciencias Ambientales, Universidad de Cuenca, Av 12 de Abril, Ecuador; email: alicia.correa@umwelt.uni-giessen.de
Keywords: Andean Páramo
Continuous Monitoring
Event Sampling
Hydrological Indices
Physiographic Descriptors
Issue Date: 30-Oct-2016
metadata.dc.ucuenca.embargoend: 1-Jan-2022
metadata.dc.ucuenca.volumen: 30
metadata.dc.source: Hydrological Processes
metadata.dc.identifier.doi: 10.1002/hyp.10975
metadata.dc.type: Article
As a consequence of the remote location of the Andean páramo, 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 of temporal monitoring, a nested (n = 7) hydrological monitoring network was set up in the Zhurucay catchment (7.53 km2), south Ecuador. The research questions were as follows: (1) Can event sampling provide similar information in comparison with continuous monitoring, and (2) if so, how many events are needed to achieve a similar degree of information? A subset of 34 rainfall–runoff events was compared with monthly values derived from a continuous monitoring scheme from December 2010 to November 2013. Land cover and physiographic characteristics were correlated with 11 hydrological indices. Results show that despite some distinct differences between event and continuous sampling, both data sets reveal similar information; more in particular, the monitoring of a single event in the rainy season provides the same information as continuous monitoring, while during the dry season, ten events ought to be monitored. Copyright © 2016 John Wiley & Sons, Ltd.
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983735538&doi=10.1002%2fhyp.10975&partnerID=40&md5=8406efa1abd2345820115b0241de6dc1
ISSN: 8856087
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