Abstract

GARCIA-RENGIFO, Christian  and  DURAN-BALLEN, Sixto. Climatic Variability in the hydrographic basin of the Chalpi Grande river in Napo-Ecuador. Enfoque UTE [online]. 2023, vol.14, n.1, pp.1-17. ISSN 1390-6542.  https://doi.org/10.29019/enfoqueute.872.

The watershed basin of the Chalpi Grande River is located in the Ecuadorian Amazon. This basin, being above 3200 m a.s.l. It has characteristics of Andean and Amazonian ecosystems. The conservation of this basin is extremely important because the supply of 2.2 m3/s for the Metropolitan District of Quito depends on this river. The objective of this research is the characterization of the additional climate of 31 years (1985-2015) of records of temperature, precipitation and flow of the Chalpi Grande River based on the historical records of INAMHI, EPMAPS and FONAG. These were systematized records filled in based on statistical methods and remote sensors for data validation. The climatic temperature shows increases both in the behaviors and in the trends of the winter and summer seasons; as well as in the trends of climatic parameters that can be the effect of atmospheric phenomena, such as the latent problem of climate change.

Keywords : Hydrology; El Niño-southern oscillation; climate change; temperature; precipitation; flow; remote sensing.

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