Next Article in Journal
The Use of a Polymer Inclusion Membrane for Arsenate Determination in Groundwater
Next Article in Special Issue
Rainfall-Runoff Modelling Considerations to Predict Streamflow Characteristics in Ungauged Catchments and under Climate Change
Previous Article in Journal
Characteristics and Practices of Ecological Flow in Rivers with Flow Reductions Due to Water Storage and Hydropower Projects in China
Previous Article in Special Issue
Potential Threats from Variations of Hydrological Parameters to the Yellow River and Pearl River Basins in China over the Next 30 Years
Open AccessArticle

Correction of Precipitation Records through Inverse Modeling in Watersheds of South-Central Chile

1
Department of Civil Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
2
Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
*
Author to whom correspondence should be addressed.
Water 2018, 10(8), 1092; https://doi.org/10.3390/w10081092
Received: 6 July 2018 / Revised: 8 August 2018 / Accepted: 10 August 2018 / Published: 17 August 2018
Precipitation is the main input in the water balance of watersheds; therefore, correct estimates are necessary for water resources management and decision making. In south-central Chile there is a low density of precipitation gauges (~1 station/675 km2), most of which are located in low-altitude areas. The spatial distribution of precipitation is, therefore, not properly recorded. In this study an inverse modeling approach is used to estimate the extent to which precipitation amounts must be corrected. Using a lumped water balance model, a factor for correcting precipitation data is calculated for 41 watersheds located in south-central Chile. Then, based on a geo-statistical interpolation, a map for correcting the precipitation amounts is proposed and a validation of these corrections is achieved. The results show that in gently sloping areas, the precipitation records are more representative than in steep mountain areas. In addition, the higher the mountains, the less representative the precipitation records become. View Full-Text
Keywords: water balance; hydrological model; orography; inverse modeling water balance; hydrological model; orography; inverse modeling
Show Figures

Figure 1

MDPI and ACS Style

Muñoz, E.; Acuña, M.; Lucero, J.; Rojas, I. Correction of Precipitation Records through Inverse Modeling in Watersheds of South-Central Chile. Water 2018, 10, 1092.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop