Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina

Water quality of the Uruguay River was evaluated with multi-parametric (temperature, turbidity, conductivity, pH, dissolved oxygen) and sediment trap data (particle flux, total organic carbon and nitrogen contents) and correlated to precipitation, river discharge and El Niño Southern Oscillation (EN...

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Detalles Bibliográficos
Autores principales: Colombo, Juan Carlos, Skorupka, Carlos Norberto, Bilos, Claudio, Tatone, Leandro Martín, Cappelletti, Natalia Elsa, Migoya, María Carolina, Astoviza, Malena Julia, Speranza, Eric Demian
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Naturales
ENSO
Uruguay River
water quality
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86766
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86766
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
ENSO
Uruguay River
water quality
spellingShingle Ciencias Naturales
ENSO
Uruguay River
water quality
Colombo, Juan Carlos
Skorupka, Carlos Norberto
Bilos, Claudio
Tatone, Leandro Martín
Cappelletti, Natalia Elsa
Migoya, María Carolina
Astoviza, Malena Julia
Speranza, Eric Demian
Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
topic_facet Ciencias Naturales
ENSO
Uruguay River
water quality
description Water quality of the Uruguay River was evaluated with multi-parametric (temperature, turbidity, conductivity, pH, dissolved oxygen) and sediment trap data (particle flux, total organic carbon and nitrogen contents) and correlated to precipitation, river discharge and El Niño Southern Oscillation (ENSO) indices for the period 2006–2011. Hydro-meteorological parameters averaged 24–85% variability with coincident precipitation (200–400 mm month<sup>-1</sup>), discharge (7000–28 000 m<sup>3</sup> s<sup>-1</sup>) and turbidity peaks (50–80 NTU) in the austral spring, and absolute maxima during the El Niño 2009 episode. Spectral analysis of discharge and sea-surface temperature anomaly (SSTA) showed consistent variance maxima at approx. 3 and 1.5 years. Deseasonalized discharge was significantly correlated to SSTA. During river floods, pH decreased (from 7.5 to 6.6) and particle dynamics peaked (turbidity: 15–80 NTU; vertical fluxes: 20–200 g m<sup>-2</sup> d<sup>-1</sup>; total solid load: <1000 to 100 000 t d<sup>-1</sup>),whereas TOC remained stable (3.2 ± 0.8%) and C/N ratios increased (10–12) due to the higher contribution of terrestrial detritus.
format Articulo
Articulo
author Colombo, Juan Carlos
Skorupka, Carlos Norberto
Bilos, Claudio
Tatone, Leandro Martín
Cappelletti, Natalia Elsa
Migoya, María Carolina
Astoviza, Malena Julia
Speranza, Eric Demian
author_facet Colombo, Juan Carlos
Skorupka, Carlos Norberto
Bilos, Claudio
Tatone, Leandro Martín
Cappelletti, Natalia Elsa
Migoya, María Carolina
Astoviza, Malena Julia
Speranza, Eric Demian
author_sort Colombo, Juan Carlos
title Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
title_short Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
title_full Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
title_fullStr Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
title_full_unstemmed Seasonal and inter-annual variability of water quality in the Uruguay River, Argentina
title_sort seasonal and inter-annual variability of water quality in the uruguay river, argentina
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86766
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