Hydrology and Discharge

Wohl, Ellen; Lininger, Katherine B.

doi:10.1002/9781119412632.ch3

Cited by 5 publications

(4 citation statements)

References 132 publications

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“…Small streams react very quickly to rainfall or snowmelt effects and their discharge can increase substantially, resulting in high amplitudes and high frequencies of change (Allan & Castillo, 2009). With increasing size and decreasing altitude, natural, large rivers integrate the individual flow patterns of their tributaries, resulting in longer periods of floods and droughts and slower changes (Wohl & Lininger, 2022). These general patterns are influenced by the catchment size, the declivity of the landscape, and precipitation patterns especially in the piedmont zone of mountains; fast spring floods may occur even in large rivers after seasonal rains or snowmelt (Wohl & Lininger, 2022).…”

Section: Variations To a Themementioning

confidence: 99%

“…With increasing size and decreasing altitude, natural, large rivers integrate the individual flow patterns of their tributaries, resulting in longer periods of floods and droughts and slower changes (Wohl & Lininger, 2022). These general patterns are influenced by the catchment size, the declivity of the landscape, and precipitation patterns especially in the piedmont zone of mountains; fast spring floods may occur even in large rivers after seasonal rains or snowmelt (Wohl & Lininger, 2022). Beyond these natural, annual patterns, there are multi‐year phases of drier and wetter years, which may be driven by global climatic cycles (Liang et al, 2016), or human impacts like climate change (Feng et al, 2021) or damming (Grill et al, 2015; Jardim et al, 2020).…”

Section: Natural Hydrological Rhythms In Aquatic Ecosystems: Variatio...mentioning

confidence: 99%

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River culture: How socio‐ecological linkages to the rhythm of the waters develop, how they are lost, and how they can be regained

Wantzen

2022

Geographical Journal

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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. The information, practices and views in this article are those of the author(s) and do not necessarily reflect the opinion of the Royal Geographical Society (with IBG).

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Section: Variations To a Themementioning

confidence: 99%

Section: Natural Hydrological Rhythms In Aquatic Ecosystems: Variatio...mentioning

confidence: 99%

River culture: How socio‐ecological linkages to the rhythm of the waters develop, how they are lost, and how they can be regained

Wantzen

2022

Geographical Journal

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“…Cumulating all the rivers discharges of Senegal and Guinea [12°N-17°N] leads to an average monthly outflow of ~30 000 m 3 s -1 at its annual maximum in September. In comparison, the largest Amazon outflow in May is 276 000 m 3 s -1 , and the largest outflow of the Congo River is 56 000 m 3 s -1 in December (Wohl and Lininger 2022). However, e-SNTA region is of particular interest because it is subject to both river discharge and intense precipitation linked to the meridional displacements of the InterTropical Convergence Zone (ITCZ).…”

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confidence: 99%

Interannual variability of Sea Surface Salinity in North-Eastern Tropical Atlantic: influence of freshwater fluxes

Thouvenin-Masson,

Boutin,

Échevin

et al. 2024

Preprint

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Abstract. In tropical regions, the fresh water flux entering the ocean originates primarily from precipitation and, to a lesser extent when considering basin scale averages, from continental rivers. Nevertheless, at regional scale, river flows can have a significant impact on the surface ocean dynamics. Riverine fresh water modifies salinity, and therefore density, stratification and circulation. With its particular coastline, relatively high cumulative river discharge, and the vicinity of Inter Tropical Convergence Zone (ITCZ), the eastern Southern North Tropical Atlantic (e-SNTA) region off Northwest Africa is a particularly interesting location to study the linkage between precipitations, river outflows and Sea Surface Salinity (SSS). Here we focus on the regional e-SNTA SSS seasonal cycle and interannual variability. We quantify the impact of river runoff and precipitation on SSS by means of regional simulations forced by different interannual and climatological river runoffs and precipitation products. The simulated SSS are compared with the Climate Change Initiative (CCI) SSS, in situ SSS from Argo, ships and a coastal mooring, and the GLORYS reanalysis SSS. The analysis of the salinity balance in the mixed layer is conducted to explore the dynamics influencing the SSS variability. Overall, the simulations reproduce well the seasonal cycle and interannual variability despite a positive mean model bias north of 15N. The seasonal cycle is impacted by the phasing of the different runoff products. The mixed layer SSS decrease during the rainy season is mainly driven by precipitation followed by runoff by means of horizontal advection and partly compensated by vertical mixing. In terms of interannual anomalies, river runoffs have a more direct impact on SSS than precipitation. This study highlights the importance of properly constraining river runoff and precipitation to simulate realistic SSS, and the importance of observing SSS in coastal regions to validate such constraints.

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confidence: 99%

Comment on egusphere-2024-818

2024

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Hydrology and Discharge

Cited by 5 publications

References 132 publications

River culture: How socio‐ecological linkages to the rhythm of the waters develop, how they are lost, and how they can be regained

River culture: How socio‐ecological linkages to the rhythm of the waters develop, how they are lost, and how they can be regained

Interannual variability of Sea Surface Salinity in North-Eastern Tropical Atlantic: influence of freshwater fluxes

Comment on egusphere-2024-818

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