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Quels apports hydrologiques pour les modèles hydrauliques? Vers ...

Quels apports hydrologiques pour les modèles hydrauliques? Vers ...

Quels apports hydrologiques pour les modèles hydrauliques? Vers ...

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(a) (b)Flint Creek nearKansasIllinois River atSiloam SpringsIllinois River atSavoy62 (Flint Creek)541Savoy3Illinois River atTahlequah Tahlequah(c)2500200015001000500Confluence with trib.1Confluence with trib.3(d)Confluence with trib.5Confluence with trib.4Confluence with trib.6Confluence with trib.2Drained Upstream Area (km²)100010010tel-00392240, version 1 - 5 Jun 2009532327199126 118426821 2 3 4 5 6 (rest)Tributary Number00 20 40 60 80 100Distance from upstream boundary of the river reach (Savoy) in kmCatchment size at the confluence (km²)Fig. 1. (a) Location of the different stations: the upstream boundary of the riverreach is located on the Illinois River at Savoy and the downstream end at Tahlequah.Interior simulations were analysed on the main channel at Siloam Springs and on atributary of the Illinois River (Flint Creek) at Kansas. (b) Catchment boundaries ofthe six largest tributaries. (c) Catchment area (in km 2 ). (d) Changes in the drainedarea from the Savoy station to the Tahlequah station plotted against the hydraulicdistance from the Savoy station.33

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