Quantification and study of monthly variation of suspended sediment loads in Tafna basin – Algeria

• Autorzy: Belarbi F. , Bouchelkia H. , Remini B. , Benmansour A.

Identyfikatory

DOI

10.2478/jwld-2018-0022

Warianty tytułu

PL

Ilościowa ocena i analiza miesięcznej zmienności ładunku zawiesiny w basenie Tafna w Algierii

• Języki publikacji: EN

Abstrakty

EN

The magnitude of the phenomenon is disproportionate in semi-arid or in temperate climates. Thus Algeria is one of the most affected countries by this phenomenon and its consequences. To enable a rapid response to the request of engineers and managers to quantify sediment transport at the outlet of a watershed, a simple, easy tool to implement was developed. The principle adopted is based on hydrometric data sets from gauging stations with seasonal and annual time steps to define a suitable method for estimating sediment production. The sediment study was conducted by analysing the daily flows. Pierre du Chat station at the outlet of the Tafna basin served as an application. The obtained results are entirely satisfactory because the correlation coefficients of model Q_s = f(Q) range between 72 and 95%. This method, once refined can be generalized to all watersheds in northern Algeria.

PL

Rozmiary sedymentacji są nieporównywalne w klimacie półpustynnym i umiarkowanym. Algieria jest jednym z państw dotkniętych tym procesem i jego skutkami. Aby zapewnić szybką reakcję na wymagania inżynierów i zarządców co do ilościowej oceny transportu osadu, na odpływie ze zlewni skonstruowano proste i łatwe w użyciu narzędzie nadające się do wdrożenia. Przyjęte zasady opierają się na zestawie danych hydrometrycznych z posterunków pomiarowych z użyciem sezonowych i rocznych kroków czasowych w celu zdefiniowania odpowiedniej metody do oceny produkcji osadu. Badania prowadzono, analizując dobowe przepływy. Przykładem był posterunek Pierre du Chat zamykający zlewnię Tafna. Uzyskane wyniki są w pełni satysfakcjonujące, ponieważ współczynnik korelacji modelu Q_s = f(Q) wynosił od 72 do 95%. Przedstawiona metoda, po udoskonaleniu, może zostać uogólniona na wszystkie zlewnie w północnej Algierii.

Słowa kluczowe

EN

erosion; sediment transport; statistics; suspension; Tafna basin; watershed

PL

erozja; rzeka Tafna; statystyka; transport osadu; zawiesina; zlewnia

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2018
• Tom: no. 37
• Strony: 29--38
• Opis fizyczny: Bibliogr. 38 poz., rys., tab.

Twórcy

autor

Belarbi F.

• University of Tlemcen, Department of Hydraulic, URMER Laboratory, BP 230, 13000 Chetouane, Tlemcen, Algeria

autor

Bouchelkia H.

• University of Tlemcen, Department of Hydraulic, URMER Laboratory, BP 230, 13000 Chetouane, Tlemcen, Algeria

autor

Remini B.

• Blida University, Department of Water Science, Larhyss Laboratory, Blida, Algeria

autor

Benmansour A.

• University of Tlemcen, Department of Hydraulic, URMER Laboratory, BP 230, 13000 Chetouane, Tlemcen, Algeria

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