ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA
Many studies on sediment transport have been carried out on Algerian rivers but few studies have been undertaken in catchments of the Northeast of Algeria. The scarcity or discontinuity on sediment transport measurements reduces knowledge about soil loss. In some cases, researchers find often diffic...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Zibeline International
2019-02-01
|
| Series: | Malaysian Journal of Geosciences |
| Subjects: | |
| Online Access: | https://myjgeosc.com/archives/2mjg2019/2mjg2019-07-11.pdf |
| _version_ | 1819097199158493184 |
|---|---|
| author | K. Khanchoul Z.A. Boukhrissa |
| author_facet | K. Khanchoul Z.A. Boukhrissa |
| author_sort | K. Khanchoul |
| collection | DOAJ |
| description | Many studies on sediment transport have been carried out on Algerian rivers but few studies have been undertaken in catchments of the Northeast of Algeria. The scarcity or discontinuity on sediment transport measurements reduces knowledge about soil loss. In some cases, researchers find often difficulties to apply the most suitable methods to estimate sediment load. The present work represents an assessment of suspended sediment yield from the Saf Saf catchment (322 km2) over 39 years. Long-term annual suspended sediment loads are estimated using non-linear power model, developed on mean discharge class technique as a sediment rating curve. There is a challenge to estimate suspended sediment load in the Saf Saf catchment, which is distinguished by rapid discharge variation. A second aim is to examine monthly and annual variations in discharge, suspended concentration, rainfall and load in this river and to find causes for these variations. The results show that the mean annual sediment yield is equal to 477 T km-2 yr-1 during the study period. Moreover, the long term variability analysis of sediment load seems to be very high from year to year depending on climatic conditions. The analysis of annual sediment load shows a decreasing trend along 39 years, mainly from 1997. Most sediment loads are transported during the winter season, which represents 78% of the total sediment load. The understanding of sediment transport relationships gained from this study should provide a good starting point for researchers and policymakers to begin addressing sediment issues within the catchment. |
| first_indexed | 2024-12-22T00:11:17Z |
| format | Article |
| id | doaj.art-7cfdc6544c1f4f3c995021148fd5521a |
| institution | Directory Open Access Journal |
| issn | 2521-0920 2521-0602 |
| language | English |
| last_indexed | 2024-12-22T00:11:17Z |
| publishDate | 2019-02-01 |
| publisher | Zibeline International |
| record_format | Article |
| series | Malaysian Journal of Geosciences |
| spelling | doaj.art-7cfdc6544c1f4f3c995021148fd5521a2022-12-21T18:45:26ZengZibeline InternationalMalaysian Journal of Geosciences2521-09202521-06022019-02-0132071110.26480/mjg.02.2019.07.11ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIAK. KhanchoulZ.A. BoukhrissaMany studies on sediment transport have been carried out on Algerian rivers but few studies have been undertaken in catchments of the Northeast of Algeria. The scarcity or discontinuity on sediment transport measurements reduces knowledge about soil loss. In some cases, researchers find often difficulties to apply the most suitable methods to estimate sediment load. The present work represents an assessment of suspended sediment yield from the Saf Saf catchment (322 km2) over 39 years. Long-term annual suspended sediment loads are estimated using non-linear power model, developed on mean discharge class technique as a sediment rating curve. There is a challenge to estimate suspended sediment load in the Saf Saf catchment, which is distinguished by rapid discharge variation. A second aim is to examine monthly and annual variations in discharge, suspended concentration, rainfall and load in this river and to find causes for these variations. The results show that the mean annual sediment yield is equal to 477 T km-2 yr-1 during the study period. Moreover, the long term variability analysis of sediment load seems to be very high from year to year depending on climatic conditions. The analysis of annual sediment load shows a decreasing trend along 39 years, mainly from 1997. Most sediment loads are transported during the winter season, which represents 78% of the total sediment load. The understanding of sediment transport relationships gained from this study should provide a good starting point for researchers and policymakers to begin addressing sediment issues within the catchment.https://myjgeosc.com/archives/2mjg2019/2mjg2019-07-11.pdfNortheastern AlgeriaCatchmentSediment rating curveSediment load prediction. |
| spellingShingle | K. Khanchoul Z.A. Boukhrissa ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA Malaysian Journal of Geosciences Northeastern Algeria Catchment Sediment rating curve Sediment load prediction. |
| title | ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA |
| title_full | ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA |
| title_fullStr | ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA |
| title_full_unstemmed | ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA |
| title_short | ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA |
| title_sort | assessing suspended sediment yield in the saf saf gauged catchment northeastern algeria |
| topic | Northeastern Algeria Catchment Sediment rating curve Sediment load prediction. |
| url | https://myjgeosc.com/archives/2mjg2019/2mjg2019-07-11.pdf |
| work_keys_str_mv | AT kkhanchoul assessingsuspendedsedimentyieldinthesafsafgaugedcatchmentnortheasternalgeria AT zaboukhrissa assessingsuspendedsedimentyieldinthesafsafgaugedcatchmentnortheasternalgeria |