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Streamflow prediction in ungauged catchments in the east coast of peninsular Malaysia using multivariate statistical techniques
Salaudeen Abdul Razaq1, Tarmizi Ismail2, Arien Heryansyah3, Umar Faruk Lawan4, Mahiuddin Alamgir5, Sahar Hadi Pour6.
The east coast of Peninsular Malaysia is one of the most vulnerable regions of Malaysia to
hydrological disasters, which is believed to become more vulnerable due to climate
change. Studies to have better understandings of the hydrological processes in the region
are therefore, of paramount importance for disaster risk mitigation. However, unavailability of
long-term river discharge data is one of the major constraints of hydrologic studies in the
area. The major objective of this study is to predict river discharge in ungauged river basins in
the study area. For this purpose, a set of multiple linear regression equations and exponential
functions have been developed, which are expressed in the forms of multivariate equations.
Available streamflow data along with other catchment characteristics from gauged
catchments were used to develop the equations and were subsequently applied to the
poorly gauged or ungauged catchments within the study area for prediction of streamflow.
In this present study, 4 to 7 explanatory variables were selected as the input variables, which
comprise of climatic, geomorphologic, geographic characteristics, soil properties, land use
pattern and land cover of the area. Ten flow metrics as maximum, 0.05, 0.10, 0.25, 0.50, 0.75,
0.90, and 0.95, mean and minimum were therefore predicted. Thus, the results of the
developed multivariate equations revealed the model to be capable of predicting the
desired flow metrics at ungauged catchments in the area under consideration with
reasonable accuracy.
Affiliation:
- Abu Bakar Tafawa Balewa University, Nigeria
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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