Raster-based derivation of a flood runoff susceptibility map using the revised runoff curve number (CN) for the Kuantan watershed, Malaysia

Akbari, Abolghasem; Samah, Azizan Abu; Daryabor, Farshid

doi:10.1007/s12665-016-6186-0

Cited by 11 publications

(5 citation statements)

References 22 publications

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“…In previous studies, the CN method has been applied several times to calculate runoff depth on a pixel level (e.g. Melesse and Shih, 2002;Akbari et al, 2016;Deshmukh et al, 2013;Ebrahimian et al, 2009;Kumar et al, 2016). However, this is mostly done for smaller catchments than the Lake Victoria catchment and for pixel resolutions of around 30 m. To our knowledge, there is one study that assessed the mean annual runoff and spatial runoff depth in Tanzania (one of the countries adjacent to Lake Victoria) with the CN method with a very coarse resolution of at least 50 km by 50 km (Mdee, 2015).…”

Section: Discussionmentioning

confidence: 99%

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Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Vanderkelen

Lipzig

Thiery

2018

Hydrol. Earth Syst. Sci.

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Abstract. Lake Victoria is the largest lake in Africa and one of the two major sources of the Nile river. The water level of Lake Victoria is determined by its water balance, consisting of precipitation on the lake, evaporation from the lake, inflow from tributary rivers and lake outflow, controlled by two hydropower dams. Due to a scarcity of in situ observations, previous estimates of individual water balance terms are characterized by substantial uncertainties, which means that the water balance is often not closed independently. In this first part of a two-paper series, we present a water balance model for Lake Victoria, using state-of-the-art remote sensing observations, high-resolution reanalysis downscaling and outflow values recorded at the dam. The uncalibrated computation of the individual water balance terms yields lake level fluctuations that closely match the levels retrieved from satellite altimetry. Precipitation is the main cause of seasonal and interannual lake level fluctuations, and on average causes the lake level to rise from May to July and to fall from August to December. Finally, our results indicate that the 2004–2005 drop in lake level can be about half attributed to a drought in the Lake Victoria Basin and about half to an enhanced outflow, highlighting the sensitivity of the lake level to human operations at the outflow dam.

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Section: Discussionmentioning

confidence: 99%

“…PERSIANN is considered the most reliable product providing precipitation estimates over the African continent (Awange et al, 2015). The precipitation over the lake and the basin is retrieved using shapefiles (Akurut et al, 2014).…”

Section: Precipitation Datamentioning

confidence: 99%

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Vanderkelen

Lipzig

Thiery

2018

Hydrol. Earth Syst. Sci.

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show abstract

“…Melesse and Shih, 2002;Akbari et al, 2016;Deshmukh et al, 2013;Ebrahimian et al, 2009;Kumar et al, 2016). However, this is mostly done for smaller catchments than the Lake Victoria catchment and for pixel resolutions of around 30 meters.…”

Section: Discussionmentioning

confidence: 99%

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Vanderkelen¹,

Lipzig²,

Thiery³

2018

Preprint

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Abstract. Lake Victoria is the largest lake in Africa and one of the two major sources of the Nile River. The water level of Lake Victoria is determined by its water balance, consisting of precipitation on the lake, evaporation from the lake, inflow from tributary rivers and lake outflow, controlled by two hydropower dams. Due to scarcity of in-situ observations, previous estimates of individual water balance terms are characterised by substantial uncertainties, which makes that the water balance is often not closed independently. Here we present a water balance model for Lake Victoria, using state-of-the-art remote sensing Precipitation is the main cause of seasonal and inter-annual lake level fluctuations, and on average causes the lake level to rise from May to July and to fall from August to December. Finally, our results indicate that the 2004-2005 drop in lake level can be attributed about half to a drought in the Lake Victoria Basin and about half to an enhanced outflow, highlighting the sensitivity 10 of the lake level to human operations at the outflow dam.

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“…CN is a comprehensive parameter that reflects the characteristics of the basin before rainfall. It is connected with the degree of soil moisture, slope, vegetation, soil type, and land use in previous period [9]. According to the CN value matrix established in the study of Wuhan, the CN value of different types of land could be determined [10].…”

Section: Soil Conservation Service (Scs) Modelmentioning

confidence: 99%

Study on the Runoff Simulation of Urban Rainstorm Based on SCS Model

Chen¹,

Yang²,

Ma³

2018

dtcse

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Abstract. Rainstorms have been frequently occurred and caused serious urban waterlogging disaster in China recent years. A runoff simulation method has been explored based on the rainfall intensity formula, as well as the combination of Chicago Rainfall Process Line Formula and SCS model in this paper. Because of its heavy rainstorm, Tangxunhulake basin in Wuhan was selected as the study area and to simulate the runoff process in different return periods. The results show that the cumulative runoff ranges from 22.3 to 45.3 million m 3 , and the net increased storage volume ranges from 10.02to 32.87 million m 3 ; the return flow period of more than 20 years would affect the surrounding urban areas and cause damage to some extent. The proposed method of this study is simple and reliable, and can provide a great reference for the waterlogging calculation in urban areas.

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Raster-based derivation of a flood runoff susceptibility map using the revised runoff curve number (CN) for the Kuantan watershed, Malaysia

Cited by 11 publications

References 22 publications

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Modelling the water balance of Lake Victoria (East Africa) – Part 1: Observational analysis

Study on the Runoff Simulation of Urban Rainstorm Based on SCS Model

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