Problems of rainfall-runoff modelling in arid and semiarid regions

Pilgrim, David H.; Chapman, Tom; Doran, D. G.

doi:10.1080/02626668809491261

Cited by 382 publications

(254 citation statements)

References 37 publications

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“…For perennial streams, a comparative evaluation of parameter calibration quality (Colischonn et al 2007), as mimicking the long-term FDC or the median AFDC as the main goal of calibration, was carried out. For intermittent and ephemeral streams, calibration was carried out only for FDCs (Pilgrim et al 1988, De Boer 1992, Hughes 1995. The main objective was to assess the ability of the Rio Grande model to reproduce the flow intermittence condition, since its original structure had not been designed for this particular purpose.…”

Section: Indirect Calibration Using Synthetic Fdcsmentioning

confidence: 99%

Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall–runoff model

Costa

Fernandes

Naghettini

2014

Hydrological Sciences Journal

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Editor D. KoutsoyiannisCitation Costa, V., Fernandes, W., and Naghettini, M., 2013. Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall-runoff model. Hydrological Sciences Journal, 59 (2), 262-277.Abstract One of the main challenges faced by hydrologists and water engineers is the estimation of variables needed for water resources planning and management in ungauged river basins. To this end, techniques for transposing information, such as hydrological regional analyses, are widely employed. A method is presented for regionalizing flow-duration curves (FDCs) in perennial, intermittent and ephemeral rivers, based on the extended Burr XII probability distribution. This distribution shows great flexibility to fit data, with accurate reproduction of flow extremes. The performance analysis showed that, in general, the regional models are able to synthesize FDCs in ungauged basins, with a few possible drawbacks in the application of the method to intermittent and ephemeral rivers. In addition to the regional models, we summarize the experience of using synthetic FDCs for the indirect calibration of the Rio Grande rainfall-runoff model parameters in ungauged basins.

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Section: Indirect Calibration Using Synthetic Fdcsmentioning

confidence: 99%

Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall–runoff model

Costa

Fernandes

Naghettini

2014

Hydrological Sciences Journal

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“…In general, arid and mountainous regions of the world, including north-west China, have few to no monitoring stations. Pilgrim et al (1988) found that the effective density of hydrometric stations in an arid region of Australia is one station per 10 000 km 2 , compared to one station per 2300 km 2 overall. Quality of data is also compromised in arid regions, due to difficulties in maintaining the stations.…”

Section: Introductionmentioning

confidence: 99%

“…Endorheic basins are extremely sensitive to land cover and climate variability (Meybeck, 2003). Therefore, understanding the water cycle in these areas is extremely important for the long-term sustainability (Pilgrim et al, 1988) of desert oases in north-west China.…”

Section: Introductionmentioning

confidence: 99%

Relating seasonal dynamics of enhanced vegetation index to the recycling of water in two endorheic river basins in north-west China

Matin

Bourque

2015

Hydrol. Earth Syst. Sci.

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Abstract. This study associates the dynamics of enhanced vegetation index in lowland desert oases to the recycling of water in two endorheic (hydrologically closed) river basins in Gansu Province, north-west China, along a gradient of elevation zones and land cover types. Each river basin was subdivided into four elevation zones representative of (i) oasis plains and foothills, and (ii) low-, (iii) mid-, and (iv) highmountain elevations. Comparison of monthly vegetation phenology with precipitation and snowmelt dynamics within the same basins over a 10-year period (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009) suggested that the onset of the precipitation season (cumulative % precipitation > 7-8 %) in the mountains, typically in late April to early May, was triggered by the greening of vegetation and increased production of water vapour at the base of the mountains. Seasonal evolution of in-mountain precipitation correlated fairly well with the temporal variation in oasisvegetation coverage and phenology characterised by monthly enhanced vegetation index, yielding coefficients of determination of 0.65 and 0.85 for the two basins. Convergent cross-mapping of related time series indicated bi-directional causality (feedback) between the two variables. Comparisons between same-zone monthly precipitation amounts and enhanced vegetation index provided weaker correlations. Start of the growing season in the oases was shown to coincide with favourable spring warming and discharge of meltwater from low-to mid-elevations of the Qilian Mountains (zones 1 and 2) in mid-to-late March. In terms of plant requirement for water, mid-seasonal development of oasis vegetation was seen to be controlled to a greater extent by the production of rain in the mountains. Comparison of water volumes associated with in-basin production of rainfall and snowmelt with that associated with evaporation seemed to suggest that about 90 % of the available liquid water (i.e. mostly in the form of direct rainfall and snowmelt in the mountains) was recycled locally.

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“…On one hand, paleohydrological methods are not suitable for small dynamic basins such as ephemeral streams, while hydrological-hydraulic methods require large amounts of hydrological data which are not available in the majority of these systems. In fact, several authors have demonstrated the inadequacy of these methods in predicting extreme floods in Mediterranean basins (Ballais, Garry, & Masson, 2005;Chave, 2002;Pilgrim, Chapman, & Doran, 1988;Wheater, Sorooshian, & Sharma, 2006).…”

Section: Hazard Assessment and Mappingmentioning

confidence: 99%

Flood risk assessment and mapping in peri-urban Mediterranean environments using hydrogeomorphology. Application to ephemeral streams in the Valencia region (eastern Spain)

Belmonte¹,

Soriano-García²

2012

Landscape and Urban Planning

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a b s t r a c tThis paper proposes a methodology for mapping flood risk in ephemeral streams, based on assessing flood hazards and global exposure. The method has been applied to the peri-urban area of Valencia, extended over the floodplains of the Barranco del Carraixet and Rambla de Poyo catchments. Hazard was assessed using hydrogeomorphological methods. Global exposure was estimated as a combination between the economic value of land use and human exposure, following a previous study carried out by Camarasa, A.M., López, M.J. and Soriano, J., 2011. Mapping temporally variable exposure to flooding in small Mediterranean basins using land-use indicators, Applied Geography 31 (19), 136-145. Synthesis mapping was elaborated to spatially rank flood risks, in terms of their hazard and exposure components. The method is simple, effective and easily comparable. The results reveal diverse risk configurations for each floodplain, even though both are in the vicinity of Valencia city (metropolitan area). This flood risk mapping method is very useful for land use planning because it enables swift diagnosis of the nature of risks and can supports decision making by risk managers and urban planners.

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Problems of rainfall-runoff modelling in arid and semiarid regions

Cited by 382 publications

References 37 publications

Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall–runoff model

Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall–runoff model

Relating seasonal dynamics of enhanced vegetation index to the recycling of water in two endorheic river basins in north-west China

Flood risk assessment and mapping in peri-urban Mediterranean environments using hydrogeomorphology. Application to ephemeral streams in the Valencia region (eastern Spain)

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