The SAFRAN‐ISBA‐MODCOU hydrometeorological model applied over France

Habets, Florence; Boone, Aaron; Champeaux, Jean-Louis; Etchevers, Pierre; Franchistéguy, Laurent; Leblois, Étienne; Ledoux, Emmanuel; Moigne, Patrick Le; Martin, E.; Morel, Sophie; Noilhan, J.; Quintana-Seguí, Pere; Rousset-Regimbeau, Fabienne; Viennot, Pascal

doi:10.1029/2007jd008548

Cited by 264 publications

(263 citation statements)

References 38 publications

Supporting

Mentioning

250

Contrasting

Unclassified

Order By: Relevance

“…Various types of topological sorts have recently been used for river network routing: that of the SIM-France modeling system [Habets et al, 2008;David et al, 2011a] and the hydrologic sequence number [USEPA and USGS, 2010] for river network routing in U.S. river basins [David et al, 2011b[David et al, , 2013a[David et al, , 2013b. Topological sorts are also valuable for domain decomposition in parallel computing, as further developed below.…”

Section: 1002/2014wr016650mentioning

confidence: 99%

Enhanced fixed-size parallel speedup with the Muskingum method using a trans-boundary approach and a large subbasins approximation

et al. 2015

View full text Add to dashboard Cite

This study presents a new algorithm for parallel computation of river flow that builds on recent work demonstrating the relative independence of distant river reaches in the update step of the Muskingum method. The algorithm is designed to achieve enhanced fixed-size parallel speedup and uses a mathematical approximation applied at the boundaries of large subbasins. In order to use such an algorithm, a balanced domain decomposition method that differs from the traditional classifications of river reaches and subbasins and based on network topology is developed. An application of the algorithm and domain decomposition method to the Mississippi River Basin results in an eightfold decrease in computing time with 16 computing cores which is unprecedented for Muskingum-type algorithms applied in classic parallel-computing paradigms having a one-to-one relationship between cores and subbasins. An estimated 300 km between upstream and downstream reaches of subbasins guarantees the applicability of the algorithm in our study and motivates further investigation of domain decomposition methods.

show abstract

Section: 1002/2014wr016650mentioning

confidence: 99%

Enhanced fixed-size parallel speedup with the Muskingum method using a trans-boundary approach and a large subbasins approximation

et al. 2015

View full text Add to dashboard Cite

show abstract

“…(Zoccatelli et al, 2011). c The initial water content of the soil corresponds to the outputs of the SIM model (Habets et al, 2008). d NS = Nash-Sutcliffe coefficient.…”

Section: Spatial Moments Of Catchment Rainfallmentioning

confidence: 99%

Accounting for rainfall systematic spatial variability in flash flood forecasting

Douinot

Roux

Garambois

et al. 2016

Journal of Hydrology

View full text Add to dashboard Cite

OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 17444 Just as with the storms that cause them, flash floods are highly variable and non-linear phenomena in both time and space; hence understanding and anticipating the genesis of flash floods is far from straightforward. There is therefore a huge requirement for tools with the potential to provide advance warning of situations likely to lead to flash floods, and thus provide additional time for the flood forecasting services. The Flash Flood Guidance (FFG) method is used on US catchments to estimate the average number of inches of rainfall for given durations required to produce flash flooding. This rainfall amount is used afterwards as a flood warning threshold. In Europe, flash floods often occur on small catchments (approximately 100 km 2 ) and it has already been shown that the spatial variability of rainfall has a great impact on the catchment response (Le Lay and Saulnier, 2007). Therefore, in this study, an improved FFG method which accounts for rainfall spatial variability is proposed. The objectives of this paper are (i) to assess the FFG method applicability on French Mediterranean catchments with a distributed processoriented hydrological model and (ii) to assess the effect of the rainfall spatial variability on this method. The results confirm the influence of the spatial variability of rainfall events in relation with its interaction with soil properties.

show abstract

“…Concerning the transmissivity K ss , the spatial variability is taken from the hydraulic conductivity map. A continuous soil moisture model (SIM) (Habets et al, 2008) is used for the initialization of the soil moisture at the beginning of an event within MARINE model. The root zone soil moisture from SIM is used (Hu 2 index cf.…”

Section: Marine Flash Flood Physics-based Model and Calibrated Paramementioning

confidence: 99%

Parameter regionalization for a process-oriented distributed model dedicated to flash floods

Garambois

Roux

Larnier

et al. 2015

Journal of Hydrology

View full text Add to dashboard Cite

OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible.Parameter regionalization for a process-oriented distributed model dedicated to flash floods This contribution is one of the first studies about the regionalization of parameter sets for a rainfall-runoff model process-oriented and dedicated to flash floods. MARINE model performances are tested on a large database of 117 flash floods occurred during the last two decades in the French Mediterranean region. Given the scarcity of flash flood data, the dataset used in this study represents a large sample of hydrology and landscapes from Pyrenean, Mediterranean, Cévennes-Vivarais and Provence regions. Spatial proximity and similarity approaches with several combinations of descriptors are tested. Encouraging results are obtained with two similarity approaches based on physiographic descriptors with two and three donor catchments. There is only a small decrease of performance of 10% from cal/val to regionalization for these two methods. For 13 catchments out of 16 there is at least one flood event simulated with rather good performance. This study highlights the importance of hydrological information that is available in calibration events for a gauged catchment and from donor catchment(s) for regionalization. Moreover it is found that regionalization is easier for catchments with an apparently more regular behaviour. The most sensitive parameter of MARINE model, C Z , controlling soil volume and water balance, is rather well constrained by the two similarity approaches thanks to bedrock descriptors.

show abstract

The SAFRAN‐ISBA‐MODCOU hydrometeorological model applied over France

Cited by 264 publications

References 38 publications

Enhanced fixed-size parallel speedup with the Muskingum method using a trans-boundary approach and a large subbasins approximation

Enhanced fixed-size parallel speedup with the Muskingum method using a trans-boundary approach and a large subbasins approximation

Accounting for rainfall systematic spatial variability in flash flood forecasting

Parameter regionalization for a process-oriented distributed model dedicated to flash floods

Contact Info

Product

Resources

About