D.Zarris@itia.ntua.gr
+30-2107722840
Παροχή Συμβουλευτικών Υπηρεσιών για την Κατάρτιση του 2ου Σχεδίου Διαχείρισης Λεκάνης Απορροής Ποταμού της Κύπρου για την Εφαρμογή της Οδηγίας 2000/60/ΕΚ και για την Κατάρτιση του Σχεδίου Διαχείρισης Κινδύνων Πλημμύρας για την Εφαρμογή της Οδηγίας 2007/60
Commissioned by: Depatment of Water Development of Cyprus
Contractor: LDK & ECOS
Estimation of losses from DXX canal in the irrigation network of Lower Acheloos
Duration: January 1999–December 1999
Commissioned by: Division of Land Reclamation Works
Contractor: NAMA
D. Zarris, and D. Koutsoyiannis, Evaluating sediment yield estimations from large-scale hydrologic systems using the rating curve concept, RMZ - Materials and Geoenvironment, 52 (1), 157–159, 2005.
A new approach in studying sediment yield from large hydrologic systems is presented that utilizes sediment rating curves in conjunction with reservoir sediment deposits downstream of the measurement site. It is shown that the rating curves, even with inadequate measurements, can provide a good basis for the computation of sediment yield.
Full text: http://www.itia.ntua.gr/en/getfile/740/1/documents/2005RMZSedimentYield.pdf (195 KB)
See also: http://www.rmz-mg.com/contents.htm#Volume%2052,%20No.%201%20(August%202005)
Works that cite this document: View on Google Scholar or ResearchGate
Other works that reference this work (this list might be obsolete):
| 1. | Nadal-Romero, E., J. F. Martínez-Murillo, M. Vanmaercke and J. Poesen, Scale-dependency of sediment yield from badland areas in Mediterranean environments, Progress in Physical Geography, 35 (3), 297-332, 2011. |
| 2. | Vanmaercke, M., J. Poesen, G. Verstraeten, J. de Vente and F. Ocakoglu, Sediment yield in Europe: Spatial patterns and scale dependency, Geomorphology, 13 (3-4), 142-161, 2011. |
| 3. | Zarris, D., M. Vlastara and D. Panagoulia, Sediment delivery assessment for a transboundary Mediterranean catchment: The example of Nestos River catchment, Water Resources Management, 25 (14), 3785-3803, 2011. |
E. Lykoudi, and D. Zarris, The influence of drainage network formation and characteristics over a catchment's sediment yield, 2nd International Conference on Fluvial Hydraulics, Naples, Italy, 793–800, University of Napoli - Federico II, 2004.
The influence of certain geomorphologic parameters, such as the bifurcation ratio, on a catchment's sediment yield is rarely reported in the literature in contrast to the catchment area, which is assumed as a predominant morphological parameter for quantifying catchment sediment yields. In this paper, the influence of the catchment bifurcation ratio on the sediment yield is examined. Specifically, the mean weighted bifurcation ratio is proposed so as to give more weight to the first order streams of the overall drainage pattern in the context of sediment productivity and delivery. Mean annual sediment yields from four adjacent catchments in Western Greece have been estimated. It is shown that in catchments with higher bifurcation ratios there is an increase in sediment yield estimates, which is mainly accounted for the neo-tectonic activity and the geomorphologic processes in the area.
Full text: http://www.itia.ntua.gr/en/getfile/724/1/documents/2004-lykoudi-and-zarris.pdf (338 KB)
D. Zarris, E. Lykoudi, and D. Koutsoyiannis, Sediment yield estimation of a hydrological basin using measurements of reservoir deposits: A case study for the Kremasta reservoir, Western Greece, Proceedings of the 5th International Conference of European Water Resources Association: "Water Resources Management in the Era of Transition", edited by G. Tsakiris, Athens, 338–345, doi:10.13140/RG.2.1.2382.1047, European Water Resources Association, 2002.
Sediment discharge measurements in streams are quite rare even in technologically advanced countries, whilst comprehensive physically based models are generally unable to reliably estimate sediment yield of large-scale hydrological basins. A more realistic and reliable alternative method for sediment yield estimation, suitable for watersheds with a dam at the outlet, is the hydrographic surveying of the reservoir's invert and comparison with the one prior to the dam construction resulting to the computation of sediment deposits' volume and mass. This method has been applied to the Acheloos River basin with the hydrographic surveying of Kremasta, a large reservoir with net storage capacity exceeding 3 cubic kilometers. The sediment yield has been estimated not only for the total watershed but also for each of the three tributaries (Acheloos R., Agrafiotis R. and Megdobas R.). Besides, the soil erosion of the watershed has been estimated using an implementation of the Universal Soil Loss Equation on a geographical information system. The sediment delivery ratios have been finally computed combining the sediment yield and soil erosion estimates.
Full text: http://www.itia.ntua.gr/en/getfile/551/1/documents/2002EWRASediment.pdf (156 KB)
Additional material:
See also: http://dx.doi.org/10.13140/RG.2.1.2382.1047
Works that cite this document: View on Google Scholar or ResearchGate
Other works that reference this work (this list might be obsolete):
| 1. | #Zarris, D., and E. Lykoudi, Analysis of sediment discharge data of the upper Acheloos river, Proceedings of the 7th Panhellenic Geografical Conference of the Hellenic Geographical Society (7PGC/HGS), Mytilene, Greece, 1-8, 2004. |
| 2. | #de Araujo, J.C., and D.W. Knight, Assessment of sediment yield of watersheds by reservoir survey and simulation modelling in Brazilian semiarid environment, IAHS-AISH Publication 299, 124-130, 2005. |
| 3. | de Araujo, J.C. and D.W. Knight, A review of the measurement of sediment yield in different scales, Rem: Rev. Esc. Minas, ISSN 0370-4467, 58(3), 257-265, 2005. |
| 4. | #Zarris, D., E. Lykoudi and D. Panagoulia, Assessing the impacts of sediment yield on the sustainability of major hydraulic systems, Proceedings of Protection and Restoration of the Environment VIII (PROTECTION2006), Mykonos, Greece, 2006. |
| 5. | #Kosmas, C., N. Danalatos, D. Kosma and P. Kosmopoulou, Greece, Ch. 23 in Soil Erosion in Europe, Wiley, 2006. |
| 6. | #Papaioannou, G., F.Maris and A. Loukas, Estimation of the erosion of the mountainous watershed of river Kosynthos, Proceedings of the EYE-EEDYP Conference “Integrated Water Resource Management in Climate Change Conditions” (eds. A. Liakopoulos, V. Kanakoudis, E. Anastasiadou-Partheniou and V. Tsihrintzis), Volos, Greece, 453-460, 2009. |
| 7. | Psilovikos, A., and S. Margoni, An empirical model of sediment deposition processes in Lake Kerkini, Central Macedonia Greece, Environmental Monitoring and Assessment, 164 (1-4), 573-592, 2010. |
| 8. | Karyotis, T. and C. Kosmas, Soil erosion and conservation in Greece, European Society for Soil Conservation Newsletter, 1, 11-25, 2011. |
| 9. | Zarris, D., M. Vlastara and D. Panagoulia, Sediment delivery assessment for a transboundary Mediterranean catchment: The example of Nestos River catchment, Water Resources Management, 25 (14), 3785-3803, 2011. |
| 10. | #Vasiliou, A., F. Maris and G. Varsami, Estimation of sedimentation to the torrential sedimentation fan of the Dadia stream with the use of the TopRunDF and the GIS models, Advances in the Research of Aquatic Environment (eds. N. Lambrakis, G. Stournaras, K. Katsanou), Springer, Berlin, Doi: 10.1007/978-3-642-19902-8_24, 207-214, 2011. |
| 11. | Stefanidis, P., and S. Stefanidis, Reservoir sedimentation and mitigation measures, Lakes & Reservoirs: Research & Management, 17 (2), 113-117, 2012. |
| 12. | #Maris, F., P. Machtis and Α. Vasileiou, Estimation of the Mesovouno dam watershed sedimentation tendency, Proceedings of the 2nd Joint Conference of EYE-EEDYP "Integrated Water Resources Management for Sustainable Development" (Ed.: P. Giannopoulos and A. Dimas), 1238-1249, Patras, Greece, 2012. |
| 13. | Zhou, Q., S. Yang, C. Zhao, M. Cai and L. Ya, A soil erosion assessment of the Upper Mekong River in Yunnan Province, China, Mountain Research and Development, 34 (1), 36-47, 2014. |
| 14. | Kokpinar, M. A., A. B. Altan-Sakarya, S. Y. Kumcu and M. Gogus, Assessment of sediment yield estimations for large watershed areas: a case study for the Seyhan, Demirköprü, and Hirfanlı reservoirs in Turkey, Hydrological Sciences Journal, 10.1080/02626667.2014.959954, 2014. |
D. Zarris, E. Lykoudi, and D. Koutsoyiannis, The evolution of river sediment deposits in reservoirs as a dynamic phenomenon - Application to the Kremasta reservoir, Proceedings of the 6th Panhellenic Conference of the Greek Geographical Society, Thessaloniki, 2, 363–370, doi:10.13140/RG.2.1.1726.7446, Aristotle University of Thessaloniki, Greek Geographical Society, 2002.
The depositional pattern and the temporal evolution of incoming sediments in the Kremasta reservoir is studied. To this aim, an hydrographic survey has been carried out using a differential Global Positioning System (GPS) technique and a typical fathometer. The evolution of the depositional pattern within the reservoir depends mainly on the incoming intense floods, the properties of the river sediments and the stage of the reservoir. Low reservoir stage allows erosion of deposited sediments which subsequently are carried further downstream. An illustration of this pattern is given in this paper. The spatial distribution of the sediment deposits in the reservoir suggests that at least for large reservoirs, the concept of designing the dead volume near the dam is under serious doubt. Specifically, for the reservoir under study, the deposits tend to occupy a significant (in absolute terms) part of the reservoir's useful volume whilst the nominal dead volume is almost empty of sediments.
Full text: http://www.itia.ntua.gr/en/getfile/547/1/documents/2002GeogrSediment.pdf (429 KB)
Additional material:
D. Zarris, D. Koutsoyiannis, and G. Karavokiros, A simple stochastic rainfall disaggregation scheme for urban drainage modelling, Proceedings of the 4th International Conference on Developments in Urban Drainage Modelling, edited by D. Butler and C. Maksimovic, London, 85–92, doi:10.13140/RG.2.1.3004.6969, International Association of Water Quality, International Association of Hydraulic Research, UNESCO, Imperial College, London, 1998.
An alternative method to both the design storm approach and the continuous simulation of historic or synthetic storms is presented. The method is based on, and uses as the only input, the intensity-duration-frequency (IDF) curves of the particular urban catchment of interest. The main concept is to keep the design storm approach for the determination of the total characteristics of the design storm event, i.e. duration and depth extracted from the IDF curves of the particular region, and use a disaggregation technique to generate a ensemble of alternative hyetographs (instead of adopting a unique arbitrary design time profile). The stochastically generated hyetographs are then entered into a rainfall - runoff model and then routed through the sewer network in order to simulate the hydraulic performance of the sewer network. This enables the determination of the conditional distribution of the outflow peak, which can then be utilised for studying the design characteristics and the behaviour of the sewer network.
Full text: http://www.itia.ntua.gr/en/getfile/28/1/documents/1998UDMRain.pdf (306 KB)
See also: http://dx.doi.org/10.13140/RG.2.1.3004.6969
Other works that reference this work (this list might be obsolete):
| 1. | #Grimaldi, S., F. Serinaldi, F. Napolitano and L. Ubertini, A 3-copula function application for design hyetograph analysis, IAHS-AISH Publication, (293), 203-211, 2005. |
| 2. | Grimaldi, S., and F. Serinaldi, Design hyetograph analysis with 3-copula function, Hydrological Sciences Journal, 51 (2), 223-238, 2006. |
| 3. | Calvo, B.. and F. Savi, A real-world application of Monte Carlo procedure for debris flow risk assessment, Computers & Geosciences, 35(5), 967–977, 2009. |
D. Zarris, and D. Koutsoyiannis, Estimating suspended sediment yield based on reservoir hydrographic survey, rating relationships and distributed hydrological modelling, European Geosciences Union General Assembly 2005, Geophysical Research Abstracts, Vol. 7, Vienna, European Geosciences Union, 2005.
Acheloos River, located in Western Greece, is discharging at Kremasta Reservoir (catchment 1760 km2). The sediment deposits in the reservoir were measured during the year 1998 and the mean annual sediment discharge was calculated equal to 68 kg/s. The Avlaki gauging station, run by the Public Power Corporation (PPC) of Greece, is located a few kilometers upstream of the reservoir's entrance (catchment 1358 km2). Sediment discharge measurements were taken during 1966-1970 whereas daily river stages were recorded with frequent intervals without measurements. A distributed hydrologic model (the MIKE SHE model) was applied to fill in the periods with missing mean daily discharges from 1966 to 1998. Two alternative rating curves were deduced from the sediment discharge measurements, the first one with a unique power law expression for the whole set of discharges and the second with different power relations for two discharge classes above and below a threshold roughly corresponding to the bankfull discharge. It is assumed that the rating relationships are valid for the whole time span of the simulation since the catchment has undergone insignificant land use changes. The application of the first rating curve to the mean daily discharge yields mean annual sediment discharge equal to 13.5 kg/s, whereas the application of the different power relations for two discharge classes yields a corresponding value of 73.3 kg/s. The first equation seriously underestimates the sediment discharge whereas the second one results in an estimate close to that of hydrographic survey. This indicates that sediment rating curves can give good estimates if applied carefully, otherwise can result in serious inaccuracies.
Full text: http://www.itia.ntua.gr/en/getfile/725/1/documents/2005EGUSuspSedimentsAbs.pdf (29 KB)
D. Zarris, E. Lykoudi, D. Koutsoyiannis, and S. E. Poulos, Channel change and sediment movement after a major level drawdown at Kremasta reservoir, Western Greece, EGS-AGU-EUG Joint Assembly, Geophysical Research Abstracts, Vol. 5, Nice, doi:10.13140/RG.2.2.21953.76643, European Geophysical Society, 2003.
A major level drawdown of about 20 m, due to low inflows and reservoir operation, was experienced at the time interval between the hydrographic survey of the Kremasta reservoir (July 1999) and the collection of two sedimentary cores from the reservoir's invert (September 2001). The minimum reservoir level was recorded in December 2000. The sedimentary cores were taken at the Acheloos River mouth within a meandering reservoir section of about 2.3 km distance from each other. At the latter time, a significant channel change was observed at the upstream core cross section with respect to its configuration in July 1999. At the maximum level drawdown, this cross section was actually upstream of the reservoir and the surface of the deposited sediment was exposed while the downstream one was only marginally submerged. This change of the channel profile is attributed to a significant erosion of loose, fine grained, deposited sediment during the first winter intense floods around the time of the reservoirSs minimum level. The channel geometry changed completely and the vertical scour of the deposited sediments was at least 2 m. The eroded sediment was transported downstream to the reservoir's interior and re-deposited according to flow velocity regime. The downstream core is investigated for possible signs of deposition of the eroded sediment. Apart from the analysis of the recent reservoir drawdown, cores were also described and correlated using lithology and sedimentary structures. The sediment deposits are composed of poorly graded sands to low plasticity clays and the horizontal stratification implies major flood events, possibly associated with the historical drawdowns of the reservoir (e.g. silty sand on top of low plasticity clay). The above observations illustrate the dynamic behaviour of the reservoir siltation as a result of reservoir operation, intense flood events and incoming sediment load. The analyses of the sedimentary cores' lithological sections, can serve as a useful tool for reconstructing the siltation history of the Kremasta reservoir.
Full text:
D. Koutsoyiannis, and D. Zarris, Simulation of rainfall events for design purposes with inadequate data, 24th General Assembly of the European Geophysical Society, Geophysical Research Abstracts, Vol. 1, The Hague, 296, doi:10.13140/RG.2.1.2797.8482, European Geophysical Society, 1999.
Recently, the new concept of using continuous simulation in hydraulic design attracts interest. However, the absence of long rainfall records with appropriate temporal resolution, coupled with the requirement of simulating a vast number of synthetic events to calculate the flood peak for a given exceedance probability have become a barrier to the use of such approaches. Therefore, the use of design storms based on local intensity-duration-frequency (IDF) curves remains at present the most popular method not only for its simplicity but mainly because most frequently the IDF curves represent the only available information on local rainfall. Also, IDF based approaches assure the reproduction of rainfall extremes whereas continuous simulation models may fail to do so. An intermediate method lying in between the traditional design storm approach and the continuous simulation approach is presented. The method is based on, and uses as the only input, the IDF curves of a particular catchment. The main concept is to keep the design storm approach for the determination of the total characteristics of the design storm event, extracted from the IDF curves, and use a disaggregation technique to generate an ensemble of alternative hyetographs. The stochastically generated hyetographs are then entered into a rainfall - runoff model and then routed through the hydrosystem in order to simulate its hydraulic performance. The proposed method is demonstrated via examples involving sewer systems and dam spillways.
Related works:
Full text:
See also: http://dx.doi.org/10.13140/RG.2.1.2797.8482
Other works that reference this work (this list might be obsolete):
| 1. | Keller Filho, T., J. Zullo Jr. and P.R.S.D.R. Lima, Analysis of the transition between dry and wet days through third-order Markov chains, Pesquisa Agropecuaria Brasileira, 41(9), 1341-1349, 2006. |
| 2. | Blanc, J., J. W. Hall, N. Roche, R. J. Dawson, Y. Cesses, A. Burton and C. G. Kilsby, Enhanced efficiency of pluvial flood risk estimation in urban areas using spatial-temporal rainfall simulations, Journal of Flood Risk Management, 5 (2), 143-152, 2012. |
D. Zarris, and D. Koutsoyiannis, Occurrence and general characteristics of deposits in the Athens storm sewers, International Conference on Sewer Solids: Characteristics, Movement, Effects and Control, Dundee, U.K., doi:10.13140/RG.2.1.3780.8885, 1995.
The sewer system of the city of Athens is composed of a separate network at the most part and of a very minor segment of combined network serving the oldest part of the city. The maintenance of the network is inadequate. Therefore, no information is available about the deposits of sewer sediments within the network. A recent pilot investigation is summarised here, which showed that: (1) Deposits do exist in the Athens storm sewer system and may constitute a serious problem for the proper hydraulic function of the network. (2) The sediment discharge capacity of the network during moderate storm events seems to be modest, as deposits of very fine material were traced at certain locations. (3) The finer deposits have high organic loads, which may have been caused by illegal connections of domestic and industrial sewers. These deposits are likely to develop some kind of cohesiveness because dry periods are usually long for the Athens climate.
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D. Zarris, Analysis of the environmental flow requirement incorporating the effective discharge concept, Proceedings of the 6th International Symposium on Environmental Hydraulics, Athens, 1125–1130, International Association of Hydraulic Research, National Technical University of Athens, 2010.
The determination of a river reach’s environmental flow is a key point for the sustainable development of water resources and environmental restoration. The effective discharge is theoretically the discharge that forms and maintains in the long termthe shape of the river section. It is linked with various ecological processes in streams that assure good ecological status. The effective discharge is calculated for the Evinos R. catchment in Central Greece and conclusions are drawn in respect to the management of Evinos Dam upstream of the gauging station.
Full text: http://www.itia.ntua.gr/en/getfile/992/1/documents/ISEH_Zarris.pdf (187 KB)
D. Zarris, E. Lykoudi, and D. Koutsoyiannis, Appraisal of river sediment deposits in reservoirs of hydropower dams, Workshop for the presentation of research projects of PPC/DAYE, Athens, doi:10.13140/RG.2.2.10239.20649, Department for the Development of Hydroelectric Works – Public Power Corporation, 2002.
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D. Zarris, Investigation of sediment deposition in hydroelectric reservoirs, PhD thesis, 540 pages, Department of Water Resources and Environmental Engineering – National Technical University of Athens, Athens, 2019.
Full text: http://www.itia.ntua.gr/en/getfile/1978/1/documents/PhD_Thesis_DZ_Final.pdf (74238 KB)
D. Zarris, Sewer sediment - Application to the Athens network, Diploma thesis, Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, Athens, 1995.
Full text: http://www.itia.ntua.gr/en/getfile/441/1/documents/Dipl_Zarris.pdf (8842 KB)
D. Zarris, E. Lykoudi, and D. Koutsoyiannis, Final Report, Appraisal of river sediment deposits in reservoirs of hydropower dams, Contractor: Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, 243 pages, October 2001.
Related project: Appraisal of river sediment deposits in reservoirs of hydropower dams
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Other works that reference this work (this list might be obsolete):
| 1. | Sigalos, G., V. Loukaidi, S. Dasaklis and A. Alexouli-Livaditi, Assessment of the quantity of the material transported downstream of Sperchios River, Bulletin of the Geological Society of Greece, XLIII (2), 737-745, 2010. |
| 2. | Panagopoulos, Y., C. Makropoulos and M. Mimikou, Diffuse surface water pollution: driving factors for different geoclimatic regions, Water Resources Management, 25 (14), 3635-3660, 2011. |
| 3. | Karamesouti, M., G.P. Petropoulos, I.D. Papanikolaou, O. Kairis and K. Kosmas, Erosion rate predictions from PESERA and RUSLE at a Mediterranean site before and after a wildfire: Comparison & implications, Geoderma, 261, 44-58, 2016. |
D. Zarris, and D. Koutsoyiannis, Final Report of Phase A, Appraisal of river sediment deposits in reservoirs of hydropower dams, 97 pages, Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, Athens, October 1999.
Related project: Appraisal of river sediment deposits in reservoirs of hydropower dams
Full text: http://www.itia.ntua.gr/en/getfile/259/1/documents/er9_1.pdf (25374 KB)
D. Zarris, E. Rozos, and D. Sakellariades, Description of Hydrosystems, Evaluation of Management of the Water Resources of Sterea Hellas - Phase 3, Report 36, 160 pages, Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, Athens, January 1999.
Related project: Evaluation of Management of the Water Resources of Sterea Hellas - Phase 3
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R. Mavrodimou, D. Zarris, and E. Rozos, Review of studies of water resources expoitation and management, Evaluation of Management of the Water Resources of Sterea Hellas - Phase 3, Report 33, 65 pages, Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, Athens, January 1999.
Related project: Evaluation of Management of the Water Resources of Sterea Hellas - Phase 3
Full text: http://www.itia.ntua.gr/en/getfile/128/1/documents/er4_33.pdf (5713 KB)
D. Zarris, P. Anastassopoulou, and K. Alexopoulou, Updating of river discharge information, Upgrading and updating of hydrological information of Thessalia, Report 2, 170 pages, Department of Water Resources, Hydraulic and Maritime Engineering – National Technical University of Athens, Athens, March 1997.
Related project: Upgrading and updating of hydrological information of Thessalia
Full text: http://www.itia.ntua.gr/en/getfile/184/1/documents/er5_2.pdf (25464 KB)
D. Koutsoyiannis, N. Mamassis, D. Zarris, J. Gavriilidis, T. Papathanasiadis, and I. Nalbantis, Flow measurements and estimation of losses from DXX irrigation canal of Lower Acheloos, Estimation of losses from DXX canal in the irrigation network of Lower Acheloos, Commissioner: Division of Land Reclamation Works – General Secretariat of Public Works – Ministry of Environment, Planning and Public Works, Contractor: NAMA, 20 pages, Division of Land Reclamation Works – General Secretariat of Public Works – Ministry of Environment, Planning and Public Works, 1999.
Related project: Estimation of losses from DXX canal in the irrigation network of Lower Acheloos
Full text: http://www.itia.ntua.gr/en/getfile/138/1/documents/1999KatoAxeloosDXX.pdf (503 KB)