Temat: maximum discharge - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of Changes in the Maximum Flow of Kazakhstan Plain Rivers
Autorzy:: Arystambekova, Dinara
Jussupbekov, Daulet
Skakova, Aizhan
Kujibayeva, Gulnar
Mamirova, Kulash
Powiązania:: https://bibliotekanauki.pl/articles/123460.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: maximum flow
maximum discharge
spring season
Kazakhstan
reservoirs
total integrated curve
Opis:: This paper presents an assessment of changes in maximum flow values (maximum discharge, m³/s) of the spring flood caused by human activities on the rivers Zhayyk, Ilek and Tobyl. Statistical characteristics of the maximum discharge of the spring flood of these rivers for the period of 1940-2012, 1938-2012, before and after the construction of the reservoirs, as well as for the long-term period of supervision were analyzed based on the actual as well as restored data. The values of the maximum discharge of the spring flood of various provisions were calculated. The total integrated curves of the maximum discharge of the spring flood were constructed.
Źródło:: Journal of Ecological Engineering; 2019, 20, 5; 229-234
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Flood frequency analysis for an ungauged Himalayan river basin using different methods: a case study of Modi Khola, Parbat, Nepal
Autorzy:: Acharya, Bibek
Joshi, Bisesh
Powiązania:: https://bibliotekanauki.pl/articles/1445122.pdf
Data publikacji:: 2020
Wydawca:: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:: return periods
ungauged basin
design flood
hydrologic data
probability distribution functions
annual maximum discharge
peaks above threshold
Opis:: Predicting flood discharges in the rivers of an ungauged basin is tedious because essential hydrological data is lacking. In mountainous countries like Nepal, the design of hydraulic structures in these steeply sloped rivers is of prime importance for flood control, as well as for electricity generation where hydraulic head is gained over short, steep reaches. This study illustrates a variety of approaches that can be used to perform flood frequency analysis of typical ungauged mountainous rivers, where discharge data are available from hydrologically similar catchments. The various methods are evaluated by comparing the goodness of fit of an array of hydrologic distribution functions. From each probability density function or regional empirical method, we predict the multi-year return periods for floods, information that is generally required to design the hydraulic structures. The analysis was done based on the annual maxima, peaks above threshold, and widely used regional empirical methods. This analysis was accomplished using the discharge data of Nayapul station near Jhapre Bagar collected from the Department of Hydrology and Meteorology, Government of Nepal, Kathmandu. The analysis and results of this study paved the way for the hydraulic design of water systems in the ungauged study region and demonstrated how the information acquired can be used for water resource management in catchments with similar hydrologic features.
Źródło:: Meteorology Hydrology and Water Management. Research and Operational Applications; 2020, 8, 2; 46-51
2299-3835
2353-5652
Pojawia się w:: Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The best synthetic unit hydrograph for peak discharge analysis. Case: the Bengawan Solo River, section Dengkeng–Pusur
Autorzy:: Sirait, Nova D.
Sobriyah, -
Hadiani, Rintis
Ikhsan, Cahyono
Powiązania:: https://bibliotekanauki.pl/articles/1844289.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Bengawan Solo River
maximum flood discharge
the SUH of SCS
the SUH of Nakayasu
the SUH of Gama I
Opis:: This paper aims to analyse the flood discharge based on the Synthetic Unit Hydrograph (SUH), using the Soil Conservation Service method (SCS), the SUH of Nakayasu method, and the SUH of Gama I method. Modelling formed the basis of the research conducted on the Bengawan Solo River, Indonesia. The embankment construction on the Dengkeng–Pusur Section was designed as a method of flood control in 1988. The problem was that around its location are densely populated cities, industrial areas, and agricultural areas. In order to measure the risk of embankment failure and water structure planning in general, it is necessary to analyse the maximum flood discharge. There are several methods for analysing maximum flood discharge, so finding a suitable method is essential due to the lack of measuring tools to calculate flood discharge in some areas. The calculation is compared with the observation data at the Serenan AWLR station, which is in the Dengkeng–Pusur section. The observation rainfall data was covered a 20 year period (1999–2018). According to the method used, the analysis is based on series data on four rainfall stations, the watershed characteristics, and other parameters. Furthermore, the maximum flood discharge from the calculation is compared with the observational data at the Serenan station. The result shows that the best SUH is Gama I method compared to the observation maximum flood discharge in AWLR Serenan Station, with an 8.0% error. The other method, the SUH Nakayasu method with a 16.6% error, and the SUH SCS method with a 39.5% error.
Źródło:: Journal of Water and Land Development; 2021, 50; 56-63
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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