Hydrological network

Lecture Hydraulics and hydrology training - Chapter 3: Pavement drainage - pipe network sizing, after studying this section will help you understand: develop basin hydrology flowing to the structure(s) you are designing; know the different types of grate inlets, catch basins, and manholes; complete inlet spacing calculations using the wsdot spreadsheet.

26p huangminghao_1902 27-02-2022 20 3   Download

This paper present the test on applying Shallow neuron network for flood forcasting in Vu Gia Thu Bon river basin. The result show comparetable with the complex hydrological and hydraudynamic model.

10p nguyenmyhuyen90 04-03-2021 22 0   Download

Ma River is the biggest in the Central of Viet Nam with the length of 512 km and stretching over two latitudes and longitudes, therefore, the basin’s meteorological and hydrological regime is very complicated. The current situation of hydro-meteorological network in the basin is unevenly distributed with a high density in the downstream, sparse or not in the upstream particularly a part of basin belongs Lao PDR’s territory that are challenges for flood forecasting and hydrological research.

14p quenchua5 14-05-2020 17 1   Download

Water resource assessment involved various variables that can be simplified and tackled by developing a suitable mathematical model. Rainfall-Runoff (RR) modeling considered as a major hydrologic process and is essential for water resources management. This study presents the development of rainfall-runoff model based on artificial neural networks (ANNs) models in Shipra river basin of Madhya Pradesh. The ability of model was evaluated based on sum of squares error (SSE) and relative error.

9p caygaocaolon4 04-04-2020 25 1   Download

The water is an essential component of human life and survival of plants and animals. Estimation of evaporation is very important in arid and semi-arid region where the shortage of water occurs. It plays an important role for planning and management of water resources projects, necessary for scheduling of irrigation and in planning farm irrigation systems. It is a very important component of hydrologic cycle and water resources problems.

9p caygaocaolon4 01-04-2020 17 1   Download

Watersheds are natural hydrological entities that cover a specific aerial expanse of land surface from which the rainfall runoff flows to a defined drain, channel, stream or river at any particular point. In the last two decades, watershed management has gained the top most priority in water resources sector necessitating delineation of watersheds upto mini watershed level in order to take up watershed development and management programmes. Prerequisite for watershed management is knowledge of watershed characteristics like slope, relief, aerial extent and drainage networks.

11p nguaconbaynhay4 22-03-2020 32 1   Download

Rainfall is the most complex and difficult elements of hydrological cycle to understand and to model due to the complexity of atmospheric process. Long term prediction of rainfall is important for country like India where economy is mainly depends on agriculture.

15p nguaconbaynhay4 22-03-2020 8 1   Download

The present investigation intends to examinations the morphometric attributes of Ozat River basin to comprehend the hydrogeological behavior and influence on hydrology of the basin. The basic and derived morphometric parameters (linear, areal and relief aspects of drainage network) for the basin were determined using ASTER DEM (30 m resolution),remotely sensed images of Linear Imaging Self Scanner III (LISS III) and Geographic Information System (GIS).

21p caygaocaolon3 27-02-2020 29 2   Download

Hydrological modelling is a powerful technique of hydrologic system investigation for both the research hydrologists and the practicing water resources engineers involved in the planning and development of integrated approach for management of water resources. In present study, the observed rainfall and runoff data of 2010, 2011, 2013 and 2014years were used as input data. In ANN, input data was divided in 70 per cent, 15 per cent and 15 per cent for training, testing and validation purpose, respectively.

7p nguathienthan2 19-12-2019 23 0   Download

Precipitation records often suffer from missing data values for certain time periods due to various reasons, one of them being the malfunctioning of rain gauges. This is an important issue in practical hydrology as it affects the continuity of rainfall data. The missing data values ultimately influence the results of hydrologic studies that use rainfall data as one of the input variables. Therefore, it is crucial to estimate the missing rainfall data for qualitative hydrologic assessment.

9p nguaconbaynhay1 04-12-2019 22 2   Download

This paper was based on high temporal resolution of water discharge and suspended sediment concentration at Can Tho and My Thuan stations during the 2009-2016 period, showed that the water discharge and sediment supplies by the Mekong strongly varied, and influenced by ENSO events (El Nino Southern Oscillation).

6p vivinci2711 20-08-2019 21 2   Download

In the framework of the program "Asian Cities Climate Change Resilience Network" funded by Rockefeller Foundation, Vietnam Institute of Hydrology, Meteorology and Environment carried out this study with the aim to strongly support the development of action plan to respond to climate change for Quy Nhon city. The study developed climate change (temperature and rainfall) and sea level rise scenarios corresponding to some key emission scenarios, namely A1FI, A2 and B2. Impacts of climate change on main sectors such as water resources, agriculture and tourism were also assessed.

8p dem_thanh 22-12-2012 68 5   Download

Research over the past decade has demonstrated the feasibility of extracting topographic information of hydrological interest directly from digital elevation models (DEM). Techniques are available for extracting slope properties, catchment areas, drainage divides, channel networks and other data (Jenson and Domingue, 1988; Mark, 1988; Moore et al., 1991; Martz and Garbrecht, 1992). These techniques are faster and provide more precise and reproducible measurements than traditional manual techniques applied to topographic maps (Tribe, 1991)....

256p 951628473 07-05-2012 93 25   Download