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In the first of them, the hydrological study , it is about carrying out a collection of data and statistical analysis to obtain different rainfall or flows associated with probabilities of occurrence of phenomena, that is, the study of precipitation or flow with respect to a time of return. For this first postulate, there are different standardized methods from which either precipitation data or flow data could be extracted directly, such as: 1.- Empirical methods . Which consist of the analysis based on known data such as rainfall in rainfall stations, gauging stations.
Where depending on the starting data for Oman Email List analysis, precipitation or flow will be obtained, and from these known data obtain the desired data. , and which are represented in the form of a hydrograph or in the form of flow. An example of application for this typology would be the application of Gumbel's method. Gumbel method (Source: ResearchGate) 2.- Hydrometric methods. Which consists of the use of a formulation in which known characteristic data of the basin and associated precipitation intensities (precipitation can be obtained from the previous method, or from known applications), flow rates of a specific basin will be obtained.
The standardized method for this type of calculation is called the Rational or Hydrometeorological Method , and can be consulted in instruction 5.2-IC on surface drainage. This is recommended by CEDEX, and included in the instructions of the Ministry of Public Works. This illustration shows the definition of the basins, and the estimation, where appropriate, of the flows. Illustration 3. Definition of basins and estimation of flows Following the rational method, the flow rate would be obtained as follows: 3.- Computer methods. There are other methods that combine different equations in one program or software, such as HecHMS.
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发表于 2024-2-15 14:31:13
