The final section is the main aim of the research focuses on predicting the flow of water, short-term forecasting model for the basin's irrigated Xin's Upper Nan. The joint development, between zero water resources and the environment. Yat-sen University PRC And researchers from the Meteorological Department This model is a model that uses space distribution of rainfall - runoff. (Rainfall-runoff) divided by the Nile Basin, Upper Nan water into 10 sub and using Thomas Nanking Oakham (Muskingum method) to calculate the runoff at the N1, a runoff of the watershed. Making it possible to predict the rate of water flow, short for 3 hours and 6 hours, the water level gauging station N1 import data contain data of rainfall and evaporation of water every 3 hours from the measuring station of the Meteorological Department in the Nan River Basin. And water level and flow of water from the N1 and N64 to the Irrigation Department. The calculation parameters used in the model year 2533 to 2553 and forecasts to test the flow rate of water use from 1 November 2555 to 31 August May. . Prof. 2557 result was powerful in its application in forecasting the rate of flow of water in the watershed, the Upper advance 6 hours and 12 hours as well
from this research that modeling synthesizer that's effective. Most applications for predicting the flow of water in the watershed, the Upper advance 6 hours and 12 hours, and if the import forecast rainfall Advance 3 hours from modeling to numerical weather prediction has. coupled with a hydrological model that details the specific area. Is able to predict the flow rate of the water 48 hours in advance at the rate forecast by the flow of water more than 24 hours in advance so the accuracy is reduced. Especially in the case of an increase in the rate of water flow quickly in a short time to make a lot of mistakes in forecasting.
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