The Study Of Computer Software System For Hydrological Data Reorganization Of Irrigated Area And Its Existing Situation

Combined with hydrological data reorganization of Qingtongxia irrigation area, the problem existing in hydrological data reorganization, the requirement of consumer and the difficulty in reorganizing hydrological data using computer are analyzed deeply and carefully in this paper. Modern statistics, computational mathematics means and computer technology are used to work out the scheme of developing computer software system of hydrological data reorganization, to study the key technology of overcoming the difficult problems. Computer software system for hydrological data reorganization in irrigated area, which will be in common use, is developed firstly. In this system, the multi-curve (including simple curve) fitting equation and its graph can be generated automatically. This paves the way for the reorganization and management of the hydrological data of irrigated area in the modernized direction.The difficulty in computer simulation of multi-curve fitting lies in data analysis and the judgment of adaptive situation of the curves, that is, dividing the period of calculating time. Through a large amount of research, exploration, analysis and comparison, iterative classification method of solving the equation, the statistical method of dividing the period of calculating time and its key technology are put forward. The difficulties in computer simulation of multi-curve fitting are solved well. This has certain innovation and break-through. In addition through computer-based curve simulation method, not only fitting equation but also fitting graph can beobtained. It is convenient, shortcut, simple, and creative.This system can carry on hydrological data reorganization, which are various, huge, complicated. It can offer a lot of functions of the storage, analysis, calculation, fetching, chart drawing (output), search of hydrology information. Especially data base management system has the characteristic of advancement, reliability, saving computer memory, convenience in transferring data.In addition, the hydrological data reorganization of branch channels of irrigated area and the calculation of water quantity and water rate can be done using this system.This system is of great specialty and practicality. Its application tolO trunk channels and more than 70 branch channels of Qingtongxia has proved that this software is reliable, practicable, common, scientific and reasonable. It has a good popularization value.