WASP富营养化水质模型在GIS中的完全集成研究

模型与GIS的结合是水质模拟研究的发展趋势，但完全集成方式面临许多技术难点。通过分析WASP富营养化模型的原理，剖析其程序源代码的核心，并对其核心算法进行重新编程开发。把GIS擅长的工作完全交给GIS、把模型擅长的工作完全交给模型，模型从底层对GIS属性数据库进行直接读写，GIS对模型的起始和中间过程直接控制，实现了WASP富营养化水质模型在GIS中的完全集成。完全集成后，为WASP增加LH OAT全局参数敏感性分析功能。LH OAT全局参数敏感性分析方法集成了LH抽样与随机OAT方法的优点，在随机OAT的基础上融入LH抽样法，保证参数敏感性分析的强壮性及有效性。但LH OAT方法必须依靠复杂的计算机程序来实现，因为没有通用程序而限制了其推广应用。为此我们设计了LH OAT方法的通用程序，提高了水质模拟的性能和应用范围。这为模型与GIS的完全集成研究提供了成功案例和问题解决的新思路

COMPLETE INTEGRATION OF GIS WITH EUTROPHICATION MODEL OF WASP

Integration of model and GIS is the developing trend in water quality modeling,but the fully integration faces many difficulties.The study has realized the complete integration of GIS with eutrophication model of WASP by reprogramming the core algorithm for eutrophication model of WASP.The main ideas are to leave these functions to GIS which are strong on GIS and to leave these functions to Model which are strong on Model.The Model program directly reads and writes the properties database of GIS from the underlying.The GIS have direct control of its beginning,end and middle of the process.One new function is added,LH-OAT sensitivity analysis of the global parameters function.The LH-OAT sensitivity analysis method for the global parameters integrates the advantages of the LH sampling method with a random OAT method to ensure the robustness and effectiveness of the parameters.However,LH-OAT method must rely on complex computer program to achieve;its application is limited because there are no generic procedures currently available in computer software.Therefore,we develop the generic procedures to apply LH-OAT method.The research provides a successful case and new ideas for the fully integration of model and GIS.