Development of Hydrologic and Geographic Database for Yodo River Basin

Abstract

Data acquisition, preprocessing, management, manipulation & analysis and product generation are essential parts of any research application. To save researchers and engineers from the enormous efforts, time and money, we should have an open structured hydrologic database containing various types of hydrologic and geographic data, which is independent of any specific project application and could be easily accessed by multiple users. In this paper we are presenting the use of the Relational Data Base Management System (RDBMS) to arrange the hydrologic and meteorologic time series data and the Geographic Information System (GIS) to integrate many different kinds of information for a particular objective about the spatial objects in an area. Our objective is to store and manage large amount of data involved in the rainfall-runoff processes. As a case study we have processed the data for the Yodo River basin and as one of applications we have illustrated a system to estimate hourly evapotranspiration for river basins by using RDBMS and GIS techniques.