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Abstract Feng CC:
"Open hydrologic model for facilitating GIS and hydrologic model interoperability",
In GIS/EM4: 1-11, (Sep 2000)


Keywords   Open hydrologic model, hydrologic process component, hydrologic component semantics, component-based design.
Abstract   The importance of integrating geographic information system (GIS) and hydrologic modeling has been recognized in past decade. Considerable process has been made in integrating GIS and hydrologic models (Abel et al., 1994; Bennett, 1997; Goodchild, 1992). One of the goals of integration of these two subjects is to provide an interoperable environment that is able to support integration of any GIS functionality and hydrologic models (Bian, 1998). The recent accomplishment of Open GIS Consortium (OGC) has fulfilled this goal for GIS. The approach they proposed is the so-called pluggable computing model (Buehler and McKee, 1998). In this model, every GIS function is implemented as separate pluggable component. Each of them has well defined interfaces that allow communication with each other. In contrast to the achievement in GIS, most of the hydrologic models are still closed, monolithic systems. The monolithic nature of hydrologic models limits integration of the two subjects to a "per-model" solution, i.e. the integrated system is not portable to others (Bian, 1998). This is because a hydrologic model has no capability to communicate readily with other hydrologic models, let alone GIS. This problem is normally overcome by developing an interface that connects GIS and the hydrologic model. However, a modeling project usually requires multiple data sets and hydrologic models. The diversity of these data sets and hydrologic models makes it impractical to build interfaces for each of them. This problem is worsened by the fact that a hydrologic model is constantly modified to provide a better modeling result. To address the aforementioned problems, a concept termed open hydrologic model is proposed in this paper in order to facilitate interoperability between GIS and hydrologic modeling. The basic idea is to "open" the monolithic hydrologic model into units of components that can communicate directly with each other. Interoperability between GIS and hydrologic models can thus be achieved through these components. The purpose of this paper is to specify the requirements for open hydrologic model and to lay a preliminary framework tailored to facilitate interoperability of GIS and hydrologic modeling
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Name Affiliation Home page e-mail Total pubs 
Feng CCGraduate student Department of Geography State University of New York at Buffalo.  1

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References included in article:

 19 records found.
Order of appearence Full citation SRCosmos Link 
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