CAJ | 학술논문

传统的单机环境和封闭式网络环境由于有限的资源利用能力,难以充分支持分散地学数据、模型等资源的共享与应用集成.基于网络环境的信息交换特点,提出了分布式地理空间模型共享的服务体系.该体系以数据、模型、元数据等互操作要素为核心,通过网络将数据、模型等网络节点进行开放式耦合.针对地理空间模型服务的互操作问题,提出了分布式环境下的模型共享服务交互接口,该接口定义了模型服务元数据、模型服务的交互操作、模型服务的通讯方式等交互规则,尽可能地降低模型服务与模型终端之间在数据交换、功能调用等方面的互操作困难.为了降低将模型共享为模型服务的实现难度,设计和开发了地理空间模型共享平台,并介绍了在该平台上发布地理空间模型的2种方法.最后介绍了研究成果在Prairie生态模型共享方面的应用实践.
전통적단궤배경화봉폐식망락배경유우유한적자원이용능력,난이충분지지분산지학수거、모형등자원적공향여응용집성.기우망락배경적신식교환특점,제출료분포식지리공간모형공향적복무체계.해체계이수거、모형、원수거등호조작요소위핵심,통과망락장수거、모형등망락절점진행개방식우합.침대지리공간모형복무적호조작문제,제출료분포식배경하적모형공향복무교호접구,해접구정의료모형복무원수거、모형복무적교호조작、모형복무적통신방식등교호규칙,진가능지강저모형복무여모형종단지간재수거교환、공능조용등방면적호조작곤난.위료강저장모형공향위모형복무적실현난도,설계화개발료지리공간모형공향평태,병개소료재해평태상발포지리공간모형적2충방법.최후개소료연구성과재Prairie생태모형공향방면적응용실천.
Numerous geospatial computational models have been developed based on sound principles and published in journals or presented in conferences. However modelers have made few advances in the development of computable modules that facilitate sharing during model development or utilization. Constraints hampering development of model sharing technology includes limitations on computing, storage, and connectivity; traditional stand-alone and closed network systems cannot fully support sharing and integrating geospatial models. To address this need, we have identified methods for sharing geospatial computational models using Service Oriented Architecture (SOA) techniques and open geospatial standards. The service-oriented model sharing service is accessible using any tools or systems compliant with open geospatial standards, making it possible to utilize vast scientific resources available from around the world to solve highly sophisticated application problems. The methods also allow model services to be empowered by diverse computational devices and technologies, such as portable devices and GRID computing infrastructures. Based on the generic and abstract operations and data structures required for Web Processing Service (WPS) standards, we developed an interactive interface for model sharing to help reduce interoperability problems for model use. Geospatial computational models are shared on model services, where the computational processes provided by models can be accessed through tools and systems compliant with WPS. We developed a platform to help modelers publish individual models in a simplified and efficient way. Finally, we illustrate our technique using wetland hydrological models we developed for the prairie pothole region of North America.