A New Open Data Open Modeling Framework for the Geosciences Community (Invited)
Abstract
A prototype Open Hydrospheric Modeling Framework (OHMF), also called Open Data Open Modeling framework, has been developed to address two key modeling challenges faced by the broad research community: (1) accessing external data from diverse sources and (2) execution, coupling, and evaluation/intercomparison of various and complex models. The former is achieved via the Open Data architecture, while the latter is achieved via the Open Modeling architecture. The Open Data architecture adopts a common internal data model and representation, to facilitate the integration of various external data sources into OHMF, using Data Agents that handle remote data access protocols (e.g., OPeNDAP, Web services), metadata standards, and source-specific implementations. These Data Agents hide the heterogeneity of the external data sources and provide a common interface to the OHMF system core. The Open Modeling architecture allows different models or modules to be easily integrated into OHMF. The OHMF architectural design offers a general many-to-many connectivity between individual models and external data sources, instead of one-to-one connectivity from data access to model simulation results. OHMF adopts a graphical scientific workflow, offers tools to re-scale in space and time, and provides multi-scale data fusion and assimilation functionality. Notably, the OHMF system employs a strategy that does not require re-compiling or adding interface codes for a user's model to be integrated. Thus, a corresponding model agent can be easily developed by a user. Once an agent is available for a model, it can be shared and used by others. An example will be presented to illustrate the prototype OHMF system and the automatic flow from accessing data to model simulation results in a user-friendly workflow-controlled environment.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2013
- Bibcode:
- 2013AGUFM.H11E1204L
- Keywords:
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- 1908 INFORMATICS Cyberinfrastructure;
- 1940 INFORMATICS Machine-to-machine communication;
- 1902 INFORMATICS Community modeling frameworks;
- 1998 INFORMATICS Workflow