HR: 1340h
AN: IN33A-1171    [Abstracts]
TI: Federated Observatory "Sense and Response" Framework
AU: Chave, A
EM: alan@whoi.edu
AF: Woods Hole Oceangraphic Institution, Woods Hole Oceanographic Institution, Woods Hole, Ma 02543-1050 United States
AU: Arrott, M
EM: marrott@ucsd.edu
AF: Calit2, University of California, San Diego 9500 Gilman Drive, La Jolla, Ca 92093-0436 United States
AU: * Orcutt, J
EM: jorcutt@ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Drive, 0233, La Jolla, Ca 92093-0233 United States
AB: Ocean Science is at the beginning of the epoch of the "Instrumented Earth". From here on, there will be a continuous accessible digital "signal" that represents the "Now" state of the Earth systems. For the foreseeable future, this signal will grow in multidimensional and multivariate resolution and complexity. The primary goal of this activity is to provide scientists with the means to characterize and respond to emergent phenomena though continuous real-time monitoring and analysis of selected portions of Earth's signature. The overarching focus of the Ocean Observatory Services activity is the development of a "Sense and Response" framework that operates on a continuous basis in real-time in a controlled and comprehensive manner. This presentation addresses the designs and prototypes of the basic components an Ocean Observatory taking place within LOOKING using WS Resource Framework based SOA:  Data Stream Representation  Real-time Data Stream Processing  Instrument Management Data-Stream Representation The representations of data "sets" (data files) are often the focus of data management and archive systems, and only recently have efforts turned their attention to the unique characteristics and requirements of streaming data. In order for broad adoption of this essential data type by federated systems of ocean observatories enabling both producers and consumers of data streams to interoperate with technology independence the characteristics of data streams must defined and modeled Data-Stream Processing (DSP) Grid This activity is researching and prototyping a Data Stream processing capability that expands and contracts its capacity to meet the demands of dynamic and continuous real-time monitoring and analysis. The investigation is based on the hypothesis that workflow statements are the most likely expression of scientific inquiry in a continuous real-time observatory context. To this end, the project is focused on the integration of data stream, workflow and Grid technologies into a Data Stream Processing (DSP) Grid. The DSP Grid is conceptualized as a workflow engine with the capability to dynamically:  Marshal the required data stream resources,  Plan the decomposition of the process graph and  Dispatch the component work across Grid resources to maintain data stream processing in real-time. Instrument Management Within the context of a federated system of Ocean Observatories, the concept of an Instrument is central. Instruments participant in a broad range of relationships spanning numerous application domains, and are required to satisfy a complex set of interactions across a dynamic range of computational contexts. This encompasses deployment, configuration, calibration, integration into observing system, monitoring (e.g., determining instrument status) and remote interaction (e.g., changing sample rates, requesting data). Instrument management includes both coupled computational components (e.g., the bidirectional symbiotic relationship between simulation models and instrument operations) as well as traditional operator-directed instrument control. Instrument management is a central task in observing systems and cuts across all aspects of a observing system.
DE: 1600 GLOBAL CHANGE
DE: 9800 GENERAL OR MISCELLANEOUS
DE: 9820 Techniques applicable in three or more fields
SC: Earth and Space Science Informatics [IN]
MN: Fall Meeting 2005