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4 Data Management
Pages 62-70

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From page 62...
... 4 Data Management A successful, international Arctic Observing Network access data in formats and languages that are understandable (AON) must link sensors, observers, data, and users across and useful to them.
From page 63...
... DATA MANAGEMENT 63 the data management strategy of the AON, it is imperative not to reinvent the wheel. Much has been written about sci Box 4.1 entific data management (e.g., NRC, 1995; CCSDS, 2002; An Imaginary Journey Through the NSF/LOC, 2003; ICSU, 2004; Hankin and the DMAC Steer Arctic Observing Network Portal ing Committee, 2005; IPY, 2005; NSB, 2005)
From page 64...
... 64 TOWARD AN INTEGRATED ARCTIC OBSERVING NETWORK The data management committee would initially assess who acquired the data. This includes determining what level and build upon the success of similar common-purpose data of accessibility is needed, what tools are needed, and what portals (e.g., the Antarctic Master Directory [Leicester et al., data synthesis and value-added support is required.
From page 65...
... DATA MANAGEMENT 65 Box 4.2 Comparison of Centralized and Distributed Data Holding Approaches When should data holdings be distributed, and when should they be centralized? Any vision for the future of data management must grapple with rapidly changing foundation technologies such as computation, storage, bandwidth, and algorithmic complexity.
From page 66...
... As new instrumentation and ment, to the observations, and finally to the derived products. approaches are developed, data formats evolve (SEEDS For example, many satellite products have error characteristics [Strategic Evolution of Earth Science Enterprise Data of derived geospatial variables that could be fully character- System]
From page 67...
... DATA MANAGEMENT 67 Standardization can be as critical for data as it is for data formats. Consider, for example, common references such as Box 4.4 time and location.
From page 68...
... 68 TOWARD AN INTEGRATED ARCTIC OBSERVING NETWORK Given that data collectors sometimes have difficulty pro- Recommendation: The AON data management system viding metadata with their datasets, the ability to develop should provide interactive, direct access to data through and disseminate software for creating metadata through a a single portal. centralized repository is advantageous.
From page 69...
... DATA MANAGEMENT 69 and it is necessary to archive raw measurements for future proactive in encouraging PIs to plan for submission of their processing and reprocessing. data and to encourage timely acquisition of data and Within the AON data management system, a mechanism metadata for LTA.
From page 70...
... 70 TOWARD AN INTEGRATED ARCTIC OBSERVING NETWORK There are many instances when users have difficulty grate results from these resources is lacking. Because this accessing large datasets or do not have the knowledge to infrastructure will need to accommodate a broad spectrum work with such observations.

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