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Report on the Global Data Assembly Center (GDAC) to the 12th GHRSST Science Team MeetingIn 2010/2011 the Global Data Assembly Center (GDAC) at NASA's Physical Oceanography Distributed Active Archive Center (PO.DAAC) continued its role as the primary clearinghouse and access node for operational Group for High Resolution Sea Surface Temperature (GHRSST) datastreams, as well as its collaborative role with the NOAA Long Term Stewardship and Reanalysis Facility (LTSRF) for archiving. Here we report on our data management activities and infrastructure improvements since the last science team meeting in June 2010.These include the implementation of all GHRSST datastreams in the new PO.DAAC Data Management and Archive System (DMAS) for more reliable and timely data access. GHRSST dataset metadata are now stored in a new database that has made the maintenance and quality improvement of metadata fields more straightforward. A content management system for a revised suite of PO.DAAC web pages allows dynamic access to a subset of these metadata fields for enhanced dataset description as well as discovery through a faceted search mechanism from the perspective of the user. From the discovery and metadata standpoint the GDAC has also implemented the NASA version of the OpenSearch protocol for searching for GHRSST granules and developed a web service to generate ISO 19115-2 compliant metadata records. Furthermore, the GDAC has continued to implement a new suite of tools and services for GHRSST datastreams including a Level 2 subsetter known as Dataminer, a revised POET Level 3/4 subsetter and visualization tool, a Google Earth interface to selected daily global Level 2 and Level 4 data, and experimented with a THREDDS catalog of GHRSST data collections. Finally we will summarize the expanding user and data statistics, and other metrics that we have collected over the last year demonstrating the broad user community and applications that the GHRSST project continues to serve via the GDAC distribution mechanisms. This report also serves by extension to summarize the activities of the GHRSST Data Assembly and Systems Technical Advisory Group (DAS-TAG).
Document ID
20120013165
Document Type
Conference Paper
External Source(s)
Authors
Armstrong, Edward M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bingham, Andrew (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Vazquez, Jorge (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Thompson, Charles (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Huang, Thomas (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Finch, Chris (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 26, 2013
Publication Date
June 27, 2011
Subject Category
Computer Systems
Meeting Information
12th GHRSST Science Team Meeting(Edinburgh, Scotlant)
Distribution Limits
Public
Copyright
Other
Keywords
sea surface temperature (SST)