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| Titel |
The AmeriFlux data activity and data system: an evolving collection of data management techniques, tools, products and services |
| VerfasserIn |
T. A. Boden, M. Krassovski, B. Yang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2193-0856
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Instrumentation, Methods and Data Systems ; 2, no. 1 ; Nr. 2, no. 1 (2013-06-27), S.165-176 |
| Datensatznummer |
250017762
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| Publikation (Nr.) |
 copernicus.org/gi-2-165-2013.pdf |
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| Zusammenfassung |
| The Carbon Dioxide Information Analysis Center (CDIAC) at Oak Ridge National
Laboratory (ORNL), USA has provided scientific data management support for
the US Department of Energy and international climate change science since
1982. Among the many data archived and available from CDIAC are collections
from long-term measurement projects. One current example is the AmeriFlux
measurement network. AmeriFlux provides continuous measurements from forests,
grasslands, wetlands, and croplands in North, Central, and South America and
offers important insight about carbon cycling in terrestrial ecosystems. To
successfully manage AmeriFlux data and support climate change research, CDIAC
has designed flexible data systems using proven technologies and standards
blended with new, evolving technologies and standards. The AmeriFlux data
system, comprised primarily of a relational database, a PHP-based data
interface and a FTP server, offers a broad suite of AmeriFlux data. The data
interface allows users to query the AmeriFlux collection in a variety of ways
and then subset, visualize and download the data. From the perspective of
data stewardship, on the other hand, this system is designed for CDIAC to
easily control database content, automate data movement, track data
provenance, manage metadata content, and handle frequent additions and
corrections. CDIAC and researchers in the flux community developed data
submission guidelines to enhance the AmeriFlux data collection, enable
automated data processing, and promote standardization across regional
networks. Both continuous flux and meteorological data and irregular
biological data collected at AmeriFlux sites are carefully scrutinized by
CDIAC using established quality-control algorithms before the data are
ingested into the AmeriFlux data system. Other tasks at CDIAC include
reformatting and standardizing the diverse and heterogeneous datasets
received from individual sites into a uniform and consistent network
database, generating high-level derived products to meet the current demands
from a broad user group, and developing new products in anticipation of
future needs. In this paper, we share our approaches to meet the challenges
of standardizing, archiving and delivering quality, well-documented AmeriFlux
data worldwide to benefit others with similar challenges of handling diverse
climate change data, to further heighten awareness and use of an outstanding
ecological data resource, and to highlight expanded software engineering
applications being used for climate change measurement data. |
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