PANGAEA (data library)
Encyclopedia
PANGAEA - Data Publisher for Earth & Environmental Science is a digital data library
Data library
A data library refers to both the content and the services that foster use of collections of numeric, audio-visual, textual or geospatial for secondary use in research...

 and a data publisher for earth system science
Earth system science
Earth system science seeks to integrate various fields of academic study to understand the Earth as a system. It considers interaction between the atmosphere, hydrosphere, lithosphere , biosphere, and heliosphere....

. Data can be georeference
Georeference
To georeference something means to define its existence in physical space. That is, establishing its location in terms of map projections or coordinate systems. The term is used both when establishing the relation between raster or vector images and coordinates, and when determining the spatial...

d in time (date/time or geological age) and space (latitude, longitude, depth/height).

Scientific data are archived with related metainformation in a relational database (Sybase
Sybase
Sybase, an SAP company, is an enterprise software and services company offering software to manage, analyze, and mobilize information, using relational databases, analytics and data warehousing solutions and mobile applications development platforms....

) through an editorial system. Data are in Open Access and are distributed through web service
Web service
A Web service is a method of communication between two electronic devices over the web.The W3C defines a "Web service" as "a software system designed to support interoperable machine-to-machine interaction over a network". It has an interface described in a machine-processable format...

s in standard formats on the Internet through various search engines and portals. Data set descriptions (metadata) are conform to the ISO 19115
ISO 19115
ISO 19115 "Geographic Information - Metadata" is a standard of the International Organization for Standardization . It is a component of the series of ISO 191xx standards for Geospatial metadata. ISO 19115 defines how to describe geographical information and associated services, including...

 standard and are served in various further formats (e.g. Directory Interchange Format, Dublin Core
Dublin Core
The Dublin Core metadata terms are a set of vocabulary terms which can be used to describe resources for the purposes of discovery. The terms can be used to describe a full range of web resources: video, images, web pages etc and physical resources such as books and objects like artworks...

). They include a bibliographic citation and are persistently identified using Digital Object Identifier
Digital object identifier
A digital object identifier is a character string used to uniquely identify an object such as an electronic document. Metadata about the object is stored in association with the DOI name and this metadata may include a location, such as a URL, where the object can be found...

s (DOI). Identifier provision and long-term availability of data sets via library catalogs is ensured through a cooperation with the German National Library of Science and Technology (TIB). Retrieval of data sets is provided through a full text search
Full text search
In text retrieval, full text search refers to techniques for searching a single computer-stored document or a collection in a full text database...

 engine (based on Apache Lucene / panFMP). For efficient data compilations a data warehouse
Data warehouse
In computing, a data warehouse is a database used for reporting and analysis. The data stored in the warehouse is uploaded from the operational systems. The data may pass through an operational data store for additional operations before it is used in the DW for reporting.A data warehouse...

 is operated. Data descriptions are available through various protocols (OAI-PMH, Web Catalog Service
Web Catalog Service
The OGC Catalog Service defines common interfaces to discover, browse, and query metadata about data, services, and other potential resources.Web Catalog Service includes several profiles including Catalog Service - Web.-See also:*Web Map Service...

).

PANGAEA is hosted by the Alfred Wegener Institute for Polar and Marine Research
Alfred Wegener Institute for Polar and Marine Research
The Alfred Wegener Institute of Polar and Marine Research is a scientific organization located in Bremerhaven, Germany. The institute was founded in 1980 and is named after revolutionary meteorologist climatologist, and geologist Alfred Wegener...

 (AWI), Bremerhaven and the Center for Marine Environmental Sciences (MARUM), Bremen in Germany. The system is used by various international research projects from public funding as data repository and by the World Data Center for Marine Environmental Sciences (WDC-MARE) as long-term archive. The system was initially developed since 1987 and is operational on the Internet since 1995.

The MediaWiki
MediaWiki
MediaWiki is a popular free web-based wiki software application. Developed by the Wikimedia Foundation, it is used to run all of its projects, including Wikipedia, Wiktionary and Wikinews. Numerous other wikis around the world also use it to power their websites...

 software is used to operate a wiki
Wiki
A wiki is a website that allows the creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor. Wikis are typically powered by wiki software and are often used collaboratively by multiple users. Examples include...

as PANGAEA manual and reference.

Links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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