U.S. Geosciences Information Network

USGIN Registry Service

Registries of persons and organizations are necessary as a resource to uniquely identify individuals, projects, organizations, and other kinds of entities in a federated system, with open world semantics and non-unique naming of resources.

Some registries required for interoperable distributed information system:

Service Types. The ISO19119 service metadata content model requires a 'ServiceType' property to categorize a service, but there seems to be no widely used registry that can provide and authoritative list of service types along with an identifier for the service type.The Canadian Geospatial Data Infrastructure (CGDI) started such a registry in 2006, but it currently (12/30/09) contains only 'WMS' and 'WFS', and does not seem to be maintained. The registry document is an xml/rdf document with bilingual (French, English) Dublin Core metadata describing the service types (xml document here)

USGIN Vocabulary Service Profile Home

The primary operational functions of a vocabulary service are:

1) to assign meaning to a given term (i.e. a token that represents a concept)

2) to provide terms related to a queried term

To be useful in a computer information system, these functions must be accessible through machine readable interface.

In addition, a vocabulary service might provide a variety of maintenance or stewardship functions, but these might not operate through the same web interface as the definition and query functions because of access control issues.

Shared vocabularies require an authoritative registry for reference purposes.

ETL Debug Blog

A group blog on implementing and debugging Extract-Transform-Load (ETL) efforts.

Post to this group blog about your Extract-Transform-Load (ETL) efforts.

Building a GeoSciML WFS Server

Development, testing and implementation of a WFS service that returns GeoSciML documents

I want to help make the process of building a GeoSciML WFS server easier. I'll be collecting links to relevant information, cookbooks, walkthroughs, etc. Hopefully this will chronicle my process of going from knowing practically nothing about how to implement a service to making one work.

USGIN CSW Profile Home

A web service interface to search metadata catalogs. With the funding of the GIN project, and its dependency on existing (GEON, NGMDB) or soon to exist (NGGDPP) hosts for catalog/discovery services, the specification for how catalog services will work is a high priority for community convergence. There are many benifits to the community offered by a standardized approach to registering and discovering geoscience information resources.

Discussion at the GIN kickoff workshop in Houston, and at a subsequent meeting with Steve Richard, Ashraf Memon and Kai Lin at SDSC, indicated that the Open Geospatial Consortium (OGC) Catalog Services for the Web (CSW) specification (07-006r1 Catalogue Services Specification v.2.0.2 ) offered an existing specification for catalog services that could meet requirements of all the interested parties.

U.S. Geoscience Information Network

The US Geoscience Information Network is a partnership of the Association of American State Geologists (AASG - state geological surveys) and the U.S. Geological Survey (USGS) whose purpose is to develop a national geoscience information framework that is distributed, interoperable, uses open source standards and common protocols, respects and acknowledges data ownership, fosters communities of practice to grow, and develops new web services and clients. The AASG and USGS have formed an interagency Steering Committee to pursue design and implementation of the Geoscience Information Network (GIN).  Within the context of this partnership, several activities are ongoing, including the NSF-funded geoscience interoperabilty project headquartered at the Arizona Geological Survey, the DOE-funded National Geothermal Database, headquartered at Boise State University, and development of the National Digital Catalog at the U. S. Geological Survey. We look forward to collaboration with other projects as they evolve to develop an integrated, consistent approach to the discovery and distribution of geoscience information via the intenet.
Contact Information

CSW Debug Blog

A group blog to discuss metadata Catalog Service for the Web (CSW) implementation experiences

Post to this group blog about your metadata Catalog Service for the Web (CSW) client and server implementation efforts and debugging sagas. I encourage occasional rants of the cathartic nature.



This web site provides information related to service profiles and implementation in development for the US Geoscience information network (USGIN). It is meant to be a site where developers can learn about the standard in use, the objectives of the application profiles being developed, software being used or tested for implementation of services, and details about particular implementations. Forums are provided for asking questions about the services, profiles, and implemenation issues. You are invited to browse and register if you wish to post material or participate in discussions. Please share your experience with the development and use of interoperable web services for the geosciences!


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