Publishing Clearinghouse resources to geodata.gov

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Publishing Clearinghouse resources to geodata.gov

• Doug Nebert
• FGDC Secretariat
• Geospatial One-Stop Team
• May 21, 2004

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NSDI a Foundation for GOS

• Geospatial One-Stop (GOS) implements the
  principles of the NSDI spelled out in Executive
  Order 12906 (recently revised)
• GOS builds on the resources already available in
  the NSDI FGDC and endorsed external Framework
  Standards, NSDI Clearinghouse Network
• Operated as project coordinated through FGDC
  Secretariat with many agency partners

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Geodata.gov and the NSDI Clearinghouse

• Over 150 collections of metadata exist within
  searchable NSDI Clearinghouse Nodes in the US
• All FGDC metadata records are searchable by
  fields and full-text through six replicated
  search gateways
• Additional non-Z39.50 metadata collections exist
  that should be part of the NSDI via geodata.gov

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What's different about One-Stop?

• GOS has a timeline for implementation of the
  various modules
• Standards are being developed with multi-sectoral
  stakeholders as national (ANSI) standards, not
  FGDC ones
• Visibility of the initiative as one of 24 e-gov
  initiatives from the Administration
• Goals include measures of costs and savings
  through cost-sharing in data acquisition,
  processing, and service of geospatial data

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Some operational features

• geodata.gov will speed and simplify search and
  browse of metadata as a replacement for the
  domestic NSDI Gateways
• Metadata are harvested from remote collections
  into a single metadata cache to speed search
  and ranking
• Browsing for geospatial data is made possible
  through common ISO Categories

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Portal at geodata.gov

• OGC Web Map Services (WMS) and ArcIMS image
  services supported in viewer where links provided
  in metadata (Online_Linkage)
• Data, map services, static maps, and applications
  are among the resource types indexed
• Channels (thematic communities) post selected
  browseable content

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How do I publish?

• Before you can publish metadata in geodata.gov,
  you need to register as a publisher
• After your registration is completed, you will
  have username and password to access the portal
  as a publisher

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1. Start registration Login
2. Register online
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4. Receive e-mail and confirm registration
3. Complete user account information
5. Read and accept publisher agreement
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6. Complete publisher registration
Publisher main menu
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Current Publication Options

• Users may contribute metadata one of three ways
• Enter FGDC metadata into a form at geodata.gov
  and they are stored and indexed there
• Upload metadata as FGDC XML to the geodata.gov
  site
• Register their existing metadata collection to be
  harvested into the GOS metadata repository

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data
data
metadata cache
geodata.gov
map viewer
data
data
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Data Entry Form
If you do not have any FGDC metadata and
anticipate only a few records to be published to
geodata.gov you can use an online entry form to
collect abbreviated FGDC metadata that will be
hosted at geodata.gov
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Upload XML Metadata
If you have access to a metadata editor such as
ArcCatalog but do not have a Z39.50 server or
ArcIMS Metadata Server you can upload a small set
of FGDC metadata to geodata.gov
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Register site(s) to be harvested
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Help files
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Metadata Validation
Derived values, for example resource type (Live
Map, Downloadable Data)
Valid values for minimum FGDC
http//mywebsite.org/index.html
http//myserver/image/mymap
OR https//myserver/feature/myfeaturemap
OR http//myserver/wms?requestgetmap
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Harvesting Option

• If you have or would like to maintain a
  collection of metadata at your site and can let
  geodata.gov know its location, geodata.gov can
  harvest or fetch new and updated metadata to
  make it searchable
• You can describe any type of resource (planned
  data activity, existing data, a map service, an
  application, etc.) using your published set of
  metadata

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Harvesting options

• A provider wanting to have content harvested
  into in geodata.gov can register
• Z39.50 GEO Metadata server (NSDI Clearinghouse
  Node)
• ArcIMS Metadata Server
• OAI-PMH (Open Archives Initiative, Protocol for
  Metadata Harvest)
• Web Accessible Folder

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Harvesting capabilities

• Harvesting is a scheduled retrieval of metadata
  from a remote collection, such as an existing
  Clearinghouse Node
• The harvester detects new content and brings it
  into a metadata cache at geodata.gov for
  inclusion in search
• Scheduling can be established in the
  registration profile of each provider

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If you have a Z39.50 Clearinghouse Node

• If your metadata collection is served on Z39.50
  (such as Isite), you need to implement the newest
  version of Isite (2.10)
• Update version for Isite is available at
• ftp//ftp.awcubed.com/pub/Software/Isite2/
• Other brands of Z39.50 software (Compusult,
  Intergraph, ESRI, Blue Angel) will be
  implementing the new features for harvest in
  coming months

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Web Accessible Folder

• Simplest option for publishing moderate numbers
  of metadata records (
• Create browse-enabled web directory (directory
  listing view, no default.htm or index.html file
  present) with FGDC XML and optionally HTML
  records present
• Register organization and WAF location with
  geodata.gov
• Initial harvest pulls all content, subsequent
  harvests pull only changed content based on file
  time-stamps

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Inclusion Strategy

• FGDC Staff will be working on an outreach and
  inclusion schedule to get all domestic
  Clearinghouses (Z39.50 and otherwise) from
  State/Local, Federal, and Commercial sources
• Encourage partnerships and community networking
  to include as many resources as possible

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Metadata harvest counselors

• Federal
• Sharon Shin, sharon_shin_at_usgs.gov
• Sharon Maccini, smaccini_at_usgs.gov
• Western States
• Doug Nebert, ddnebert_at_fgdc.gov
• Intermountain/Great Plains
• Matt Orstad, morstad_at_usgs.gov
• Gulf/Southern States
• Lynda Wayne, lwayne_at_fgdc.gov
• Upper Midwest, Carolinas
• Melissa Wegner, wegner_at_usgs.gov
• Northeast States
• Michelle Anthony, anthony_at_usgs.gov

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