Related URL

Definition

Syntax

Group: Related_URL
   URL_Content_Type:
   URL:
   Group: Description

   End_group
End_group

Specifications

• This group is optional.
• This group may be repeated.
• The URL subfield may be repeated per group, but the URL_Content_Type and Description subfields may not be repeated per group.
• If applicable, URL_Content_Type should be selected from the URL Content Type Valids List: see Appendix A.
• New URL_Content_Type valids may be submitted for review. URL_Content_Type valids may be 1 to 31 characters from the printable ASCII character set.
• If the Related_URL Group is included in the DIF, URL is required.
• URLs may be 1 to 160 characters of the printable ASCII character set.
• The Description field may contain multiple lines of 1 to 80 characters per line. Characters may be selected from the printable ASCII character set.

More Definitions

• URL_Content_Type: Describes the type of URL being referenced. This field is used only in the case where a database search of a specific URL type is necessary (see valids list).
• URL: Hypertext link to the remote resource associated with the data set.
• Description: Up to several lines of text describing the kind of information offered by the URL and associated with the data set.

Recommendations

• The Related_URL Group should be used to link to resources associated with the data set such as data-specific software packages, related data servers, calibration data, project home pages, and metadata extensions.
• URL Content Type valids should only be used for these specific instances: DODS Data Server, DIAL Data Server, Calibration/Validation Data, Software Packages, FGDC Metadata, NBII Metadata, and Project Home Page. New URL Type valids may be suggested for review.
• Most often, URL Content Type will not be entered. Rather, descriptive information about the associated data resource should be entered in the Description field.

Examples

Group: Related_URL
   URL_Content_Type: DODS Data Server
   URL: http://ferret.wrc.noaa.gov/cgi-bin/nc/data/coads_climatology.nc
   Group: Description
      The following dataset is available on this DODS Server:
      COADS Global Ocean Climatology SST, Air Temp and Winds
   End_Group
End_Group 

Group: Related_URL
   URL: http://isccp.giss.nasa.gov/isccp.html
   Group: Description
      This is the Home Page for the International Satellite Cloud Climatology
      Project (ISCCP). Additional project data, documentation, and software
      are available from this World Wide Web site.
   End_Group
End_Group

Group: Related_URL
   URL: gopher://lternet.edu/
   Group: Description
      Long-Term Ecological Research (LTER) Network Office gopher server.
   End_Group
End_Group

Group: Related_URL
   URL:  ftp://cdiac.esd.ornl.gov/
   Group: Description
      The Carbon Dioxide Information Analysis Center (CDIAC) FTP archive.
   End_Group
End_Group

Group: Related_URL
   URL: http://www.grid.unep.org/nbid0013.htm
   Group: Description
      Detailed metadata from UNEP for the African Tse-tse Fly 
      Distribution data set. 
   End_Group
End_Group