National Geospatial Data Clearinghouse

This system has been developed as a joint collaboration between The Federal Geographic Data Clearinghouse (FGDC), The North Carolina Center for Geographic Information and Analysis (NC CGIA), The Clearinghouse for Networked Information Discovery and Retrieval (CNIDR) and A/WWW Enterprises.

HTML Search Form

Query available data by specifying one or more of the following:

[Spatial Coverage], [TemporalCoverage], [Full-text query], [Databases]

Add spatial search? Yes No
Coverage:


North
West East

South



Spatial Coverage help

Temporal Coverage

Find data where:

is the single date
is the range
through
is within day(s) of the present
No Date Search

Temporal Coverage help

Keyword & Fielded Search:

Enter keywords, parameters, etc. to search for in metadata records.

Field Operator Text Input And/Or
Text Search
contains
contains
Numeric Search
Progress
Don't Select on Progress
Select on Progress

Keyword and Fielded Search help

Databases:

Choose one or more specific databases to search. You can select more than one database from the scolling list. MS-Windows users will need to hold down the control key while selecting multiple indexes.

Clearinghouse
Nodes to
Query

Databases help

Maximum Number of Responses to View:
Reset the form to default values.


Help

Spatial Coverage

Values input here are compared to the Bounding_Coordinates item in section 1.51 of the CSDGM. Specify spatial coverage in the form of a bounding rectangle to search in. Returned datasets will include those that cover, intersect, or are covered by this bounding rectangle. Click a Western corner followed by an Eastern opposite corner on the map or type in values in the text input boxes. Press the "redraw" button to update map to newly entered coordinates.
Spatial Coverage

Temporal Range

Values input here are compared to the Time_Period_of_Content item in section 1.3 of the CSDGM. Choose a "date type" (single, range, relative) by pressing one of the radio buttons. Next select an operator and date, date range, or number of days from present with which to apply the search.
Temporal Coverage

Keyword and Fielded Search


Keyword and Fielded Search

Databases


Databases