METADATA FOR THE MAPJOINED ADIRONDACK SURFICIAL GEOLOGY MAP

Identification Information:

Citation:
Citation Information:
Originator: NYS Museum/NYS Geological Survey
Publication Date: 200009
Title of Data Set: Surficial geology of the Adirondack Park
Edition: 2000
Presentation Form: map
Publication Information:
Publication Place: Ray Brook, New York State
Publisher: New York State Adirondack Park Agency
Online Linkage:

Description:
Abstract: This coverage contains the surficial geology of the Adirondack Park, New York State. The New York State Geological Survey divided the data into five sections, or regions, that together covered the State. Two of the regions, Hudson-Mohawk and Adirondack, comprise the Adirondack Park. Data from the two regions were combined into a single coverage.

Purpose: The data was created by the New York State Geological Survey for the New York State Emergency Management Office. Surficial geology for two regions was combined and clipped to the extent of a 10-mile buffer of the Adirondack Park boundaries for the New York State Adirondack Park Agency.

Supplemental Information: The original data sets were published on February 22, 1999. The data were digitized from NYS Geological Survey & Chart Series Number 15, available from the NYS Museum Publications Department http://www.nysm.nysed.gov/gis.html

Scale: 1:250000

Time Period of Content:
Time Period Information:
Beginning Date:
Ending Date: Present
Currentness Reference: ground condition

Status:
Progress: Complete
Maintenance and Update Frequency: None Planned

Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -75.519593
East Bounding Coordinate: -73.242235
North Bounding Coordinate: 45.001941
South Bounding Coordinate: 42.905429

Keywords:
Theme:
Theme Keyword Reference: NYS GIS Clearinghouse categories
Theme Keyword:surficial geology
Theme:
Theme Keyword Thesaurus: None
Theme Keyword:surficial geology
Place:
Place Keyword Thesaurus: None
Place Keyword: Adirondack Park, New York State

Access Constraints: Data are available from the Adirondack Park Agency

Use Constraints: Data are to be used at the scale intended.

Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: New York State Adirondack Park Agency
Contact Person Primary:
Contact Person: John W. Barge
Contact Address:
Address Type: Mailing Address
Address: P.O. Box 99, Route 86
City: Ray Brook
State or Province: New York
Postal Code: 12977
Contact Voice Telephone: 518-891-4050
Contact Fascimile: 518-891-3938
Contact Electronic Mail Address: jwbarge@gw.dec.state.ny.us

Native Data Set Environment: Windows NT, ARC/INFO version 8.0, 2.7 MB

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Data Quality Information:

Attribute Accuracy Report:
Logical Consistency Report: Topologically Clean
Completeness Report: Topological and attribute accuracy was verified by visually comparing the data overlaid upon the Clearinghouse data in Arc/Info ArcPlot.
Positional Accuracy:
Horizontal Positional Accuracy Report:
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value:
Horizontal Positional Accuracy Explanation:

Process Description:
Applied GIS, Inc. processing steps: The digital Arc/Info interchange file for the Hudson/Mohawk and Adirondack map sheets were downloaded from the New York State Museum website (http://www.nysm.nysed.gov/gis.html). The two files were uncompressed using WinZip. The Arc/Info MAPJOIN command was used to combined the two coverages into a single, new, data set. Common boundaries between polygons with the same Material value were then eliminated using the Arc/Info Dissolve process. The resulting coverage was trimmed using the Arc/Info Clip procedure to the spatial extent of a 10-mile buffer of the Adirondack Park boundary using the APA's Park boundary layer. The coverage was then re-projected to NAD83. The final data set was converted into an Arc/Info interchange filed named bedrock.e00 for easy data transfer.

Applied GIS, Inc. QA/QC analysis: Quality Assurance/Quality Control was determined by a series of tests. The final coverage was visually inspected interactively through comparison to the source material (original coverages downloaded) in ArcView. Two Views were opened, with one window displaying the thematically mapped final coverage and the second window displaying the individual source coverages thematically mapped. The thematic symbolization in each View represented the unique "Material" type categories. The two windows were tiled adjacent to each other and zoomed in to the same geographic extent. The operator then checked for consistency between the source material and the final coverage in terms of shade and position of graphic objects and attributes (fields and contents).

Due to dissolving boundaries between polygons with common attribution, the total number of polygons, arcs, and label points in the final coverage should have contained fewer objects than the individual source coverages combined. Checking the coverage descriptions in Arc/Info for the final coverage and the source material verified the number of objects (polygons, arcs, and label points) in each data set. Generating summary tables in ArcView for the source coverages and the final data set compared the number of polygons within each "Material" class.
The accuracy of the number and type of attribute fields was verified by comparing the Arc/Info Items listing for the three coverages. Creating and comparing summary tables in ArcView checked valid attribute values. Inconsistencies (e.g., missing values) were identified and rectified where possible.

The geographic extent was confirmed in two ways. First, the final coverage was zoomed to the full extent to identify potential outliers located beyond the 10-mile Adirondack Park buffer. Second, the boundary coordinates of the coverage were compared to the 10-mile Adirondack Park buffer coverage extent.

Objects with extreme area size (small or large) were identified in ArcView by sorting the attribute table by area. Small slivers and unusually large polygons were examined and rectified as needed.

The coordinate system of the final data set was verified by examining the coverage description in Arc/Info, as well as overlaying the data over a coverage known to be in the desired projection. Consistency between the known coverage and the final surficial geology data layer was evaluated.

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Spatial Data Organization Information:

Direct Spatial Reference Method: Vector

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Spatial Reference Information:

Horizontal Coordinate System Definition:
Geographic: Universal Transverse Mercator (UTM)
UTM Zone: 18
Geodetic Model:
Horizontal Datum: North American Datum of 1983

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Entity and Attribute Information:

Overview Description:

Entity and Attribute Overview:
Attribute Name Description Attribute Type Input Width Output Width Decimal Places
Area Area of the polygon Floating Point 13 13 6
Perimeter Perimeter of the polygon Floating Point 13 13 6
Surficial Internal ID number of the polygon Binary 11 11 0
Surficial-id User ID number of the polygon Binary 11 11 0
Material Surficial classification code Character 3 3 0

A complete listing of valid Material codes and respective code descriptions is provided at http://www.nysm.nysed.gov/data/surficial_alpha.html.

Entity and Attribute Detail Citation: Attribute domain information was developed by the New York State Museum

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Distribution Information:

Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: New York State Adirondack Park Agency
Contact Person Primary:
Contact Person: John W. Barge
Contact Address:
Address Type: Mailing Address
Address: P.O. Box 99, Route 86
City: Ray Brook
State or Province: New York
Postal Code: 12977
Contact Voice Telephone: 518-891-4050
Contact Fascimile Telephone: 518-891-3938
Contact Electronic Mail Address: jwbarge@gw.dec.state.ny.us
Distribution Liability:
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ARCE
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name:
Fees: None

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Metadata Reference Information:

Metadata Date: 200008
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: New York State Adirondack Park Agency
Contact Person Primary:
Contact Person: John W. Barge
Contact Address:
Address Type: Mailing Address
Address: P.O. Box 99, Route 86
City: Ray Brook
State or Province: New York
Postal Code: 12977
Contact Voice Telephone: 518-891-4050
Contact Fascimile Telephone: 518-891-3938
Contact Electronic Mail Address: jwbarge@gw.dec.state.ny.us

Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998

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