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Connecticut USGS 7.5 Minute Quadrangle Index

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Publication_Date: 1985
Title:
Connecticut USGS 7.5 Minute Quadrangle Index
Edition: 2005
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Hartford, Connecticut, USA
Publisher: State of Connecticut, Department of Environmental Protection
Other_Citation_Details:
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. The 2005 Edition includes that same spatial data originally published in 1985. However, the 2005 Edition has undergone a NADCON conversion from NAD27 to NAD83 and includes metadata.
Online_Linkage: http://www.ct.gov/deep
Description:
Abstract:
This is an index of the 1:24,000-scale U.S. Geological Survey (USGS) 7.5-minute topographic quadrangle maps that cover the State of Connecticut. The index includes a polygon feature for each 7.5-minute quadrangle area. All polygon feature boundaries correspond exactly with the quadrangle boundaries depicted on the 7.5-minute topographic quadrangle maps published by the USGS because both are based on the Connecticut State Plane Coordinate System, North American Datum of 1927 (NAD27). Each polygon feature defines the same geographic area shown on the corresponding 1:24,000-scale USGS 7.5-minute topographic quadrangle map. Note, polygon attribute information is comprised of codes to uniquely identify individual quadrangle areas. This is static information that is not subject to change.
Purpose:
Use this layer to define the geographic area encompassed by the currently available set of 7.5-minute quadrangle maps published by the USGS, which are based on the Connecticut State Plane Coordinate System, North American Datum of 1927 (NAD27). For example, this layer can be used to clip or spatially query for map features in other layers that are located on a particular USGS 7.5-minute topographic quadrangle map. The polygon boundaries for this layer were not manually digitized but rather mathematically generated by projecting the latitude and longitude coordinate values that define the corners of the 7.5 minute quadrangle maps to the Connecticut State Plane Coordinate System, NAD27. Subsequently, these NAD27-based polygon areas were converted to the Connecticut State Plane Coordinate System, North American Datum of 1983 (NAD83) for consistency with other spatial data in NAD83. This geographic conversion or transformation process is commonly referred to as the North American Datum Conversion (NADCON) from NAD27 to NAD83. NADCON is the Federal standard for NAD27 to NAD83 datum transformations and is a tool for transforming coordinate values between datums. It does not improve the accuracy of the data. Also, it is important to note that as of the year this metadata was written (2005), all quadrangle maps for Connecticut were based on (published in) Connecticut State Plane Coordinate System, NAD27. None have been republished by the USGS in Connecticut State Plane Coordinate System, NAD83. For a true NAD83-based index, refer to a layer named USGS 7.5 Minute Quadrangle Index (NAD83 Area), which was generated by mathematically projecting the 7.5-minute latitude and longitude quadrangle corner coordinates directly to the Connecticut State Plane Coordinate System, NAD83.
Supplemental_Information:
CT DEP Quadrangle Numbers - The Connecticut Department of Environmental Protection established the following quadrangle numbers to uniquely identify 7.5 minute topographic quadrangle areas - Bashbish Falls MA-CT-NY (1), Ashley Falls MA-CT (2), South Sandisfield MA-CT (3), Tolland Center MA-CT (4), West Granville MA-CT (5), Southwick MA-CT (6), West Springfield MA-CT (7), Springfield South MA-CT (8), Hampden MA-CT (9), Monson MA-CT (10), Wales MA-CT (11), Southbridge MA-CT (12), Webster MA-CT (13), Oxford MA-CT-RI (14), Millerton NY-CT (15), Sharon CT-NY (16), South Canaan CT (17), Norfolk CT (18), Winsted CT (19), New Hartford CT (20), Tariffville CT-MA (21), Windsor Locks CT (22), Broad Brook CT (23), Ellington CT (24), Stafford Springs CT (25), Westford CT (26), Eastford CT (27), Putnam CT (28), Thompson CT-RI (29), Amenia NY-CT (30), Ellsworth CT (31), Cornwall CT (32), West Torrington CT (33), Torrington CT (34), Collinsville CT (35), Avon CT (36), Hartford North CT (37), Manchester CT (38), Rockville CT (39), Coventry CT (40), Spring Hill CT (41), Hampton CT (42), Danielson CT (43), East Killingly CT-RI (44), Dover Plains NY-CT (45), Kent CT (46), New Preston CT (47), Litchfield CT (48), Thomaston CT (49), Bristol CT (50), New Britain CT (51), Hartford South CT (52), Glastonbury CT (53), Marlborough CT (54), Columbia CT (55), Willimantic CT (56), Scotland CT (57), Plainfield CT (58), Oneco CT-RI (59), Pawling NY-CT (60), New Milford CT (61), Roxbury CT (62), Woodbury CT (63), Waterbury CT (64), Southington CT (65), Meriden CT (66), Middletown CT (67), Middle Haddam CT (68), Moodus CT (69), Colchester CT (70), Fitchville CT (71), Norwich CT (72), Jewett City CT (73), Voluntown CT-RI (74), Brewster NY-CT (75), Danbury CT (76), Newtown CT (77), Southbury CT (78), Naugatuck CT (79), Mount Carmel CT (80), Wallingford CT (81), Durham CT (82), Haddam CT (83), Deep River CT (84), Hamburg CT (85), Montville CT (86), Uncasville CT (87), Old Mystic CT (88), Ashaway RI-CT (89), Peach Lake NY-CT (90), Bethel CT (91), Botsford CT (92), Long Hill CT (93), Ansonia CT (94), New Haven CT (95), Branford CT (96), Guilford CT (97), Clinton CT (98), Essex CT (99), Old Lyme CT (100), Niantic CT (101), New London CT-NY (102), Mystic CT-NY-RI (103), Watch Hill RI-CT (104), Mount Kisco NY-CT (105), Pound Ridge NY-CT (106), Norwalk North CT-NY (107), Westport CT (108), Bridgeport CT (109), Milford CT (110), Woodmont CT (111), Glenville CT-NY (112), Stamford CT (113), Norwalk South CT (114), Sherwood Point CT-NY (115), Mamaroneck NY-CT (116), Unpublished Quad (1213), Unpublished Quad (1214), Unpublished Quad (1215), Unpublished Quad (1216), Orient NY (1217), Plum Island NY (1218), Unpublished Quad (1310), Unpublished Quad (1311), Unpublished Quad (1312), Unpublished Quad (1313), Bayville NY (1407), and Lloyd Harbor NY (1408).

The USGS does not publish 7.5 minute topographic quadrangle maps for quad numbers 1213, 1214, 1215, 1216, 1310, 1311, 1312, and 1313. These quadrangles are either located in the middle of Long Island Sound (and are entirely coved by water) or include small land areas along the coast shown on the southern margins of the Branford CT (96), Guilford CT (97), Clinton CT (98) topographic quadrangle maps. The Branford, Guilford, and Clinton topographic maps include areas along the Connecticut shoreline slightly beyond their southern quadrangle boundary, which is defined as 41 degrees and 15 minutes of latitude. The additionally mapped areas on these 3 quadrangle maps include locations such as the Thimble Islands, Sachems Head, and Hammonnasset Point. These areas are actually located on unpublished quadrangles  located to the south of the Branford, Guilford, and Clinton quadrangles - numbers 1213, 1214, and 1215. Unpublished quadrangle 1214 also covers Faulkners Island, which is in Long Island Sound off Guilford, Connecticut.

The Orient NY (1217), Plum Island NY (1218), Bayville NY (1407), and Lloyd Harbor NY (1408) quadrangles include portions of Connecticut waters along the Connecticut-New York state boundary in Long Island Sound in addition to sections of Long Island, New York. These quadrangle maps do not contain any Connecticut landmass.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: not applicable
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.768995
East_Bounding_Coordinate: -71.735903
North_Bounding_Coordinate: 42.129407
South_Bounding_Coordinate: 40.872423
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: 7.5 minute
Theme_Keyword: quadrangle map
Theme_Keyword: index
Theme_Keyword: USGS
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: boundaries
Theme_Keyword: location
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Place_Keyword: Connecticut
Place_Keyword: CT
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Place_Keyword: United States of America
Place_Keyword: USA
Access_Constraints: None. The data is in the public domain and may be redistributed.
Use_Constraints:
No restrictions or legal prerequisites for using the data. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Environmental Protection as the source for this information. For example, include the following data source description when printing this layer on a map: Quadrangle Boundary - From the USGS 7.5 Minute Quadrangle Index layer, published by the CT DEP. Source map scale is 1:24,000.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection
Contact_Person: Howie Sternberg
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/quadindexfullview.gif
Browse_Graphic_File_Description:
Full view of Connecticut USGS 7.5 Minute Quadrangle Index
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/quadindexquadview.gif
Browse_Graphic_File_Description:
View of Connecticut USGS 7.5 Minute Quadrangle Index with the Spring Hill, Connecticut Quadrangle (quad 41)
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/quadindexdetailview.gif
Browse_Graphic_File_Description:
Detail view of Connecticut USGS 7.5 Minute Quadrangle Index boundaries registering with the corner of a USGS topographic quadrangle map which was published in NAD27
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The USGS 7.5 Minute Topographic Quadrangle Index layer depicts the quadrangle boundary feature type shown on the 7.5 minute USGS topographic quadrangle maps as polygon features with boundaries originally based on a NAD27 horizontal datum used by the USGS to publish the topographic quadrangle maps. All attributes have valid values. Values are within defined domains. The accuracy test for the QUAD_NO attribute values was conducted by manually entering and visually inspecting and verifying the values. The QUADRANGLE attribute is the English language equivalent of (decodes) the QUAD_NO field values and was populated by joining the feature attribute data table to a lookup data table with QUAD_NO used as the relate key field. This lookup data table contain records with information that account for the unique occurrences of QUAD_NO.
Logical_Consistency_Report:
Polygon features conform to the following topological rules. Polygons are single part. There are no duplicate polygons. Polygons do not self overlap. Polygons do not overlap other polygons. The tests of logical consistency were performed by the State of Connecticut using ESRI ArcInfo software to maintain feature topology in ArcInfo coverage format. The data is topologically clean. The ArcInfo Clean function was repeatedly used following edits to verify topology and enforce a minimum distance between vertices of 4 feet (fuzzy tolerance) and a minimum allowed overshoot length of 0  (zero) feet (dangle length).
Completeness_Report:
The degree of completeness is based on the extent to which the data covers the geographic area of the State of Connecticut. The layer is complete because it includes quadrangle index polygon features for all of Connecticut, including areas defined by 7.5 minutes of latitude and longitude where the USGS published 1:24,000-scale topographic quadrangle maps and areas of 7.5 minutes of latitude and longitude entirely covered by water (in Long Island Sound) where the USGS did not publish 7.5 minute topographic quadrangle maps.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal positional accuracy of this data complies with the United States National Map Accuracy Standards for 1:24,000 scale maps. According to this standard, not more than 10 percent of the locations tested are to be in error by more than 1/50 inch (40 feet) measured on the publication scale of a USGS 7.5 minute topographic quadrangle map.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection
Publication_Date: 1985
Title:
Polygon corner tic coordinates
Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:
Publication_Place: Hartford, Connecticut
Publisher: State of Connecticut
Source_Scale_Denominator: not applicable
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1985
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
Source 1 - tics.txt
Source_Contribution:
Coordinates defining corners of 7.5 minute quadangle maps used to generate Tic registration features (Tic ID, Longitude, Latitude). Example values for one row of quadrangles:
806,-73.75000,41.75000
807,-73.62500,41.75000
808,-73.50000,41.75000
809,-73.37500,41.75000
810,-73.25000,41.75000
811,-73.12500,41.75000
812,-73.00000,41.75000
813,-72.87500,41.75000
814,-72.75000,41.75000
815,-72.62500,41.75000
816,-72.50000,41.75000
817,-72.37500,41.75000
818,-72.25000,41.75000
819,-72.12500,41.75000
820,-72.00000,41.75000
821,-71.87500,41.75000
822,-71.75000,41.75000
823,-71.62500,41.75000
906,-73.75000,41.62500
907,-73.62500,41.62500
908,-73.50000,41.62500
909,-73.37500,41.62500
910,-73.25000,41.62500
911,-73.12500,41.62500
912,-73.00000,41.62500
913,-72.87500,41.62500
914,-72.75000,41.62500
915,-72.62500,41.62500
916,-72.50000,41.62500
917,-72.37500,41.62500
918,-72.25000,41.62500
919,-72.12500,41.62500
920,-72.00000,41.62500
921,-71.87500,41.62500
922,-71.75000,41.62500
923,-71.62500,41.62500
Source_Information:
Source_Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection
Publication_Date: 1985
Title:
USGS 7.5 Minute Quadrangle Index
Publication_Information:
Publication_Place: Hartford, Connecticut
Publisher: State of Connecticut
Source_Scale_Denominator: 24000
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1985
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
Source 2 - Index
Source_Contribution:
Index is in ArcInfo coverage format with polygon and tic features.
Source_Information:
Source_Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection (data compiler, editor, and publisher)
Publication_Date: 1985
Title:
USGS 7.5 Minute Quadrangle Index
Edition: 2005
Publication_Information:
Publication_Place: Hartford, Connecticut
Publisher: State of Connecticut
Online_Linkage: http://www.ct.gov/deep
Source_Scale_Denominator: 24000
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1985
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
Source 3 - Index27
Source_Contribution:
Index 27 is in ArcInfo coverage format with polygon and tic features.
Source_Information:
Source_Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection (data compiler, editor, and publisher)
Publication_Date: 1985
Title:
USGS 7.5 Minute Quadrangle Index
Edition: 2005
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Hartford, Connecticut
Publisher: State of Connecticut
Other_Citation_Details:
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. The 2005 Edition includes that same spatial data originally published in 1985. However, the 2005 Edition has undergone a NADCON conversion from NAD27 to NAD83 and includes metadata.
Online_Linkage: http://www.ct.gov/deep
Source_Scale_Denominator: 24000
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1985
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
Source 4 - Quad_Index.shp
Source_Contribution:
Quad_Index.shp is in ESRI Shapefile format with polygon features.
Source_Information:
Source_Citation:
Citation_Information:
Originator: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Publication_Date: 1985
Title:
Connecticut USGS 7.5 Minute Quadrangle Index
Edition: 2005
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Hartford, Connecticut, USA
Publisher: State of Connecticut, Department of Environmental Protection
Other_Citation_Details:
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. The 2005 Edition includes that same spatial data originally published in 1985. However, the 2005 Edition has undergone a NADCON conversion from NAD27 to NAD83 and includes metadata.
Online_Linkage: http://www.ct.gov/deep
Source_Scale_Denominator: 24000
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1985
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
Source 5 - Quad_Index
Source_Contribution:
Quad Index is in GeoDatabase Feature Class format
Process_Step:
Process_Description:
Create Quadrangle Index - The quadrangle index polygon and tic registration features were mathematically created using ArcInfo 4 software to generate boundary line and tic registration features from latitude and longitude values that define the corners of the USGS 7.5 minute topographic quadrangle map that cover the State of Connecticut. For example, an initial ArcInfo coverage was generated to store (preliminary quadrangle boundary) line features based on a fishnet-type grid orientation with an origin of -73.45,40.875 (SW corner of quad 116), an upper left coordinate of -73.75,42.25 (NW corner of quad 406), an upper right coordinate of -71.625,42.25 (NE corner of quad 422), and a cell size of 0.125,0.125 (7.5 minutes). These features represented lines of latitude and longitude spaced at 7.5-minute intervals. Tic features were also generated and added to this coverage base on coordinate values from Source 1 (tics.txt). Spatial data was initially represented in Geographic Coordinates (unprojected units of latitude and longitude). In preparation for projecting the data to the Connecticut State Plane Coordinate System, five evenly spaced vertices were programmatically added along all quadrangle boundaries. This would allow line features to properly curve at vertex locations as opposed to simply projecting a straight line between quadrangle corners. The USGS 7.5 minute topographic quadrangle map are published in the Connecticut State Plane Coordinate System of 1927 (NAD27) so the quadrangle boundaries shown on these maps are not depicted as straight lines. Five vertices were programmatically added to each quadrangle boundary line feature at an interval of 0.021 minutes (0.125 / 6 = 0.021). Note, five vertices require 6 segments. ArcInfo coverage Fuzzy and Dangle tolerance settings were set to 4 and 0 (zero) feet, respectively. Based on the line feature geometry, polygon features were built and added to the Quadrangle Index Coverage, followed by manually attributing each polygon feature with the corresponding quadrangle number and quadrangle name information. Using ArcInfo 4 software, the coverage was projected from Geographic Coordinates to the Connecticut State Plane Coordinate System, North American Datum of 1927 (NAD27) to match the datum used by the USGS to publish the 1:24,000-scale 7.5 minute topographic quadrangle map series. The name of the resulting ArcInfo Coverage is INDEX.
Source_Used_Citation_Abbreviation:
Source 1 - tics.txt
Process_Date: 1985
Source_Produced_Citation_Abbreviation:
Source 2 - Index
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection
Contact_Person: Jonathan Scull
Process_Step:
Process_Description:
Datum conversion - Using ESRI ArcInfo software, the Hydrography Master layer was converted from the Connecticut State Plane Coordinate System of 1927 (NAD27) to the Connecticut State Plane Coordinate System of 1983 (NAD83). The North American Datum Conversion (NADCON) data transformation was used.
Source_Used_Citation_Abbreviation:
Source 2 - Index
Process_Date: 1999
Source_Produced_Citation_Abbreviation:
Source 3 - Index27
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection
Contact_Person: Howie Sternberg
Process_Step:
Process_Description:
Export to Shapefile Format - Converted polygon feature data from ArcInfo Coverage named INDEX27 to a Shapefile named Quad_Index.shp. Excluded the AREA, PERIMETER, INDEX27#, and INDEX27-ID attributes from the Shapefile because their values are only maintained by ArcInfo software with data that is in ArcInfo Coverage format.
Source_Used_Citation_Abbreviation:
Source 3 - Index27
Process_Date: 2005
Source_Produced_Citation_Abbreviation:
Source 4 - Quad_Index.shp
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection
Contact_Person: Howie Sternberg
Process_Step:
Process_Description:
Convert to GeoDatabase Feature Class format - Defined new Feature Class named Quad_Index; and imported the attribute definitions, loaded features and imported metadata from  Quad_Index.shp shapefile. 

Spatial Reference Properties for Feature Class:

Coordinate System: NAD_1983_StatePlane_Connecticut_FIPS_0600_Feet
XY Domain MinX: 100000; MaxX: 2247483.645
XY Domain MinY: 200000; MaxY: 2347483.645
Precision: 1000
Source_Used_Citation_Abbreviation:
Source 4 - Quad_Index.shp
Process_Date: 20060101
Source_Produced_Citation_Abbreviation:
Source 5 - Quad_Index
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection (data compiler, editor, publisher)
Contact_Person: Howie Sternberg
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106
Country: USA
Contact_Voice_Telephone: 860-424-3540
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Spatial_Data_Organization_Information:
Indirect_Spatial_Reference_Method:
State of Connecticut, United States of America
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 128
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Lambert Conformal Conic
Standard_Parallel: 41.200000
Standard_Parallel: 41.866667
Longitude_of_Central_Meridian: -72.750000
Latitude_of_Projection_Origin: 40.833333
False_Easting: 999999.999996
False_Northing: 499999.999998
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000250
Ordinate_Resolution: 0.000250
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Connecticut USGS 7.5 Minute Quadrangle Index
Entity_Type_Definition:
USGS 7.5 Minute Topographic Quadrangle areas represented as polygon features.
Entity_Type_Definition_Source:
State of Connecticut, Department of Environmental Protection
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: QUAD_NO
Attribute_Definition:
Quadrangle Number - An ID number designated by the State of Connecticut, Department of Environmental Protection, Natural Resources Center in the 1980's to uniquely identify individual quadrangle maps.
Attribute_Definition_Source:
State of Connecticut, Department of Environmental Protection
Attribute_Domain_Values:
Unrepresentable_Domain:
Numeric value. Quadrangle maps published by the USGS that cover the Connecticut mainland and coastal area are assigned numeric values ranging from 1-116. Other quadrangle areas that encompass the waters of Connecticut in Long Island Sound are assigned numeric values range from 1213 to 1218, 1310 to 1313, and 1407 to 1408.
Attribute:
Attribute_Label: QUADRANGLE
Attribute_Definition:
Quadrangle Name - Name of the quadrangle map published by the USGS
Attribute_Definition_Source:
US Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Text value
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.area
Attribute:
Attribute_Label: SHAPE.len
Overview_Description:
Entity_and_Attribute_Overview:
Use the QUAD_NO attribute to uniquely identify features.
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Enviromental Protection
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Resource_Description: Connecticut USGS 7.5 Minute Quadrangle Index
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile, Feature Class
Format_Version_Number: ArcGIS
File_Decompression_Technique: Zip file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://www.ct.gov/deep
Fees: An online copy of the data may be accessed without charge.
Custom_Order_Process:
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
Technical_Prerequisites:
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
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Metadata_Reference_Information:
Metadata_Date: 20111208
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Environmental Protection
Contact_Person: Howie Sternberg
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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