Connecticut 1990 Orthophoto Tile Index

+ Resource Description

Citation

Information used to reference the data.

Title: Connecticut 1990 Orthophoto Tile Index

Originators: State of Connecticut, Department of Environmental Protection (data editor and publisher)

Publication date: 20100701

Data type: vector digital data

Data location: http://www.ct.gov/deep

Description

A characterization of the data, including its intended use and limitations.

Abstract:

Connecticut 1990 Orthophoto Tile Index contains polygon features that dellineate the boundaries used by the USGS in the creation of the 1990 digital ortho quarter quads (DOQQs) for Connecticut. This index grid may be used to determine the name of the 1990 DOQQ file for a particular tile. Aerial photography was acquired during the spring of 1990. It is 1 meter orthorectified imagery, single band (black and white), leaf off. The ground resolution for this imagery is 1 meter per image pixel.

Purpose:

Use this index grid to determine the name of the Connecticut 1990 DOQQ image file for a particular tile.

Language of dataset: en

Data Type

How the data are represented, formatted and maintained by the data producing organization.

File or table name: depgis.DEP.ORTHO_1990_INDEX_TILE

Data type: vector digital data

Data format: SDE Feature Class

Native dataset 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.

Time Period of Data

Time period(s) for which the data corresponds to the currentness reference.

Date: 20100701

Currentness reference:

publication date

Status

The state of and maintenance information for the data.

Data status: Complete

Update frequency: None planned

Key Words

Words or phrases that summarize certain aspects of the data.

Theme:

Keywords: USGS, digital orthophoto quad, 1-Meter DOQ, DOQ, DOQQ, digital orthophoto quadrangle, digital orthophoto quarter quadrangle, orthophoto, orthophotography, orthoimage, orthoimagery, imagery, raster, geo-referenced raster image, aerial photo, orthophoto index, 1990

Keyword thesaurus: None

Theme:

Keywords: imageryBaseMapsEarthCover

Keyword thesaurus: ISO 19115 Topic Category

Place:

Keywords: United States of America, USA

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:

Keywords: Connecticut, CT

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.

Data Access Constraints

Restrictions and legal prerequisites for accessing or using the data after access is granted.

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. 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.

+ Spatial Reference Information

Horizontal Coordinate System

Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.

Projected coordinate system:

Name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet

Map units: survey feet

Geographic coordinate system:

Name: GCS North American 1983

Coordinate System Details

Map projection

Map projection name: 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

Reference system from which vertical distances (altitudes or depths) are measured.

Altitude system definition:

Altitude resolution: 1.000000

Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

Spatial Domain

The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.

Bounding Coordinates

In Projected or local coordinates

NAD 1983 StatePlane Connecticut FIPS 0600 Feet

Boundary	Coordinate
Left	723965.375000 (survey feet)
Right	1274453.375000 (survey feet)
Top	949453.875000 (survey feet)
Bottom	539009.500000 (survey feet)

In Unprojected coordinates (geographic)

GCS North American 1983

Boundary	Coordinate
West	-73.766497 (longitude)
East	-71.739325 (longitude)
North	42.066812 (latitude)
South	40.936017 (latitude)

+ Data Structure and Attribute Information

Overview

Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.

Direct spatial reference method: Vector

Attributes of Connecticut 1990 Orthophoto Tile Index

Detailed descriptions of entity type, attributes, and attribute values for the data.

Name: depgis.DEP.ORTHO_1990_INDEX_TILE

Type of object: Feature Class

Geometry type: Polygon

Number of records: 414

Attributes

OBJECTID

Definition:

Internal feature number.

Alias: OBJECTID Type: OID Width: 4 Precision: 10 Scale: 0

Attribute values: Sequential unique whole numbers that are automatically generated.

Attribute definition source:

ESRI

SHAPE

Definition:

Feature geometry.

Alias: SHAPE Type: Geometry Width: 4 Precision: 0 Scale: 0

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

QGNO

Alias: QGNO Type: SmallInteger Width: 2 Precision: 5 Scale: 0

Attribute definition source:

State of Connecticut, Department of Environmental Protection

QUAD_NO

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 7.5 minute 1:24,000-scale USGS topographic quadrangle maps. The Quadrangle Number value of each point feature identifies the USGS topographic quadrangle map that the orthophoto center point is located on.

Alias: QUAD_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0

Attribute values: Numeric value. Quadrangle maps published by the USGS that cover the Connecticut mainland and coastal area are assigned numeric values ranging from 1-116. Two quadrangle areas covering the waters of Connecticut in Long Island Sound are assigned numeric values 1213 and 12

Attribute definition source:

State of Connecticut, Department of Environmental Protection

QUAD_SEC

Definition:

Quadrangle Section - There are 4 sections per 7.5 minute quadrangle, each one corresponding to a 3.75 minute quarter quadrangle area. The Quadrangle Section value of each point feature identifies the (NE, NW, SE, SW) section of the 7.5 minute 1:24,000-scale USGS topographic quadrangle map that the orthophoto center point is located on.

Alias: QUAD_SEC Type: String Width: 2 Precision: 0 Scale: 0

Attribute domain values

Value	Definition
NE	Northeast quarter quandrangle
NW	Northwest quarter quandrangle
SE	Southeast quarter quadrangle
SW	Southwest quarter quandrangle

Attribute definition source:

State of Connecticut, Department of Environmental Protection

QUADRANGLE

Definition:

Quadrangle Name - Name of the 7.5 minute 1:24,000-scale USGS topographic quadrangle map published by the USGS that the orthophoto center point is located on.

Alias: QUADRANGLE Type: String Width: 25 Precision: 0 Scale: 0

Attribute values: Text valuend 12

Attribute definition source:

State of Connecticut, Department of Environmental Protection

ORTHOPHOTO_TILE

Definition:

Orthophoto tile name - Unique name assigned to each orthophoto tile.

Alias: ORTHOPHOTO_TILE Type: String Width: 50 Precision: 0 Scale: 0

Attribute definition source:

State of Connecticut, Department of Environmental Protection

SHAPE.area

Alias: SHAPE.area Type: Double Width: 0 Precision: 0 Scale: 0

SHAPE.len

Alias: SHAPE.len Type: Double Width: 0 Precision: 0 Scale: 0

ESRI Feature Description

Description of spatial objects in the data using the Environmental Systems Research Institute (ESRI) terminology.

Environmental Systems Research Institute (ESRI) terms

depgis.DEP.ORTHO_1990_INDEX_TILE

ESRI feature type: Simple

Geometry type: Polygon

Topology: FALSE

Feature count: 414

Spatial index: TRUE

Linear referencing: FALSE

SDTS Feature Description

Description of point and vector spatial objects in the data using the Spatial Data Transfer Standards (SDTS) terminology.

Spatial data transfer standard (SDTS) terms

depgis.DEP.ORTHO_1990_INDEX_TILE

Type: G-polygon

Count: 414

+ Data Source and Process Information

ESRI geoprocessing history

Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.

ESRI geoprocessing command information

1 Process

Date: 20070411 Time: 101036

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures R:\Archive\tile_index\geodatabase\Tile_Index.mdb\Ortho_1990_Index_Tile "Database Connections\depdbs11.depgis@DEP.sde\depgis.DEP.Ortho_1990_Index_Tile" DEPVECTORSTATIC 0 0 0

2 CopyFeatures_23

Date: 20081215 Time: 161545

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures "Database Connections\10.18.8.94.depgis@DEP.sde\depgis.DEP.ORTHO_1990_INDEX_TILE" "Database Connections\062174-svr.depgis@DEP.sde\depgis.DEP.ORTHO_1990_INDEX_TILE" DEPFEATUREDYNAMIC 0 0 0

+ Data Distribution Information

General

Description of the data known by the party from whom the data may be obtained, liability of party distributing data, and technical capabilities required to use the data.

Resource description:

Connecticut 1990 Orthophoto Tile Index

Distribution Point of Contact

Contact information for the individual or organization distributing the data.

Organization: State of Connecticut, Department of Environmental Protection

Standard Order Process

Common ways in which data may be obtained.

Digital form:

Format name: Shapefile, Feature Class

Format version number: ArcGIS

File decompression technique: Zip file

Digital transfer option:

Online option:

Computer information:

Network address:

Network resource name: http://www.ct.gov/deep

+ Metadata Reference

Metadata Date

Dates associated with creating, updating and reviewing the metadata.

Last updated: 20111208

Language of metadata: en

Metadata Point of Contact

Contact information for the individual or organization responsible for the metadata information.

Organization: State of Connecticut, Department of Environmental Protection

Person: Howie Sternberg

Phone: 860-424-3540

Fax: 860-424-4058

Email: dep.gisdata@po.state.ct.us

Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time

Address type: dep.gisdata@po.state.ct.us

Address:

79 Elm Street

City: Hartford

State or Province: Connecticut

Postal code: 06106-5127

Country: USA

Metadata Standards

Description of the metadata standard used to document the data and reference to any additional extended profiles to the standard used by the metadata producer.

Standard name: FGDC Content Standards for Digital Geospatial Metadata

Standard version: FGDC-STD-001-1998

Time convention: local time

Metadata profiles defining additonal information:

Profile: ESRI Metadata Profile

Online linkage: http://www.esri.com/metadata/esriprof80.html

FGDC Plus Metadata Stylesheet

Stylesheet: FGDC Plus Stylesheet

File name: FGDC Plus.xsl

Version: 2.2

Description: This metadata is displayed using the FGDC Plus Stylesheet, which is an XSL template that can be used with ArcGIS software to display metadata. It displays metadata elements defined in the Content Standard for Digital Geospatial Metadata (CSDGM) - aka FGDC Standard, the ESRI Profile of CSDGM, the Biological Data Profile of CSDGM, and the Shoreline Data Profile of CSDGM. CSDGM is the US Federal Metadata standard. The Federal Geographic Data Committee originally adopted the CSDGM in 1994 and revised it in 1998. According to Executive Order 12096 all Federal agencies are ordered to use this standard to document geospatial data created as of January, 1995. The standard is often referred to as the FGDC Metadata Standard and has been implemented beyond the federal level with State and local governments adopting the metadata standard as well. The Biological Data Profile broadens the application of the CSDGM so that it is more easily applied to biological data that are not explicitly geographic (laboratory results, field notes, specimen collections, research reports) but can be associated with a geographic location. Includes taxonomical vocabulary. The Shoreline Data Profile addresses variability in the definition and mapping of shorelines by providing a standardized set of terms and data elements required to support metadata for shoreline and coastal data sets. The FGDC Plus Stylesheet includes the Dublin Core Metadata Element Set. It supports W3C DOM compatible browsers such as IE7, IE6, Netscape 7, and Mozilla Firefox. It is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or technical support.

Instructions: On the top of the page, click on the title of the dataset to toggle opening and closing of all metadata content sections or click section links listed horizontally below the title to open individual sections. Click on a section name (e.g. Description) to open and close section content. Within a section, click on a item name (Status, Key Words, etc.) to open and close individual content items. By default, the Citation information within the Description section is always open for display.

Download: FGDC Plus Stylesheet is available from the ArcScripts downloads at www.esri.com.