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Connecticut 2010 Coastal Orthophoto Tile Index
SDE Feature Class - depgis.DEP.ORTHO_2010_COAST_INDEX_TILE
FGDC, ESRI Metadata
DescriptionGraphicSpatialData StructureData QualityData SourceData DistributionMetadata
+ Resource Description
Citation
Information used to reference the data.
Title: Connecticut 2010 Coastal Orthophoto Tile Index
Originators: Photo Science, Inc.
Publisher: CTDEP
Publication place: CT
Publication date: 2010
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:
The Orthophoto Tile layout depicts the extent of the orthophotos that comprise the 2010 Connecticut Multispectral Coastal Imagery.
Purpose:
To identify the name and location/extyent of the orthophotos delivered as part of 2010 Connecticut Multispectral Coastal Imagery.
Supplemental information:
The 2010 Connecticut Multispectral Coastal Imagery is 1:12,000-scale, 4-band (red, green, blue, and near infrared) tide controlled imagery taken over 3 distinct days during a June 15 to September 15, 2010 flight window.  The imagery can be configured to show either true color or color infrared versions of the coastal landscape.

The geographic extent (~320 sq mi) of the photography includes: 
* all land areas within one-thousand (1000) feet of Mean High Water (MHW) and within one-thousand (1000) feet of state-regulated tidal wetlands;
* an area of at least two-thousand (2000) feet waterward of the immediate shoreline of Long Island Sound in order to clearly depict the interface between the shorelands and coastal waters;  
* all offshore islands within the territorial borders of the State of Connecticut including Goose Island and Falkner Island (offshore of Branford); Calf Islands and Great Captain Island (offshore of Greenwich); Norwalk Islands (offshore of Norwalk); Thimble Islands (offshore of Branford); Sandy Point (offshore of Stonington); and all islands in the Connecticut part of Fishers Island Sound; and  
* the main stem of the Connecticut River up to the Massachusetts State line.  

To maximize the quality of the images and their contents, photography also conformed to the following flight specifications:
* photos were only taken during times of no/minimal cloud cover when lighting and weather conditions optimized the data collection;   
* solar altitude was no more than 65 degrees and no less than 30 degrees;
* the ground detail was not obscured by flooding; 
* the foliage (salt marsh vegetation in particular) was fully developed;
* seasonal conditions (summer) favored maximum human use/recreation activities (e.g., boats & temporary docks/structures in water, etc.)
* photo times were planned within 1 hour window before or after a predicted low tide based on National Oceanic & Atmospheric Administration (NOAA) predicted tide tables.
* Forward overlap is 60% and side image overlap is 30%
* Crab and Tilt do not exceed 5 degrees.

The ground resolution of the imagery is approximately 1ft per pixel.  Data is compiled at 1:12,000 scale. This data is not updated.
Dataset credit:
Photoscience, Inc., of Lexington, KY performed the 2010 Connecticut Multispectral Coastal Imagery Project via an MOU between the State of Connecticut Department of Environmental Protection and the NOAA Coastal Services Center as part of the Coastal Geospatial Services Contract (CGSC), a FAR Part 36, Architectural and Engineering Contract vehicle to provide geospatial services.
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_2010_COAST_INDEX_TILE
Data type: vector digital data
Data format: SDE Feature Class
Native dataset environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Date: 2010
Date: 6/18/2010
Date: 6/19/2010
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: imageryBaseMapsEarthCover
Keyword thesaurus: ISO 19115 Topic Category
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.
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.
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.  Please include this metadata record in any redistributions.
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 1:12,000 scale (1 inch = 1,000 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: "2010 Connecticut Multispectral Coastal Digital Orthophotography, compiled by PhotoScience, Inc. and published by the State of Connecticut, Department of Environmental Protection. Source map scale is 1:12,000."
+ Graphic Example
Browse Graphic
Graphic illustration of the data.
Browse graphic 1
Open - Full view of Connecticut 2010 Coastal Orthophoto Tile Index
Graphic Image

Browse graphic 2
Open - Detail view of Connecticut 2010 Coastal Orthophoto Tile Index
Graphic Image
+ 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: 0.000328
Ordinate resolution: 0.000328
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
BoundaryCoordinate
Left746900.000008 (survey feet)
Right1257299.999875 (survey feet)
Top944099.999902 (survey feet)
Bottom551399.999870 (survey feet)
In Unprojected coordinates (geographic)
GCS North American 1983
BoundaryCoordinate
West-73.681835 (longitude)
East-71.802703 (longitude)
North42.052120 (latitude)
South40.970596 (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 2010 Coastal Orthophoto Tile Index
Detailed descriptions of entity type, attributes, and attribute values for the data.
Name: depgis.DEP.ORTHO_2010_COAST_INDEX_TILE
Type of object: Feature Class
Geometry type: Polygon
Number of records: 589
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
Name
Definition:
Tile Name
Alias: Name Type: String Width: 50 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
(not provided)
"CT2010_coastal_<SW corner cords>" with 5 digits from the X and 4 from the Y.  CT2010_Coastal_101376284 for example. 
Attribute definition source:
PhotoScience, Inc.
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_2010_COAST_INDEX_TILE
ESRI feature type: Simple
Geometry type: Polygon
Topology: FALSE
Feature count: 589
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_2010_COAST_INDEX_TILE
Type: G-polygon
Count: 589
+ Data Quality and Accuracy Information
General
Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.
Logical consistency report:
Verification of logical consistency was performed by the State of Connecticut, Department of Environmental Protection using ESRI ArcGIS software.  No automated procedures or tests were performed to guarantee desired topology/completeness other than visual inspection.
Completeness report:
The completeness of the data reflects the feature content of the data sources, which include the 2010 Connecticut Multispectral Coastal Imagery.
+ Data Source and Process Information
Data Sources
Information about the source data used to construct or derive the data.
Data source information
CTDEP Grid
Title: CTDEP Photo Grid
Originators: CTDEP
Publication date: 2004
Data type: vector digital data
Source contribution:
A version of a CTDEP grid for an aerial flight in 2004, adjusted to cover the project extent of the 2010 flight.  Due to issues with the orientation and projecttion this was not able to be directly used, but served as a surrogate to create a comparable version.
Date: 2004
Currentness reference:
publication date
2010 Tiles
Title: 2010 Orthophoto Tiles
Originators: Photo Science, Inc.
Publication date: 2010
Data type: vector digital data
Source contribution:
Final version of 2010 orthophoto tiles.
Date: 2010
Currentness reference:
publication date
Process Steps
Information about events, parameters, tolerances and techniques applied to construct or derive the data.
Process step information
Process Step 1
Process description:
The CTDEP grid layout was provided to PhotoScience but during the process an issue was discovered with it.  The layout was derived from an other quarter quad layout and the problem  is that it produced tiles that were actually trapezoids, instead of rectangles.  When PhotoScience ingest that into their software to cut the sheets, it doesn't know how to handle them, so they came up with a new layout, based on the size of the tiles you gave us (5800ft X 7700ft).  They also had to slightly move the tiles in order to get them on even coordinates.  The same area is being covered, so there is no issue with lost data.

Additionally, a naming scheme was delveoped to name the grids by using the convention "CT2010_coastal_<SW corner cords>" with 5 digits from the X and 4 from the Y.  CT2010_Coastal_101376284 for example. 
Process date: 2010
Data Source used
CTDEP Grid
Title: CTDEP Photo Grid
Originators: CTDEP
Publication date: 2004
Data type: vector digital data
Source contribution:
A version of a CTDEP grid for an aerial flight in 2004, adjusted to cover the project extent of the 2010 flight.  Due to issues with the orientation and projecttion this was not able to be directly used, but served as a surrogate to create a comparable version.
Date: 2004
Currentness reference:
publication date
Data Source produced
2010 Tiles
Title: 2010 Orthophoto Tiles
Originators: Photo Science, Inc.
Publication date: 2010
Data type: vector digital data
Source contribution:
Final version of 2010 orthophoto tiles.
Date: 2010
Currentness reference:
publication date
ESRI geoprocessing history
Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.
ESRI geoprocessing command information
1 Process
Date: 20110504 Time: 093129
Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued: CopyFeatures Y:\Archive\Base_Map_Imagery\Ortho_2010_Coast_Infrared_1ft\Final_Deliverables\2010_CoastalImagery_OrthophotoTileLayout.shp Y:\Workspaces\GIS_Staging\Location\ORTHO_2010_COAST.gdb\ORTHO_2010_COAST_INDEX_TILE # 0 0 0
2 CopyFeatures_2
Date: 20110504 Time: 094144
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued: CopyFeatures Y:\Workspaces\GIS_Staging\Location\ORTHO_2010_COAST.gdb\ORTHO_2010_COAST_INDEX_TILE "Database Connections\10.18.8.60.depgis@dep_92dc.sde\depgis.DEP.ORTHO_2010_COAST_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 2010 Coastal Orthophoto Tile Index
Distribution liability:
The data is in the public domain and may be redistributed.  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 1:12,000 scale (1 inch = 1,000 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: "2010 Connecticut Multispectral Coastal Digital Orthophotography, compiled by PhotoScience, Inc. and published by the State of Connecticut, Department of Environmental Protection. Source map scale is 1:12,000."
Technical prerequisites:
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Organization: State of Connecticut, Department of Environmental Protection
Phone: 860-424-3034
Fax: 860-424-4054
Email: dep.gisdata@po.state.ct.us
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address:
79 Elm St.
City: Hartford
State or Province: CT
Postal code: 06106-5127
Country: USA
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Size of the data: 0.076
Transfer size: 0.076
Digital transfer option:
Online option:
Computer information:
Network address:
Network resource name: http://www.ct.gov/deep
Fees: Copies of the data may be accessed without charge.
Custom Order Process
Description of custom distribution services available.
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.
+ Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20120119
Language of metadata: en
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: State of Conneticut, Department of Environmental Protection
Person: Kevin O'Brien
Phone: 860-424-3034
Fax: 860-414-4052
Email: dep.gisdata@po.state.ct.us
Hours of service: Monday through Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical
Address:
79 Elm St.
City: Hartford
State or Province: CT
Postal code: 06106-5127
Country: US
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
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.
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